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author | nobody <> | 2002-09-07 00:00:05 +0000 |
---|---|---|
committer | nobody <> | 2002-09-07 00:00:05 +0000 |
commit | c1aa2a27e755c883b5c49b223120dfb712ea4e28 (patch) | |
tree | a98633075cd1f2b034b49446e83e522708d11f68 /sim/arm/armemu.c | |
parent | 2e3c0e2427295c9cc09a8a707dfba38d50e2ba30 (diff) | |
download | gdb-sid-20020905-branch.zip gdb-sid-20020905-branch.tar.gz gdb-sid-20020905-branch.tar.bz2 |
This commit was manufactured by cvs2svn to create branchsid-20020905-branchpointsid-20020905-branch
'sid-20020905-branch'.
Sprout from gdb_5_3-branch 2002-09-03 22:29:15 UTC nobody 'This commit was manufactured by cvs2svn to create branch 'gdb_5_3-branch'.'
Cherrypick from master 2002-09-07 00:00:04 UTC Alan Modra <amodra@gmail.com> 'daily update':
bfd/ChangeLog
bfd/config.bfd
bfd/version.h
include/ChangeLog
include/dis-asm.h
libiberty/ChangeLog
libiberty/regex.c
opcodes/ChangeLog
opcodes/disassemble.c
opcodes/ppc-dis.c
opcodes/ppc-opc.c
Delete:
djunpack.bat
gdb/CONTRIBUTE
gdb/COPYING
gdb/ChangeLog
gdb/ChangeLog-1990
gdb/ChangeLog-1991
gdb/ChangeLog-1992
gdb/ChangeLog-1993
gdb/ChangeLog-1994
gdb/ChangeLog-1995
gdb/ChangeLog-1996
gdb/ChangeLog-1997
gdb/ChangeLog-1998
gdb/ChangeLog-1999
gdb/ChangeLog-2000
gdb/ChangeLog-2001
gdb/ChangeLog-3.x
gdb/MAINTAINERS
gdb/Makefile.in
gdb/NEWS
gdb/PROBLEMS
gdb/README
gdb/TODO
gdb/a68v-nat.c
gdb/abug-rom.c
gdb/acconfig.h
gdb/acinclude.m4
gdb/aclocal.m4
gdb/ada-exp.y
gdb/ada-lang.c
gdb/ada-lang.h
gdb/ada-lex.l
gdb/ada-tasks.c
gdb/ada-typeprint.c
gdb/ada-valprint.c
gdb/aix-thread.c
gdb/alpha-linux-tdep.c
gdb/alpha-nat.c
gdb/alpha-osf1-tdep.c
gdb/alpha-tdep.c
gdb/alpha-tdep.h
gdb/alphabsd-nat.c
gdb/alphabsd-tdep.c
gdb/alphabsd-tdep.h
gdb/alphafbsd-tdep.c
gdb/alphanbsd-tdep.c
gdb/annotate.c
gdb/annotate.h
gdb/arc-tdep.c
gdb/arch-utils.c
gdb/arch-utils.h
gdb/arm-linux-nat.c
gdb/arm-linux-tdep.c
gdb/arm-tdep.c
gdb/arm-tdep.h
gdb/armnbsd-nat.c
gdb/armnbsd-tdep.c
gdb/avr-tdep.c
gdb/ax-gdb.c
gdb/ax-gdb.h
gdb/ax-general.c
gdb/ax.h
gdb/bcache.c
gdb/bcache.h
gdb/blockframe.c
gdb/breakpoint.c
gdb/breakpoint.h
gdb/buildsym.c
gdb/buildsym.h
gdb/builtin-regs.c
gdb/builtin-regs.h
gdb/c-exp.y
gdb/c-lang.c
gdb/c-lang.h
gdb/c-typeprint.c
gdb/c-valprint.c
gdb/call-cmds.h
gdb/ch-exp.c
gdb/ch-lang.c
gdb/ch-lang.h
gdb/ch-typeprint.c
gdb/ch-valprint.c
gdb/cli-out.c
gdb/cli-out.h
gdb/cli/cli-cmds.c
gdb/cli/cli-cmds.h
gdb/cli/cli-decode.c
gdb/cli/cli-decode.h
gdb/cli/cli-dump.c
gdb/cli/cli-dump.h
gdb/cli/cli-script.c
gdb/cli/cli-script.h
gdb/cli/cli-setshow.c
gdb/cli/cli-setshow.h
gdb/cli/cli-utils.c
gdb/cli/cli-utils.h
gdb/coff-solib.c
gdb/coff-solib.h
gdb/coffread.c
gdb/command.h
gdb/complaints.c
gdb/complaints.h
gdb/completer.c
gdb/completer.h
gdb/config.in
gdb/config/alpha/alpha-linux.mh
gdb/config/alpha/alpha-linux.mt
gdb/config/alpha/alpha-osf1.mh
gdb/config/alpha/alpha-osf1.mt
gdb/config/alpha/alpha-osf2.mh
gdb/config/alpha/alpha-osf3.mh
gdb/config/alpha/alpha.mt
gdb/config/alpha/fbsd.mh
gdb/config/alpha/fbsd.mt
gdb/config/alpha/nbsd.mh
gdb/config/alpha/nbsd.mt
gdb/config/alpha/nm-fbsd.h
gdb/config/alpha/nm-linux.h
gdb/config/alpha/nm-nbsd.h
gdb/config/alpha/nm-osf.h
gdb/config/alpha/nm-osf2.h
gdb/config/alpha/nm-osf3.h
gdb/config/alpha/tm-alpha.h
gdb/config/alpha/tm-alphalinux.h
gdb/config/alpha/tm-fbsd.h
gdb/config/alpha/tm-nbsd.h
gdb/config/alpha/xm-alphalinux.h
gdb/config/alpha/xm-alphaosf.h
gdb/config/arc/arc.mt
gdb/config/arc/tm-arc.h
gdb/config/arm/embed.mt
gdb/config/arm/linux.mh
gdb/config/arm/linux.mt
gdb/config/arm/nbsd.mt
gdb/config/arm/nbsdaout.mh
gdb/config/arm/nbsdelf.mh
gdb/config/arm/nm-linux.h
gdb/config/arm/nm-nbsd.h
gdb/config/arm/nm-nbsdaout.h
gdb/config/arm/tm-arm.h
gdb/config/arm/tm-embed.h
gdb/config/arm/tm-linux.h
gdb/config/arm/tm-wince.h
gdb/config/arm/wince.mt
gdb/config/arm/xm-linux.h
gdb/config/arm/xm-nbsd.h
gdb/config/avr/avr.mt
gdb/config/cris/cris.mt
gdb/config/cris/tm-cris.h
gdb/config/d10v/d10v.mt
gdb/config/d30v/d30v.mt
gdb/config/d30v/tm-d30v.h
gdb/config/djgpp/README
gdb/config/djgpp/config.sed
gdb/config/djgpp/djcheck.sh
gdb/config/djgpp/djconfig.sh
gdb/config/djgpp/fnchange.lst
gdb/config/fr30/fr30.mt
gdb/config/fr30/tm-fr30.h
gdb/config/frv/frv.mt
gdb/config/frv/tm-frv.h
gdb/config/h8300/h8300.mt
gdb/config/h8300/tm-h8300.h
gdb/config/h8500/h8500.mt
gdb/config/h8500/tm-h8500.h
gdb/config/i386/cygwin.mh
gdb/config/i386/cygwin.mt
gdb/config/i386/embed.mt
gdb/config/i386/fbsd.mh
gdb/config/i386/fbsd.mt
gdb/config/i386/gdbserve.mt
gdb/config/i386/go32.mh
gdb/config/i386/go32.mt
gdb/config/i386/i386aix.mh
gdb/config/i386/i386aix.mt
gdb/config/i386/i386aout.mt
gdb/config/i386/i386bsd.mh
gdb/config/i386/i386bsd.mt
gdb/config/i386/i386dgux.mh
gdb/config/i386/i386gnu.mh
gdb/config/i386/i386gnu.mt
gdb/config/i386/i386lynx.mh
gdb/config/i386/i386lynx.mt
gdb/config/i386/i386m3.mh
gdb/config/i386/i386m3.mt
gdb/config/i386/i386mach.mh
gdb/config/i386/i386mk.mh
gdb/config/i386/i386mk.mt
gdb/config/i386/i386nw.mt
gdb/config/i386/i386os9k.mt
gdb/config/i386/i386sco.mh
gdb/config/i386/i386sco4.mh
gdb/config/i386/i386sco5.mh
gdb/config/i386/i386sco5.mt
gdb/config/i386/i386sol2.mh
gdb/config/i386/i386sol2.mt
gdb/config/i386/i386v.mh
gdb/config/i386/i386v.mt
gdb/config/i386/i386v32.mh
gdb/config/i386/i386v4.mh
gdb/config/i386/i386v4.mt
gdb/config/i386/i386v42mp.mh
gdb/config/i386/i386v42mp.mt
gdb/config/i386/linux.mh
gdb/config/i386/linux.mt
gdb/config/i386/nbsd.mt
gdb/config/i386/nbsdaout.mh
gdb/config/i386/nbsdelf.mh
gdb/config/i386/ncr3000.mh
gdb/config/i386/ncr3000.mt
gdb/config/i386/nm-cygwin.h
gdb/config/i386/nm-fbsd.h
gdb/config/i386/nm-go32.h
gdb/config/i386/nm-i386.h
gdb/config/i386/nm-i386aix.h
gdb/config/i386/nm-i386bsd.h
gdb/config/i386/nm-i386gnu.h
gdb/config/i386/nm-i386lynx.h
gdb/config/i386/nm-i386mach.h
gdb/config/i386/nm-i386sco.h
gdb/config/i386/nm-i386sco4.h
gdb/config/i386/nm-i386sco5.h
gdb/config/i386/nm-i386sol2.h
gdb/config/i386/nm-i386v.h
gdb/config/i386/nm-i386v4.h
gdb/config/i386/nm-i386v42mp.h
gdb/config/i386/nm-linux.h
gdb/config/i386/nm-m3.h
gdb/config/i386/nm-nbsd.h
gdb/config/i386/nm-nbsdaout.h
gdb/config/i386/nm-obsd.h
gdb/config/i386/nm-ptx4.h
gdb/config/i386/nm-symmetry.h
gdb/config/i386/nm-x86-64linux.h
gdb/config/i386/obsd.mh
gdb/config/i386/ptx.mh
gdb/config/i386/ptx.mt
gdb/config/i386/ptx4.mh
gdb/config/i386/ptx4.mt
gdb/config/i386/symmetry.mh
gdb/config/i386/symmetry.mt
gdb/config/i386/tm-cygwin.h
gdb/config/i386/tm-fbsd.h
gdb/config/i386/tm-go32.h
gdb/config/i386/tm-i386.h
gdb/config/i386/tm-i386aix.h
gdb/config/i386/tm-i386bsd.h
gdb/config/i386/tm-i386lynx.h
gdb/config/i386/tm-i386m3.h
gdb/config/i386/tm-i386mk.h
gdb/config/i386/tm-i386os9k.h
gdb/config/i386/tm-i386sol2.h
gdb/config/i386/tm-i386v4.h
gdb/config/i386/tm-i386v42mp.h
gdb/config/i386/tm-linux.h
gdb/config/i386/tm-nbsd.h
gdb/config/i386/tm-ptx.h
gdb/config/i386/tm-ptx4.h
gdb/config/i386/tm-symmetry.h
gdb/config/i386/tm-vxworks.h
gdb/config/i386/tm-x86-64linux.h
gdb/config/i386/vxworks.mt
gdb/config/i386/x86-64linux.mh
gdb/config/i386/x86-64linux.mt
gdb/config/i386/xm-cygwin.h
gdb/config/i386/xm-go32.h
gdb/config/i386/xm-i386.h
gdb/config/i386/xm-i386aix.h
gdb/config/i386/xm-i386bsd.h
gdb/config/i386/xm-i386m3.h
gdb/config/i386/xm-i386mach.h
gdb/config/i386/xm-i386mk.h
gdb/config/i386/xm-i386sco.h
gdb/config/i386/xm-i386v.h
gdb/config/i386/xm-i386v32.h
gdb/config/i386/xm-i386v4.h
gdb/config/i386/xm-nbsd.h
gdb/config/i386/xm-ptx.h
gdb/config/i386/xm-ptx4.h
gdb/config/i386/xm-symmetry.h
gdb/config/i960/mon960.mt
gdb/config/i960/nindy960.mt
gdb/config/i960/tm-i960.h
gdb/config/i960/tm-mon960.h
gdb/config/i960/tm-nindy960.h
gdb/config/i960/tm-vx960.h
gdb/config/i960/vxworks960.mt
gdb/config/ia64/aix.mh
gdb/config/ia64/aix.mt
gdb/config/ia64/ia64.mt
gdb/config/ia64/linux.mh
gdb/config/ia64/linux.mt
gdb/config/ia64/nm-aix.h
gdb/config/ia64/nm-linux.h
gdb/config/ia64/tm-aix.h
gdb/config/ia64/tm-ia64.h
gdb/config/ia64/tm-linux.h
gdb/config/ia64/xm-aix.h
gdb/config/ia64/xm-linux.h
gdb/config/m32r/m32r.mt
gdb/config/m32r/tm-m32r.h
gdb/config/m68hc11/m68hc11.mt
gdb/config/m68k/3b1.mh
gdb/config/m68k/3b1.mt
gdb/config/m68k/apollo68b.mh
gdb/config/m68k/apollo68b.mt
gdb/config/m68k/apollo68v.mh
gdb/config/m68k/cisco.mt
gdb/config/m68k/delta68.mh
gdb/config/m68k/delta68.mt
gdb/config/m68k/dpx2.mh
gdb/config/m68k/dpx2.mt
gdb/config/m68k/es1800.mt
gdb/config/m68k/hp300bsd.mh
gdb/config/m68k/hp300bsd.mt
gdb/config/m68k/hp300hpux.mh
gdb/config/m68k/hp300hpux.mt
gdb/config/m68k/linux.mh
gdb/config/m68k/linux.mt
gdb/config/m68k/m68klynx.mh
gdb/config/m68k/m68klynx.mt
gdb/config/m68k/m68kv4.mh
gdb/config/m68k/m68kv4.mt
gdb/config/m68k/monitor.mt
gdb/config/m68k/nbsdaout.mh
gdb/config/m68k/nbsdaout.mt
gdb/config/m68k/nm-apollo68b.h
gdb/config/m68k/nm-apollo68v.h
gdb/config/m68k/nm-delta68.h
gdb/config/m68k/nm-dpx2.h
gdb/config/m68k/nm-hp300bsd.h
gdb/config/m68k/nm-hp300hpux.h
gdb/config/m68k/nm-linux.h
gdb/config/m68k/nm-m68klynx.h
gdb/config/m68k/nm-nbsd.h
gdb/config/m68k/nm-nbsdaout.h
gdb/config/m68k/nm-sun2.h
gdb/config/m68k/nm-sun3.h
gdb/config/m68k/nm-sysv4.h
gdb/config/m68k/os68k.mt
gdb/config/m68k/st2000.mt
gdb/config/m68k/sun2os3.mh
gdb/config/m68k/sun2os3.mt
gdb/config/m68k/sun2os4.mh
gdb/config/m68k/sun2os4.mt
gdb/config/m68k/sun3os3.mh
gdb/config/m68k/sun3os3.mt
gdb/config/m68k/sun3os4.mh
gdb/config/m68k/sun3os4.mt
gdb/config/m68k/tm-3b1.h
gdb/config/m68k/tm-apollo68b.h
gdb/config/m68k/tm-cisco.h
gdb/config/m68k/tm-delta68.h
gdb/config/m68k/tm-dpx2.h
gdb/config/m68k/tm-es1800.h
gdb/config/m68k/tm-hp300bsd.h
gdb/config/m68k/tm-hp300hpux.h
gdb/config/m68k/tm-linux.h
gdb/config/m68k/tm-m68k.h
gdb/config/m68k/tm-m68klynx.h
gdb/config/m68k/tm-m68kv4.h
gdb/config/m68k/tm-mac.h
gdb/config/m68k/tm-monitor.h
gdb/config/m68k/tm-nbsd.h
gdb/config/m68k/tm-os68k.h
gdb/config/m68k/tm-st2000.h
gdb/config/m68k/tm-sun2.h
gdb/config/m68k/tm-sun2os4.h
gdb/config/m68k/tm-sun3.h
gdb/config/m68k/tm-sun3os4.h
gdb/config/m68k/tm-vx68.h
gdb/config/m68k/vxworks68.mt
gdb/config/m68k/xm-3b1.h
gdb/config/m68k/xm-apollo68b.h
gdb/config/m68k/xm-apollo68v.h
gdb/config/m68k/xm-delta68.h
gdb/config/m68k/xm-dpx2.h
gdb/config/m68k/xm-hp300bsd.h
gdb/config/m68k/xm-hp300hpux.h
gdb/config/m68k/xm-linux.h
gdb/config/m68k/xm-m68k.h
gdb/config/m68k/xm-m68kv4.h
gdb/config/m68k/xm-nbsd.h
gdb/config/m68k/xm-sun2.h
gdb/config/m68k/xm-sun3.h
gdb/config/m68k/xm-sun3os4.h
gdb/config/m88k/delta88.mh
gdb/config/m88k/delta88.mt
gdb/config/m88k/delta88v4.mh
gdb/config/m88k/delta88v4.mt
gdb/config/m88k/m88k.mh
gdb/config/m88k/m88k.mt
gdb/config/m88k/nm-delta88v4.h
gdb/config/m88k/nm-m88k.h
gdb/config/m88k/tm-delta88.h
gdb/config/m88k/tm-delta88v4.h
gdb/config/m88k/tm-m88k.h
gdb/config/m88k/xm-delta88.h
gdb/config/m88k/xm-delta88v4.h
gdb/config/m88k/xm-dgux.h
gdb/config/mcore/mcore.mt
gdb/config/mips/bigmips.mt
gdb/config/mips/bigmips64.mt
gdb/config/mips/decstation.mh
gdb/config/mips/decstation.mt
gdb/config/mips/embed.mt
gdb/config/mips/embed64.mt
gdb/config/mips/embedl.mt
gdb/config/mips/embedl64.mt
gdb/config/mips/irix3.mh
gdb/config/mips/irix3.mt
gdb/config/mips/irix4.mh
gdb/config/mips/irix5.mh
gdb/config/mips/irix5.mt
gdb/config/mips/irix6.mh
gdb/config/mips/irix6.mt
gdb/config/mips/linux.mh
gdb/config/mips/linux.mt
gdb/config/mips/littlemips.mh
gdb/config/mips/littlemips.mt
gdb/config/mips/mipsm3.mh
gdb/config/mips/mipsm3.mt
gdb/config/mips/mipsv4.mh
gdb/config/mips/mipsv4.mt
gdb/config/mips/nbsd.mh
gdb/config/mips/nbsd.mt
gdb/config/mips/news-mips.mh
gdb/config/mips/nm-irix3.h
gdb/config/mips/nm-irix4.h
gdb/config/mips/nm-irix5.h
gdb/config/mips/nm-irix6.h
gdb/config/mips/nm-linux.h
gdb/config/mips/nm-mips.h
gdb/config/mips/nm-nbsd.h
gdb/config/mips/nm-news-mips.h
gdb/config/mips/nm-riscos.h
gdb/config/mips/riscos.mh
gdb/config/mips/tm-bigmips.h
gdb/config/mips/tm-bigmips64.h
gdb/config/mips/tm-embed.h
gdb/config/mips/tm-embed64.h
gdb/config/mips/tm-embedl.h
gdb/config/mips/tm-embedl64.h
gdb/config/mips/tm-irix3.h
gdb/config/mips/tm-irix5.h
gdb/config/mips/tm-irix6.h
gdb/config/mips/tm-linux.h
gdb/config/mips/tm-mips.h
gdb/config/mips/tm-mips64.h
gdb/config/mips/tm-mipsm3.h
gdb/config/mips/tm-mipsv4.h
gdb/config/mips/tm-nbsd.h
gdb/config/mips/tm-tx39.h
gdb/config/mips/tm-tx39l.h
gdb/config/mips/tm-vr4100.h
gdb/config/mips/tm-vr4300.h
gdb/config/mips/tm-vr4300el.h
gdb/config/mips/tm-vr4xxx.h
gdb/config/mips/tm-vr4xxxel.h
gdb/config/mips/tm-vr5000.h
gdb/config/mips/tm-vr5000el.h
gdb/config/mips/tm-vxmips.h
gdb/config/mips/tm-wince.h
gdb/config/mips/tx39.mt
gdb/config/mips/tx39l.mt
gdb/config/mips/vr4100.mt
gdb/config/mips/vr4300.mt
gdb/config/mips/vr4300el.mt
gdb/config/mips/vr4xxx.mt
gdb/config/mips/vr4xxxel.mt
gdb/config/mips/vr5000.mt
gdb/config/mips/vr5000el.mt
gdb/config/mips/vxmips.mt
gdb/config/mips/wince.mt
gdb/config/mips/xm-irix3.h
gdb/config/mips/xm-irix4.h
gdb/config/mips/xm-irix5.h
gdb/config/mips/xm-irix6.h
gdb/config/mips/xm-linux.h
gdb/config/mips/xm-mips.h
gdb/config/mips/xm-mipsm3.h
gdb/config/mips/xm-mipsv4.h
gdb/config/mips/xm-riscos.h
gdb/config/mn10200/mn10200.mt
gdb/config/mn10200/tm-mn10200.h
gdb/config/mn10300/mn10300.mt
gdb/config/nm-gnu.h
gdb/config/nm-linux.h
gdb/config/nm-lynx.h
gdb/config/nm-m3.h
gdb/config/nm-nbsd.h
gdb/config/nm-nbsdaout.h
gdb/config/nm-sysv4.h
gdb/config/none/nm-none.h
gdb/config/none/none.mh
gdb/config/none/none.mt
gdb/config/none/tm-none.h
gdb/config/none/xm-none.h
gdb/config/ns32k/nbsdaout.mh
gdb/config/ns32k/nbsdaout.mt
gdb/config/ns32k/nm-nbsd.h
gdb/config/ns32k/nm-nbsdaout.h
gdb/config/ns32k/tm-nbsd.h
gdb/config/ns32k/tm-ns32k.h
gdb/config/ns32k/xm-nbsd.h
gdb/config/pa/hppa.mt
gdb/config/pa/hppa64.mt
gdb/config/pa/hppabsd.mh
gdb/config/pa/hppabsd.mt
gdb/config/pa/hppahpux.mh
gdb/config/pa/hppahpux.mt
gdb/config/pa/hppaosf.mh
gdb/config/pa/hppaosf.mt
gdb/config/pa/hppapro.mt
gdb/config/pa/hpux1020.mh
gdb/config/pa/hpux1020.mt
gdb/config/pa/hpux11.mh
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sim/testsuite/sim/fr30/or.cgs
sim/testsuite/sim/fr30/orb.cgs
sim/testsuite/sim/fr30/orccr.cgs
sim/testsuite/sim/fr30/orh.cgs
sim/testsuite/sim/fr30/ret.cgs
sim/testsuite/sim/fr30/reti.cgs
sim/testsuite/sim/fr30/st.cgs
sim/testsuite/sim/fr30/stb.cgs
sim/testsuite/sim/fr30/sth.cgs
sim/testsuite/sim/fr30/stilm.cgs
sim/testsuite/sim/fr30/stm0.cgs
sim/testsuite/sim/fr30/stm1.cgs
sim/testsuite/sim/fr30/stres.cgs
sim/testsuite/sim/fr30/sub.cgs
sim/testsuite/sim/fr30/subc.cgs
sim/testsuite/sim/fr30/subn.cgs
sim/testsuite/sim/fr30/testutils.inc
sim/testsuite/sim/fr30/xchb.cgs
sim/testsuite/sim/m32r/add.cgs
sim/testsuite/sim/m32r/add3.cgs
sim/testsuite/sim/m32r/addi.cgs
sim/testsuite/sim/m32r/addv.cgs
sim/testsuite/sim/m32r/addv3.cgs
sim/testsuite/sim/m32r/addx.cgs
sim/testsuite/sim/m32r/allinsn.exp
sim/testsuite/sim/m32r/and.cgs
sim/testsuite/sim/m32r/and3.cgs
sim/testsuite/sim/m32r/bc24.cgs
sim/testsuite/sim/m32r/bc8.cgs
sim/testsuite/sim/m32r/beq.cgs
sim/testsuite/sim/m32r/beqz.cgs
sim/testsuite/sim/m32r/bgez.cgs
sim/testsuite/sim/m32r/bgtz.cgs
