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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/mips/interp.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/mips/interp.c')
-rw-r--r-- | sim/mips/interp.c | 2404 |
1 files changed, 0 insertions, 2404 deletions
diff --git a/sim/mips/interp.c b/sim/mips/interp.c deleted file mode 100644 index b2828e0..0000000 --- a/sim/mips/interp.c +++ /dev/null @@ -1,2404 +0,0 @@ -/*> interp.c <*/ -/* Simulator for the MIPS architecture. - - This file is part of the MIPS sim - - THIS SOFTWARE IS NOT COPYRIGHTED - - Cygnus offers the following for use in the public domain. Cygnus - makes no warranty with regard to the software or it's performance - and the user accepts the software "AS IS" with all faults. - - CYGNUS DISCLAIMS ANY WARRANTIES, EXPRESS OR IMPLIED, WITH REGARD TO - THIS SOFTWARE INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF - MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. - -NOTEs: - -The IDT monitor (found on the VR4300 board), seems to lie about -register contents. It seems to treat the registers as sign-extended -32-bit values. This cause *REAL* problems when single-stepping 64-bit -code on the hardware. - -*/ - -/* The TRACE manifests enable the provision of extra features. If they - are not defined then a simpler (quicker) simulator is constructed - without the required run-time checks, etc. */ -#if 1 /* 0 to allow user build selection, 1 to force inclusion */ -#define TRACE (1) -#endif - -#include "bfd.h" -#include "sim-main.h" -#include "sim-utils.h" -#include "sim-options.h" -#include "sim-assert.h" -#include "sim-hw.h" - -#include "itable.h" - - -#include "config.h" - -#include <stdio.h> -#include <stdarg.h> -#include <ansidecl.h> -#include <ctype.h> -#include <limits.h> -#include <math.h> -#ifdef HAVE_STDLIB_H -#include <stdlib.h> -#endif -#ifdef HAVE_STRING_H -#include <string.h> -#else -#ifdef HAVE_STRINGS_H -#include <strings.h> -#endif -#endif - -#include "getopt.h" -#include "libiberty.h" -#include "bfd.h" -#include "gdb/callback.h" /* GDB simulator callback interface */ -#include "gdb/remote-sim.h" /* GDB simulator interface */ - -#include "sysdep.h" - -#ifndef PARAMS -#define PARAMS(x) -#endif - -char* pr_addr PARAMS ((SIM_ADDR addr)); -char* pr_uword64 PARAMS ((uword64 addr)); - - -/* Within interp.c we refer to the sim_state and sim_cpu directly. */ -#define CPU cpu -#define SD sd - - -/* The following reserved instruction value is used when a simulator - trap is required. NOTE: Care must be taken, since this value may be - used in later revisions of the MIPS ISA. */ - -#define RSVD_INSTRUCTION (0x00000005) -#define RSVD_INSTRUCTION_MASK (0xFC00003F) - -#define RSVD_INSTRUCTION_ARG_SHIFT 6 -#define RSVD_INSTRUCTION_ARG_MASK 0xFFFFF - - -/* Bits in the Debug register */ -#define Debug_DBD 0x80000000 /* Debug Branch Delay */ -#define Debug_DM 0x40000000 /* Debug Mode */ -#define Debug_DBp 0x00000002 /* Debug Breakpoint indicator */ - -/*---------------------------------------------------------------------------*/ -/*-- GDB simulator interface ------------------------------------------------*/ -/*---------------------------------------------------------------------------*/ - -static void ColdReset PARAMS((SIM_DESC sd)); - -/*---------------------------------------------------------------------------*/ - - - -#define DELAYSLOT() {\ - if (STATE & simDELAYSLOT)\ - sim_io_eprintf(sd,"Delay slot already activated (branch in delay slot?)\n");\ - STATE |= simDELAYSLOT;\ - } - -#define JALDELAYSLOT() {\ - DELAYSLOT ();\ - STATE |= simJALDELAYSLOT;\ - } - -#define NULLIFY() {\ - STATE &= ~simDELAYSLOT;\ - STATE |= simSKIPNEXT;\ - } - -#define CANCELDELAYSLOT() {\ - DSSTATE = 0;\ - STATE &= ~(simDELAYSLOT | simJALDELAYSLOT);\ - } - -#define INDELAYSLOT() ((STATE & simDELAYSLOT) != 0) -#define INJALDELAYSLOT() ((STATE & simJALDELAYSLOT) != 0) - -/* Note that the monitor code essentially assumes this layout of memory. - If you change these, change the monitor code, too. */ -#define K0BASE (0x80000000) -#define K0SIZE (0x20000000) -#define K1BASE (0xA0000000) -#define K1SIZE (0x20000000) - -/* Simple run-time monitor support. - - We emulate the monitor by placing magic reserved instructions at - the monitor's entry points; when we hit these instructions, instead - of raising an exception (as we would normally), we look at the - instruction and perform the appropriate monitory operation. - - `*_monitor_base' are the physical addresses at which the corresponding - monitor vectors are located. `0' means none. By default, - install all three. - The RSVD_INSTRUCTION... macros specify the magic instructions we - use at the monitor entry points. */ -static int firmware_option_p = 0; -static SIM_ADDR idt_monitor_base = 0xBFC00000; -static SIM_ADDR pmon_monitor_base = 0xBFC00500; -static SIM_ADDR lsipmon_monitor_base = 0xBFC00200; - -static SIM_RC sim_firmware_command (SIM_DESC sd, char* arg); - - -#define MEM_SIZE (2 << 20) - - -#if defined(TRACE) -static char *tracefile = "trace.din"; /* default filename for trace log */ -FILE *tracefh = NULL; -static void open_trace PARAMS((SIM_DESC sd)); -#endif /* TRACE */ - -static const char * get_insn_name (sim_cpu *, int); - -/* simulation target board. NULL=canonical */ -static char* board = NULL; - - -static DECLARE_OPTION_HANDLER (mips_option_handler); - -enum { - OPTION_DINERO_TRACE = OPTION_START, - OPTION_DINERO_FILE, - OPTION_FIRMWARE, - OPTION_BOARD -}; - - -static SIM_RC -mips_option_handler (sd, cpu, opt, arg, is_command) - SIM_DESC sd; - sim_cpu *cpu; - int opt; - char *arg; - int is_command; -{ - int cpu_nr; - switch (opt) - { - case OPTION_DINERO_TRACE: /* ??? */ -#if defined(TRACE) - /* Eventually the simTRACE flag could be treated as a toggle, to - allow external control of the program points being traced - (i.e. only from main onwards, excluding the run-time setup, - etc.). */ - for (cpu_nr = 0; cpu_nr < MAX_NR_PROCESSORS; cpu_nr++) - { - sim_cpu *cpu = STATE_CPU (sd, cpu_nr); - if (arg == NULL) - STATE |= simTRACE; - else if (strcmp (arg, "yes") == 0) - STATE |= simTRACE; - else if (strcmp (arg, "no") == 0) - STATE &= ~simTRACE; - else if (strcmp (arg, "on") == 0) - STATE |= simTRACE; - else if (strcmp (arg, "off") == 0) - STATE &= ~simTRACE; - else - { - fprintf (stderr, "Unrecognized dinero-trace option `%s'\n", arg); - return SIM_RC_FAIL; - } - } - return SIM_RC_OK; -#else /* !TRACE */ - fprintf(stderr,"\ -Simulator constructed without dinero tracing support (for performance).\n\ -Re-compile simulator with \"-DTRACE\" to enable this option.