sim/testsuite/sim/m32r/bl24.cgs
sim/testsuite/sim/m32r/bl8.cgs
sim/testsuite/sim/m32r/blez.cgs
sim/testsuite/sim/m32r/bltz.cgs
sim/testsuite/sim/m32r/bnc24.cgs
sim/testsuite/sim/m32r/bnc8.cgs
sim/testsuite/sim/m32r/bne.cgs
sim/testsuite/sim/m32r/bnez.cgs
sim/testsuite/sim/m32r/bra24.cgs
sim/testsuite/sim/m32r/bra8.cgs
sim/testsuite/sim/m32r/cmp.cgs
sim/testsuite/sim/m32r/cmpi.cgs
sim/testsuite/sim/m32r/cmpu.cgs
sim/testsuite/sim/m32r/cmpui.cgs
sim/testsuite/sim/m32r/div.cgs
sim/testsuite/sim/m32r/divu.cgs
sim/testsuite/sim/m32r/hello.ms
sim/testsuite/sim/m32r/hw-trap.ms
sim/testsuite/sim/m32r/jl.cgs
sim/testsuite/sim/m32r/jmp.cgs
sim/testsuite/sim/m32r/ld-d.cgs
sim/testsuite/sim/m32r/ld-plus.cgs
sim/testsuite/sim/m32r/ld.cgs
sim/testsuite/sim/m32r/ld24.cgs
sim/testsuite/sim/m32r/ldb-d.cgs
sim/testsuite/sim/m32r/ldb.cgs
sim/testsuite/sim/m32r/ldh-d.cgs
sim/testsuite/sim/m32r/ldh.cgs
sim/testsuite/sim/m32r/ldi16.cgs
sim/testsuite/sim/m32r/ldi8.cgs
sim/testsuite/sim/m32r/ldub-d.cgs
sim/testsuite/sim/m32r/ldub.cgs
sim/testsuite/sim/m32r/lduh-d.cgs
sim/testsuite/sim/m32r/lduh.cgs
sim/testsuite/sim/m32r/lock.cgs
sim/testsuite/sim/m32r/machi.cgs
sim/testsuite/sim/m32r/maclo.cgs
sim/testsuite/sim/m32r/macwhi.cgs
sim/testsuite/sim/m32r/macwlo.cgs
sim/testsuite/sim/m32r/misc.exp
sim/testsuite/sim/m32r/mul.cgs
sim/testsuite/sim/m32r/mulhi.cgs
sim/testsuite/sim/m32r/mullo.cgs
sim/testsuite/sim/m32r/mulwhi.cgs
sim/testsuite/sim/m32r/mulwlo.cgs
sim/testsuite/sim/m32r/mv.cgs
sim/testsuite/sim/m32r/mvfachi.cgs
sim/testsuite/sim/m32r/mvfaclo.cgs
sim/testsuite/sim/m32r/mvfacmi.cgs
sim/testsuite/sim/m32r/mvfc.cgs
sim/testsuite/sim/m32r/mvtachi.cgs
sim/testsuite/sim/m32r/mvtaclo.cgs
sim/testsuite/sim/m32r/mvtc.cgs
sim/testsuite/sim/m32r/neg.cgs
sim/testsuite/sim/m32r/nop.cgs
sim/testsuite/sim/m32r/not.cgs
sim/testsuite/sim/m32r/or.cgs
sim/testsuite/sim/m32r/or3.cgs
sim/testsuite/sim/m32r/rac.cgs
sim/testsuite/sim/m32r/rach.cgs
sim/testsuite/sim/m32r/rem.cgs
sim/testsuite/sim/m32r/remu.cgs
sim/testsuite/sim/m32r/rte.cgs
sim/testsuite/sim/m32r/seth.cgs
sim/testsuite/sim/m32r/sll.cgs
sim/testsuite/sim/m32r/sll3.cgs
sim/testsuite/sim/m32r/slli.cgs
sim/testsuite/sim/m32r/sra.cgs
sim/testsuite/sim/m32r/sra3.cgs
sim/testsuite/sim/m32r/srai.cgs
sim/testsuite/sim/m32r/srl.cgs
sim/testsuite/sim/m32r/srl3.cgs
sim/testsuite/sim/m32r/srli.cgs
sim/testsuite/sim/m32r/st-d.cgs
sim/testsuite/sim/m32r/st-minus.cgs
sim/testsuite/sim/m32r/st-plus.cgs
sim/testsuite/sim/m32r/st.cgs
sim/testsuite/sim/m32r/stb-d.cgs
sim/testsuite/sim/m32r/stb.cgs
sim/testsuite/sim/m32r/sth-d.cgs
sim/testsuite/sim/m32r/sth.cgs
sim/testsuite/sim/m32r/sub.cgs
sim/testsuite/sim/m32r/subv.cgs
sim/testsuite/sim/m32r/subx.cgs
sim/testsuite/sim/m32r/testutils.inc
sim/testsuite/sim/m32r/trap.cgs
sim/testsuite/sim/m32r/unlock.cgs
sim/testsuite/sim/m32r/uread16.ms
sim/testsuite/sim/m32r/uread32.ms
sim/testsuite/sim/m32r/uwrite16.ms
sim/testsuite/sim/m32r/uwrite32.ms
sim/testsuite/sim/m32r/xor.cgs
sim/testsuite/sim/m32r/xor3.cgs
sim/v850/ChangeLog
sim/v850/Makefile.in
sim/v850/acconfig.h
sim/v850/config.in
sim/v850/configure
sim/v850/configure.in
sim/v850/interp.c
sim/v850/sim-main.h
sim/v850/simops.c
sim/v850/simops.h
sim/v850/v850-dc
sim/v850/v850.igen
sim/v850/v850_sim.h
sim/z8k/ChangeLog
sim/z8k/Makefile.in
sim/z8k/acconfig.h
sim/z8k/comped1.c
sim/z8k/comped2.c
sim/z8k/comped3.c
sim/z8k/compedb3.c
sim/z8k/config.in
sim/z8k/configure
sim/z8k/configure.in
sim/z8k/iface.c
sim/z8k/inlines.h
sim/z8k/mem.c
sim/z8k/mem.h
sim/z8k/quick.c
sim/z8k/sim.h
sim/z8k/support.c
sim/z8k/syscall.h
sim/z8k/tconfig.in
sim/z8k/tm.h
sim/z8k/writecode.c
texinfo/texinfo.tex
Diffstat (limited to 'sim/arm/armemu.c')
-rw-r--r-- | sim/arm/armemu.c | 4872 |
1 files changed, 0 insertions, 4872 deletions
diff --git a/sim/arm/armemu.c b/sim/arm/armemu.c deleted file mode 100644 index 44943c4..0000000 --- a/sim/arm/armemu.c +++ /dev/null @@ -1,4872 +0,0 @@ -/* armemu.c -- Main instruction emulation: ARM7 Instruction Emulator. - Copyright (C) 1994 Advanced RISC Machines Ltd. - Modifications to add arch. v4 support by <jsmith@cygnus.com>. - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ - -#include "armdefs.h" -#include "armemu.h" -#include "armos.h" - -static ARMword GetDPRegRHS (ARMul_State *, ARMword); -static ARMword GetDPSRegRHS (ARMul_State *, ARMword); -static void WriteR15 (ARMul_State *, ARMword); -static void WriteSR15 (ARMul_State *, ARMword); -static void WriteR15Branch (ARMul_State *, ARMword); -static ARMword GetLSRegRHS (ARMul_State *, ARMword); -static ARMword GetLS7RHS (ARMul_State *, ARMword); -static unsigned LoadWord (ARMul_State *, ARMword, ARMword); -static unsigned LoadHalfWord (ARMul_State *, ARMword, ARMword, int); -static unsigned LoadByte (ARMul_State *, ARMword, ARMword, int); -static unsigned StoreWord (ARMul_State *, ARMword, ARMword); -static unsigned StoreHalfWord (ARMul_State *, ARMword, ARMword); -static unsigned StoreByte (ARMul_State *, ARMword, ARMword); -static void LoadMult (ARMul_State *, ARMword, ARMword, ARMword); -static void StoreMult (ARMul_State *, ARMword, ARMword, ARMword); -static void LoadSMult (ARMul_State *, ARMword, ARMword, ARMword); -static void StoreSMult (ARMul_State *, ARMword, ARMword, ARMword); -static unsigned Multiply64 (ARMul_State *, ARMword, int, int); -static unsigned MultiplyAdd64 (ARMul_State *, ARMword, int, int); -static void Handle_Load_Double (ARMul_State *, ARMword); -static void Handle_Store_Double (ARMul_State *, ARMword); - -#define LUNSIGNED (0) /* unsigned operation */ -#define LSIGNED (1) /* signed operation */ -#define LDEFAULT (0) /* default : do nothing */ -#define LSCC (1) /* set condition codes on result */ - -#ifdef NEED_UI_LOOP_HOOK -/* How often to run the ui_loop update, when in use. */ -#define UI_LOOP_POLL_INTERVAL 0x32000 - -/* Counter for the ui_loop_hook update. */ -static long ui_loop_hook_counter = UI_LOOP_POLL_INTERVAL; - -/* Actual hook to call to run through gdb's gui event loop. */ -extern int (*ui_loop_hook) (int); -#endif /* NEED_UI_LOOP_HOOK */ - -extern int stop_simulator; - -/* Short-hand macros for LDR/STR. */ - -/* Store post decrement writeback. */ -#define SHDOWNWB() \ - lhs = LHS ; \ - if (StoreHalfWord (state, instr, lhs)) \ - LSBase = lhs - GetLS7RHS (state, instr); - -/* Store post increment writeback. */ -#define SHUPWB() \ - lhs = LHS ; \ - if (StoreHalfWord (state, instr, lhs)) \ - LSBase = lhs + GetLS7RHS (state, instr); - -/* Store pre decrement. */ -#define SHPREDOWN() \ - (void)StoreHalfWord (state, instr, LHS - GetLS7RHS (state, instr)); - -/* Store pre decrement writeback. */ -#define SHPREDOWNWB() \ - temp = LHS - GetLS7RHS (state, instr); \ - if (StoreHalfWord (state, instr, temp)) \ - LSBase = temp; - -/* Store pre increment. */ -#define SHPREUP() \ - (void)StoreHalfWord (state, instr, LHS + GetLS7RHS (state, instr)); - -/* Store pre increment writeback. */ -#define SHPREUPWB() \ - temp = LHS + GetLS7RHS (state, instr); \ - if (StoreHalfWord (state, instr, temp)) \ - LSBase = temp; - -/* Load post decrement writeback. */ -#define LHPOSTDOWN() \ -{ \ - int done = 1; \ - lhs = LHS; \ - temp = lhs - GetLS7RHS (state, instr); \ - \ - switch (BITS (5, 6)) \ - { \ - case 1: /* H */ \ - if (LoadHalfWord (state, instr, lhs, LUNSIGNED)) \ - LSBase = temp; \ - break; \ - case 2: /* SB */ \ - if (LoadByte (state, instr, lhs, LSIGNED)) \ - LSBase = temp; \ - break; \ - case 3: /* SH */ \ - if (LoadHalfWord (state, instr, lhs, LSIGNED)) \ - LSBase = temp; \ - break; \ - case 0: /* SWP handled elsewhere. */ \ - default: \ - done = 0; \ - break; \ - } \ - if (done) \ - break; \ -} - -/* Load post increment writeback. */ -#define LHPOSTUP() \ -{ \ - int done = 1; \ - lhs = LHS; \ - temp = lhs + GetLS7RHS (state, instr); \ - \ - switch (BITS (5, 6)) \ - { \ - case 1: /* H */ \ - if (LoadHalfWord (state, instr, lhs, LUNSIGNED)) \ - LSBase = temp; \ - break; \ - case 2: /* SB */ \ - if (LoadByte (state, instr, lhs, LSIGNED)) \ - LSBase = temp; \ - break; \ - case 3: /* SH */ \ - if (LoadHalfWord (state, instr, lhs, LSIGNED)) \ - LSBase = temp; \ - break; \ - case 0: /* SWP handled elsewhere. */ \ - default: \ - done = 0; \ - break; \ - } \ - if (done) \ - break; \ -} - -/* Load pre decrement. */ -#define LHPREDOWN() \ -{ \ - int done = 1; \ - \ - temp = LHS - GetLS7RHS (state, instr); \ - switch (BITS (5, 6)) \ - { \ - case 1: /* H */ \ - (void) LoadHalfWord (state, instr, temp, LUNSIGNED); \ - break; \ - case 2: /* SB */ \ - (void) LoadByte (state, instr, temp, LSIGNED); \ - break; \ - case 3: /* SH */ \ - (void) LoadHalfWord (state, instr, temp, LSIGNED); \ - break; \ - case 0: \ - /* SWP handled elsewhere. */ \ - default: \ - done = 0; \ - break; \ - } \ - if (done) \ - break; \ -} - -/* Load pre decrement writeback. */ -#define LHPREDOWNWB() \ -{ \ - int done = 1; \ - \ - temp = LHS - GetLS7RHS (state, instr); \ - switch (BITS (5, 6)) \ - { \ - case 1: /* H */ \ - if (LoadHalfWord (state, instr, temp, LUNSIGNED)) \ - LSBase = temp; \ - break; \ - case 2: /* SB */ \ - if (LoadByte (state, instr, temp, LSIGNED)) \ - LSBase = temp; \ - break; \ - case 3: /* SH */ \ - if (LoadHalfWord (state, instr, temp, LSIGNED)) \ - LSBase = temp; \ - break; \ - case 0: \ - /* SWP handled elsewhere. */ \ - default: \ - done = 0; \ - break; \ - } \ - if (done) \ - break; \ -} - -/* Load pre increment. */ -#define LHPREUP() \ -{ \ - int done = 1; \ - \ - temp = LHS + GetLS7RHS (state, instr); \ - switch (BITS (5, 6)) \ - { \ - case 1: /* H */ \ - (void) LoadHalfWord (state, instr, temp, LUNSIGNED); \ - break; \ - case 2: /* SB */ \ - (void) LoadByte (state, instr, temp, LSIGNED); \ - break; \ - case 3: /* SH */ \ - (void) LoadHalfWord (state, instr, temp, LSIGNED); \ - break; \ - case 0: \ - /* SWP handled elsewhere. */ \ - default: \ - done = 0; \ - break; \ - } \ - if (done) \ - break; \ -} - -/* Load pre increment writeback. */ -#define LHPREUPWB() \ -{ \ - int done = 1; \ - \ - temp = LHS + GetLS7RHS (state, instr); \ - switch (BITS (5, 6)) \ - { \ - case 1: /* H */ \ - if (LoadHalfWord (state, instr, temp, LUNSIGNED)) \ - LSBase = temp; \ - break; \ - case 2: /* SB */ \ - if (LoadByte (state, instr, temp, LSIGNED)) \ - LSBase = temp; \ - break; \ - case 3: /* SH */ \ - if (LoadHalfWord (state, instr, temp, LSIGNED)) \ - LSBase = temp; \ - break; \ - case 0: \ - /* SWP handled elsewhere. */ \ - default: \ - done = 0; \ - break; \ - } \ - if (done) \ - break; \ -} - -/* EMULATION of ARM6. */ - -/* The PC pipeline value depends on whether ARM - or Thumb instructions are being executed. */ -ARMword isize; - -ARMword -#ifdef MODE32 -ARMul_Emulate32 (ARMul_State * state) -#else -ARMul_Emulate26 (ARMul_State * state) -#endif -{ - ARMword instr; /* The current instruction. */ - ARMword dest = 0; /* Almost the DestBus. */ - ARMword temp; /* Ubiquitous third hand. */ - ARMword pc = 0; /* The address of the current instruction. */ - ARMword lhs; /* Almost the ABus and BBus. */ - ARMword rhs; - ARMword decoded = 0; /* Instruction pipeline. */ - ARMword loaded = 0; - - /* Execute the next instruction. */ - - if (state->NextInstr < PRIMEPIPE) - { - decoded = state->decoded; - loaded = state->loaded; - pc = state->pc; - } - - do - { - /* Just keep going. */ - isize = INSN_SIZE; - - switch (state->NextInstr) - { - case SEQ: - /* Advance the pipeline, and an S cycle. */ - state->Reg[15] += isize; - pc += isize; - instr = decoded; - decoded = loaded; - loaded = ARMul_LoadInstrS (state, pc + (isize * 2), isize); - break; - - case NONSEQ: - /* Advance the pipeline, and an N cycle. */ - state->Reg[15] += isize; - pc += isize; - instr = decoded; - decoded = loaded; - loaded = ARMul_LoadInstrN (state, pc + (isize * 2), isize); - NORMALCYCLE; - break; - - case PCINCEDSEQ: - /* Program counter advanced, and an S cycle. */ - pc += isize; - instr = decoded; - decoded = loaded; - loaded = ARMul_LoadInstrS (state, pc + (isize * 2), isize); - NORMALCYCLE; - break; - - case PCINCEDNONSEQ: - /* Program counter advanced, and an N cycle. */ - pc += isize; - instr = decoded; - decoded = loaded; - loaded = ARMul_LoadInstrN (state, pc + (isize * 2), isize); - NORMALCYCLE; - break; - - case RESUME: - /* The program counter has been changed. */ - pc = state->Reg[15]; -#ifndef MODE32 - pc = pc & R15PCBITS; -#endif - state->Reg[15] = pc + (isize * 2); - state->Aborted = 0; - instr = ARMul_ReLoadInstr (state, pc, isize); - decoded = ARMul_ReLoadInstr (state, pc + isize, isize); - loaded = ARMul_ReLoadInstr (state, pc + isize * 2, isize); - NORMALCYCLE; - break; - - default: - /* The program counter has been changed. */ - pc = state->Reg[15]; -#ifndef MODE32 - pc = pc & R15PCBITS; -#endif - state->Reg[15] = pc + (isize * 2); - state->Aborted = 0; - instr = ARMul_LoadInstrN (state, pc, isize); - decoded = ARMul_LoadInstrS (state, pc + (isize), isize); - loaded = ARMul_LoadInstrS (state, pc + (isize * 2), isize); - NORMALCYCLE; - break; - } - - if (state->EventSet) - ARMul_EnvokeEvent (state); -#if 0 - /* Enable this for a helpful bit of debugging when tracing is needed. */ - fprintf (stderr, "pc: %x, instr: %x\n", pc & ~1, instr); - if (instr == 0) - abort (); -#endif - - if (state->Exception) - { - /* Any exceptions ? */ - if (state->NresetSig == LOW) - { - ARMul_Abort (state, ARMul_ResetV); - break; - } - else if (!state->NfiqSig && !FFLAG) - { - ARMul_Abort (state, ARMul_FIQV); - break; - } - else if (!state->NirqSig && !IFLAG) - { - ARMul_Abort (state, ARMul_IRQV); - break; - } - } - - if (state->CallDebug > 0) - { - instr = ARMul_Debug (state, pc, instr); - if (state->Emulate < ONCE) - { - state->NextInstr = RESUME; - break; - } - if (state->Debug) - { - fprintf (stderr, "sim: At %08lx Instr %08lx Mode %02lx\n", pc, instr, - state->Mode); - (void) fgetc (stdin); - } - } - else if (state->Emulate < ONCE) - { - state->NextInstr = RESUME; - break; - } - - state->NumInstrs++; - -#ifdef MODET - /* Provide Thumb instruction decoding. If the processor is in Thumb - mode, then we can simply decode the Thumb instruction, and map it - to the corresponding ARM instruction (by directly loading the - instr variable, and letting the normal ARM simulator - execute). There are some caveats to ensure that the correct - pipelined PC value is used when executing Thumb code, and also for - dealing with the BL instruction. */ - if (TFLAG) - { - ARMword new; - - /* Check if in Thumb mode. */ - switch (ARMul_ThumbDecode (state, pc, instr, &new)) - { - case t_undefined: - /* This is a Thumb instruction. */ - ARMul_UndefInstr (state, instr); - goto donext; - - case t_branch: - /* Already processed. */ - goto donext; - - case t_decoded: - /* ARM instruction available. */ - instr = new; - /* So continue instruction decoding. */ - break; - default: - break; - } - } -#endif - - /* Check the condition codes. */ - if ((temp = TOPBITS (28)) == AL) - /* Vile deed in the need for speed. */ - goto mainswitch; - - /* Check the condition code. */ - switch ((int) TOPBITS (28)) - { - case AL: - temp = TRUE; - break; - case NV: - if (state->is_v5) - { - if (BITS (25, 27) == 5) /* BLX(1) */ - { - ARMword dest; - - state->Reg[14] = pc + 4; - - /* Force entry into Thumb mode. */ - dest = pc + 8 + 1; - if (BIT (23)) - dest += (NEGBRANCH + (BIT (24) << 1)); - else - dest += POSBRANCH + (BIT (24) << 1); - - WriteR15Branch (state, dest); - goto donext; - } - else if ((instr & 0xFC70F000) == 0xF450F000) - /* The PLD instruction. Ignored. */ - goto donext; - else - /* UNDEFINED in v5, UNPREDICTABLE in v3, v4, non executed in v1, v2. */ - ARMul_UndefInstr (state, instr); - } - temp = FALSE; - break; - case EQ: - temp = ZFLAG; - break; - case NE: - temp = !ZFLAG; - break; - case VS: - temp = VFLAG; - break; - case VC: - temp = !VFLAG; - break; - case MI: - temp = NFLAG; - break; - case PL: - temp = !NFLAG; - break; - case CS: - temp = CFLAG; - break; - case CC: - temp = !CFLAG; - break; - case HI: - temp = (CFLAG && !ZFLAG); - break; - case LS: - temp = (!CFLAG || ZFLAG); - break; - case GE: - temp = ((!NFLAG && !VFLAG) || (NFLAG && VFLAG)); - break; - case LT: - temp = ((NFLAG && !VFLAG) || (!NFLAG && VFLAG)); - break; - case GT: - temp = ((!NFLAG && !VFLAG && !ZFLAG) || (NFLAG && VFLAG && !ZFLAG)); - break; - case LE: - temp = ((NFLAG && !VFLAG) || (!NFLAG && VFLAG)) || ZFLAG; - break; - } /* cc check */ - - /* Handle the Clock counter here. */ - if (state->is_XScale) - { - ARMword cp14r0; - int ok; - - ok = state->CPRead[14] (state, 0, & cp14r0); - - if (ok && (cp14r0 & ARMul_CP14_R0_ENABLE)) - { - unsigned long newcycles, nowtime = ARMul_Time (state); - - newcycles = nowtime - state->LastTime; - state->LastTime = nowtime; - - if (cp14r0 & ARMul_CP14_R0_CCD) - { - if (state->CP14R0_CCD == -1) - state->CP14R0_CCD = newcycles; - else - state->CP14R0_CCD += newcycles; - - if (state->CP14R0_CCD >= 64) - { - newcycles = 0; - - while (state->CP14R0_CCD >= 64) - state->CP14R0_CCD -= 64, newcycles++; - - goto check_PMUintr; - } - } - else - { - ARMword cp14r1; - int do_int = 0; - - state->CP14R0_CCD = -1; -check_PMUintr: - cp14r0 |= ARMul_CP14_R0_FLAG2; - (void) state->CPWrite[14] (state, 0, cp14r0); - - ok = state->CPRead[14] (state, 1, & cp14r1); - - /* Coded like this for portability. */ - while (ok && newcycles) - { - if (cp14r1 == 0xffffffff) - { - cp14r1 = 0; - do_int = 1; - } - else - cp14r1 ++; - - newcycles --; - } - - (void) state->CPWrite[14] (state, 1, cp14r1); - - if (do_int && (cp14r0 & ARMul_CP14_R0_INTEN2)) - { - ARMword temp; - - if (state->CPRead[13] (state, 8, & temp) - && (temp & ARMul_CP13_R8_PMUS)) - ARMul_Abort (state, ARMul_FIQV); - else - ARMul_Abort (state, ARMul_IRQV); - } - } - } - } - - /* Handle hardware instructions breakpoints here. */ - if (state->is_XScale) - { - if ( (pc | 3) == (read_cp15_reg (14, 0, 8) | 2) - || (pc | 3) == (read_cp15_reg (14, 0, 9) | 2)) - { - if (XScale_debug_moe (state, ARMul_CP14_R10_MOE_IB)) - ARMul_OSHandleSWI (state, SWI_Breakpoint); - } - } - - /* Actual execution of instructions begins here. */ - /* If the condition codes don't match, stop here. */ - if (temp) - { - mainswitch: - - if (state->is_XScale) - { - if (BIT (20) == 0 && BITS (25, 27) == 0) - { - if (BITS (4, 7) == 0xD) - { - /* XScale Load Consecutive insn. */ - ARMword temp = GetLS7RHS (state, instr); - ARMword temp2 = BIT (23) ? LHS + temp : LHS - temp; - ARMword addr = BIT (24) ? temp2 : LHS; - - if (BIT (12)) - ARMul_UndefInstr (state, instr); - else if (addr & 7) - /* Alignment violation. */ - ARMul_Abort (state, ARMul_DataAbortV); - else - { - int wb = BIT (21) || (! BIT (24)); - - state->Reg[BITS (12, 15)] = - ARMul_LoadWordN (state, addr); - state->Reg[BITS (12, 15) + 1] = - ARMul_LoadWordN (state, addr + 4); - if (wb) - LSBase = temp2; - } - - goto donext; - } - else if (BITS (4, 7) == 0xF) - { - /* XScale Store Consecutive insn. */ - ARMword temp = GetLS7RHS (state, instr); - ARMword temp2 = BIT (23) ? LHS + temp : LHS - temp; - ARMword addr = BIT (24) ? temp2 : LHS; - - if (BIT (12)) - ARMul_UndefInstr (state, instr); - else if (addr & 7) - /* Alignment violation. */ - ARMul_Abort (state, ARMul_DataAbortV); - else - { - ARMul_StoreWordN (state, addr, - state->Reg[BITS (12, 15)]); - ARMul_StoreWordN (state, addr + 4, - state->Reg[BITS (12, 15) + 1]); - - if (BIT (21)|| ! BIT (24)) - LSBase = temp2; - } - - goto donext; - } - } - } - - switch ((int) BITS (20, 27)) - { - /* Data Processing Register RHS Instructions. */ - - case 0x00: /* AND reg and MUL */ -#ifdef MODET - if (BITS (4, 11) == 0xB) - { - /* STRH register offset, no write-back, down, post indexed. */ - SHDOWNWB (); - break; - } - if (BITS (4, 7) == 0xD) - { - Handle_Load_Double (state, instr); - break; - } - if (BITS (4, 7) == 0xF) - { - Handle_Store_Double (state, instr); - break; - } -#endif - if (BITS (4, 7) == 9) - { - /* MUL */ - rhs = state->Reg[MULRHSReg]; - if (MULLHSReg == MULDESTReg) - { - UNDEF_MULDestEQOp1; - state->Reg[MULDESTReg] = 0; - } - else if (MULDESTReg != 15) - state->Reg[MULDESTReg] = state->Reg[MULLHSReg] * rhs; - else - UNDEF_MULPCDest; - - for (dest = 0, temp = 0; dest < 32; dest ++) - if (rhs & (1L << dest)) - temp = dest; - - /* Mult takes this many/2 I cycles. */ - ARMul_Icycles (state, ARMul_MultTable[temp], 0L); - } - else - { - /* AND reg. */ - rhs = DPRegRHS; - dest = LHS & rhs; - WRITEDEST (dest); - } - break; - - case 0x01: /* ANDS reg and MULS */ -#ifdef MODET - if ((BITS (4, 11) & 0xF9) == 0x9) - /* LDR register offset, no write-back, down, post indexed. */ - LHPOSTDOWN (); - /* Fall through to rest of decoding. */ -#endif - if (BITS (4, 7) == 9) - { - /* MULS */ - rhs = state->Reg[MULRHSReg]; - - if (MULLHSReg == MULDESTReg) - { - UNDEF_MULDestEQOp1; - state->Reg[MULDESTReg] = 0; - CLEARN; - SETZ; - } - else if (MULDESTReg != 15) - { - dest = state->Reg[MULLHSReg] * rhs; - ARMul_NegZero (state, dest); - state->Reg[MULDESTReg] = dest; - } - else - UNDEF_MULPCDest; - - for (dest = 0, temp = 0; dest < 32; dest ++) - if (rhs & (1L << dest)) - temp = dest; - - /* Mult takes this many/2 I cycles. */ - ARMul_Icycles (state, ARMul_MultTable[temp], 0L); - } - else - { - /* ANDS reg. */ - rhs = DPSRegRHS; - dest = LHS & rhs; - WRITESDEST (dest); - } - break; - - case 0x02: /* EOR reg and MLA */ -#ifdef MODET - if (BITS (4, 11) == 0xB) - { - /* STRH register offset, write-back, down, post indexed. */ - SHDOWNWB (); - break; - } -#endif - if (BITS (4, 7) == 9) - { /* MLA */ - rhs = state->Reg[MULRHSReg]; - if (MULLHSReg == MULDESTReg) - { - UNDEF_MULDestEQOp1; - state->Reg[MULDESTReg] = state->Reg[MULACCReg]; - } - else if (MULDESTReg != 15) - state->Reg[MULDESTReg] = - state->Reg[MULLHSReg] * rhs + state->Reg[MULACCReg]; - else - UNDEF_MULPCDest; - - for (dest = 0, temp = 0; dest < 32; dest ++) - if (rhs & (1L << dest)) - temp = dest; - - /* Mult takes this many/2 I cycles. */ - ARMul_Icycles (state, ARMul_MultTable[temp], 0L); - } - else - { - rhs = DPRegRHS; - dest = LHS ^ rhs; - WRITEDEST (dest); - } - break; - - case 0x03: /* EORS reg and MLAS */ -#ifdef MODET - if ((BITS (4, 11) & 0xF9) == 0x9) - /* LDR register offset, write-back, down, post-indexed. */ - LHPOSTDOWN (); - /* Fall through to rest of the decoding. */ -#endif - if (BITS (4, 7) == 9) - { - /* MLAS */ - rhs = state->Reg[MULRHSReg]; - - if (MULLHSReg == MULDESTReg) - { - UNDEF_MULDestEQOp1; - dest = state->Reg[MULACCReg]; - ARMul_NegZero (state, dest); - state->Reg[MULDESTReg] = dest; - } - else if (MULDESTReg != 15) - { - dest = - state->Reg[MULLHSReg] * rhs + state->Reg[MULACCReg]; - ARMul_NegZero (state, dest); - state->Reg[MULDESTReg] = dest; - } - else - UNDEF_MULPCDest; - - for (dest = 0, temp = 0; dest < 32; dest ++) - if (rhs & (1L << dest)) - temp = dest; - - /* Mult takes this many/2 I cycles. */ - ARMul_Icycles (state, ARMul_MultTable[temp], 0L); - } - else - { - /* EORS Reg. */ - rhs = DPSRegRHS; - dest = LHS ^ rhs; - WRITESDEST (dest); - } - break; - - case 0x04: /* SUB reg */ -#ifdef MODET - if (BITS (4, 7) == 0xB) - { - /* STRH immediate offset, no write-back, down, post indexed. */ - SHDOWNWB (); - break; - } - if (BITS (4, 7) == 0xD) - { - Handle_Load_Double (state, instr); - break; - } - if (BITS (4, 7) == 0xF) - { - Handle_Store_Double (state, instr); - break; - } -#endif - rhs = DPRegRHS; - dest = LHS - rhs; - WRITEDEST (dest); - break; - - case 0x05: /* SUBS reg */ -#ifdef MODET - if ((BITS (4, 7) & 0x9) == 0x9) - /* LDR immediate offset, no write-back, down, post indexed. */ - LHPOSTDOWN (); - /* Fall through to the rest of the instruction decoding. */ -#endif - lhs = LHS; - rhs = DPRegRHS; - dest = lhs - rhs; - - if ((lhs >= rhs) || ((rhs | lhs) >> 31)) - { - ARMul_SubCarry (state, lhs, rhs, dest); - ARMul_SubOverflow (state, lhs, rhs, dest); - } - else - { - CLEARC; - CLEARV; - } - WRITESDEST (dest); - break; - - case 0x06: /* RSB reg */ -#ifdef MODET - if (BITS (4, 7) == 0xB) - { - /* STRH immediate offset, write-back, down, post indexed. */ - SHDOWNWB (); - break; - } -#endif - rhs = DPRegRHS; - dest = rhs - LHS; - WRITEDEST (dest); - break; - - case 0x07: /* RSBS reg */ -#ifdef MODET - if ((BITS (4, 7) & 0x9) == 0x9) - /* LDR immediate offset, write-back, down, post indexed. */ - LHPOSTDOWN (); - /* Fall through to remainder of instruction decoding. */ -#endif - lhs = LHS; - rhs = DPRegRHS; - dest = rhs - lhs; - - if ((rhs >= lhs) || ((rhs | lhs) >> 31)) - { - ARMul_SubCarry (state, rhs, lhs, dest); - ARMul_SubOverflow (state, rhs, lhs, dest); - } - else - { - CLEARC; - CLEARV; - } - WRITESDEST (dest); - break; - - case 0x08: /* ADD reg */ -#ifdef MODET - if (BITS (4, 11) == 0xB) - { - /* STRH register offset, no write-back, up, post indexed. */ - SHUPWB (); - break; - } - if (BITS (4, 7) == 0xD) - { - Handle_Load_Double (state, instr); - break; - } - if (BITS (4, 7) == 0xF) - { - Handle_Store_Double (state, instr); - break; - } -#endif -#ifdef MODET - if (BITS (4, 7) == 0x9) - { - /* MULL */ - /* 32x32 = 64 */ - ARMul_Icycles (state, - Multiply64 (state, instr, LUNSIGNED, - LDEFAULT), 0L); - break; - } -#endif - rhs = DPRegRHS; - dest = LHS + rhs; - WRITEDEST (dest); - break; - - case 0x09: /* ADDS reg */ -#ifdef MODET - if ((BITS (4, 11) & 0xF9) == 0x9) - /* LDR register offset, no write-back, up, post indexed. */ - LHPOSTUP (); - /* Fall through to remaining instruction decoding. */ -#endif -#ifdef MODET - if (BITS (4, 7) == 0x9) - { - /* MULL */ - /* 32x32=64 */ - ARMul_Icycles (state, - Multiply64 (state, instr, LUNSIGNED, LSCC), - 0L); - break; - } -#endif - lhs = LHS; - rhs = DPRegRHS; - dest = lhs + rhs; - ASSIGNZ (dest == 0); - if ((lhs | rhs) >> 30) - { - /* Possible C,V,N to set. */ - ASSIGNN (NEG (dest)); - ARMul_AddCarry (state, lhs, rhs, dest); - ARMul_AddOverflow (state, lhs, rhs, dest); - } - else - { - CLEARN; - CLEARC; - CLEARV; - } - WRITESDEST (dest); - break; - - case 0x0a: /* ADC reg */ -#ifdef MODET - if (BITS (4, 11) == 0xB) - { - /* STRH register offset, write-back, up, post-indexed. */ - SHUPWB (); - break; - } - if (BITS (4, 7) == 0x9) - { - /* MULL */ - /* 32x32=64 */ - ARMul_Icycles (state, - MultiplyAdd64 (state, instr, LUNSIGNED, - LDEFAULT), 0L); - break; - } -#endif - rhs = DPRegRHS; - dest = LHS + rhs + CFLAG; - WRITEDEST (dest); - break; - - case 0x0b: /* ADCS reg */ -#ifdef MODET - if ((BITS (4, 11) & 0xF9) == 0x9) - /* LDR register offset, write-back, up, post indexed. */ - LHPOSTUP (); - /* Fall through to remaining instruction decoding. */ - if (BITS (4, 7) == 0x9) - { - /* MULL */ - /* 32x32=64 */ - ARMul_Icycles (state, - MultiplyAdd64 (state, instr, LUNSIGNED, - LSCC), 0L); - break; - } -#endif - lhs = LHS; - rhs = DPRegRHS; - dest = lhs + rhs + CFLAG; - ASSIGNZ (dest == 0); - if ((lhs | rhs) >> 30) - { - /* Possible C,V,N to set. */ - ASSIGNN (NEG (dest)); - ARMul_AddCarry (state, lhs, rhs, dest); - ARMul_AddOverflow (state, lhs, rhs, dest); - } - else - { - CLEARN; - CLEARC; - CLEARV; - } - WRITESDEST (dest); - break; - - case 0x0c: /* SBC reg */ -#ifdef MODET - if (BITS (4, 7) == 0xB) - { - /* STRH immediate offset, no write-back, up post indexed. */ - SHUPWB (); - break; - } - if (BITS (4, 7) == 0xD) - { - Handle_Load_Double (state, instr); - break; - } - if (BITS (4, 7) == 0xF) - { - Handle_Store_Double (state, instr); - break; - } - if (BITS (4, 7) == 0x9) - { - /* MULL */ - /* 32x32=64 */ - ARMul_Icycles (state, - Multiply64 (state, instr, LSIGNED, LDEFAULT), - 0L); - break; - } -#endif - rhs = DPRegRHS; - dest = LHS - rhs - !CFLAG; - WRITEDEST (dest); - break; - - case 0x0d: /* SBCS reg */ -#ifdef MODET - if ((BITS (4, 7) & 0x9) == 0x9) - /* LDR immediate offset, no write-back, up, post indexed. */ - LHPOSTUP (); - - if (BITS (4, 7) == 0x9) - { - /* MULL */ - /* 32x32=64 */ - ARMul_Icycles (state, - Multiply64 (state, instr, LSIGNED, LSCC), - 0L); - break; - } -#endif - lhs = LHS; - rhs = DPRegRHS; - dest = lhs - rhs - !CFLAG; - if ((lhs >= rhs) || ((rhs | lhs) >> 31)) - { - ARMul_SubCarry (state, lhs, rhs, dest); - ARMul_SubOverflow (state, lhs, rhs, dest); - } - else - { - CLEARC; - CLEARV; - } - WRITESDEST (dest); - break; - - case 0x0e: /* RSC reg */ -#ifdef MODET - if (BITS (4, 7) == 0xB) - { - /* STRH immediate offset, write-back, up, post indexed. */ - SHUPWB (); - break; - } - - if (BITS (4, 7) == 0x9) - { - /* MULL */ - /* 32x32=64 */ - ARMul_Icycles (state, - MultiplyAdd64 (state, instr, LSIGNED, - LDEFAULT), 0L); - break; - } -#endif - rhs = DPRegRHS; - dest = rhs - LHS - !CFLAG; - WRITEDEST (dest); - break; - - case 0x0f: /* RSCS reg */ -#ifdef MODET - if ((BITS (4, 7) & 0x9) == 0x9) - /* LDR immediate offset, write-back, up, post indexed. */ - LHPOSTUP (); - /* Fall through to remaining instruction decoding. */ - - if (BITS (4, 7) == 0x9) - { - /* MULL */ - /* 32x32=64 */ - ARMul_Icycles (state, - MultiplyAdd64 (state, instr, LSIGNED, LSCC), - 0L); - break; - } -#endif - lhs = LHS; - rhs = DPRegRHS; - dest = rhs - lhs - !CFLAG; - - if ((rhs >= lhs) || ((rhs | lhs) >> 31)) - { - ARMul_SubCarry (state, rhs, lhs, dest); - ARMul_SubOverflow (state, rhs, lhs, dest); - } - else - { - CLEARC; - CLEARV; - } - WRITESDEST (dest); - break; - - case 0x10: /* TST reg and MRS CPSR and SWP word. */ - if (state->is_v5e) - { - if (BIT (4) == 0 && BIT (7) == 1) - { - /* ElSegundo SMLAxy insn. */ - ARMword op1 = state->Reg[BITS (0, 3)]; - ARMword op2 = state->Reg[BITS (8, 11)]; - ARMword Rn = state->Reg[BITS (12, 15)]; - - if (BIT (5)) - op1 >>= 16; - if (BIT (6)) - op2 >>= 16; - op1 &= 0xFFFF; - op2 &= 0xFFFF; - if (op1 & 0x8000) - op1 -= 65536; - if (op2 & 0x8000) - op2 -= 65536; - op1 *= op2; - - if (AddOverflow (op1, Rn, op1 + Rn)) - SETS; - state->Reg[BITS (16, 19)] = op1 + Rn; - break; - } - - if (BITS (4, 11) == 5) - { - /* ElSegundo QADD insn. */ - ARMword op1 = state->Reg[BITS (0, 3)]; - ARMword op2 = state->Reg[BITS (16, 19)]; - ARMword result = op1 + op2; - if (AddOverflow (op1, op2, result)) - { - result = POS (result) ? 