\n"); - return SIM_RC_FAIL; -#endif /* !TRACE */ - - case OPTION_DINERO_FILE: -#if defined(TRACE) - if (optarg != NULL) { - char *tmp; - tmp = (char *)malloc(strlen(optarg) + 1); - if (tmp == NULL) - { - sim_io_printf(sd,"Failed to allocate buffer for tracefile name \"%s\"\n",optarg); - return SIM_RC_FAIL; - } - else { - strcpy(tmp,optarg); - tracefile = tmp; - sim_io_printf(sd,"Placing trace information into file \"%s\"\n",tracefile); - } - } -#endif /* TRACE */ - return SIM_RC_OK; - - case OPTION_FIRMWARE: - return sim_firmware_command (sd, arg); - - case OPTION_BOARD: - { - if (arg) - { - board = zalloc(strlen(arg) + 1); - strcpy(board, arg); - } - return SIM_RC_OK; - } - } - - return SIM_RC_OK; -} - - -static const OPTION mips_options[] = -{ - { {"dinero-trace", optional_argument, NULL, OPTION_DINERO_TRACE}, - '\0', "on|off", "Enable dinero tracing", - mips_option_handler }, - { {"dinero-file", required_argument, NULL, OPTION_DINERO_FILE}, - '\0', "FILE", "Write dinero trace to FILE", - mips_option_handler }, - { {"firmware", required_argument, NULL, OPTION_FIRMWARE}, - '\0', "[idt|pmon|lsipmon|none][@ADDRESS]", "Emulate ROM monitor", - mips_option_handler }, - { {"board", required_argument, NULL, OPTION_BOARD}, - '\0', "none" /* rely on compile-time string concatenation for other options */ - -#define BOARD_JMR3904 "jmr3904" - "|" BOARD_JMR3904 -#define BOARD_JMR3904_PAL "jmr3904pal" - "|" BOARD_JMR3904_PAL -#define BOARD_JMR3904_DEBUG "jmr3904debug" - "|" BOARD_JMR3904_DEBUG -#define BOARD_BSP "bsp" - "|" BOARD_BSP - - , "Customize simulation for a particular board.", mips_option_handler }, - - { {NULL, no_argument, NULL, 0}, '\0', NULL, NULL, NULL } -}; - - -int interrupt_pending; - -void -interrupt_event (SIM_DESC sd, void *data) -{ - sim_cpu *cpu = STATE_CPU (sd, 0); /* FIXME */ - address_word cia = CIA_GET (cpu); - if (SR & status_IE) - { - interrupt_pending = 0; - SignalExceptionInterrupt (1); /* interrupt "1" */ - } - else if (!interrupt_pending) - sim_events_schedule (sd, 1, interrupt_event, data); -} - - -/*---------------------------------------------------------------------------*/ -/*-- Device registration hook -----------------------------------------------*/ -/*---------------------------------------------------------------------------*/ -static void device_init(SIM_DESC sd) { -#ifdef DEVICE_INIT - extern void register_devices(SIM_DESC); - register_devices(sd); -#endif -} - -/*---------------------------------------------------------------------------*/ -/*-- GDB simulator interface ------------------------------------------------*/ -/*---------------------------------------------------------------------------*/ - -SIM_DESC -sim_open (kind, cb, abfd, argv) - SIM_OPEN_KIND kind; - host_callback *cb; - struct _bfd *abfd; - char **argv; -{ - SIM_DESC sd = sim_state_alloc (kind, cb); - sim_cpu *cpu = STATE_CPU (sd, 0); /* FIXME */ - - SIM_ASSERT (STATE_MAGIC (sd) == SIM_MAGIC_NUMBER); - - /* FIXME: watchpoints code shouldn't need this */ - STATE_WATCHPOINTS (sd)->pc = &(PC); - STATE_WATCHPOINTS (sd)->sizeof_pc = sizeof (PC); - STATE_WATCHPOINTS (sd)->interrupt_handler = interrupt_event; - - /* Initialize the mechanism for doing insn profiling. */ - CPU_INSN_NAME (cpu) = get_insn_name; - CPU_MAX_INSNS (cpu) = nr_itable_entries; - - STATE = 0; - - if (sim_pre_argv_init (sd, argv[0]) != SIM_RC_OK) - return 0; - sim_add_option_table (sd, NULL, mips_options); - - - /* getopt will print the error message so we just have to exit if this fails. - FIXME: Hmmm... in the case of gdb we need getopt to call - print_filtered. */ - if (sim_parse_args (sd, argv) != SIM_RC_OK) - { - /* Uninstall the modules to avoid memory leaks, - file descriptor leaks, etc. */ - sim_module_uninstall (sd); - return 0; - } - - /* handle board-specific memory maps */ - if (board == NULL) - { - /* Allocate core managed memory */ - - - /* For compatibility with the old code - under this (at level one) - are the kernel spaces K0 & K1. Both of these map to a single - smaller sub region */ - sim_do_command(sd," memory region 0x7fff8000,0x8000") ; /* MTZ- 32 k stack */ - sim_do_commandf (sd, "memory alias 0x%lx@1,0x%lx%%0x%lx,0x%0x", - K1BASE, K0SIZE, - MEM_SIZE, /* actual size */ - K0BASE); - - device_init(sd); - } - else if (board != NULL - && (strcmp(board, BOARD_BSP) == 0)) - { - int i; - - STATE_ENVIRONMENT (sd) = OPERATING_ENVIRONMENT; - - /* ROM: 0x9FC0_0000 - 0x9FFF_FFFF and 0xBFC0_0000 - 0xBFFF_FFFF */ - sim_do_commandf (sd, "memory alias 0x%lx@1,0x%lx,0x%0x", - 0x9FC00000, - 4 * 1024 * 1024, /* 4 MB */ - 0xBFC00000); - - /* SRAM: 0x8000_0000 - 0x803F_FFFF and 0xA000_0000 - 0xA03F_FFFF */ - sim_do_commandf (sd, "memory alias 0x%lx@1,0x%lx,0x%0x", - 0x80000000, - 4 * 1024 * 1024, /* 4 MB */ - 0xA0000000); - - /* DRAM: 0x8800_0000 - 0x89FF_FFFF and 0xA800_0000 - 0xA9FF_FFFF */ - for (i=0; i<8; i++) /* 32 MB total */ - { - unsigned size = 4 * 1024 * 1024; /* 4 MB */ - sim_do_commandf (sd, "memory alias 0x%lx@1,0x%lx,0x%0x", - 0x88000000 + (i * size), - size, - 0xA8000000 + (i * size)); - } - } -#if (WITH_HW) - else if (board != NULL - && (strcmp(board, BOARD_JMR3904) == 0 || - strcmp(board, BOARD_JMR3904_PAL) == 0 || - strcmp(board, BOARD_JMR3904_DEBUG) == 0)) - { - /* match VIRTUAL memory layout of JMR-TX3904 board */ - int i; - - /* --- disable monitor unless forced on by user --- */ - - if (! firmware_option_p) - { - idt_monitor_base = 0; - pmon_monitor_base = 0; - lsipmon_monitor_base = 0; - } - - /* --- environment --- */ - - STATE_ENVIRONMENT (sd) = OPERATING_ENVIRONMENT; - - /* --- memory --- */ - - /* ROM: 0x9FC0_0000 - 0x9FFF_FFFF and 0xBFC0_0000 - 0xBFFF_FFFF */ - sim_do_commandf (sd, "memory alias 0x%lx@1,0x%lx,0x%0x", - 0x9FC00000, - 4 * 1024 * 1024, /* 4 MB */ - 0xBFC00000); - - /* SRAM: 0x8000_0000 - 0x803F_FFFF and 0xA000_0000 - 0xA03F_FFFF */ - sim_do_commandf (sd, "memory alias 0x%lx@1,0x%lx,0x%0x", - 0x80000000, - 4 * 1024 * 1024, /* 4 MB */ - 0xA0000000); - - /* DRAM: 0x8800_0000 - 0x89FF_FFFF and 0xA800_0000 - 0xA9FF_FFFF */ - for (i=0; i<8; i++) /* 32 MB total */ - { - unsigned size = 4 * 1024 * 1024; /* 4 MB */ - sim_do_commandf (sd, "memory alias 0x%lx@1,0x%lx,0x%0x", - 0x88000000 + (i * size), - size, - 0xA8000000 + (i * size)); - } - - /* Dummy memory regions for unsimulated devices - sorted by address */ - - sim_do_commandf (sd, "memory alias 0x%lx@1,0x%lx", 0xB1000000, 0x400); /* ISA I/O */ - sim_do_commandf (sd, "memory alias 0x%lx@1,0x%lx", 0xB2100000, 0x004); /* ISA ctl */ - sim_do_commandf (sd, "memory alias 0x%lx@1,0x%lx", 0xB2500000, 0x004); /* LED/switch */ - sim_do_commandf (sd, "memory alias 0x%lx@1,0x%lx", 0xB2700000, 0x004); /* RTC */ - sim_do_commandf (sd, "memory alias 0x%lx@1,0x%lx", 0xB3C00000, 0x004); /* RTC */ - sim_do_commandf (sd, "memory alias 0x%lx@1,0x%lx", 0xFFFF8000, 0x900); /* DRAMC */ - sim_do_commandf (sd, "memory alias 0x%lx@1,0x%lx", 0xFFFF9000, 0x200); /* EBIF */ - sim_do_commandf (sd, "memory alias 0x%lx@1,0x%lx", 0xFFFFE000, 0x01c); /* EBIF */ - sim_do_commandf (sd, "memory alias 0x%lx@1,0x%lx", 0xFFFFF500, 0x300); /* PIO */ - - - /* --- simulated devices --- */ - sim_hw_parse (sd, "/tx3904irc@0xffffc000/reg 0xffffc000 0x20"); - sim_hw_parse (sd, "/tx3904cpu"); - sim_hw_parse (sd, "/tx3904tmr@0xfffff000/reg 0xfffff000 0x100"); - sim_hw_parse (sd, "/tx3904tmr@0xfffff100/reg 0xfffff100 0x100"); - sim_hw_parse (sd, "/tx3904tmr@0xfffff200/reg 0xfffff200 0x100"); - sim_hw_parse (sd, "/tx3904sio@0xfffff300/reg 0xfffff300 0x100"); - { - /* FIXME: poking at dv-sockser internals, use tcp backend if - --sockser_addr option was given.*/ - extern char* sockser_addr; - if(sockser_addr == NULL) - sim_hw_parse (sd, "/tx3904sio@0xfffff300/backend stdio"); - else - sim_hw_parse (sd, "/tx3904sio@0xfffff300/backend tcp"); - } - sim_hw_parse (sd, "/tx3904sio@0xfffff400/reg 0xfffff400 0x100"); - sim_hw_parse (sd, "/tx3904sio@0xfffff400/backend stdio"); - - /* -- device connections --- */ - sim_hw_parse (sd, "/tx3904irc > ip level /tx3904cpu"); - sim_hw_parse (sd, "/tx3904tmr@0xfffff000 > int tmr0 /tx3904irc"); - sim_hw_parse (sd, "/tx3904tmr@0xfffff100 > int tmr1 /tx3904irc"); - sim_hw_parse (sd, "/tx3904tmr@0xfffff200 > int tmr2 /tx3904irc"); - sim_hw_parse (sd, "/tx3904sio@0xfffff300 > int sio0 /tx3904irc"); - sim_hw_parse (sd, "/tx3904sio@0xfffff400 > int sio1 /tx3904irc"); - - /* add PAL timer & I/O module */ - if(! strcmp(board, BOARD_JMR3904_PAL)) - { - /* the device */ - sim_hw_parse (sd, "/pal@0xffff0000"); - sim_hw_parse (sd, "/pal@0xffff0000/reg 0xffff0000 64"); - - /* wire up interrupt ports to irc */ - sim_hw_parse (sd, "/pal@0x31000000 > countdown tmr0 /tx3904irc"); - sim_hw_parse (sd, "/pal@0x31000000 > timer tmr1 /tx3904irc"); - sim_hw_parse (sd, "/pal@0x31000000 > int int0 /tx3904irc"); - } - - if(! strcmp(board, BOARD_JMR3904_DEBUG)) - { - /* -- DEBUG: glue interrupt generators --- */ - sim_hw_parse (sd, "/glue@0xffff0000/reg 0xffff0000 0x50"); - sim_hw_parse (sd, "/glue@0xffff0000 > int0 int0 /tx3904irc"); - sim_hw_parse (sd, "/glue@0xffff0000 > int1 int1 /tx3904irc"); - sim_hw_parse (sd, "/glue@0xffff0000 > int2 int2 /tx3904irc"); - sim_hw_parse (sd, "/glue@0xffff0000 > int3 int3 /tx3904irc"); - sim_hw_parse (sd, "/glue@0xffff0000 > int4 int4 /tx3904irc"); - sim_hw_parse (sd, "/glue@0xffff0000 > int5 int5 /tx3904irc"); - sim_hw_parse (sd, "/glue@0xffff0000 > int6 int6 /tx3904irc"); - sim_hw_parse (sd, "/glue@0xffff0000 > int7 int7 /tx3904irc"); - sim_hw_parse (sd, "/glue@0xffff0000 > int8 dmac0 /tx3904irc"); - sim_hw_parse (sd, "/glue@0xffff0000 > int9 dmac1 /tx3904irc"); - sim_hw_parse (sd, "/glue@0xffff0000 > int10 dmac2 /tx3904irc"); - sim_hw_parse (sd, "/glue@0xffff0000 > int11 dmac3 /tx3904irc"); - sim_hw_parse (sd, "/glue@0xffff0000 > int12 sio0 /tx3904irc"); - sim_hw_parse (sd, "/glue@0xffff0000 > int13 sio1 /tx3904irc"); - sim_hw_parse (sd, "/glue@0xffff0000 > int14 tmr0 /tx3904irc"); - sim_hw_parse (sd, "/glue@0xffff0000 > int15 tmr1 /tx3904irc"); - sim_hw_parse (sd, "/glue@0xffff0000 > int16 tmr2 /tx3904irc"); - sim_hw_parse (sd, "/glue@0xffff0000 > int17 nmi /tx3904cpu"); - } - - device_init(sd); - } -#endif - - - /* check for/establish the a reference program image */ - if (sim_analyze_program (sd, - (STATE_PROG_ARGV (sd) != NULL - ? *STATE_PROG_ARGV (sd) - : NULL), - abfd) != SIM_RC_OK) - { - sim_module_uninstall (sd); - return 0; - } - - /* Configure/verify the target byte order and other runtime - configuration options */ - if (sim_config (sd) != SIM_RC_OK) - { - sim_module_uninstall (sd); - return 0; - } - - if (sim_post_argv_init (sd) != SIM_RC_OK) - { - /* Uninstall the modules to avoid memory leaks, - file descriptor leaks, etc. */ - sim_module_uninstall (sd); - return 0; - } - - /* verify assumptions the simulator made about the host type system. - This macro does not return if there is a problem */ - SIM_ASSERT (sizeof(int) == (4 * sizeof(char))); - SIM_ASSERT (sizeof(word64) == (8 * sizeof(char))); - - /* This is NASTY, in that we are assuming the size of specific - registers: */ - { - int rn; - for (rn = 0; (rn < (LAST_EMBED_REGNUM + 1)); rn++) - { - if (rn < 32) - cpu->register_widths[rn] = WITH_TARGET_WORD_BITSIZE; - else if ((rn >= FGR_BASE) && (rn < (FGR_BASE + NR_FGR))) - cpu->register_widths[rn] = WITH_TARGET_FLOATING_POINT_BITSIZE; - else if ((rn >= 33) && (rn <= 37)) - cpu->register_widths[rn] = WITH_TARGET_WORD_BITSIZE; - else if ((rn == SRIDX) - || (rn == FCR0IDX) - || (rn == FCR31IDX) - || ((rn >= 72) && (rn <= 89))) - cpu->register_widths[rn] = 32; - else - cpu->register_widths[rn] = 0; - } - - - } - -#if defined(TRACE) - if (STATE & simTRACE) - open_trace(sd); -#endif /* TRACE */ - - /* - sim_io_eprintf (sd, "idt@%x pmon@%x lsipmon@%x\n", - idt_monitor_base, - pmon_monitor_base, - lsipmon_monitor_base); - */ - - /* Write the monitor trap address handlers into the monitor (eeprom) - address space. This can only be done once the target endianness - has been determined. */ - if (idt_monitor_base != 0) - { - unsigned loop; - unsigned idt_monitor_size = 1 << 11; - - /* the default monitor region */ - sim_do_commandf (sd, "memory region 0x%x,0x%x", - idt_monitor_base, idt_monitor_size); - - /* Entry into the IDT monitor is via fixed address vectors, and - not using machine instructions. To avoid clashing with use of - the MIPS TRAP system, we place our own (simulator specific) - "undefined" instructions into the relevant vector slots. */ - for (loop = 0; (loop < idt_monitor_size); loop += 4) - { - address_word vaddr = (idt_monitor_base + loop); - unsigned32 insn = (RSVD_INSTRUCTION | - (((loop >> 2) & RSVD_INSTRUCTION_ARG_MASK) - << RSVD_INSTRUCTION_ARG_SHIFT)); - H2T (insn); - sim_write (sd, vaddr, (char *)&insn, sizeof (insn)); - } - } - - if ((pmon_monitor_base != 0) || (lsipmon_monitor_base != 0)) - { - /* The PMON monitor uses the same address space, but rather than - branching into it the address of a routine is loaded. We can - cheat for the moment, and direct the PMON routine to IDT style - instructions within the monitor space. This relies on the IDT - monitor not using the locations from 0xBFC00500 onwards as its - entry points.*/ - unsigned loop; - for (loop = 0; (loop < 24); loop++) - { - unsigned32 value = ((0x500 - 8) / 8); /* default UNDEFINED reason code */ - switch (loop) - { - case 0: /* read */ - value = 7; - break; - case 1: /* write */ - value = 8; - break; - case 2: /* open */ - value = 6; - break; - case 3: /* close */ - value = 10; - break; - case 5: /* printf */ - value = ((0x500 - 16) / 8); /* not an IDT reason code */ - break; - case 8: /* cliexit */ - value = 17; - break; - case 11: /* flush_cache */ - value = 28; - break; - } - - SIM_ASSERT (idt_monitor_base != 0); - value = ((unsigned int) idt_monitor_base + (value * 8)); - H2T (value); - - if (pmon_monitor_base != 0) - { - address_word vaddr = (pmon_monitor_base + (loop * 4)); - sim_write (sd, vaddr, (char *)&value, sizeof (value)); - } - - if (lsipmon_monitor_base != 0) - { - address_word vaddr = (lsipmon_monitor_base + (loop * 4)); - sim_write (sd, vaddr, (char *)&value, sizeof (value)); - } - } - - /* Write an abort sequence into the TRAP (common) exception vector - addresses. This is to catch code executing a TRAP (et.al.) - instruction without installing a trap handler. */ - if ((idt_monitor_base != 0) || - (pmon_monitor_base != 0) || - (lsipmon_monitor_base != 0)) - { - unsigned32 halt[2] = { 0x2404002f /* addiu r4, r0, 47 */, - HALT_INSTRUCTION /* BREAK */ }; - H2T (halt[0]); - H2T (halt[1]); - sim_write (sd, 0x80000000, (char *) halt, sizeof (halt)); - sim_write (sd, 0x80000180, (char *) halt, sizeof (halt)); - sim_write (sd, 0x80000200, (char *) halt, sizeof (halt)); - /* XXX: Write here unconditionally? */ - sim_write (sd, 0xBFC00200, (char *) halt, sizeof (halt)); - sim_write (sd, 0xBFC00380, (char *) halt, sizeof (halt)); - sim_write (sd, 0xBFC00400, (char *) halt, sizeof (halt)); - } - } - - - - return sd; -} - -#if defined(TRACE) -static void -open_trace(sd) - SIM_DESC sd; -{ - tracefh = fopen(tracefile,"wb+"); - if (tracefh == NULL) - { - sim_io_eprintf(sd,"Failed to create file \"%s\", writing trace information to stderr.