0x80000000 : 0x7fffffff; - SETS; - } - state->Reg[BITS (12, 15)] = result; - break; - } - } -#ifdef MODET - if (BITS (4, 11) == 0xB) - { - /* STRH register offset, no write-back, down, pre indexed. */ - SHPREDOWN (); - break; - } - if (BITS (4, 7) == 0xD) - { - Handle_Load_Double (state, instr); - break; - } - if (BITS (4, 7) == 0xF) - { - Handle_Store_Double (state, instr); - break; - } -#endif - if (BITS (4, 11) == 9) - { - /* SWP */ - UNDEF_SWPPC; - temp = LHS; - BUSUSEDINCPCS; -#ifndef MODE32 - if (VECTORACCESS (temp) || ADDREXCEPT (temp)) - { - INTERNALABORT (temp); - (void) ARMul_LoadWordN (state, temp); - (void) ARMul_LoadWordN (state, temp); - } - else -#endif - dest = ARMul_SwapWord (state, temp, state->Reg[RHSReg]); - if (temp & 3) - DEST = ARMul_Align (state, temp, dest); - else - DEST = dest; - if (state->abortSig || state->Aborted) - TAKEABORT; - } - else if ((BITS (0, 11) == 0) && (LHSReg == 15)) - { /* MRS CPSR */ - UNDEF_MRSPC; - DEST = ECC | EINT | EMODE; - } - else - { - UNDEF_Test; - } - break; - - case 0x11: /* TSTP reg */ -#ifdef MODET - if ((BITS (4, 11) & 0xF9) == 0x9) - /* LDR register offset, no write-back, down, pre indexed. */ - LHPREDOWN (); - /* Continue with remaining instruction decode. */ -#endif - if (DESTReg == 15) - { - /* TSTP reg */ -#ifdef MODE32 - state->Cpsr = GETSPSR (state->Bank); - ARMul_CPSRAltered (state); -#else - rhs = DPRegRHS; - temp = LHS & rhs; - SETR15PSR (temp); -#endif - } - else - { - /* TST reg */ - rhs = DPSRegRHS; - dest = LHS & rhs; - ARMul_NegZero (state, dest); - } - break; - - case 0x12: /* TEQ reg and MSR reg to CPSR (ARM6). */ - if (state->is_v5) - { - if (BITS (4, 7) == 3) - { - /* BLX(2) */ - ARMword temp; - - if (TFLAG) - temp = (pc + 2) | 1; - else - temp = pc + 4; - - WriteR15Branch (state, state->Reg[RHSReg]); - state->Reg[14] = temp; - break; - } - } - - if (state->is_v5e) - { - if (BIT (4) == 0 && BIT (7) == 1 - && (BIT (5) == 0 || BITS (12, 15) == 0)) - { - /* ElSegundo SMLAWy/SMULWy insn. */ - unsigned long long op1 = state->Reg[BITS (0, 3)]; - unsigned long long op2 = state->Reg[BITS (8, 11)]; - unsigned long long result; - - if (BIT (6)) - op2 >>= 16; - if (op1 & 0x80000000) - op1 -= 1ULL << 32; - op2 &= 0xFFFF; - if (op2 & 0x8000) - op2 -= 65536; - result = (op1 * op2) >> 16; - - if (BIT (5) == 0) - { - ARMword Rn = state->Reg[BITS (12, 15)]; - - if (AddOverflow (result, Rn, result + Rn)) - SETS; - result += Rn; - } - state->Reg[BITS (16, 19)] = result; - break; - } - - if (BITS (4, 11) == 5) - { - /* ElSegundo QSUB insn. */ - ARMword op1 = state->Reg[BITS (0, 3)]; - ARMword op2 = state->Reg[BITS (16, 19)]; - ARMword result = op1 - op2; - - if (SubOverflow (op1, op2, result)) - { - result = POS (result) ? 0x80000000 : 0x7fffffff; - SETS; - } - - state->Reg[BITS (12, 15)] = result; - break; - } - } -#ifdef MODET - if (BITS (4, 11) == 0xB) - { - /* STRH register offset, write-back, down, pre indexed. */ - SHPREDOWNWB (); - break; - } - if (BITS (4, 27) == 0x12FFF1) - { - /* BX */ - WriteR15Branch (state, state->Reg[RHSReg]); - break; - } - if (BITS (4, 7) == 0xD) - { - Handle_Load_Double (state, instr); - break; - } - if (BITS (4, 7) == 0xF) - { - Handle_Store_Double (state, instr); - break; - } -#endif - if (state->is_v5) - { - if (BITS (4, 7) == 0x7) - { - ARMword value; - extern int SWI_vector_installed; - - /* Hardware is allowed to optionally override this - instruction and treat it as a breakpoint. Since - this is a simulator not hardware, we take the position - that if a SWI vector was not installed, then an Abort - vector was probably not installed either, and so - normally this instruction would be ignored, even if an - Abort is generated. This is a bad thing, since GDB - uses this instruction for its breakpoints (at least in - Thumb mode it does). So intercept the instruction here - and generate a breakpoint SWI instead. */ - if (! SWI_vector_installed) - ARMul_OSHandleSWI (state, SWI_Breakpoint); - else - { - /* BKPT - normally this will cause an abort, but on the - XScale we must check the DCSR. */ - XScale_set_fsr_far (state, ARMul_CP15_R5_MMU_EXCPT, pc); - if (!XScale_debug_moe (state, ARMul_CP14_R10_MOE_BT)) - break; - } - - /* Force the next instruction to be refetched. */ - state->NextInstr = RESUME; - break; - } - } - if (DESTReg == 15) - { - /* MSR reg to CPSR. */ - UNDEF_MSRPC; - temp = DPRegRHS; -#ifdef MODET - /* Don't allow TBIT to be set by MSR. */ - temp &= ~ TBIT; -#endif - ARMul_FixCPSR (state, instr, temp); - } - else - UNDEF_Test; - - break; - - case 0x13: /* TEQP reg */ -#ifdef MODET - if ((BITS (4, 11) & 0xF9) == 0x9) - /* LDR register offset, write-back, down, pre indexed. */ - LHPREDOWNWB (); - /* Continue with remaining instruction decode. */ -#endif - if (DESTReg == 15) - { - /* TEQP reg */ -#ifdef MODE32 - state->Cpsr = GETSPSR (state->Bank); - ARMul_CPSRAltered (state); -#else - rhs = DPRegRHS; - temp = LHS ^ rhs; - SETR15PSR (temp); -#endif - } - else - { - /* TEQ Reg. */ - rhs = DPSRegRHS; - dest = LHS ^ rhs; - ARMul_NegZero (state, dest); - } - break; - - case 0x14: /* CMP reg and MRS SPSR and SWP byte. */ - if (state->is_v5e) - { - if (BIT (4) == 0 && BIT (7) == 1) - { - /* ElSegundo SMLALxy insn. */ - unsigned long long op1 = state->Reg[BITS (0, 3)]; - unsigned long long op2 = state->Reg[BITS (8, 11)]; - unsigned long long dest; - unsigned long long result; - - if (BIT (5)) - op1 >>= 16; - if (BIT (6)) - op2 >>= 16; - op1 &= 0xFFFF; - if (op1 & 0x8000) - op1 -= 65536; - op2 &= 0xFFFF; - if (op2 & 0x8000) - op2 -= 65536; - - dest = (unsigned long long) state->Reg[BITS (16, 19)] << 32; - dest |= state->Reg[BITS (12, 15)]; - dest += op1 * op2; - state->Reg[BITS (12, 15)] = dest; - state->Reg[BITS (16, 19)] = dest >> 32; - break; - } - - if (BITS (4, 11) == 5) - { - /* ElSegundo QDADD insn. */ - ARMword op1 = state->Reg[BITS (0, 3)]; - ARMword op2 = state->Reg[BITS (16, 19)]; - ARMword op2d = op2 + op2; - ARMword result; - - if (AddOverflow (op2, op2, op2d)) - { - SETS; - op2d = POS (op2d) ? 0x80000000 : 0x7fffffff; - } - - result = op1 + op2d; - if (AddOverflow (op1, op2d, result)) - { - SETS; - result = POS (result) ? 0x80000000 : 0x7fffffff; - } - - state->Reg[BITS (12, 15)] = result; - break; - } - } -#ifdef MODET - if (BITS (4, 7) == 0xB) - { - /* STRH immediate offset, no write-back, down, pre indexed. */ - SHPREDOWN (); - break; - } - if (BITS (4, 7) == 0xD) - { - Handle_Load_Double (state, instr); - break; - } - if (BITS (4, 7) == 0xF) - { - Handle_Store_Double (state, instr); - break; - } -#endif - if (BITS (4, 11) == 9) - { - /* SWP */ - UNDEF_SWPPC; - temp = LHS; - BUSUSEDINCPCS; -#ifndef MODE32 - if (VECTORACCESS (temp) || ADDREXCEPT (temp)) - { - INTERNALABORT (temp); - (void) ARMul_LoadByte (state, temp); - (void) ARMul_LoadByte (state, temp); - } - else -#endif - DEST = ARMul_SwapByte (state, temp, state->Reg[RHSReg]); - if (state->abortSig || state->Aborted) - TAKEABORT; - } - else if ((BITS (0, 11) == 0) && (LHSReg == 15)) - { - /* MRS SPSR */ - UNDEF_MRSPC; - DEST = GETSPSR (state->Bank); - } - else - UNDEF_Test; - - break; - - case 0x15: /* CMPP reg. */ -#ifdef MODET - if ((BITS (4, 7) & 0x9) == 0x9) - /* LDR immediate offset, no write-back, down, pre indexed. */ - LHPREDOWN (); - /* Continue with remaining instruction decode. */ -#endif - if (DESTReg == 15) - { - /* CMPP reg. */ -#ifdef MODE32 - state->Cpsr = GETSPSR (state->Bank); - ARMul_CPSRAltered (state); -#else - rhs = DPRegRHS; - temp = LHS - rhs; - SETR15PSR (temp); -#endif - } - else - { - /* CMP reg. */ - lhs = LHS; - rhs = DPRegRHS; - dest = lhs - rhs; - ARMul_NegZero (state, dest); - if ((lhs >= rhs) || ((rhs | lhs) >> 31)) - { - ARMul_SubCarry (state, lhs, rhs, dest); - ARMul_SubOverflow (state, lhs, rhs, dest); - } - else - { - CLEARC; - CLEARV; - } - } - break; - - case 0x16: /* CMN reg and MSR reg to SPSR */ - if (state->is_v5e) - { - if (BIT (4) == 0 && BIT (7) == 1 && BITS (12, 15) == 0) - { - /* ElSegundo SMULxy insn. */ - ARMword op1 = state->Reg[BITS (0, 3)]; - ARMword op2 = state->Reg[BITS (8, 11)]; - ARMword Rn = state->Reg[BITS (12, 15)]; - - if (BIT (5)) - op1 >>= 16; - if (BIT (6)) - op2 >>= 16; - op1 &= 0xFFFF; - op2 &= 0xFFFF; - if (op1 & 0x8000) - op1 -= 65536; - if (op2 & 0x8000) - op2 -= 65536; - - state->Reg[BITS (16, 19)] = op1 * op2; - break; - } - - if (BITS (4, 11) == 5) - { - /* ElSegundo QDSUB insn. */ - ARMword op1 = state->Reg[BITS (0, 3)]; - ARMword op2 = state->Reg[BITS (16, 19)]; - ARMword op2d = op2 + op2; - ARMword result; - - if (AddOverflow (op2, op2, op2d)) - { - SETS; - op2d = POS (op2d) ? 0x80000000 : 0x7fffffff; - } - - result = op1 - op2d; - if (SubOverflow (op1, op2d, result)) - { - SETS; - result = POS (result) ? 0x80000000 : 0x7fffffff; - } - - state->Reg[BITS (12, 15)] = result; - break; - } - } - - if (state->is_v5) - { - if (BITS (4, 11) == 0xF1 && BITS (16, 19) == 0xF) - { - /* ARM5 CLZ insn. */ - ARMword op1 = state->Reg[BITS (0, 3)]; - int result = 32; - - if (op1) - for (result = 0; (op1 & 0x80000000) == 0; op1 <<= 1) - result++; - - state->Reg[BITS (12, 15)] = result; - break; - } - } -#ifdef MODET - if (BITS (4, 7) == 0xB) - { - /* STRH immediate offset, write-back, down, pre indexed. */ - SHPREDOWNWB (); - break; - } - if (BITS (4, 7) == 0xD) - { - Handle_Load_Double (state, instr); - break; - } - if (BITS (4, 7) == 0xF) - { - Handle_Store_Double (state, instr); - break; - } -#endif - if (DESTReg == 15) - { - /* MSR */ - UNDEF_MSRPC; - ARMul_FixSPSR (state, instr, DPRegRHS); - } - else - { - UNDEF_Test; - } - break; - - case 0x17: /* CMNP reg */ -#ifdef MODET - if ((BITS (4, 7) & 0x9) == 0x9) - /* LDR immediate offset, write-back, down, pre indexed. */ - LHPREDOWNWB (); - /* Continue with remaining instruction decoding. */ -#endif - if (DESTReg == 15) - { -#ifdef MODE32 - state->Cpsr = GETSPSR (state->Bank); - ARMul_CPSRAltered (state); -#else - rhs = DPRegRHS; - temp = LHS + rhs; - SETR15PSR (temp); -#endif - break; - } - else - { - /* CMN reg. */ - lhs = LHS; - rhs = DPRegRHS; - dest = lhs + rhs; - ASSIGNZ (dest == 0); - if ((lhs | rhs) >> 30) - { - /* Possible C,V,N to set. */ - ASSIGNN (NEG (dest)); - ARMul_AddCarry (state, lhs, rhs, dest); - ARMul_AddOverflow (state, lhs, rhs, dest); - } - else - { - CLEARN; - CLEARC; - CLEARV; - } - } - break; - - case 0x18: /* ORR reg */ -#ifdef MODET - if (BITS (4, 11) == 0xB) - { - /* STRH register offset, no write-back, up, pre indexed. */ - SHPREUP (); - break; - } - if (BITS (4, 7) == 0xD) - { - Handle_Load_Double (state, instr); - break; - } - if (BITS (4, 7) == 0xF) - { - Handle_Store_Double (state, instr); - break; - } -#endif - rhs = DPRegRHS; - dest = LHS | rhs; - WRITEDEST (dest); - break; - - case 0x19: /* ORRS reg */ -#ifdef MODET - if ((BITS (4, 11) & 0xF9) == 0x9) - /* LDR register offset, no write-back, up, pre indexed. */ - LHPREUP (); - /* Continue with remaining instruction decoding. */ -#endif - rhs = DPSRegRHS; - dest = LHS | rhs; - WRITESDEST (dest); - break; - - case 0x1a: /* MOV reg */ -#ifdef MODET - if (BITS (4, 11) == 0xB) - { - /* STRH register offset, write-back, up, pre indexed. */ - SHPREUPWB (); - break; - } - if (BITS (4, 7) == 0xD) - { - Handle_Load_Double (state, instr); - break; - } - if (BITS (4, 7) == 0xF) - { - Handle_Store_Double (state, instr); - break; - } -#endif - dest = DPRegRHS; - WRITEDEST (dest); - break; - - case 0x1b: /* MOVS reg */ -#ifdef MODET - if ((BITS (4, 11) & 0xF9) == 0x9) - /* LDR register offset, write-back, up, pre indexed. */ - LHPREUPWB (); - /* Continue with remaining instruction decoding. */ -#endif - dest = DPSRegRHS; - WRITESDEST (dest); - break; - - case 0x1c: /* BIC reg */ -#ifdef MODET - if (BITS (4, 7) == 0xB) - { - /* STRH immediate offset, no write-back, up, pre indexed. */ - SHPREUP (); - break; - } - if (BITS (4, 7) == 0xD) - { - Handle_Load_Double (state, instr); - break; - } - else if (BITS (4, 7) == 0xF) - { - Handle_Store_Double (state, instr); - break; - } -#endif - rhs = DPRegRHS; - dest = LHS & ~rhs; - WRITEDEST (dest); - break; - - case 0x1d: /* BICS reg */ -#ifdef MODET - if ((BITS (4, 7) & 0x9) == 0x9) - /* LDR immediate offset, no write-back, up, pre indexed. */ - LHPREUP (); - /* Continue with instruction decoding. */ -#endif - rhs = DPSRegRHS; - dest = LHS & ~rhs; - WRITESDEST (dest); - break; - - case 0x1e: /* MVN reg */ -#ifdef MODET - if (BITS (4, 7) == 0xB) - { - /* STRH immediate offset, write-back, up, pre indexed. */ - SHPREUPWB (); - break; - } - if (BITS (4, 7) == 0xD) - { - Handle_Load_Double (state, instr); - break; - } - if (BITS (4, 7) == 0xF) - { - Handle_Store_Double (state, instr); - break; - } -#endif - dest = ~DPRegRHS; - WRITEDEST (dest); - break; - - case 0x1f: /* MVNS reg */ -#ifdef MODET - if ((BITS (4, 7) & 0x9) == 0x9) - /* LDR immediate offset, write-back, up, pre indexed. */ - LHPREUPWB (); - /* Continue instruction decoding. */ -#endif - dest = ~DPSRegRHS; - WRITESDEST (dest); - break; - - - /* Data Processing Immediate RHS Instructions. */ - - case 0x20: /* AND immed */ - dest = LHS & DPImmRHS; - WRITEDEST (dest); - break; - - case 0x21: /* ANDS immed */ - DPSImmRHS; - dest = LHS & rhs; - WRITESDEST (dest); - break; - - case 0x22: /* EOR immed */ - dest = LHS ^ DPImmRHS; - WRITEDEST (dest); - break; - - case 0x23: /* EORS immed */ - DPSImmRHS; - dest = LHS ^ rhs; - WRITESDEST (dest); - break; - - case 0x24: /* SUB immed */ - dest = LHS - DPImmRHS; - WRITEDEST (dest); - break; - - case 0x25: /* SUBS immed */ - lhs = LHS; - rhs = DPImmRHS; - dest = lhs - rhs; - - if ((lhs >= rhs) || ((rhs | lhs) >> 31)) - { - ARMul_SubCarry (state, lhs, rhs, dest); - ARMul_SubOverflow (state, lhs, rhs, dest); - } - else - { - CLEARC; - CLEARV; - } - WRITESDEST (dest); - break; - - case 0x26: /* RSB immed */ - dest = DPImmRHS - LHS; - WRITEDEST (dest); - break; - - case 0x27: /* RSBS immed */ - lhs = LHS; - rhs = DPImmRHS; - dest = rhs - lhs; - - if ((rhs >= lhs) || ((rhs | lhs) >> 31)) - { - ARMul_SubCarry (state, rhs, lhs, dest); - ARMul_SubOverflow (state, rhs, lhs, dest); - } - else - { - CLEARC; - CLEARV; - } - WRITESDEST (dest); - break; - - case 0x28: /* ADD immed */ - dest = LHS + DPImmRHS; - WRITEDEST (dest); - break; - - case 0x29: /* ADDS immed */ - lhs = LHS; - rhs = DPImmRHS; - dest = lhs + rhs; - ASSIGNZ (dest == 0); - - if ((lhs | rhs) >> 30) - { - /* Possible C,V,N to set. */ - ASSIGNN (NEG (dest)); - ARMul_AddCarry (state, lhs, rhs, dest); - ARMul_AddOverflow (state, lhs, rhs, dest); - } - else - { - CLEARN; - CLEARC; - CLEARV; - } - WRITESDEST (dest); - break; - - case 0x2a: /* ADC immed */ - dest = LHS + DPImmRHS + CFLAG; - WRITEDEST (dest); - break; - - case 0x2b: /* ADCS immed */ - lhs = LHS; - rhs = DPImmRHS; - dest = lhs + rhs + CFLAG; - ASSIGNZ (dest == 0); - if ((lhs | rhs) >> 30) - { - /* Possible C,V,N to set. */ - ASSIGNN (NEG (dest)); - ARMul_AddCarry (state, lhs, rhs, dest); - ARMul_AddOverflow (state, lhs, rhs, dest); - } - else - { - CLEARN; - CLEARC; - CLEARV; - } - WRITESDEST (dest); - break; - - case 0x2c: /* SBC immed */ - dest = LHS - DPImmRHS - !CFLAG; - WRITEDEST (dest); - break; - - case 0x2d: /* SBCS immed */ - lhs = LHS; - rhs = DPImmRHS; - dest = lhs - rhs - !CFLAG; - if ((lhs >= rhs) || ((rhs | lhs) >> 31)) - { - ARMul_SubCarry (state, lhs, rhs, dest); - ARMul_SubOverflow (state, lhs, rhs, dest); - } - else - { - CLEARC; - CLEARV; - } - WRITESDEST (dest); - break; - - case 0x2e: /* RSC immed */ - dest = DPImmRHS - LHS - !CFLAG; - WRITEDEST (dest); - break; - - case 0x2f: /* RSCS immed */ - lhs = LHS; - rhs = DPImmRHS; - dest = rhs - lhs - !CFLAG; - if ((rhs >= lhs) || ((rhs | lhs) >> 31)) - { - ARMul_SubCarry (state, rhs, lhs, dest); - ARMul_SubOverflow (state, rhs, lhs, dest); - } - else - { - CLEARC; - CLEARV; - } - WRITESDEST (dest); - break; - - case 0x30: /* TST immed */ - UNDEF_Test; - break; - - case 0x31: /* TSTP immed */ - if (DESTReg == 15) - { - /* TSTP immed. */ -#ifdef MODE32 - state->Cpsr = GETSPSR (state->Bank); - ARMul_CPSRAltered (state); -#else - temp = LHS & DPImmRHS; - SETR15PSR (temp); -#endif - } - else - { - /* TST immed. */ - DPSImmRHS; - dest = LHS & rhs; - ARMul_NegZero (state, dest); - } - break; - - case 0x32: /* TEQ immed and MSR immed to CPSR */ - if (DESTReg == 15) - /* MSR immed to CPSR. */ - ARMul_FixCPSR (state, instr, DPImmRHS); - else - UNDEF_Test; - break; - - case 0x33: /* TEQP immed */ - if (DESTReg == 15) - { - /* TEQP immed. */ -#ifdef MODE32 - state->Cpsr = GETSPSR (state->Bank); - ARMul_CPSRAltered (state); -#else - temp = LHS ^ DPImmRHS; - SETR15PSR (temp); -#endif - } - else - { - DPSImmRHS; /* TEQ immed */ - dest = LHS ^ rhs; - ARMul_NegZero (state, dest); - } - break; - - case 0x34: /* CMP immed */ - UNDEF_Test; - break; - - case 0x35: /* CMPP immed */ - if (DESTReg == 15) - { - /* CMPP immed. */ -#ifdef MODE32 - state->Cpsr = GETSPSR (state->Bank); - ARMul_CPSRAltered (state); -#else - temp = LHS - DPImmRHS; - SETR15PSR (temp); -#endif - break; - } - else - { - /* CMP immed. */ - lhs = LHS; - rhs = DPImmRHS; - dest = lhs - rhs; - ARMul_NegZero (state, dest); - - if ((lhs >= rhs) || ((rhs | lhs) >> 31)) - { - ARMul_SubCarry (state, lhs, rhs, dest); - ARMul_SubOverflow (state, lhs, rhs, dest); - } - else - { - CLEARC; - CLEARV; - } - } - break; - - case 0x36: /* CMN immed and MSR immed to SPSR */ - if (DESTReg == 15) - ARMul_FixSPSR (state, instr, DPImmRHS); - else - UNDEF_Test; - break; - - case 0x37: /* CMNP immed. */ - if (DESTReg == 15) - { - /* CMNP immed. */ -#ifdef MODE32 - state->Cpsr = GETSPSR (state->Bank); - ARMul_CPSRAltered (state); -#else - temp = LHS + DPImmRHS; - SETR15PSR (temp); -#endif - break; - } - else - { - /* CMN immed. */ - lhs = LHS; - rhs = DPImmRHS; - dest = lhs + rhs; - ASSIGNZ (dest == 0); - if ((lhs | rhs) >> 30) - { - /* Possible C,V,N to set. */ - ASSIGNN (NEG (dest)); - ARMul_AddCarry (state, lhs, rhs, dest); - ARMul_AddOverflow (state, lhs, rhs, dest); - } - else - { - CLEARN; - CLEARC; - CLEARV; - } - } - break; - - case 0x38: /* ORR immed. */ - dest = LHS | DPImmRHS; - WRITEDEST (dest); - break; - - case 0x39: /* ORRS immed. */ - DPSImmRHS; - dest = LHS | rhs; - WRITESDEST (dest); - break; - - case 0x3a: /* MOV immed. */ - dest = DPImmRHS; - WRITEDEST (dest); - break; - - case 0x3b: /* MOVS immed. */ - DPSImmRHS; - WRITESDEST (rhs); - break; - - case 0x3c: /* BIC immed. */ - dest = LHS & ~DPImmRHS; - WRITEDEST (dest); - break; - - case 0x3d: /* BICS immed. */ - DPSImmRHS; - dest = LHS & ~rhs; - WRITESDEST (dest); - break; - - case 0x3e: /* MVN immed. */ - dest = ~DPImmRHS; - WRITEDEST (dest); - break; - - case 0x3f: /* MVNS immed. */ - DPSImmRHS; - WRITESDEST (~rhs); - break; - - - /* Single Data Transfer Immediate RHS Instructions. */ - - case 0x40: /* Store Word, No WriteBack, Post Dec, Immed. */ - lhs = LHS; - if (StoreWord (state, instr, lhs)) - LSBase = lhs - LSImmRHS; - break; - - case 0x41: /* Load Word, No WriteBack, Post Dec, Immed. */ - lhs = LHS; - if (LoadWord (state, instr, lhs)) - LSBase = lhs - LSImmRHS; - break; - - case 0x42: /* Store Word, WriteBack, Post Dec, Immed. */ - UNDEF_LSRBaseEQDestWb; - UNDEF_LSRPCBaseWb; - lhs = LHS; - temp = lhs - LSImmRHS; - state->NtransSig = LOW; - if (StoreWord (state, instr, lhs)) - LSBase = temp; - state->NtransSig = (state->Mode & 3) ? HIGH : LOW; - break; - - case 0x43: /* Load Word, WriteBack, Post Dec, Immed. */ - UNDEF_LSRBaseEQDestWb; - UNDEF_LSRPCBaseWb; - lhs = LHS; - state->NtransSig = LOW; - if (LoadWord (state, instr, lhs)) - LSBase = lhs - LSImmRHS; - state->NtransSig = (state->Mode & 3) ? HIGH : LOW; - break; - - case 0x44: /* Store Byte, No WriteBack, Post Dec, Immed. */ - lhs = LHS; - if (StoreByte (state, instr, lhs)) - LSBase = lhs - LSImmRHS; - break; - - case 0x45: /* Load Byte, No WriteBack, Post Dec, Immed. */ - lhs = LHS; - if (LoadByte (state, instr, lhs, LUNSIGNED)) - LSBase = lhs - LSImmRHS; - break; - - case 0x46: /* Store Byte, WriteBack, Post Dec, Immed. */ - UNDEF_LSRBaseEQDestWb; - UNDEF_LSRPCBaseWb; - lhs = LHS; - state->NtransSig = LOW; - if (StoreByte (state, instr, lhs)) - LSBase = lhs - LSImmRHS; - state->NtransSig = (state->Mode & 3) ? HIGH : LOW; - break; - - case 0x47: /* Load Byte, WriteBack, Post Dec, Immed. */ - UNDEF_LSRBaseEQDestWb; - UNDEF_LSRPCBaseWb; - lhs = LHS; - state->NtransSig = LOW; - if (LoadByte (state, instr, lhs, LUNSIGNED)) - LSBase = lhs - LSImmRHS; - state->NtransSig = (state->Mode & 3) ? HIGH : LOW; - break; - - case 0x48: /* Store Word, No WriteBack, Post Inc, Immed. */ - lhs = LHS; - if (StoreWord (state, instr, lhs)) - LSBase = lhs + LSImmRHS; - break; - - case 0x49: /* Load Word, No WriteBack, Post Inc, Immed. */ - lhs = LHS; - if (LoadWord (state, instr, lhs)) - LSBase = lhs + LSImmRHS; - break; - - case 0x4a: /* Store Word, WriteBack, Post Inc, Immed. */ - UNDEF_LSRBaseEQDestWb; - UNDEF_LSRPCBaseWb; - lhs = LHS; - state->NtransSig = LOW; - if (StoreWord (state, instr, lhs)) - LSBase = lhs + LSImmRHS; - state->NtransSig = (state->Mode & 3) ? HIGH : LOW; - break; - - case 0x4b: /* Load Word, WriteBack, Post Inc, Immed. */ - UNDEF_LSRBaseEQDestWb; - UNDEF_LSRPCBaseWb; - lhs = LHS; - state->NtransSig = LOW; - if (LoadWord (state, instr, lhs)) - LSBase = lhs + LSImmRHS; - state->NtransSig = (state->Mode & 3) ? HIGH : LOW; - break; - - case 0x4c: /* Store Byte, No WriteBack, Post Inc, Immed. */ - lhs = LHS; - if (StoreByte (state, instr, lhs)) - LSBase = lhs + LSImmRHS; - break; - - case 0x4d: /* Load Byte, No WriteBack, Post Inc, Immed. */ - lhs = LHS; - if (LoadByte (state, instr, lhs, LUNSIGNED)) - LSBase = lhs + LSImmRHS; - break; - - case 0x4e: /* Store Byte, WriteBack, Post Inc, Immed. */ - UNDEF_LSRBaseEQDestWb; - UNDEF_LSRPCBaseWb; - lhs = LHS; - state->NtransSig = LOW; - if (StoreByte (state, instr, lhs)) - LSBase = lhs + LSImmRHS; - state->NtransSig = (state->Mode & 3) ? HIGH : LOW; - break; - - case 0x4f: /* Load Byte, WriteBack, Post Inc, Immed. */ - UNDEF_LSRBaseEQDestWb; - UNDEF_LSRPCBaseWb; - lhs = LHS; - state->NtransSig = LOW; - if (LoadByte (state, instr, lhs, LUNSIGNED)) - LSBase = lhs + LSImmRHS; - state->NtransSig = (state->Mode & 3) ? HIGH : LOW; - break; - - - case 0x50: /* Store Word, No WriteBack, Pre Dec, Immed. */ - (void) StoreWord (state, instr, LHS - LSImmRHS); - break; - - case 0x51: /* Load Word, No WriteBack, Pre Dec, Immed. */ - (void) LoadWord (state, instr, LHS - LSImmRHS); - break; - - case 0x52: /* Store Word, WriteBack, Pre Dec, Immed. */ - UNDEF_LSRBaseEQDestWb; - UNDEF_LSRPCBaseWb; - temp = LHS - LSImmRHS; - if (StoreWord (state, instr, temp)) - LSBase = temp; - break; - - case 0x53: /* Load Word, WriteBack, Pre Dec, Immed. */ - UNDEF_LSRBaseEQDestWb; - UNDEF_LSRPCBaseWb; - temp = LHS - LSImmRHS; - if (LoadWord (state, instr, temp)) - LSBase = temp; - break; - - case 0x54: /* Store Byte, No WriteBack, Pre Dec, Immed. */ - (void) StoreByte (state, instr, LHS - LSImmRHS); - break; - - case 0x55: /* Load Byte, No WriteBack, Pre Dec, Immed. */ - (void) LoadByte (state, instr, LHS - LSImmRHS, LUNSIGNED); - break; - - case 0x56: /* Store Byte, WriteBack, Pre Dec, Immed. */ - UNDEF_LSRBaseEQDestWb; - UNDEF_LSRPCBaseWb; - temp = LHS - LSImmRHS; - if (StoreByte (state, instr, temp)) - LSBase = temp; - break; - - case 0x57: /* Load Byte, WriteBack, Pre Dec, Immed. */ - UNDEF_LSRBaseEQDestWb; - UNDEF_LSRPCBaseWb; - temp = LHS - LSImmRHS; - if (LoadByte (state, instr, temp, LUNSIGNED)) - LSBase = temp; - break; - - case 0x58: /* Store Word, No WriteBack, Pre Inc, Immed. */ - (void) StoreWord (state, instr, LHS + LSImmRHS); - break; - - case 0x59: /* Load Word, No WriteBack, Pre Inc, Immed. */ - (void) LoadWord (state, instr, LHS + LSImmRHS); - break; - - case 0x5a: /* Store Word, WriteBack, Pre Inc, Immed. */ - UNDEF_LSRBaseEQDestWb; - UNDEF_LSRPCBaseWb; - temp = LHS + LSImmRHS; - if (StoreWord (state, instr, temp)) - LSBase = temp; - break; - - case 0x5b: /* Load Word, WriteBack, Pre Inc, Immed. */ - UNDEF_LSRBaseEQDestWb; - UNDEF_LSRPCBaseWb; - temp = LHS + LSImmRHS; - if (LoadWord (state, instr, temp)) - LSBase = temp; - break; - - case 0x5c: /* Store Byte, No WriteBack, Pre Inc, Immed. */ - (void) StoreByte (state, instr, LHS + LSImmRHS); - break; - - case 0x5d: /* Load Byte, No WriteBack, Pre Inc, Immed. */ - (void) LoadByte (state, instr, LHS + LSImmRHS, LUNSIGNED); - break; - - case 0x5e: /* Store Byte, WriteBack, Pre Inc, Immed. */ - UNDEF_LSRBaseEQDestWb; - UNDEF_LSRPCBaseWb; - temp = LHS + LSImmRHS; - if (StoreByte (state, instr, temp)) - LSBase = temp; - break; - - case 0x5f: /* Load Byte, WriteBack, Pre Inc, Immed. */ - UNDEF_LSRBaseEQDestWb; - UNDEF_LSRPCBaseWb; - temp = LHS + LSImmRHS; - if (LoadByte (state, instr, temp, LUNSIGNED)) - LSBase = temp; - break; - - - /* Single Data Transfer Register RHS Instructions. */ - - case 0x60: /* Store Word, No WriteBack, Post Dec, Reg. */ - if (BIT (4)) - { - ARMul_UndefInstr (state, instr); - break; - } - UNDEF_LSRBaseEQOffWb; - UNDEF_LSRBaseEQDestWb; - UNDEF_LSRPCBaseWb; - UNDEF_LSRPCOffWb; - lhs = LHS; - if (StoreWord (state, instr, lhs)) - LSBase = lhs - LSRegRHS; - break; - - case 0x61: /* Load Word, No WriteBack, Post Dec, Reg. */ - if (BIT (4)) - { - ARMul_UndefInstr (state, instr); - break; - } - UNDEF_LSRBaseEQOffWb; - UNDEF_LSRBaseEQDestWb; - UNDEF_LSRPCBaseWb; - UNDEF_LSRPCOffWb; - lhs = LHS; - temp = lhs - LSRegRHS; - if (LoadWord (state, instr, lhs)) - LSBase = temp; - break; - - case 0x62: /* Store Word, WriteBack, Post Dec, Reg. */ - if (BIT (4)) - { - ARMul_UndefInstr (state, instr); - break; - } - UNDEF_LSRBaseEQOffWb; - UNDEF_LSRBaseEQDestWb; - UNDEF_LSRPCBaseWb; - UNDEF_LSRPCOffWb; - lhs = LHS; - state->NtransSig = LOW; - if (StoreWord (state, instr, lhs)) - LSBase = lhs - LSRegRHS; - state->NtransSig = (state->Mode & 3) ? HIGH : LOW; - break; - - case 0x63: /* Load Word, WriteBack, Post Dec, Reg. */ - if (BIT (4)) - { - ARMul_UndefInstr (state, instr); - break; - } - UNDEF_LSRBaseEQOffWb; - UNDEF_LSRBaseEQDestWb; - UNDEF_LSRPCBaseWb; - UNDEF_LSRPCOffWb; - lhs = LHS; - temp = lhs - LSRegRHS; - state->NtransSig = LOW; - if (LoadWord (state, instr, lhs)) - LSBase = temp; - state->NtransSig = (state->Mode & 3) ? HIGH : LOW; - break; - - case 0x64: /* Store Byte, No WriteBack, Post Dec, Reg. */ - if (BIT (4)) - { - ARMul_UndefInstr (state, instr); - break; - } - UNDEF_LSRBaseEQOffWb; - UNDEF_LSRBaseEQDestWb; - UNDEF_LSRPCBaseWb; - UNDEF_LSRPCOffWb; - lhs = LHS; - if (StoreByte (state, instr, lhs)) - LSBase = lhs - LSRegRHS; - break; - - case 0x65: /* Load Byte, No WriteBack, Post Dec, Reg. */ - if (BIT (4)) - { - ARMul_UndefInstr (state, instr); - break; - } - UNDEF_LSRBaseEQOffWb; - UNDEF_LSRBaseEQDestWb; - UNDEF_LSRPCBaseWb; - UNDEF_LSRPCOffWb; - lhs = LHS; - temp = lhs - LSRegRHS; - if (LoadByte (state, instr, lhs, LUNSIGNED)) - LSBase = temp; - break; - - case 0x66: /* Store Byte, WriteBack, Post Dec, Reg. */ - if (BIT (4)) - { - ARMul_UndefInstr (state, instr); - break; - } - UNDEF_LSRBaseEQOffWb; - UNDEF_LSRBaseEQDestWb; - UNDEF_LSRPCBaseWb; - UNDEF_LSRPCOffWb; - lhs = LHS; - state->NtransSig = LOW; - if (StoreByte (state, instr, lhs)) - LSBase = lhs - LSRegRHS; - state->NtransSig = (state->Mode & 3) ? HIGH : LOW; - break; - - case 0x67: /* Load Byte, WriteBack, Post Dec, Reg. */ - if (BIT (4)) - { - ARMul_UndefInstr (state, instr); - break; - } - UNDEF_LSRBaseEQOffWb; - UNDEF_LSRBaseEQDestWb; - UNDEF_LSRPCBaseWb; - UNDEF_LSRPCOffWb; - lhs = LHS; - temp = lhs - LSRegRHS; - state->NtransSig = LOW; - if (LoadByte (state, instr, lhs, LUNSIGNED)) - LSBase = temp; - state->NtransSig = (state->Mode & 3) ? HIGH : LOW; - break; - - case 0x68: /* Store Word, No WriteBack, Post Inc, Reg. */ - if (BIT (4)) - { - ARMul_UndefInstr (state, instr); - break; - } - UNDEF_LSRBaseEQOffWb; - UNDEF_LSRBaseEQDestWb; - UNDEF_LSRPCBaseWb; - UNDEF_LSRPCOffWb; - lhs = LHS; - if (StoreWord (state, instr, lhs)) - LSBase = lhs + LSRegRHS; - break; - - case 0x69: /* Load Word, No WriteBack, Post Inc, Reg. */ - if (BIT (4)) - { - ARMul_UndefInstr (state, instr); - break; - } - UNDEF_LSRBaseEQOffWb; - UNDEF_LSRBaseEQDestWb; - UNDEF_LSRPCBaseWb; - UNDEF_LSRPCOffWb; - lhs = LHS; - temp = lhs + LSRegRHS; - if (LoadWord (state, instr, lhs)) - LSBase = temp; - break; - - case 0x6a: /* Store Word, WriteBack, Post Inc, Reg. */ - if (BIT (4)) - { - ARMul_UndefInstr (state, instr); - break; - } - UNDEF_LSRBaseEQOffWb; - UNDEF_LSRBaseEQDestWb; - UNDEF_LSRPCBaseWb; - UNDEF_LSRPCOffWb; - lhs = LHS; - state->NtransSig = LOW; - if (StoreWord (state, instr, lhs)) - LSBase = lhs + LSRegRHS; - state->NtransSig = (state->Mode & 3) ? HIGH : LOW; - break; - - case 0x6b: /* Load Word, WriteBack, Post Inc, Reg. */ - if (BIT (4)) - { - ARMul_UndefInstr (state, instr); - break; - } - UNDEF_LSRBaseEQOffWb; - UNDEF_LSRBaseEQDestWb; - UNDEF_LSRPCBaseWb; - UNDEF_LSRPCOffWb; - lhs = LHS; - temp = lhs + LSRegRHS; - state->NtransSig = LOW; - if (LoadWord (state, instr, lhs)) - LSBase = temp; - state->NtransSig = (state->Mode & 3) ? HIGH : LOW; - break; - - case 0x6c: /* Store Byte, No WriteBack, Post Inc, Reg. */ - if (BIT (4)) - { - ARMul_UndefInstr (state, instr); - break; - } - UNDEF_LSRBaseEQOffWb; - UNDEF_LSRBaseEQDestWb; - UNDEF_LSRPCBaseWb; - UNDEF_LSRPCOffWb; - lhs = LHS; - if (StoreByte (state, instr, lhs)) - LSBase = lhs + LSRegRHS; - break; - - case 0x6d: /* Load Byte, No WriteBack, Post Inc, Reg. */ - if (BIT (4)) - { - ARMul_UndefInstr (state, instr); - break; - } - UNDEF_LSRBaseEQOffWb; - UNDEF_LSRBaseEQDestWb; - UNDEF_LSRPCBaseWb; - UNDEF_LSRPCOffWb; - lhs = LHS; - temp = lhs + LSRegRHS; - if (LoadByte (state, instr, lhs, LUNSIGNED)) - LSBase = temp; - break; - - case 0x6e: /* Store Byte, WriteBack, Post Inc, Reg. */ - if (BIT (4)) - { - ARMul_UndefInstr (state, instr); - break; - } - UNDEF_LSRBaseEQOffWb; - UNDEF_LSRBaseEQDestWb; - UNDEF_LSRPCBaseWb; - UNDEF_LSRPCOffWb; - lhs = LHS; - state->NtransSig = LOW; - if (StoreByte (state, instr, lhs)) - LSBase = lhs + LSRegRHS; - state->NtransSig = (state->Mode & 3) ? HIGH : LOW; - break; - - case 0x6f: /* Load Byte, WriteBack, Post Inc, Reg. */ - if (BIT (4)) - { - ARMul_UndefInstr (state, instr); - break; - } - UNDEF_LSRBaseEQOffWb; - UNDEF_LSRBaseEQDestWb; - UNDEF_LSRPCBaseWb; - UNDEF_LSRPCOffWb; - lhs = LHS; - temp = lhs + LSRegRHS; - state->NtransSig = LOW; - if (LoadByte (state, instr, lhs, LUNSIGNED)) - LSBase = temp; - state->NtransSig = (state->Mode & 3) ? HIGH : LOW; - break; - - - case 0x70: /* Store Word, No WriteBack, Pre Dec, Reg. */ - if (BIT (4)) - { - ARMul_UndefInstr (state, instr); - break; - } - (void) StoreWord (state, instr, LHS - LSRegRHS); - break; - - case 0x71: /* Load Word, No WriteBack, Pre Dec, Reg. */ - if (BIT (4)) - { - ARMul_UndefInstr (state, instr); - break; - } - (void) LoadWord (state, instr, LHS - LSRegRHS); - break; - - case 0x72: /* Store Word, WriteBack, Pre Dec, Reg. */ - if (BIT (4)) - { - ARMul_UndefInstr (state, instr); - break; - } - UNDEF_LSRBaseEQOffWb; - UNDEF_LSRBaseEQDestWb; - UNDEF_LSRPCBaseWb; - UNDEF_LSRPCOffWb; - temp = LHS - LSRegRHS; - if (StoreWord (state, instr, temp)) - LSBase = temp; - break; - - case 0x73: /* Load Word, WriteBack, Pre Dec, Reg. */ - if (BIT (4)) - { - ARMul_UndefInstr (state, instr); - break; - } - UNDEF_LSRBaseEQOffWb; - UNDEF_LSRBaseEQDestWb; - UNDEF_LSRPCBaseWb; - UNDEF_LSRPCOffWb; - temp = LHS - LSRegRHS; - if (LoadWord (state, instr, temp)) - LSBase = temp; - break; - - case 0x74: /* Store Byte, No WriteBack, Pre Dec, Reg. */ - if (BIT (4)) - { - ARMul_UndefInstr (state, instr); - break; - } - (void) StoreByte (state, instr, LHS - LSRegRHS); - break; - - case 0x75: /* Load Byte, No WriteBack, Pre Dec, Reg. */ - if (BIT (4)) - { - ARMul_UndefInstr (state, instr); - break; - } - (void) LoadByte (state, instr, LHS - LSRegRHS, LUNSIGNED); - break; - - case 0x76: /* Store Byte, WriteBack, Pre Dec, Reg. */ - if (BIT (4)) - { - ARMul_UndefInstr (state, instr); - break; - } - UNDEF_LSRBaseEQOffWb; - UNDEF_LSRBaseEQDestWb; - UNDEF_LSRPCBaseWb; - UNDEF_LSRPCOffWb; - temp = LHS - LSRegRHS; - if (StoreByte (state, instr, temp)) - LSBase = temp; - break; - - case 0x77: /* Load Byte, WriteBack, Pre Dec, Reg. */ - if (BIT (4)) - { - ARMul_UndefInstr (state, instr); - break; - } - UNDEF_LSRBaseEQOffWb; - UNDEF_LSRBaseEQDestWb; - UNDEF_LSRPCBaseWb; - UNDEF_LSRPCOffWb; - temp = LHS - LSRegRHS; - if (LoadByte (state, instr, temp, LUNSIGNED)) - LSBase = temp; - break; - - case 0x78: /* Store Word, No WriteBack, Pre Inc, Reg. */ - if (BIT (4)) - { - ARMul_UndefInstr (state, instr); - break; - } - (void) StoreWord (state, instr, LHS + LSRegRHS); - break; - - case 0x79: /* Load Word, No WriteBack, Pre Inc, Reg. */ - if (BIT (4)) - { - ARMul_UndefInstr (state, instr); - break; - } - (void) LoadWord (state, instr, LHS + LSRegRHS); - break; - - case 0x7a: /* Store Word, WriteBack, Pre Inc, Reg. */ - if (BIT (4)) - { - ARMul_UndefInstr (state, instr); - break; - } - UNDEF_LSRBaseEQOffWb; - UNDEF_LSRBaseEQDestWb; - UNDEF_LSRPCBaseWb; - UNDEF_LSRPCOffWb; - temp = LHS + LSRegRHS; - if (StoreWord (state, instr, temp)) - LSBase = temp; - break; - - case 0x7b: /* Load Word, WriteBack, Pre Inc, Reg. */ - if (BIT (4)) - { - ARMul_UndefInstr (state, instr); - break; - } - UNDEF_LSRBaseEQOffWb; - UNDEF_LSRBaseEQDestWb; - UNDEF_LSRPCBaseWb; - UNDEF_LSRPCOffWb; - temp = LHS + LSRegRHS; - if (LoadWord (state, instr, temp)) - LSBase = temp; - break; - - case 0x7c: /* Store Byte, No WriteBack, Pre Inc, Reg. */ - if (BIT (4)) - { - ARMul_UndefInstr (state, instr); - break; - } - (void) StoreByte (state, instr, LHS + LSRegRHS); - break; - - case 0x7d: /* Load Byte, No WriteBack, Pre Inc, Reg. */ - if (BIT (4)) - { - ARMul_UndefInstr (state, instr); - break; - } - (void) LoadByte (state, instr, LHS + LSRegRHS, LUNSIGNED); - break; - - case 0x7e: /* Store Byte, WriteBack, Pre Inc, Reg. */ - if (BIT (4)) - { - ARMul_UndefInstr (state, instr); - break; - } - UNDEF_LSRBaseEQOffWb; - UNDEF_LSRBaseEQDestWb; - UNDEF_LSRPCBaseWb; - UNDEF_LSRPCOffWb; - temp = LHS + LSRegRHS; - if (StoreByte (state, instr, temp)) - LSBase = temp; - break; - - case 0x7f: /* Load Byte, WriteBack, Pre Inc, Reg. */ - if (BIT (4)) - { - /* Check for the special breakpoint opcode. - This value should correspond to the value defined - as ARM_BE_BREAKPOINT in gdb/arm/tm-arm.h. */ - if (BITS (0, 19) == 0xfdefe) - { - if (!ARMul_OSHandleSWI (state, SWI_Breakpoint)) - ARMul_Abort (state, ARMul_SWIV); - } - else - ARMul_UndefInstr (state, instr); - break; - } - UNDEF_LSRBaseEQOffWb; - UNDEF_LSRBaseEQDestWb; - UNDEF_LSRPCBaseWb; - UNDEF_LSRPCOffWb; - temp = LHS + LSRegRHS; - if (LoadByte (state, instr, temp, LUNSIGNED)) - LSBase = temp; - break; - - - /* Multiple Data Transfer Instructions. */ - - case 0x80: /* Store, No WriteBack, Post Dec. */ - STOREMULT (instr, LSBase - LSMNumRegs + 4L, 0L); - break; - - case 0x81: /* Load, No WriteBack, Post Dec. */ - LOADMULT (instr, LSBase - LSMNumRegs + 4L, 0L); - break; - - case 0x82: /* Store, WriteBack, Post Dec. */ - temp = LSBase - LSMNumRegs; - STOREMULT (instr, temp + 4L, temp); - break; - - case 0x83: /* Load, WriteBack, Post Dec. */ - temp = LSBase - LSMNumRegs; - LOADMULT (instr, temp + 4L, temp); - break; - - case 0x84: /* Store, Flags, No WriteBack, Post Dec. */ - STORESMULT (instr, LSBase - LSMNumRegs + 4L, 0L); - break; - - case 0x85: /* Load, Flags, No WriteBack, Post Dec. */ - LOADSMULT (instr, LSBase - LSMNumRegs + 4L, 0L); - break; - - case 0x86: /* Store, Flags, WriteBack, Post Dec. */ - temp = LSBase - LSMNumRegs; - STORESMULT (instr, temp + 4L, temp); - break; - - case 0x87: /* Load, Flags, WriteBack, Post Dec. */ - temp = LSBase - LSMNumRegs; - LOADSMULT (instr, temp + 4L, temp); - break; - - case 0x88: /* Store, No WriteBack, Post Inc. */ - STOREMULT (instr, LSBase, 0L); - break; - - case 0x89: /* Load, No WriteBack, Post Inc. */ - LOADMULT (instr, LSBase, 0L); - break; - - case 0x8a: /* Store, WriteBack, Post Inc. */ - temp = LSBase; - STOREMULT (instr, temp, temp + LSMNumRegs); - break; - - case 0x8b: /* Load, WriteBack, Post Inc. */ - temp = LSBase; - LOADMULT (instr, temp, temp + LSMNumRegs); - break; - - case 0x8c: /* Store, Flags, No WriteBack, Post Inc. */ - STORESMULT (instr, LSBase, 0L); - break; - - case 0x8d: /* Load, Flags, No WriteBack, Post Inc. */ - LOADSMULT (instr, LSBase, 0L); - break; - - case 0x8e: /* Store, Flags, WriteBack, Post Inc. */ - temp = LSBase; - STORESMULT (instr, temp, temp + LSMNumRegs); - break; - - case 0x8f: /* Load, Flags, WriteBack, Post Inc. */ - temp = LSBase; - LOADSMULT (instr, temp, temp + LSMNumRegs); - break; - - case 0x90: /* Store, No WriteBack, Pre Dec. */ - STOREMULT (instr, LSBase - LSMNumRegs, 0L); - break; - - case 0x91: /* Load, No WriteBack, Pre Dec. */ - LOADMULT (instr, LSBase - LSMNumRegs, 0L); - break; - - case 0x92: /* Store, WriteBack, Pre Dec. */ - temp = LSBase - LSMNumRegs; - STOREMULT (instr, temp, temp); - break; - - case 0x93: /* Load, WriteBack, Pre Dec. */ - temp = LSBase - LSMNumRegs; - LOADMULT (instr, temp, temp); - break; - - case 0x94: /* Store, Flags, No WriteBack, Pre Dec. */ - STORESMULT (instr, LSBase - LSMNumRegs, 0L); - break; - - case 0x95: /* Load, Flags, No WriteBack, Pre Dec. */ - LOADSMULT (instr, LSBase - LSMNumRegs, 0L); - break; - - case 0x96: /* Store, Flags, WriteBack, Pre Dec. */ - temp = LSBase - LSMNumRegs; - STORESMULT (instr, temp, temp); - break; - - case 0x97: /* Load, Flags, WriteBack, Pre Dec. */ - temp = LSBase - LSMNumRegs; - LOADSMULT (instr, temp, temp); - break; - - case 0x98: /* Store, No WriteBack, Pre Inc. */ - STOREMULT (instr, LSBase + 4L, 0L); - break; - - case 0x99: /* Load, No WriteBack, Pre Inc. */ - LOADMULT (instr, LSBase + 4L, 0L); - break; - - case 0x9a: /* Store, WriteBack, Pre Inc. */ - temp = LSBase; - STOREMULT (instr, temp + 4L, temp + LSMNumRegs); - break; - - case 0x9b: /* Load, WriteBack, Pre Inc. */ - temp = LSBase; - LOADMULT (instr, temp + 4L, temp + LSMNumRegs); - break; - - case 0x9c: /* Store, Flags, No WriteBack, Pre Inc. */ - STORESMULT (instr, LSBase + 4L, 0L); - break; - - case 0x9d: /* Load, Flags, No WriteBack, Pre Inc. */ - LOADSMULT (instr, LSBase + 4L, 0L); - break; - - case 0x9e: /* Store, Flags, WriteBack, Pre Inc. */ - temp = LSBase; - STORESMULT (instr, temp + 4L, temp + LSMNumRegs); - break; - - case 0x9f: /* Load, Flags, WriteBack, Pre Inc. */ - temp = LSBase; - LOADSMULT (instr, temp + 4L, temp + LSMNumRegs); - break; - - - /* Branch forward. */ - case 0xa0: - case 0xa1: - case 0xa2: - case 0xa3: - case 0xa4: - case 0xa5: - case 0xa6: - case 0xa7: - state->Reg[15] = pc + 8 + POSBRANCH; - FLUSHPIPE; - break; - - - /* Branch backward. */ - case 0xa8: - case 0xa9: - case 0xaa: - case 0xab: - case 0xac: - case 0xad: - case 0xae: - case 0xaf: - state->Reg[15] = pc + 8 + NEGBRANCH; - FLUSHPIPE; - break; - - - /* Branch and Link forward. */ - case 0xb0: - case 0xb1: - case 0xb2: - case 0xb3: - case 0xb4: - case 0xb5: - case 0xb6: - case 0xb7: - /* Put PC into Link. */ -#ifdef MODE32 - state->Reg[14] = pc + 4; -#else - state->Reg[14] = (pc + 4) | ECC | ER15INT | EMODE; -#endif - state->Reg[15] = pc + 8 + POSBRANCH; - FLUSHPIPE; - break; - - - /* Branch and Link backward. */ - case 0xb8: - case 0xb9: - case 0xba: - case 0xbb: - case 0xbc: - case 0xbd: - case 0xbe: - case 0xbf: - /* Put PC into Link. */ -#ifdef MODE32 - state->Reg[14] = pc + 4; -#else - state->Reg[14] = (pc + 4) | ECC | ER15INT | EMODE; -#endif - state->Reg[15] = pc + 8 + NEGBRANCH; - FLUSHPIPE; - break; - - - /* Co-Processor Data Transfers. */ - case 0xc4: - if (state->is_v5) - { - /* Reading from R15 is UNPREDICTABLE. */ - if (BITS (12, 15) == 15 || BITS (16, 19) == 15) - ARMul_UndefInstr (state, instr); - /* Is access to coprocessor 0 allowed ? */ - else if (! CP_ACCESS_ALLOWED (state, CPNum)) - ARMul_UndefInstr (state, instr); - /* Special treatment for XScale coprocessors. */ - else if (state->is_XScale) - { - /* Only opcode 0 is supported. */ - if (BITS (4, 7) != 0x00) - ARMul_UndefInstr (state, instr); - /* Only coporcessor 0 is supported. */ - else if (CPNum != 0x00) - ARMul_UndefInstr (state, instr); - /* Only accumulator 0 is supported. */ - else if (BITS (0, 3) != 0x00) - ARMul_UndefInstr (state, instr); - else - { - /* XScale MAR insn. Move two registers into accumulator. */ - state->Accumulator = state->Reg[BITS (12, 15)]; - state->Accumulator += (ARMdword) state->Reg[BITS (16, 19)] << 32; - } - } - else - /* FIXME: Not sure what to do for other v5 processors. */ - ARMul_UndefInstr (state, instr); - break; - } - /* Drop through. */ - - case 0xc0: /* Store , No WriteBack , Post Dec. */ - ARMul_STC (state, instr, LHS); - break; - - case 0xc5: - if (state->is_v5) - { - /* Writes to R15 are UNPREDICATABLE. */ - if (DESTReg == 15 || LHSReg == 15) - ARMul_UndefInstr (state, instr); - /* Is access to the coprocessor allowed ? */ - else if (! CP_ACCESS_ALLOWED (state, CPNum)) - ARMul_UndefInstr (state, instr); - /* Special handling for XScale coprcoessors. */ - else if (state->is_XScale) - { - /* Only opcode 0 is supported. */ - if (BITS (4, 7) != 0x00) - ARMul_UndefInstr (state, instr); - /* Only coprocessor 0 is supported. */ - else if (CPNum != 0x00) - ARMul_UndefInstr (state, instr); - /* Only accumulator 0 is supported. */ - else if (BITS (0, 3) != 0x00) - ARMul_UndefInstr (state, instr); - else - { - /* XScale MRA insn. Move accumulator into two registers. */ - ARMword t1 = (state->Accumulator >> 32) & 255; - - if (t1 & 128) - t1 -= 256; - - state->Reg[BITS (12, 15)] = state->Accumulator; - state->Reg[BITS (16, 19)] = t1; - break; - } - } - else - /* FIXME: Not sure what to do for other v5 processors. */ - ARMul_UndefInstr (state, instr); - break; - } - /* Drop through. */ - - case 0xc1: /* Load , No WriteBack , Post Dec. */ - ARMul_LDC (state, instr, LHS); - break; - - case 0xc2: - case 0xc6: /* Store , WriteBack , Post Dec. */ - lhs = LHS; - state->Base = lhs - LSCOff; - ARMul_STC (state, instr, lhs); - break; - - case 0xc3: - case 0xc7: /* Load , WriteBack , Post Dec. */ - lhs = LHS; - state->Base = lhs - LSCOff; - ARMul_LDC (state, instr, lhs); - break; - - case 0xc8: - case 0xcc: /* Store , No WriteBack , Post Inc. */ - ARMul_STC (state, instr, LHS); - break; - - case 0xc9: - case 0xcd: /* Load , No WriteBack , Post Inc. */ - ARMul_LDC (state, instr, LHS); - break; - - case 0xca: - case 0xce: /* Store , WriteBack , Post Inc. */ - lhs = LHS; - state->Base = lhs + LSCOff; - ARMul_STC (state, instr, LHS); - break; - - case 0xcb: - case 0xcf: /* Load , WriteBack , Post Inc. */ - lhs = LHS; - state->Base = lhs + LSCOff; - ARMul_LDC (state, instr, LHS); - break; - - case 0xd0: - case 0xd4: /* Store , No WriteBack , Pre Dec. */ - ARMul_STC (state, instr, LHS - LSCOff); - break; - - case 0xd1: - case 0xd5: /* Load , No WriteBack , Pre Dec. */ - ARMul_LDC (state, instr, LHS - LSCOff); - break; - - case 0xd2: - case 0xd6: /* Store , WriteBack , Pre Dec. */ - lhs = LHS - LSCOff; - state->Base = lhs; - ARMul_STC (state, instr, lhs); - break; - - case 0xd3: - case 0xd7: /* Load , WriteBack , Pre Dec. */ - lhs = LHS - LSCOff; - state->Base = lhs; - ARMul_LDC (state, instr, lhs); - break; - - case 0xd8: - case 0xdc: /* Store , No WriteBack , Pre Inc. */ - ARMul_STC (state, instr, LHS + LSCOff); - break; - - case 0xd9: - case 0xdd: /* Load , No WriteBack , Pre Inc. */ - ARMul_LDC (state, instr, LHS + LSCOff); - break; - - case 0xda: - case 0xde: /* Store , WriteBack , Pre Inc. */ - lhs = LHS + LSCOff; - state->Base = lhs; - ARMul_STC (state, instr, lhs); - break; - - case 0xdb: - case 0xdf: /* Load , WriteBack , Pre Inc. */ - lhs = LHS + LSCOff; - state->Base = lhs; - ARMul_LDC (state, instr, lhs); - break; - - - /* Co-Processor Register Transfers (MCR) and Data Ops. */ - - case 0xe2: - if (! CP_ACCESS_ALLOWED (state, CPNum)) - { - ARMul_UndefInstr (state, instr); - break; - } - if (state->is_XScale) - switch (BITS (18, 19)) - { - case 0x0: - if (BITS (4, 11) == 1 && BITS (16, 17) == 0) - { - /* XScale MIA instruction. Signed multiplication of - two 32 bit values and addition to 40 bit accumulator. */ - long long Rm = state->Reg[MULLHSReg]; - long long Rs = state->Reg[MULACCReg]; - - if (Rm & (1 << 31)) - Rm -= 1ULL << 32; - if (Rs & (1 << 31)) - Rs -= 1ULL << 32; - state->Accumulator += Rm * Rs; - goto donext; - } - break; - - case 0x2: - if (BITS (4, 11) == 1 && BITS (16, 17) == 0) - { - /* XScale MIAPH instruction. */ - ARMword t1 = state->Reg[MULLHSReg] >> 16; - ARMword t2 = state->Reg[MULACCReg] >> 16; - ARMword t3 = state->Reg[MULLHSReg] & 0xffff; - ARMword t4 = state->Reg[MULACCReg] & 0xffff; - long long t5; - - if (t1 & (1 << 15)) - t1 -= 1 << 16; - if (t2 & (1 << 15)) - t2 -= 1 << 16; - if (t3 & (1 << 15)) - t3 -= 1 << 16; - if (t4 & (1 << 15)) - t4 -= 1 << 16; - t1 *= t2; - t5 = t1; - if (t5 & (1 << 31)) - t5 -= 1ULL << 32; - state->Accumulator += t5; - t3 *= t4; - t5 = t3; - if (t5 & (1 << 31)) - t5 -= 1ULL << 32; - state->Accumulator += t5; - goto donext; - } - break; - - case 0x3: - if (BITS (4, 11) == 1) - { - /* XScale MIAxy instruction. */ - ARMword t1; - ARMword t2; - long long t5; - - if (BIT (17)) - t1 = state->Reg[MULLHSReg] >> 16; - else - t1 = state->Reg[MULLHSReg] & 