\n",tracefile); - tracefh = stderr; - } -} -#endif /* TRACE */ - -/* Return name of an insn, used by insn profiling. */ -static const char * -get_insn_name (sim_cpu *cpu, int i) -{ - return itable[i].name; -} - -void -sim_close (sd, quitting) - SIM_DESC sd; - int quitting; -{ -#ifdef DEBUG - printf("DBG: sim_close: entered (quitting = %d)\n",quitting); -#endif - - - /* "quitting" is non-zero if we cannot hang on errors */ - - /* shut down modules */ - sim_module_uninstall (sd); - - /* Ensure that any resources allocated through the callback - mechanism are released: */ - sim_io_shutdown (sd); - -#if defined(TRACE) - if (tracefh != NULL && tracefh != stderr) - fclose(tracefh); - tracefh = NULL; -#endif /* TRACE */ - - /* FIXME - free SD */ - - return; -} - - -int -sim_write (sd,addr,buffer,size) - SIM_DESC sd; - SIM_ADDR addr; - unsigned char *buffer; - int size; -{ - int index; - sim_cpu *cpu = STATE_CPU (sd, 0); /* FIXME */ - - /* Return the number of bytes written, or zero if error. */ -#ifdef DEBUG - sim_io_printf(sd,"sim_write(0x%s,buffer,%d);\n",pr_addr(addr),size); -#endif - - /* We use raw read and write routines, since we do not want to count - the GDB memory accesses in our statistics gathering. */ - - for (index = 0; index < size; index++) - { - address_word vaddr = (address_word)addr + index; - address_word paddr; - int cca; - if (!address_translation (SD, CPU, NULL_CIA, vaddr, isDATA, isSTORE, &paddr, &cca, isRAW)) - break; - if (sim_core_write_buffer (SD, CPU, read_map, buffer + index, paddr, 1) != 1) - break; - } - - return(index); -} - -int -sim_read (sd,addr,buffer,size) - SIM_DESC sd; - SIM_ADDR addr; - unsigned char *buffer; - int size; -{ - int index; - sim_cpu *cpu = STATE_CPU (sd, 0); /* FIXME */ - - /* Return the number of bytes read, or zero if error. */ -#ifdef DEBUG - sim_io_printf(sd,"sim_read(0x%s,buffer,%d);\n",pr_addr(addr),size); -#endif /* DEBUG */ - - for (index = 0; (index < size); index++) - { - address_word vaddr = (address_word)addr + index; - address_word paddr; - int cca; - if (!address_translation (SD, CPU, NULL_CIA, vaddr, isDATA, isLOAD, &paddr, &cca, isRAW)) - break; - if (sim_core_read_buffer (SD, CPU, read_map, buffer + index, paddr, 1) != 1) - break; - } - - return(index); -} - -int -sim_store_register (sd,rn,memory,length) - SIM_DESC sd; - int rn; - unsigned char *memory; - int length; -{ - sim_cpu *cpu = STATE_CPU (sd, 0); /* FIXME */ - /* NOTE: gdb (the client) stores registers in target byte order - while the simulator uses host byte order */ -#ifdef DEBUG - sim_io_printf(sd,"sim_store_register(%d,*memory=0x%s);\n",rn,pr_addr(*((SIM_ADDR *)memory))); -#endif /* DEBUG */ - - /* Unfortunately this suffers from the same problem as the register - numbering one. We need to know what the width of each logical - register number is for the architecture being simulated. */ - - if (cpu->register_widths[rn] == 0) - { - sim_io_eprintf(sd,"Invalid register width for %d (register store ignored)\n",rn); - return 0; - } - - - - if (rn >= FGR_BASE && rn < FGR_BASE + NR_FGR) - { - cpu->fpr_state[rn - FGR_BASE] = fmt_uninterpreted; - if (cpu->register_widths[rn] == 32) - { - if (length == 8) - { - cpu->fgr[rn - FGR_BASE] = - (unsigned32) T2H_8 (*(unsigned64*)memory); - return 8; - } - else - { - cpu->fgr[rn - FGR_BASE] = T2H_4 (*(unsigned32*)memory); - return 4; - } - } - else - { - cpu->fgr[rn - FGR_BASE] = T2H_8 (*(unsigned64*)memory); - return 8; - } - } - - if (cpu->register_widths[rn] == 32) - { - if (length == 8) - { - cpu->registers[rn] = - (unsigned32) T2H_8 (*(unsigned64*)memory); - return 8; - } - else - { - cpu->registers[rn] = T2H_4 (*(unsigned32*)memory); - return 4; - } - } - else - { - cpu->registers[rn] = T2H_8 (*(unsigned64*)memory); - return 8; - } - - return 0; -} - -int -sim_fetch_register (sd,rn,memory,length) - SIM_DESC sd; - int rn; - unsigned char *memory; - int length; -{ - sim_cpu *cpu = STATE_CPU (sd, 0); /* FIXME */ - /* NOTE: gdb (the client) stores registers in target byte order - while the simulator uses host byte order */ -#ifdef DEBUG -#if 0 /* FIXME: doesn't compile */ - sim_io_printf(sd,"sim_fetch_register(%d=0x%s,mem) : place simulator registers into memory\n",rn,pr_addr(registers[rn])); -#endif -#endif /* DEBUG */ - - if (cpu->register_widths[rn] == 0) - { - sim_io_eprintf (sd, "Invalid register width for %d (register fetch ignored)\n",rn); - return 0; - } - - - - /* Any floating point register */ - if (rn >= FGR_BASE && rn < FGR_BASE + NR_FGR) - { - if (cpu->register_widths[rn] == 32) - { - if (length == 8) - { - *(unsigned64*)memory = - H2T_8 ((unsigned32) (cpu->fgr[rn - FGR_BASE])); - return 8; - } - else - { - *(unsigned32*)memory = H2T_4 (cpu->fgr[rn - FGR_BASE]); - return 4; - } - } - else - { - *(unsigned64*)memory = H2T_8 (cpu->fgr[rn - FGR_BASE]); - return 8; - } - } - - if (cpu->register_widths[rn] == 32) - { - if (length == 8) - { - *(unsigned64*)memory = - H2T_8 ((unsigned32) (cpu->registers[rn])); - return 8; - } - else - { - *(unsigned32*)memory = H2T_4 ((unsigned32)(cpu->registers[rn])); - return 4; - } - } - else - { - *(unsigned64*)memory = H2T_8 ((unsigned64)(cpu->registers[rn])); - return 8; - } - - return 0; -} - - -SIM_RC -sim_create_inferior (sd, abfd, argv,env) - SIM_DESC sd; - struct _bfd *abfd; - char **argv; - char **env; -{ - -#ifdef DEBUG -#if 0 /* FIXME: doesn't compile */ - printf("DBG: sim_create_inferior entered: start_address = 0x%s\n", - pr_addr(PC)); -#endif -#endif /* DEBUG */ - - ColdReset(sd); - - if (abfd != NULL) - { - /* override PC value set by ColdReset () */ - int cpu_nr; - for (cpu_nr = 0; cpu_nr < sim_engine_nr_cpus (sd); cpu_nr++) - { - sim_cpu *cpu = STATE_CPU (sd, cpu_nr); - CIA_SET (cpu, (unsigned64) bfd_get_start_address (abfd)); - } - } - -#if 0 /* def DEBUG */ - if (argv || env) - { - /* We should really place the argv slot values into the argument - registers, and onto the stack as required. However, this - assumes that we have a stack defined, which is not - necessarily true at the moment. */ - char **cptr; - sim_io_printf(sd,"sim_create_inferior() : passed arguments ignored\n"); - for (cptr = argv; (cptr && *cptr); cptr++) - printf("DBG: arg \"%s\"\n",*cptr); - } -#endif /* DEBUG */ - - return SIM_RC_OK; -} - -void -sim_do_command (sd,cmd) - SIM_DESC sd; - char *cmd; -{ - if (sim_args_command (sd, cmd) != SIM_RC_OK) - sim_io_printf (sd, "Error: \"%s\" is not a valid MIPS simulator command.\n", - cmd); -} - -/*---------------------------------------------------------------------------*/ -/*-- Private simulator support interface ------------------------------------*/ -/*---------------------------------------------------------------------------*/ - -/* Read a null terminated string from memory, return in a buffer */ -static char * -fetch_str (SIM_DESC sd, - address_word addr) -{ - char *buf; - int nr = 0; - char null; - while (sim_read (sd, addr + nr, &null, 1) == 1 && null != 0) - nr++; - buf = NZALLOC (char, nr + 1); - sim_read (sd, addr, buf, nr); - return buf; -} - - -/* Implements the "sim firmware" command: - sim firmware NAME[@ADDRESS] --- emulate ROM monitor named NAME. - NAME can be idt, pmon, or lsipmon. If omitted, ADDRESS - defaults to the normal address for that monitor. - sim firmware none --- don't emulate any ROM monitor. Useful - if you need a clean address space. */ -static SIM_RC -sim_firmware_command (SIM_DESC sd, char *arg) -{ - int address_present = 0; - SIM_ADDR address; - - /* Signal occurrence of this option. */ - firmware_option_p = 1; - - /* Parse out the address, if present. */ - { - char *p = strchr (arg, '@'); - if (p) - { - char *q; - address_present = 1; - p ++; /* skip over @ */ - - address = strtoul (p, &q, 0); - if (*q != '\0') - { - sim_io_printf (sd, "Invalid address given to the" - "`sim firmware NAME@ADDRESS' command: %s\n", - p); - return SIM_RC_FAIL; - } - } - else - { - address_present = 0; - address = -1; /* Dummy value. */ - } - } - - if (! strncmp (arg, "idt", 3)) - { - idt_monitor_base = address_present ? address : 0xBFC00000; - pmon_monitor_base = 0; - lsipmon_monitor_base = 0; - } - else if (! strncmp (arg, "pmon", 4)) - { - /* pmon uses indirect calls. Hook into implied idt. */ - pmon_monitor_base = address_present ? address : 0xBFC00500; - idt_monitor_base = pmon_monitor_base - 0x500; - lsipmon_monitor_base = 0; - } - else if (! strncmp (arg, "lsipmon", 7)) - { - /* lsipmon uses indirect calls. Hook into implied idt. */ - pmon_monitor_base = 0; - lsipmon_monitor_base = address_present ? address : 0xBFC00200; - idt_monitor_base = lsipmon_monitor_base - 0x200; - } - else if (! strncmp (arg, "none", 4)) - { - if (address_present) - { - sim_io_printf (sd, - "The `sim firmware none' command does " - "not take an `ADDRESS' argument.\n"); - return SIM_RC_FAIL; - } - idt_monitor_base = 0; - pmon_monitor_base = 0; - lsipmon_monitor_base = 0; - } - else - { - sim_io_printf (sd, "\ -Unrecognized name given to the `sim firmware NAME' command: %s\n\ -Recognized firmware names are: `idt', `pmon', `lsipmon', and `none'.\n", - arg); - return SIM_RC_FAIL; - } - - return SIM_RC_OK; -} - - - -/* Simple monitor interface (currently setup for the IDT and PMON monitors) */ -int -sim_monitor (SIM_DESC sd, - sim_cpu *cpu, - address_word cia, - unsigned int reason) -{ -#ifdef DEBUG - printf("DBG: sim_monitor: entered (reason = %d)\n",reason); -#endif /* DEBUG */ - - /* The IDT monitor actually allows two instructions per vector - slot. However, the simulator currently causes a trap on each - individual instruction. We cheat, and lose the bottom bit. */ - reason >>= 1; - - /* The following callback functions are available, however the - monitor we are simulating does not make use of them: get_errno, - isatty, lseek, rename, system, time and unlink */ - switch (reason) - { - - case 6: /* int open(char *path,int flags) */ - { - char *path = fetch_str (sd, A0); - V0 = sim_io_open (sd, path, (int)A1); - zfree (path); - break; - } - - case 7: /* int read(int file,char *ptr,int len) */ - { - int fd = A0; - int nr = A2; - char *buf = zalloc (nr); - V0 = sim_io_read (sd, fd, buf, nr); - sim_write (sd, A1, buf, nr); - zfree (buf); - } - break; - - case 8: /* int write(int file,char *ptr,int len) */ - { - int fd = A0; - int nr = A2; - char *buf = zalloc (nr); - sim_read (sd, A1, buf, nr); - V0 = sim_io_write (sd, fd, buf, nr); - zfree (buf); - break; - } - - case 10: /* int close(int file) */ - { - V0 = sim_io_close (sd, (int)A0); - break; - } - - case 2: /* Densan monitor: char inbyte(int waitflag) */ - { - if (A0 == 0) /* waitflag == NOWAIT */ - V0 = (unsigned_word)-1; - } - /* Drop through to case 11 */ - - case 11: /* char inbyte(void) */ - { - char tmp; - /* ensure that all output has gone... */ - sim_io_flush_stdout (sd); - if (sim_io_read_stdin (sd, &tmp, sizeof(char)) != sizeof(char)) - { - sim_io_error(sd,"Invalid return from character read"); - V0 = (unsigned_word)-1; - } - else - V0 = (unsigned_word)tmp; - break; - } - - case 3: /* Densan monitor: void co(char chr) */ - case 12: /* void outbyte(char chr) : write a byte to "stdout" */ - { - char tmp = (char)(A0 & 0xFF); - sim_io_write_stdout (sd, &tmp, sizeof(char)); - break; - } - - case 17: /* void _exit() */ - { - sim_io_eprintf (sd, "sim_monitor(17): _exit(int reason) to be coded\n"); - sim_engine_halt (SD, CPU, NULL, NULL_CIA, sim_exited, - (unsigned int)(A0 & 0xFFFFFFFF)); - break; - } - - case 28: /* PMON flush_cache */ - break; - - case 55: /* void get_mem_info(unsigned int *ptr) */ - /* in: A0 = pointer to three word memory location */ - /* out: [A0 + 0] = size */ - /* [A0 + 4] = instruction cache size */ - /* [A0 + 8] = data cache size */ - { - unsigned_4 value = MEM_SIZE /* FIXME STATE_MEM_SIZE (sd) */; - unsigned_4 zero = 0; - H2T (value); - sim_write (sd, A0 + 0, (char *)&value, 4); - sim_write (sd, A0 + 4, (char *)&zero, 4); - sim_write (sd, A0 + 8, (char *)&zero, 4); - /* sim_io_eprintf (sd, "sim: get_mem_info() deprecated\n"); */ - break; - } - - case 158: /* PMON printf */ - /* in: A0 = pointer to format string */ - /* A1 = optional argument 1 */ - /* A2 = optional argument 2 */ - /* A3 = optional argument 3 */ - /* out: void */ - /* The following is based on the PMON printf source */ - { - address_word s = A0; - char c; - signed_word *ap = &A1; /* 1st argument */ - /* This isn't the quickest way, since we call the host print - routine for every character almost. But it does avoid - having to allocate and manage a temporary string buffer. */ - /* TODO: Include check that we only use three arguments (A1, - A2 and A3) */ - while (sim_read (sd, s++, &c, 1) && c != '\0') - { - if (c == '%') - { - char tmp[40]; - enum {FMT_RJUST, FMT_LJUST, FMT_RJUST0, FMT_CENTER} fmt = FMT_RJUST; - int width = 0, trunc = 0, haddot = 0, longlong = 0; - while (sim_read (sd, s++, &c, 1) && c != '\0') - { - if (strchr ("dobxXulscefg%", c)) - break; - else if (c == '-') - fmt = FMT_LJUST; - else if (c == '0') - fmt = FMT_RJUST0; - else if (c == '~') - fmt = FMT_CENTER; - else if (c == '*') - { - if (haddot) - trunc = (int)*ap++; - else - width = (int)*ap++; - } - else if (c >= '1' && c <= '9') - { - address_word t = s; - unsigned int n; - while (sim_read (sd, s++, &c, 1) == 1 && isdigit (c)) - tmp[s - t] = c; - tmp[s - t] = '\0'; - n = (unsigned int)strtol(tmp,NULL,10); - if (haddot) - trunc = n; - else - width = n; - s--; - } - else if (c == '.') - haddot = 1; - } - switch (c) - { - case '%': - sim_io_printf (sd, "%%"); - break; - case 's': - if ((int)*ap != 0) - { - address_word p = *ap++; - char ch; - while (sim_read (sd, p++, &ch, 1) == 1 && ch != '\0') - sim_io_printf(sd, "%c", ch); - } - else - sim_io_printf(sd,"(null)"); - break; - case 'c': - sim_io_printf (sd, "%c", (int)*ap++); - break; - default: - if (c == 'l') - { - sim_read (sd, s++, &c, 1); - if (c == 'l') - { - longlong = 1; - sim_read (sd, s++, &c, 1); - } - } - if (strchr ("dobxXu", c)) - { - word64 lv = (word64) *ap++; - if (c == 'b') - sim_io_printf(sd,"<binary not supported>"); - else - { - sprintf (tmp, "%%%s%c", longlong ? "ll" : "", c); - if (longlong) - sim_io_printf(sd, tmp, lv); - else - sim_io_printf(sd, tmp, (int)lv); - } - } - else if (strchr ("eEfgG", c)) - { - double dbl = *(double*)(ap++); - sprintf (tmp, "%%%d.%d%c", width, trunc, c); - sim_io_printf (sd, tmp, dbl); - trunc = 0; - } - } - } - else - sim_io_printf(sd, "%c", c); - } - break; - } - - default: - /* Unknown reason. */ - return 0; - } - return 1; -} - -/* Store a word into memory. */ - -static void -store_word (SIM_DESC sd, - sim_cpu *cpu, - address_word cia, - uword64 vaddr, - signed_word val) -{ - address_word paddr; - int uncached; - - if ((vaddr & 3) != 0) - SignalExceptionAddressStore (); - else - { - if (AddressTranslation (vaddr, isDATA, isSTORE, &paddr, &uncached, - isTARGET, isREAL)) - { - const uword64 mask = 7; - uword64 memval; - unsigned int byte; - - paddr = (paddr & ~mask) | ((paddr & mask) ^ (ReverseEndian << 2)); - byte = (vaddr & mask) ^ (BigEndianCPU << 2); - memval = ((uword64) val) << (8 * byte); - StoreMemory (uncached, AccessLength_WORD, memval, 0, paddr, vaddr, - isREAL); - } - } -} - -/* Load a word from memory. */ - -static signed_word -load_word (SIM_DESC sd, - sim_cpu *cpu, - address_word cia, - uword64 vaddr) -{ - if ((vaddr & 3) != 0) - { - SIM_CORE_SIGNAL (SD, cpu, cia, read_map, AccessLength_WORD+1, vaddr, read_transfer, sim_core_unaligned_signal); - } - else - { - address_word paddr; - int uncached; - - if (AddressTranslation (vaddr, isDATA, isLOAD, &paddr, &uncached, - isTARGET, isREAL)) - { - const uword64 mask = 0x7; - const unsigned int reverse = ReverseEndian ? 1 : 0; - const unsigned int bigend = BigEndianCPU ? 1 : 0; - uword64 memval; - unsigned int byte; - - paddr = (paddr & ~mask) | ((paddr & mask) ^ (reverse << 2)); - LoadMemory (&memval,NULL,uncached, AccessLength_WORD, paddr, vaddr, - isDATA, isREAL); - byte = (vaddr & mask) ^ (bigend << 2); - return EXTEND32 (memval >> (8 * byte)); - } - } - - return 0; -} - -/* Simulate the mips16 entry and exit pseudo-instructions. These - would normally be handled by the reserved instruction exception - code, but for ease of simulation we just handle them directly. */ - -static void -mips16_entry (SIM_DESC sd, - sim_cpu *cpu, - address_word cia, - unsigned int insn) -{ - int aregs, sregs, rreg; - -#ifdef DEBUG - printf("DBG: mips16_entry: entered (insn = 0x%08X)\n",insn); -#endif /* DEBUG */ - - aregs = (insn & 0x700) >> 8; - sregs = (insn & 0x0c0) >> 6; - rreg = (insn & 0x020) >> 5; - - /* This should be checked by the caller. */ - if (sregs == 3) - abort (); - - if (aregs < 5) - { - int i; - signed_word tsp; - - /* This is the entry pseudo-instruction. */ - - for (i = 0; i < aregs; i++) - store_word (SD, CPU, cia, (uword64) (SP + 4 * i), GPR[i + 4]); - - tsp = SP; - SP -= 32; - - if (rreg) - { - tsp -= 4; - store_word (SD, CPU, cia, (uword64) tsp, RA); - } - - for (i = 0; i < sregs; i++) - { - tsp -= 4; - store_word (SD, CPU, cia, (uword64) tsp, GPR[16 + i]); - } - } - else - { - int i; - signed_word tsp; - - /* This is the exit pseudo-instruction. */ - - tsp = SP + 32; - - if (rreg) - { - tsp -= 4; - RA = load_word (SD, CPU, cia, (uword64) tsp); - } - - for (i = 0; i < sregs; i++) - { - tsp -= 4; - GPR[i + 16] = load_word (SD, CPU, cia, (uword64) tsp); - } - - SP += 32; - - if (CURRENT_FLOATING_POINT == HARD_FLOATING_POINT) - { - if (aregs == 5) - { - FGR[0] = WORD64LO (GPR[4]); - FPR_STATE[0] = fmt_uninterpreted; - } - else if (aregs == 6) - { - FGR[0] = WORD64LO (GPR[5]); - FGR[1] = WORD64LO (GPR[4]); - FPR_STATE[0] = fmt_uninterpreted; - FPR_STATE[1] = fmt_uninterpreted; - } - } - - PC = RA; - } - -} - -/*-- trace support ----------------------------------------------------------*/ - -/* The TRACE support is provided (if required) in the memory accessing - routines. Since we are also providing the architecture specific - features, the architecture simulation code can also deal with - notifying the TRACE world of cache flushes, etc. Similarly we do - not need to provide profiling support in the simulator engine, - since we can sample in the instruction fetch control loop. By - defining the TRACE manifest, we add tracing as a run-time - option. */ - -#if defined(TRACE) -/* Tracing by default produces "din" format (as required by - dineroIII). Each line of such a trace file *MUST* have a din label - and address field. The rest of the line is ignored, so comments can - be included if desired. The first field is the label which must be - one of the following values: - - 0 read data - 1 write data - 2 instruction fetch - 3 escape record (treated as unknown access type) - 4 escape record (causes cache flush) - - The address field is a 32bit (lower-case) hexadecimal address - value. The address should *NOT* be preceded by "0x". - - The size of the memory transfer is not important when dealing with - cache lines (as long as no more than a cache line can be - transferred in a single operation :-), however more information - could be given following the dineroIII requirement to allow more - complete memory and cache simulators to provide better - results. i.e. the University of Pisa has a cache simulator that can - also take bus size and speed as (variable) inputs to calculate - complete system performance (a much more useful ability when trying - to construct an end product, rather than a processor). They - currently have an ARM version of their tool called ChARM. */ - - -void -dotrace (SIM_DESC sd, - sim_cpu *cpu, - FILE *tracefh, - int type, - SIM_ADDR address, - int width, - char *comment,...) -{ - if (STATE & simTRACE) { - va_list ap; - fprintf(tracefh,"%d %s ; width %d ; ", - type, - pr_addr(address), - width); - va_start(ap,comment); - vfprintf(tracefh,comment,ap); - va_end(ap); - fprintf(tracefh,"\n"); - } - /* NOTE: Since the "din" format will only accept 32bit addresses, and - we may be generating 64bit ones, we should put the hi-32bits of the - address into the comment field. */ - - /* TODO: Provide a buffer for the trace lines. We can then avoid - performing writes until the buffer is filled, or the file is - being closed. */ - - /* NOTE: We could consider adding a comment field to the "din" file - produced using type 3 markers (unknown access). This would then - allow information about the program that the "din" is for, and - the MIPs world that was being simulated, to be placed into the - trace file. */ - - return; -} -#endif /* TRACE */ - -/*---------------------------------------------------------------------------*/ -/*-- simulator engine -------------------------------------------------------*/ -/*---------------------------------------------------------------------------*/ - -static void -ColdReset (SIM_DESC sd) -{ - int cpu_nr; - for (cpu_nr = 0; cpu_nr < sim_engine_nr_cpus (sd); cpu_nr++) - { - sim_cpu *cpu = STATE_CPU (sd, cpu_nr); - /* RESET: Fixed PC address: */ - PC = (unsigned_word) UNSIGNED64 (0xFFFFFFFFBFC00000); - /* The reset vector address is in the unmapped, uncached memory space. */ - - SR &= ~(status_SR | status_TS | status_RP); - SR |= (status_ERL | status_BEV); - - /* Cheat and allow access to the complete register set immediately */ - if (CURRENT_FLOATING_POINT == HARD_FLOATING_POINT - && WITH_TARGET_WORD_BITSIZE == 64) - SR |= status_FR; /* 64bit registers */ - - /* Ensure that any instructions with pending register updates are - cleared: */ - PENDING_INVALIDATE(); - - /* Initialise the FPU registers to the unknown state */ - if (CURRENT_FLOATING_POINT == HARD_FLOATING_POINT) - { - int rn; - for (rn = 0; (rn < 32); rn++) - FPR_STATE[rn] = fmt_uninterpreted; - } - - } -} - - - - -/* Description from page A-26 of the "MIPS IV Instruction Set" manual (revision 3.1) */ -/* Signal an exception condition. This will result in an exception - that aborts the instruction. The instruction operation pseudocode - will never see a return from this function call. */ - -void -signal_exception (SIM_DESC sd, - sim_cpu *cpu, - address_word cia, - int exception,...) -{ - /* int vector; */ - -#ifdef DEBUG - sim_io_printf(sd,"DBG: SignalException(%d) PC = 0x%s\n",exception,pr_addr(cia)); -#endif /* DEBUG */ - - /* Ensure that any active atomic read/modify/write operation will fail: */ - LLBIT = 0; - - /* Save registers before interrupt dispatching */ -#ifdef SIM_CPU_EXCEPTION_TRIGGER - SIM_CPU_EXCEPTION_TRIGGER(sd, cpu, cia); -#endif - - switch (exception) { - - case DebugBreakPoint: - if (! (Debug & Debug_DM)) - { - if (INDELAYSLOT()) - { - CANCELDELAYSLOT(); - - Debug |= Debug_DBD; /* signaled from within in delay slot */ - DEPC = cia - 4; /* reference the branch instruction */ - } - else - { - Debug &= ~Debug_DBD; /* not signaled from within a delay slot */ - DEPC = cia; - } - - Debug |= Debug_DM; /* in debugging mode */ - Debug |= Debug_DBp; /* raising a DBp exception */ - PC = 0xBFC00200; - sim_engine_restart (SD, CPU, NULL, NULL_CIA); - } - break; - - case ReservedInstruction: - { - va_list ap; - unsigned int instruction; - va_start(ap,exception); - instruction = va_arg(ap,unsigned int); - va_end(ap); - /* Provide simple monitor support using ReservedInstruction - exceptions. The following code simulates the fixed vector - entry points into the IDT monitor by causing a simulator - trap, performing the monitor operation, and returning to - the address held in the $ra register (standard PCS return - address). This means we only need to pre-load the vector - space with suitable instruction values. For systems were - actual trap instructions are used, we would not need to - perform this magic. */ - if ((instruction & RSVD_INSTRUCTION_MASK) == RSVD_INSTRUCTION) - { - int reason = (instruction >> RSVD_INSTRUCTION_ARG_SHIFT) & RSVD_INSTRUCTION_ARG_MASK; - if (!sim_monitor (SD, CPU, cia, reason)) - sim_io_error (sd, "sim_monitor: unhandled reason = %d, pc = 0x%s\n", reason, pr_addr (cia)); - - /* NOTE: This assumes that a branch-and-link style - instruction was used to enter the vector (which is the - case with the current IDT monitor). */ - sim_engine_restart (SD, CPU, NULL, RA); - } - /* Look for the mips16 entry and exit instructions, and - simulate a handler for them. */ - else if ((cia & 1) != 0 - && (instruction & 0xf81f) == 0xe809 - && (instruction & 0x0c0) != 0x0c0) - { - mips16_entry (SD, CPU, cia, instruction); - sim_engine_restart (sd, NULL, NULL, NULL_CIA); - } - /* else fall through to normal exception processing */ - sim_io_eprintf(sd,"ReservedInstruction at PC = 0x%s\n", pr_addr (cia)); - } - - default: - /* Store exception code into current exception id variable (used - by exit code): */ - - /* TODO: If not simulating exceptions then stop the simulator - execution. At the moment we always stop the simulation. */ - -#ifdef SUBTARGET_R3900 - /* update interrupt-related registers */ - - /* insert exception code in bits 6:2 */ - CAUSE = LSMASKED32(CAUSE, 31, 7) | LSINSERTED32(exception, 6, 2); - /* shift IE/KU history bits left */ - SR = LSMASKED32(SR, 31, 4) | LSINSERTED32(LSEXTRACTED32(SR, 3, 0), 5, 2); - - if (STATE & simDELAYSLOT) - { - STATE &= ~simDELAYSLOT; - CAUSE |= cause_BD; - EPC = (cia - 4); /* reference the branch instruction */ - } - else - EPC = cia; - - if (SR & status_BEV) - PC = (signed)0xBFC00000 + 0x180; - else - PC = (signed)0x80000000 + 0x080; -#else - /* See figure 5-17 for an outline of the code below */ - if (! (SR & status_EXL)) - { - CAUSE = (exception << 2); - if (STATE & simDELAYSLOT) - { - STATE &= ~simDELAYSLOT; - CAUSE |= cause_BD; - EPC = (cia - 4); /* reference the branch instruction */ - } - else - EPC = cia; - /* FIXME: TLB et.al. */ - /* vector = 0x180; */ - } - else - { - CAUSE = (exception << 2); - /* vector = 0x180; */ - } - SR |= status_EXL; - /* Store exception code into current exception id variable (used - by exit code): */ - - if (SR & status_BEV) - PC = (signed)0xBFC00200 + 0x180; - else - PC = (signed)0x80000000 + 0x180; -#endif - - switch ((CAUSE >> 2) & 0x1F) - { - case Interrupt: - /* Interrupts arrive during event processing, no need to - restart */ - return; - - case NMIReset: - /* Ditto */ -#ifdef SUBTARGET_3900 - /* Exception vector: BEV=0 BFC00000 / BEF=1 BFC00000 */ - PC = (signed)0xBFC00000; -#endif /* SUBTARGET_3900 */ - return; - - case TLBModification: - case TLBLoad: - case TLBStore: - case AddressLoad: - case AddressStore: - case InstructionFetch: - case DataReference: - /* The following is so that the simulator will continue from the - exception handler address. */ - sim_engine_halt (SD, CPU, NULL, PC, - sim_stopped, SIM_SIGBUS); - - case ReservedInstruction: - case CoProcessorUnusable: - PC = EPC; - sim_engine_halt (SD, CPU, NULL, PC, - sim_stopped, SIM_SIGILL); - - case IntegerOverflow: - case FPE: - sim_engine_halt (SD, CPU, NULL, PC, - sim_stopped, SIM_SIGFPE); - - case BreakPoint: - sim_engine_halt (SD, CPU, NULL, PC, sim_stopped, SIM_SIGTRAP); - break; - - case SystemCall: - case Trap: - sim_engine_restart (SD, CPU, NULL, PC); - break; - - case Watch: - PC = EPC; - sim_engine_halt (SD, CPU, NULL, PC, - sim_stopped, SIM_SIGTRAP); - - default: /* Unknown internal exception */ - PC = EPC; - sim_engine_halt (SD, CPU, NULL, PC, - sim_stopped, SIM_SIGABRT); - - } - - case SimulatorFault: - { - va_list ap; - char *msg; - va_start(ap,exception); - msg = va_arg(ap,char *); - va_end(ap); - sim_engine_abort (SD, CPU, NULL_CIA, - "FATAL: Simulator error \"%s\"\n",msg); - } - } - - return; -} - - - -/* This function implements what the MIPS32 and MIPS64 ISAs define as - "UNPREDICTABLE" behaviour. - - About UNPREDICTABLE behaviour they say: "UNPREDICTABLE results - may vary from processor implementation to processor implementation, - instruction to instruction, or as a function of time on the same - implementation or instruction. Software can never depend on results - that are UNPREDICTABLE. ..." (MIPS64 Architecture for Programmers - Volume II, The MIPS64 Instruction Set. MIPS Document MD00087 revision - 0.95, page 2.) - - For UNPREDICTABLE behaviour, we print a message, if possible print - the offending instructions mips.igen instruction name (provided by - the caller), and stop the simulator. - - XXX FIXME: eventually, stopping the simulator should be made conditional - on a command-line option. */ -void -unpredictable_action(sim_cpu *cpu, address_word cia) -{ - SIM_DESC sd = CPU_STATE(cpu); - - sim_io_eprintf(sd, "UNPREDICTABLE: PC = 0x%s\n", pr_addr (cia)); - sim_engine_halt (SD, CPU, NULL, cia, sim_stopped, SIM_SIGABRT); -} - - -/*-- co-processor support routines ------------------------------------------*/ - -static int UNUSED -CoProcPresent(unsigned int coproc_number) -{ - /* Return TRUE if simulator provides a model for the given co-processor number */ - return(0); -} - -void -cop_lw (SIM_DESC sd, - sim_cpu *cpu, - address_word cia, - int coproc_num, - int coproc_reg, - unsigned int memword) -{ - switch (coproc_num) - { - case 1: - if (CURRENT_FLOATING_POINT == HARD_FLOATING_POINT) - { -#ifdef DEBUG - printf("DBG: COP_LW: memword = 0x%08X (uword64)memword = 0x%s\n",memword,pr_addr(memword)); -#endif - StoreFPR(coproc_reg,fmt_word,(uword64)memword); - FPR_STATE[coproc_reg] = fmt_uninterpreted; - break; - } - - default: -#if 0 /* this should be controlled by a configuration option */ - sim_io_printf(sd,"COP_LW(%d,%d,0x%08X) at PC = 0x%s : TODO (architecture specific)\n",coproc_num,coproc_reg,memword,pr_addr(cia)); -#endif - break; - } - - return; -} - -void -cop_ld (SIM_DESC sd, - sim_cpu *cpu, - address_word cia, - int coproc_num, - int coproc_reg, - uword64 memword) -{ - -#ifdef DEBUG - printf("DBG: COP_LD: coproc_num = %d, coproc_reg = %d, value = 0x%s : PC = 