0xffff; - - if (BIT (16)) - t2 = state->Reg[MULACCReg] >> 16; - else - t2 = state->Reg[MULACCReg] & 0xffff; - - if (t1 & (1 << 15)) - t1 -= 1 << 16; - if (t2 & (1 << 15)) - t2 -= 1 << 16; - t1 *= t2; - t5 = t1; - if (t5 & (1 << 31)) - t5 -= 1ULL << 32; - state->Accumulator += t5; - goto donext; - } - break; - - default: - break; - } - /* Drop through. */ - - case 0xe0: - case 0xe4: - case 0xe6: - case 0xe8: - case 0xea: - case 0xec: - case 0xee: - if (BIT (4)) - { - /* MCR. */ - if (DESTReg == 15) - { - UNDEF_MCRPC; -#ifdef MODE32 - ARMul_MCR (state, instr, state->Reg[15] + isize); -#else - ARMul_MCR (state, instr, ECC | ER15INT | EMODE | - ((state->Reg[15] + isize) & R15PCBITS)); -#endif - } - else - ARMul_MCR (state, instr, DEST); - } - else - /* CDP Part 1. */ - ARMul_CDP (state, instr); - break; - - - /* Co-Processor Register Transfers (MRC) and Data Ops. */ - case 0xe1: - case 0xe3: - case 0xe5: - case 0xe7: - case 0xe9: - case 0xeb: - case 0xed: - case 0xef: - if (BIT (4)) - { - /* MRC */ - temp = ARMul_MRC (state, instr); - if (DESTReg == 15) - { - ASSIGNN ((temp & NBIT) != 0); - ASSIGNZ ((temp & ZBIT) != 0); - ASSIGNC ((temp & CBIT) != 0); - ASSIGNV ((temp & VBIT) != 0); - } - else - DEST = temp; - } - else - /* CDP Part 2. */ - ARMul_CDP (state, instr); - break; - - - /* SWI instruction. */ - case 0xf0: - case 0xf1: - case 0xf2: - case 0xf3: - case 0xf4: - case 0xf5: - case 0xf6: - case 0xf7: - case 0xf8: - case 0xf9: - case 0xfa: - case 0xfb: - case 0xfc: - case 0xfd: - case 0xfe: - case 0xff: - if (instr == ARMul_ABORTWORD && state->AbortAddr == pc) - { - /* A prefetch abort. */ - XScale_set_fsr_far (state, ARMul_CP15_R5_MMU_EXCPT, pc); - ARMul_Abort (state, ARMul_PrefetchAbortV); - break; - } - - if (!ARMul_OSHandleSWI (state, BITS (0, 23))) - ARMul_Abort (state, ARMul_SWIV); - - break; - } - } - -#ifdef MODET - donext: -#endif - -#ifdef NEED_UI_LOOP_HOOK - if (ui_loop_hook != NULL && ui_loop_hook_counter-- < 0) - { - ui_loop_hook_counter = UI_LOOP_POLL_INTERVAL; - ui_loop_hook (0); - } -#endif /* NEED_UI_LOOP_HOOK */ - - if (state->Emulate == ONCE) - state->Emulate = STOP; - /* If we have changed mode, allow the PC to advance before stopping. */ - else if (state->Emulate == CHANGEMODE) - continue; - else if (state->Emulate != RUN) - break; - } - while (!stop_simulator); - - state->decoded = decoded; - state->loaded = loaded; - state->pc = pc; - - return pc; -} - -/* This routine evaluates most Data Processing register RHS's with the S - bit clear. It is intended to be called from the macro DPRegRHS, which - filters the common case of an unshifted register with in line code. */ - -static ARMword -GetDPRegRHS (ARMul_State * state, ARMword instr) -{ - ARMword shamt, base; - - base = RHSReg; - if (BIT (4)) - { - /* Shift amount in a register. */ - UNDEF_Shift; - INCPC; -#ifndef MODE32 - if (base == 15) - base = ECC | ER15INT | R15PC | EMODE; - else -#endif - base = state->Reg[base]; - ARMul_Icycles (state, 1, 0L); - shamt = state->Reg[BITS (8, 11)] & 0xff; - switch ((int) BITS (5, 6)) - { - case LSL: - if (shamt == 0) - return (base); - else if (shamt >= 32) - return (0); - else - return (base << shamt); - case LSR: - if (shamt == 0) - return (base); - else if (shamt >= 32) - return (0); - else - return (base >> shamt); - case ASR: - if (shamt == 0) - return (base); - else if (shamt >= 32) - return ((ARMword) ((long int) base >> 31L)); - else - return ((ARMword) ((long int) base >> (int) shamt)); - case ROR: - shamt &= 0x1f; - if (shamt == 0) - return (base); - else - return ((base << (32 - shamt)) | (base >> shamt)); - } - } - else - { - /* Shift amount is a constant. */ -#ifndef MODE32 - if (base == 15) - base = ECC | ER15INT | R15PC | EMODE; - else -#endif - base = state->Reg[base]; - shamt = BITS (7, 11); - switch ((int) BITS (5, 6)) - { - case LSL: - return (base << shamt); - case LSR: - if (shamt == 0) - return (0); - else - return (base >> shamt); - case ASR: - if (shamt == 0) - return ((ARMword) ((long int) base >> 31L)); - else - return ((ARMword) ((long int) base >> (int) shamt)); - case ROR: - if (shamt == 0) - /* It's an RRX. */ - return ((base >> 1) | (CFLAG << 31)); - else - return ((base << (32 - shamt)) | (base >> shamt)); - } - } - - return 0; -} - -/* This routine evaluates most Logical Data Processing register RHS's - with the S bit set. It is intended to be called from the macro - DPSRegRHS, which filters the common case of an unshifted register - with in line code. */ - -static ARMword -GetDPSRegRHS (ARMul_State * state, ARMword instr) -{ - ARMword shamt, base; - - base = RHSReg; - if (BIT (4)) - { - /* Shift amount in a register. */ - UNDEF_Shift; - INCPC; -#ifndef MODE32 - if (base == 15) - base = ECC | ER15INT | R15PC | EMODE; - else -#endif - base = state->Reg[base]; - ARMul_Icycles (state, 1, 0L); - shamt = state->Reg[BITS (8, 11)] & 0xff; - switch ((int) BITS (5, 6)) - { - case LSL: - if (shamt == 0) - return (base); - else if (shamt == 32) - { - ASSIGNC (base & 1); - return (0); - } - else if (shamt > 32) - { - CLEARC; - return (0); - } - else - { - ASSIGNC ((base >> (32 - shamt)) & 1); - return (base << shamt); - } - case LSR: - if (shamt == 0) - return (base); - else if (shamt == 32) - { - ASSIGNC (base >> 31); - return (0); - } - else if (shamt > 32) - { - CLEARC; - return (0); - } - else - { - ASSIGNC ((base >> (shamt - 1)) & 1); - return (base >> shamt); - } - case ASR: - if (shamt == 0) - return (base); - else if (shamt >= 32) - { - ASSIGNC (base >> 31L); - return ((ARMword) ((long int) base >> 31L)); - } - else - { - ASSIGNC ((ARMword) ((long int) base >> (int) (shamt - 1)) & 1); - return ((ARMword) ((long int) base >> (int) shamt)); - } - case ROR: - if (shamt == 0) - return (base); - shamt &= 0x1f; - if (shamt == 0) - { - ASSIGNC (base >> 31); - return (base); - } - else - { - ASSIGNC ((base >> (shamt - 1)) & 1); - return ((base << (32 - shamt)) | (base >> shamt)); - } - } - } - else - { - /* Shift amount is a constant. */ -#ifndef MODE32 - if (base == 15) - base = ECC | ER15INT | R15PC | EMODE; - else -#endif - base = state->Reg[base]; - shamt = BITS (7, 11); - - switch ((int) BITS (5, 6)) - { - case LSL: - ASSIGNC ((base >> (32 - shamt)) & 1); - return (base << shamt); - case LSR: - if (shamt == 0) - { - ASSIGNC (base >> 31); - return (0); - } - else - { - ASSIGNC ((base >> (shamt - 1)) & 1); - return (base >> shamt); - } - case ASR: - if (shamt == 0) - { - ASSIGNC (base >> 31L); - return ((ARMword) ((long int) base >> 31L)); - } - else - { - ASSIGNC ((ARMword) ((long int) base >> (int) (shamt - 1)) & 1); - return ((ARMword) ((long int) base >> (int) shamt)); - } - case ROR: - if (shamt == 0) - { - /* It's an RRX. */ - shamt = CFLAG; - ASSIGNC (base & 1); - return ((base >> 1) | (shamt << 31)); - } - else - { - ASSIGNC ((base >> (shamt - 1)) & 1); - return ((base << (32 - shamt)) | (base >> shamt)); - } - } - } - - return 0; -} - -/* This routine handles writes to register 15 when the S bit is not set. */ - -static void -WriteR15 (ARMul_State * state, ARMword src) -{ - /* The ARM documentation states that the two least significant bits - are discarded when setting PC, except in the cases handled by - WriteR15Branch() below. It's probably an oversight: in THUMB - mode, the second least significant bit should probably not be - discarded. */ -#ifdef MODET - if (TFLAG) - src &= 0xfffffffe; - else -#endif - src &= 0xfffffffc; - -#ifdef MODE32 - state->Reg[15] = src & PCBITS; -#else - state->Reg[15] = (src & R15PCBITS) | ECC | ER15INT | EMODE; - ARMul_R15Altered (state); -#endif - - FLUSHPIPE; -} - -/* This routine handles writes to register 15 when the S bit is set. */ - -static void -WriteSR15 (ARMul_State * state, ARMword src) -{ -#ifdef MODE32 - if (state->Bank > 0) - { - state->Cpsr = state->Spsr[state->Bank]; - ARMul_CPSRAltered (state); - } -#ifdef MODET - if (TFLAG) - src &= 0xfffffffe; - else -#endif - src &= 0xfffffffc; - state->Reg[15] = src & PCBITS; -#else -#ifdef MODET - if (TFLAG) - /* ARMul_R15Altered would have to support it. */ - abort (); - else -#endif - src &= 0xfffffffc; - - if (state->Bank == USERBANK) - state->Reg[15] = (src & (CCBITS | R15PCBITS)) | ER15INT | EMODE; - else - state->Reg[15] = src; - - ARMul_R15Altered (state); -#endif - FLUSHPIPE; -} - -/* In machines capable of running in Thumb mode, BX, BLX, LDR and LDM - will switch to Thumb mode if the least significant bit is set. */ - -static void -WriteR15Branch (ARMul_State * state, ARMword src) -{ -#ifdef MODET - if (src & 1) - { - /* Thumb bit. */ - SETT; - state->Reg[15] = src & 0xfffffffe; - } - else - { - CLEART; - state->Reg[15] = src & 0xfffffffc; - } - FLUSHPIPE; -#else - WriteR15 (state, src); -#endif -} - -/* This routine evaluates most Load and Store register RHS's. It is - intended to be called from the macro LSRegRHS, which filters the - common case of an unshifted register with in line code. */ - -static ARMword -GetLSRegRHS (ARMul_State * state, ARMword instr) -{ - ARMword shamt, base; - - base = RHSReg; -#ifndef MODE32 - if (base == 15) - /* Now forbidden, but ... */ - base = ECC | ER15INT | R15PC | EMODE; - else -#endif - base = state->Reg[base]; - - shamt = BITS (7, 11); - switch ((int) BITS (5, 6)) - { - case LSL: - return (base << shamt); - case LSR: - if (shamt == 0) - return (0); - else - return (base >> shamt); - case ASR: - if (shamt == 0) - return ((ARMword) ((long int) base >> 31L)); - else - return ((ARMword) ((long int) base >> (int) shamt)); - case ROR: - if (shamt == 0) - /* It's an RRX. */ - return ((base >> 1) | (CFLAG << 31)); - else - return ((base << (32 - shamt)) | (base >> shamt)); - default: - break; - } - return 0; -} - -/* This routine evaluates the ARM7T halfword and signed transfer RHS's. */ - -static ARMword -GetLS7RHS (ARMul_State * state, ARMword instr) -{ - if (BIT (22) == 0) - { - /* Register. */ -#ifndef MODE32 - if (RHSReg == 15) - /* Now forbidden, but ... */ - return ECC | ER15INT | R15PC | EMODE; -#endif - return state->Reg[RHSReg]; - } - - /* Immediate. */ - return BITS (0, 3) | (BITS (8, 11) << 4); -} - -/* This function does the work of loading a word for a LDR instruction. */ - -static unsigned -LoadWord (ARMul_State * state, ARMword instr, ARMword address) -{ - ARMword dest; - - BUSUSEDINCPCS; -#ifndef MODE32 - if (ADDREXCEPT (address)) - INTERNALABORT (address); -#endif - - dest = ARMul_LoadWordN (state, address); - - if (state->Aborted) - { - TAKEABORT; - return state->lateabtSig; - } - if (address & 3) - dest = ARMul_Align (state, address, dest); - WRITEDESTB (dest); - ARMul_Icycles (state, 1, 0L); - - return (DESTReg != LHSReg); -} - -#ifdef MODET -/* This function does the work of loading a halfword. */ - -static unsigned -LoadHalfWord (ARMul_State * state, ARMword instr, ARMword address, - int signextend) -{ - ARMword dest; - - BUSUSEDINCPCS; -#ifndef MODE32 - if (ADDREXCEPT (address)) - INTERNALABORT (address); -#endif - dest = ARMul_LoadHalfWord (state, address); - if (state->Aborted) - { - TAKEABORT; - return state->lateabtSig; - } - UNDEF_LSRBPC; - if (signextend) - if (dest & 1 << (16 - 1)) - dest = (dest & ((1 << 16) - 1)) - (1 << 16); - - WRITEDEST (dest); - ARMul_Icycles (state, 1, 0L); - return (DESTReg != LHSReg); -} - -#endif /* MODET */ - -/* This function does the work of loading a byte for a LDRB instruction. */ - -static unsigned -LoadByte (ARMul_State * state, ARMword instr, ARMword address, int signextend) -{ - ARMword dest; - - BUSUSEDINCPCS; -#ifndef MODE32 - if (ADDREXCEPT (address)) - INTERNALABORT (address); -#endif - dest = ARMul_LoadByte (state, address); - if (state->Aborted) - { - TAKEABORT; - return state->lateabtSig; - } - UNDEF_LSRBPC; - if (signextend) - if (dest & 1 << (8 - 1)) - dest = (dest & ((1 << 8) - 1)) - (1 << 8); - - WRITEDEST (dest); - ARMul_Icycles (state, 1, 0L); - - return (DESTReg != LHSReg); -} - -/* This function does the work of loading two words for a LDRD instruction. */ - -static void -Handle_Load_Double (ARMul_State * state, ARMword instr) -{ - ARMword dest_reg; - ARMword addr_reg; - ARMword write_back = BIT (21); - ARMword immediate = BIT (22); - ARMword add_to_base = BIT (23); - ARMword pre_indexed = BIT (24); - ARMword offset; - ARMword addr; - ARMword sum; - ARMword base; - ARMword value1; - ARMword value2; - - BUSUSEDINCPCS; - - /* If the writeback bit is set, the pre-index bit must be clear. */ - if (write_back && ! pre_indexed) - { - ARMul_UndefInstr (state, instr); - return; - } - - /* Extract the base address register. */ - addr_reg = LHSReg; - - /* Extract the destination register and check it. */ - dest_reg = DESTReg; - - /* Destination register must be even. */ - if ((dest_reg & 1) - /* Destination register cannot be LR. */ - || (dest_reg == 14)) - { - ARMul_UndefInstr (state, instr); - return; - } - - /* Compute the base address. */ - base = state->Reg[addr_reg]; - - /* Compute the offset. */ - offset = immediate ? ((BITS (8, 11) << 4) | BITS (0, 3)) : state->Reg[RHSReg]; - - /* Compute the sum of the two. */ - if (add_to_base) - sum = base + offset; - else - sum = base - offset; - - /* If this is a pre-indexed mode use the sum. */ - if (pre_indexed) - addr = sum; - else - addr = base; - - /* The address must be aligned on a 8 byte boundary. */ - if (addr & 0x7) - { -#ifdef ABORTS - ARMul_DATAABORT (addr); -#else - ARMul_UndefInstr (state, instr); -#endif - return; - } - - /* For pre indexed or post indexed addressing modes, - check that the destination registers do not overlap - the address registers. */ - if ((! pre_indexed || write_back) - && ( addr_reg == dest_reg - || addr_reg == dest_reg + 1)) - { - ARMul_UndefInstr (state, instr); - return; - } - - /* Load the words. */ - value1 = ARMul_LoadWordN (state, addr); - value2 = ARMul_LoadWordN (state, addr + 4); - - /* Check for data aborts. */ - if (state->Aborted) - { - TAKEABORT; - return; - } - - ARMul_Icycles (state, 2, 0L); - - /* Store the values. */ - state->Reg[dest_reg] = value1; - state->Reg[dest_reg + 1] = value2; - - /* Do the post addressing and writeback. */ - if (! pre_indexed) - addr = sum; - - if (! pre_indexed || write_back) - state->Reg[addr_reg] = addr; -} - -/* This function does the work of storing two words for a STRD instruction. */ - -static void -Handle_Store_Double (ARMul_State * state, ARMword instr) -{ - ARMword src_reg; - ARMword addr_reg; - ARMword write_back = BIT (21); - ARMword immediate = BIT (22); - ARMword add_to_base = BIT (23); - ARMword pre_indexed = BIT (24); - ARMword offset; - ARMword addr; - ARMword sum; - ARMword base; - - BUSUSEDINCPCS; - - /* If the writeback bit is set, the pre-index bit must be clear. */ - if (write_back && ! pre_indexed) - { - ARMul_UndefInstr (state, instr); - return; - } - - /* Extract the base address register. */ - addr_reg = LHSReg; - - /* Base register cannot be PC. */ - if (addr_reg == 15) - { - ARMul_UndefInstr (state, instr); - return; - } - - /* Extract the source register. */ - src_reg = DESTReg; - - /* Source register must be even. */ - if (src_reg & 1) - { - ARMul_UndefInstr (state, instr); - return; - } - - /* Compute the base address. */ - base = state->Reg[addr_reg]; - - /* Compute the offset. */ - offset = immediate ? ((BITS (8, 11) << 4) | BITS (0, 3)) : state->Reg[RHSReg]; - - /* Compute the sum of the two. */ - if (add_to_base) - sum = base + offset; - else - sum = base - offset; - - /* If this is a pre-indexed mode use the sum. */ - if (pre_indexed) - addr = sum; - else - addr = base; - - /* The address must be aligned on a 8 byte boundary. */ - if (addr & 0x7) - { -#ifdef ABORTS - ARMul_DATAABORT (addr); -#else - ARMul_UndefInstr (state, instr); -#endif - return; - } - - /* For pre indexed or post indexed addressing modes, - check that the destination registers do not overlap - the address registers. */ - if ((! pre_indexed || write_back) - && ( addr_reg == src_reg - || addr_reg == src_reg + 1)) - { - ARMul_UndefInstr (state, instr); - return; - } - - /* Load the words. */ - ARMul_StoreWordN (state, addr, state->Reg[src_reg]); - ARMul_StoreWordN (state, addr + 4, state->Reg[src_reg + 1]); - - if (state->Aborted) - { - TAKEABORT; - return; - } - - /* Do the post addressing and writeback. */ - if (! pre_indexed) - addr = sum; - - if (! pre_indexed || write_back) - state->Reg[addr_reg] = addr; -} - -/* This function does the work of storing a word from a STR instruction. */ - -static unsigned -StoreWord (ARMul_State * state, ARMword instr, ARMword address) -{ - BUSUSEDINCPCN; -#ifndef MODE32 - if (DESTReg == 15) - state->Reg[15] = ECC | ER15INT | R15PC | EMODE; -#endif -#ifdef MODE32 - ARMul_StoreWordN (state, address, DEST); -#else - if (VECTORACCESS (address) || ADDREXCEPT (address)) - { - INTERNALABORT (address); - (void) ARMul_LoadWordN (state, address); - } - else - ARMul_StoreWordN (state, address, DEST); -#endif - if (state->Aborted) - { - TAKEABORT; - return state->lateabtSig; - } - return TRUE; -} - -#ifdef MODET -/* This function does the work of storing a byte for a STRH instruction. */ - -static unsigned -StoreHalfWord (ARMul_State * state, ARMword instr, ARMword address) -{ - BUSUSEDINCPCN; - -#ifndef MODE32 - if (DESTReg == 15) - state->Reg[15] = ECC | ER15INT | R15PC | EMODE; -#endif - -#ifdef MODE32 - ARMul_StoreHalfWord (state, address, DEST); -#else - if (VECTORACCESS (address) || ADDREXCEPT (address)) - { - INTERNALABORT (address); - (void) ARMul_LoadHalfWord (state, address); - } - else - ARMul_StoreHalfWord (state, address, DEST); -#endif - - if (state->Aborted) - { - TAKEABORT; - return state->lateabtSig; - } - return TRUE; -} - -#endif /* MODET */ - -/* This function does the work of storing a byte for a STRB instruction. */ - -static unsigned -StoreByte (ARMul_State * state, ARMword instr, ARMword address) -{ - BUSUSEDINCPCN; -#ifndef MODE32 - if (DESTReg == 15) - state->Reg[15] = ECC | ER15INT | R15PC | EMODE; -#endif -#ifdef MODE32 - ARMul_StoreByte (state, address, DEST); -#else - if (VECTORACCESS (address) || ADDREXCEPT (address)) - { - INTERNALABORT (address); - (void) ARMul_LoadByte (state, address); - } - else - ARMul_StoreByte (state, address, DEST); -#endif - if (state->Aborted) - { - TAKEABORT; - return state->lateabtSig; - } - UNDEF_LSRBPC; - return TRUE; -} - -/* This function does the work of loading the registers listed in an LDM - instruction, when the S bit is clear. The code here is always increment - after, it's up to the caller to get the input address correct and to - handle base register modification. */ - -static void -LoadMult (ARMul_State * state, ARMword instr, ARMword address, ARMword WBBase) -{ - ARMword dest, temp; - - UNDEF_LSMNoRegs; - UNDEF_LSMPCBase; - UNDEF_LSMBaseInListWb; - BUSUSEDINCPCS; -#ifndef MODE32 - if (ADDREXCEPT (address)) - INTERNALABORT (address); -#endif - if (BIT (21) && LHSReg != 15) - LSBase = WBBase; - - /* N cycle first. */ - for (temp = 0; !BIT (temp); temp++) - ; - - dest = ARMul_LoadWordN (state, address); - - if (!state->abortSig && !state->Aborted) - state->Reg[temp++] = dest; - else if (!state->Aborted) - { - XScale_set_fsr_far (state, ARMul_CP15_R5_ST_ALIGN, address); - state->Aborted = ARMul_DataAbortV; - } - - /* S cycles from here on. */ - for (; temp < 16; temp ++) - if (BIT (temp)) - { - /* Load this register. */ - address += 4; - dest = ARMul_LoadWordS (state, address); - - if (!state->abortSig && !state->Aborted) - state->Reg[temp] = dest; - else if (!state->Aborted) - { - XScale_set_fsr_far (state, ARMul_CP15_R5_ST_ALIGN, address); - state->Aborted = ARMul_DataAbortV; - } - } - - if (BIT (15) && !state->Aborted) - /* PC is in the reg list. */ - WriteR15Branch (state, PC); - - /* To write back the final register. */ - ARMul_Icycles (state, 1, 0L); - - if (state->Aborted) - { - if (BIT (21) && LHSReg != 15) - LSBase = WBBase; - TAKEABORT; - } -} - -/* This function does the work of loading the registers listed in an LDM - instruction, when the S bit is set. The code here is always increment - after, it's up to the caller to get the input address correct and to - handle base register modification. */ - -static void -LoadSMult (ARMul_State * state, - ARMword instr, - ARMword address, - ARMword WBBase) -{ - ARMword dest, temp; - - UNDEF_LSMNoRegs; - UNDEF_LSMPCBase; - UNDEF_LSMBaseInListWb; - - BUSUSEDINCPCS; - -#ifndef MODE32 - if (ADDREXCEPT (address)) - INTERNALABORT (address); -#endif - - if (BIT (21) && LHSReg != 15) - LSBase = WBBase; - - if (!BIT (15) && state->Bank != USERBANK) - { - /* Temporary reg bank switch. */ - (void) ARMul_SwitchMode (state, state->Mode, USER26MODE); - UNDEF_LSMUserBankWb; - } - - /* N cycle first. */ - for (temp = 0; !BIT (temp); temp ++) - ; - - dest = ARMul_LoadWordN (state, address); - - if (!state->abortSig) - state->Reg[temp++] = dest; - else if (!state->Aborted) - { - XScale_set_fsr_far (state, ARMul_CP15_R5_ST_ALIGN, address); - state->Aborted = ARMul_DataAbortV; - } - - /* S cycles from here on. */ - for (; temp < 16; temp++) - if (BIT (temp)) - { - /* Load this register. */ - address += 4; - dest = ARMul_LoadWordS (state, address); - - if (!state->abortSig && !state->Aborted) - state->Reg[temp] = dest; - else if (!state->Aborted) - { - XScale_set_fsr_far (state, ARMul_CP15_R5_ST_ALIGN, address); - state->Aborted = ARMul_DataAbortV; - } - } - - if (BIT (15) && !state->Aborted) - { - /* PC is in the reg list. */ -#ifdef MODE32 - if (state->Mode != USER26MODE && state->Mode != USER32MODE) - { - state->Cpsr = GETSPSR (state->Bank); - ARMul_CPSRAltered (state); - } - - WriteR15 (state, PC); -#else - if (state->Mode == USER26MODE || state->Mode == USER32MODE) - { - /* Protect bits in user mode. */ - ASSIGNN ((state->Reg[15] & NBIT) != 0); - ASSIGNZ ((state->Reg[15] & ZBIT) != 0); - ASSIGNC ((state->Reg[15] & CBIT) != 0); - ASSIGNV ((state->Reg[15] & VBIT) != 0); - } - else - ARMul_R15Altered (state); - - FLUSHPIPE; -#endif - } - - if (!BIT (15) && state->Mode != USER26MODE && state->Mode != USER32MODE) - /* Restore the correct bank. */ - (void) ARMul_SwitchMode (state, USER26MODE, state->Mode); - - /* To write back the final register. */ - ARMul_Icycles (state, 1, 0L); - - if (state->Aborted) - { - if (BIT (21) && LHSReg != 15) - LSBase = WBBase; - - TAKEABORT; - } -} - -/* This function does the work of storing the registers listed in an STM - instruction, when the S bit is clear. The code here is always increment - after, it's up to the caller to get the input address correct and to - handle base register modification. */ - -static void -StoreMult (ARMul_State * state, - ARMword instr, - ARMword address, - ARMword WBBase) -{ - ARMword temp; - - UNDEF_LSMNoRegs; - UNDEF_LSMPCBase; - UNDEF_LSMBaseInListWb; - - if (!TFLAG) - /* N-cycle, increment the PC and update the NextInstr state. */ - BUSUSEDINCPCN; - -#ifndef MODE32 - if (VECTORACCESS (address) || ADDREXCEPT (address)) - INTERNALABORT (address); - - if (BIT (15)) - PATCHR15; -#endif - - /* N cycle first. */ - for (temp = 0; !BIT (temp); temp ++) - ; - -#ifdef MODE32 - ARMul_StoreWordN (state, address, state->Reg[temp++]); -#else - if (state->Aborted) - { - (void) ARMul_LoadWordN (state, address); - - /* Fake the Stores as Loads. */ - for (; temp < 16; temp++) - if (BIT (temp)) - { - /* Save this register. */ - address += 4; - (void) ARMul_LoadWordS (state, address); - } - - if (BIT (21) && LHSReg != 15) - LSBase = WBBase; - TAKEABORT; - return; - } - else - ARMul_StoreWordN (state, address, state->Reg[temp++]); -#endif - - if (state->abortSig && !state->Aborted) - { - XScale_set_fsr_far (state, ARMul_CP15_R5_ST_ALIGN, address); - state->Aborted = ARMul_DataAbortV; - } - - if (BIT (21) && LHSReg != 15) - LSBase = WBBase; - - /* S cycles from here on. */ - for (; temp < 16; temp ++) - if (BIT (temp)) - { - /* Save this register. */ - address += 4; - - ARMul_StoreWordS (state, address, state->Reg[temp]); - - if (state->abortSig && !state->Aborted) - { - XScale_set_fsr_far (state, ARMul_CP15_R5_ST_ALIGN, address); - state->Aborted = ARMul_DataAbortV; - } - } - - if (state->Aborted) - TAKEABORT; -} - -/* This function does the work of storing the registers listed in an STM - instruction when the S bit is set. The code here is always increment - after, it's up to the caller to get the input address correct and to - handle base register modification. */ - -static void -StoreSMult (ARMul_State * state, - ARMword instr, - ARMword address, - ARMword WBBase) -{ - ARMword temp; - - UNDEF_LSMNoRegs; - UNDEF_LSMPCBase; - UNDEF_LSMBaseInListWb; - - BUSUSEDINCPCN; - -#ifndef MODE32 - if (VECTORACCESS (address) || ADDREXCEPT (address)) - INTERNALABORT (address); - - if (BIT (15)) - PATCHR15; -#endif - - if (state->Bank != USERBANK) - { - /* Force User Bank. */ - (void) ARMul_SwitchMode (state, state->Mode, USER26MODE); - UNDEF_LSMUserBankWb; - } - - for (temp = 0; !BIT (temp); temp++) - ; /* N cycle first. */ - -#ifdef MODE32 - ARMul_StoreWordN (state, address, state->Reg[temp++]); -#else - if (state->Aborted) - { - (void) ARMul_LoadWordN (state, address); - - for (; temp < 16; temp++) - /* Fake the Stores as Loads. */ - if (BIT (temp)) - { - /* Save this register. */ - address += 4; - - (void) ARMul_LoadWordS (state, address); - } - - if (BIT (21) && LHSReg != 15) - LSBase = WBBase; - - TAKEABORT; - return; - } - else - ARMul_StoreWordN (state, address, state->Reg[temp++]); -#endif - - if (state->abortSig && !state->Aborted) - { - XScale_set_fsr_far (state, ARMul_CP15_R5_ST_ALIGN, address); - state->Aborted = ARMul_DataAbortV; - } - - /* S cycles from here on. */ - for (; temp < 16; temp++) - if (BIT (temp)) - { - /* Save this register. */ - address += 4; - - ARMul_StoreWordS (state, address, state->Reg[temp]); - - if (state->abortSig && !state->Aborted) - { - XScale_set_fsr_far (state, ARMul_CP15_R5_ST_ALIGN, address); - state->Aborted = ARMul_DataAbortV; - } - } - - if (state->Mode != USER26MODE && state->Mode != USER32MODE) - /* Restore the correct bank. */ - (void) ARMul_SwitchMode (state, USER26MODE, state->Mode); - - if (BIT (21) && LHSReg != 15) - LSBase = WBBase; - - if (state->Aborted) - TAKEABORT; -} - -/* This function does the work of adding two 32bit values - together, and calculating if a carry has occurred. */ - -static ARMword -Add32 (ARMword a1, ARMword a2, int *carry) -{ - ARMword result = (a1 + a2); - unsigned int uresult = (unsigned int) result; - unsigned int ua1 = (unsigned int) a1; - - /* If (result == RdLo) and (state->Reg[nRdLo] == 0), - or (result > RdLo) then we have no carry. */ - if ((uresult == ua1) ? (a2 != 0) : (uresult < ua1)) - *carry = 1; - else - *carry = 0; - - return result; -} - -/* This function does the work of multiplying - two 32bit values to give a 64bit result. */ - -static unsigned -Multiply64 (ARMul_State * state, ARMword instr, int msigned, int scc) -{ - /* Operand register numbers. */ - int nRdHi, nRdLo, nRs, nRm; - ARMword RdHi = 0, RdLo = 0, Rm; - /* Cycle count. */ - int scount; - - nRdHi = BITS (16, 19); - nRdLo = BITS (12, 15); - nRs = BITS (8, 11); - nRm = BITS (0, 3); - - /* Needed to calculate the cycle count. */ - Rm = state->Reg[nRm]; - - /* Check for illegal operand combinations first. */ - if ( nRdHi != 15 - && nRdLo != 15 - && nRs != 15 - && nRm != 15 - && nRdHi != nRdLo - && nRdHi != nRm - && nRdLo != nRm) - { - /* Intermediate results. */ - ARMword lo, mid1, mid2, hi; - int carry; - ARMword Rs = state->Reg[nRs]; - int sign = 0; - - if (msigned) - { - /* Compute sign of result and adjust operands if necessary. */ - sign = (Rm ^ Rs) & 0x80000000; - - if (((signed long) Rm) < 0) - Rm = -Rm; - - if (((signed long) Rs) < 0) - Rs = -Rs; - } - - /* We can split the 32x32 into four 16x16 operations. This - ensures that we do not lose precision on 32bit only hosts. */ - lo = ((Rs & 0xFFFF) * (Rm & 0xFFFF)); - mid1 = ((Rs & 0xFFFF) * ((Rm >> 16) & 0xFFFF)); - mid2 = (((Rs >> 16) & 0xFFFF) * (Rm & 0xFFFF)); - hi = (((Rs >> 16) & 0xFFFF) * ((Rm >> 16) & 0xFFFF)); - - /* We now need to add all of these results together, taking - care to propogate the carries from the additions. */ - RdLo = Add32 (lo, (mid1 << 16), &carry); - RdHi = carry; - RdLo = Add32 (RdLo, (mid2 << 16), &carry); - RdHi += - (carry + ((mid1 >> 16) & 0xFFFF) + ((mid2 >> 16) & 0xFFFF) + hi); - - if (sign) - { - /* Negate result if necessary. */ - RdLo = ~RdLo; - RdHi = ~RdHi; - if (RdLo == 0xFFFFFFFF) - { - RdLo = 0; - RdHi += 1; - } - else - RdLo += 1; - } - - state->Reg[nRdLo] = RdLo; - state->Reg[nRdHi] = RdHi; - } - else - fprintf (stderr, "sim: MULTIPLY64 - INVALID ARGUMENTS\n"); - - if (scc) - /* Ensure that both RdHi and RdLo are used to compute Z, - but don't let RdLo's sign bit make it to N. */ - ARMul_NegZero (state, RdHi | (RdLo >> 16) | (RdLo & 0xFFFF)); - - /* The cycle count depends on whether the instruction is a signed or - unsigned multiply, and what bits are clear in the multiplier. */ - if (msigned && (Rm & ((unsigned) 1 << 31))) - /* Invert the bits to make the check against zero. */ - Rm = ~Rm; - - if ((Rm & 0xFFFFFF00) == 0) - scount = 1; - else if ((Rm & 0xFFFF0000) == 0) - scount = 2; - else if ((Rm & 0xFF000000) == 0) - scount = 3; - else - scount = 4; - - return 2 + scount; -} - -/* This function does the work of multiplying two 32bit - values and adding a 64bit value to give a 64bit result. */ - -static unsigned -MultiplyAdd64 (ARMul_State * state, ARMword instr, int msigned, int scc) -{ - unsigned scount; - ARMword RdLo, RdHi; - int nRdHi, nRdLo; - int carry = 0; - - nRdHi = BITS (16, 19); - nRdLo = BITS (12, 15); - - RdHi = state->Reg[nRdHi]; - RdLo = state->Reg[nRdLo]; - - scount = Multiply64 (state, instr, msigned, LDEFAULT); - - RdLo = Add32 (RdLo, state->Reg[nRdLo], &carry); - RdHi = (RdHi + state->Reg[nRdHi]) + carry; - - state->Reg[nRdLo] = RdLo; - state->Reg[nRdHi] = RdHi; - - if (scc) - /* Ensure that both RdHi and RdLo are used to compute Z, - but don't let RdLo's sign bit make it to N. */ - ARMul_NegZero (state, RdHi | (RdLo >> 16) | (RdLo & 0xFFFF)); - - /* Extra cycle for addition. */ - return scount + 1; -} |