0x%s\n", coproc_num, coproc_reg, pr_uword64(memword), pr_addr(cia) ); -#endif - - switch (coproc_num) { - case 1: - if (CURRENT_FLOATING_POINT == HARD_FLOATING_POINT) - { - StoreFPR(coproc_reg,fmt_uninterpreted,memword); - break; - } - - default: -#if 0 /* this message should be controlled by a configuration option */ - sim_io_printf(sd,"COP_LD(%d,%d,0x%s) at PC = 0x%s : TODO (architecture specific)\n",coproc_num,coproc_reg,pr_addr(memword),pr_addr(cia)); -#endif - break; - } - - return; -} - - - - -unsigned int -cop_sw (SIM_DESC sd, - sim_cpu *cpu, - address_word cia, - int coproc_num, - int coproc_reg) -{ - unsigned int value = 0; - - switch (coproc_num) - { - case 1: - if (CURRENT_FLOATING_POINT == HARD_FLOATING_POINT) - { - FP_formats hold; - hold = FPR_STATE[coproc_reg]; - FPR_STATE[coproc_reg] = fmt_word; - value = (unsigned int)ValueFPR(coproc_reg,fmt_uninterpreted); - FPR_STATE[coproc_reg] = hold; - break; - } - - default: -#if 0 /* should be controlled by configuration option */ - sim_io_printf(sd,"COP_SW(%d,%d) at PC = 0x%s : TODO (architecture specific)\n",coproc_num,coproc_reg,pr_addr(cia)); -#endif - break; - } - - return(value); -} - -uword64 -cop_sd (SIM_DESC sd, - sim_cpu *cpu, - address_word cia, - int coproc_num, - int coproc_reg) -{ - uword64 value = 0; - switch (coproc_num) - { - case 1: - if (CURRENT_FLOATING_POINT == HARD_FLOATING_POINT) - { - value = ValueFPR(coproc_reg,fmt_uninterpreted); - break; - } - - default: -#if 0 /* should be controlled by configuration option */ - sim_io_printf(sd,"COP_SD(%d,%d) at PC = 0x%s : TODO (architecture specific)\n",coproc_num,coproc_reg,pr_addr(cia)); -#endif - break; - } - - return(value); -} - - - - -void -decode_coproc (SIM_DESC sd, - sim_cpu *cpu, - address_word cia, - unsigned int instruction) -{ - int coprocnum = ((instruction >> 26) & 3); - - switch (coprocnum) - { - case 0: /* standard CPU control and cache registers */ - { - int code = ((instruction >> 21) & 0x1F); - int rt = ((instruction >> 16) & 0x1F); - int rd = ((instruction >> 11) & 0x1F); - int tail = instruction & 0x3ff; - /* R4000 Users Manual (second edition) lists the following CP0 - instructions: - CODE><-RT><RD-><--TAIL---> - DMFC0 Doubleword Move From CP0 (VR4100 = 01000000001tttttddddd00000000000) - DMTC0 Doubleword Move To CP0 (VR4100 = 01000000101tttttddddd00000000000) - MFC0 word Move From CP0 (VR4100 = 01000000000tttttddddd00000000000) - MTC0 word Move To CP0 (VR4100 = 01000000100tttttddddd00000000000) - TLBR Read Indexed TLB Entry (VR4100 = 01000010000000000000000000000001) - TLBWI Write Indexed TLB Entry (VR4100 = 01000010000000000000000000000010) - TLBWR Write Random TLB Entry (VR4100 = 01000010000000000000000000000110) - TLBP Probe TLB for Matching Entry (VR4100 = 01000010000000000000000000001000) - CACHE Cache operation (VR4100 = 101111bbbbbpppppiiiiiiiiiiiiiiii) - ERET Exception return (VR4100 = 01000010000000000000000000011000) - */ - if (((code == 0x00) || (code == 0x04) /* MFC0 / MTC0 */ - || (code == 0x01) || (code == 0x05)) /* DMFC0 / DMTC0 */ - && tail == 0) - { - /* Clear double/single coprocessor move bit. */ - code &= ~1; - - /* M[TF]C0 (32 bits) | DM[TF]C0 (64 bits) */ - - switch (rd) /* NOTEs: Standard CP0 registers */ - { - /* 0 = Index R4000 VR4100 VR4300 */ - /* 1 = Random R4000 VR4100 VR4300 */ - /* 2 = EntryLo0 R4000 VR4100 VR4300 */ - /* 3 = EntryLo1 R4000 VR4100 VR4300 */ - /* 4 = Context R4000 VR4100 VR4300 */ - /* 5 = PageMask R4000 VR4100 VR4300 */ - /* 6 = Wired R4000 VR4100 VR4300 */ - /* 8 = BadVAddr R4000 VR4100 VR4300 */ - /* 9 = Count R4000 VR4100 VR4300 */ - /* 10 = EntryHi R4000 VR4100 VR4300 */ - /* 11 = Compare R4000 VR4100 VR4300 */ - /* 12 = SR R4000 VR4100 VR4300 */ -#ifdef SUBTARGET_R3900 - case 3: - /* 3 = Config R3900 */ - case 7: - /* 7 = Cache R3900 */ - case 15: - /* 15 = PRID R3900 */ - - /* ignore */ - break; - - case 8: - /* 8 = BadVAddr R4000 VR4100 VR4300 */ - if (code == 0x00) - GPR[rt] = COP0_BADVADDR; - else - COP0_BADVADDR = GPR[rt]; - break; - -#endif /* SUBTARGET_R3900 */ - case 12: - if (code == 0x00) - GPR[rt] = SR; - else - SR = GPR[rt]; - break; - /* 13 = Cause R4000 VR4100 VR4300 */ - case 13: - if (code == 0x00) - GPR[rt] = CAUSE; - else - CAUSE = GPR[rt]; - break; - /* 14 = EPC R4000 VR4100 VR4300 */ - case 14: - if (code == 0x00) - GPR[rt] = (signed_word) (signed_address) EPC; - else - EPC = GPR[rt]; - break; - /* 15 = PRId R4000 VR4100 VR4300 */ -#ifdef SUBTARGET_R3900 - /* 16 = Debug */ - case 16: - if (code == 0x00) - GPR[rt] = Debug; - else - Debug = GPR[rt]; - break; -#else - /* 16 = Config R4000 VR4100 VR4300 */ - case 16: - if (code == 0x00) - GPR[rt] = C0_CONFIG; - else - C0_CONFIG = GPR[rt]; - break; -#endif -#ifdef SUBTARGET_R3900 - /* 17 = Debug */ - case 17: - if (code == 0x00) - GPR[rt] = DEPC; - else - DEPC = GPR[rt]; - break; -#else - /* 17 = LLAddr R4000 VR4100 VR4300 */ -#endif - /* 18 = WatchLo R4000 VR4100 VR4300 */ - /* 19 = WatchHi R4000 VR4100 VR4300 */ - /* 20 = XContext R4000 VR4100 VR4300 */ - /* 26 = PErr or ECC R4000 VR4100 VR4300 */ - /* 27 = CacheErr R4000 VR4100 */ - /* 28 = TagLo R4000 VR4100 VR4300 */ - /* 29 = TagHi R4000 VR4100 VR4300 */ - /* 30 = ErrorEPC R4000 VR4100 VR4300 */ - if (STATE_VERBOSE_P(SD)) - sim_io_eprintf (SD, - "Warning: PC 0x%lx:interp.c decode_coproc DEADC0DE\n", - (unsigned long)cia); - GPR[rt] = 0xDEADC0DE; /* CPR[0,rd] */ - /* CPR[0,rd] = GPR[rt]; */ - default: - if (code == 0x00) - GPR[rt] = (signed_word) (signed32) COP0_GPR[rd]; - else - COP0_GPR[rd] = GPR[rt]; -#if 0 - if (code == 0x00) - sim_io_printf(sd,"Warning: MFC0 %d,%d ignored, PC=%08x (architecture specific)\n",rt,rd, (unsigned)cia); - else - sim_io_printf(sd,"Warning: MTC0 %d,%d ignored, PC=%08x (architecture specific)\n",rt,rd, (unsigned)cia); -#endif - } - } - else if (code == 0x10 && (tail & 0x3f) == 0x18) - { - /* ERET */ - if (SR & status_ERL) - { - /* Oops, not yet available */ - sim_io_printf(sd,"Warning: ERET when SR[ERL] set not handled yet"); - PC = EPC; - SR &= ~status_ERL; - } - else - { - PC = EPC; - SR &= ~status_EXL; - } - } - else if (code == 0x10 && (tail & 0x3f) == 0x10) - { - /* RFE */ -#ifdef SUBTARGET_R3900 - /* TX39: Copy IEp/KUp -> IEc/KUc, and IEo/KUo -> IEp/KUp */ - - /* shift IE/KU history bits right */ - SR = LSMASKED32(SR, 31, 4) | LSINSERTED32(LSEXTRACTED32(SR, 5, 2), 3, 0); - - /* TODO: CACHE register */ -#endif /* SUBTARGET_R3900 */ - } - else if (code == 0x10 && (tail & 0x3f) == 0x1F) - { - /* DERET */ - Debug &= ~Debug_DM; - DELAYSLOT(); - DSPC = DEPC; - } - else - sim_io_eprintf(sd,"Unrecognised COP0 instruction 0x%08X at PC = 0x%s : No handler present\n",instruction,pr_addr(cia)); - /* TODO: When executing an ERET or RFE instruction we should - clear LLBIT, to ensure that any out-standing atomic - read/modify/write sequence fails. */ - } - break; - - case 2: /* co-processor 2 */ - { - int handle = 0; - - - if(! handle) - { - sim_io_eprintf(sd, "COP2 instruction 0x%08X at PC = 0x%s : No handler present\n", - instruction,pr_addr(cia)); - } - } - break; - - case 1: /* should not occur (FPU co-processor) */ - case 3: /* should not occur (FPU co-processor) */ - SignalException(ReservedInstruction,instruction); - break; - } - - return; -} - - -/* This code copied from gdb's utils.c. Would like to share this code, - but don't know of a common place where both could get to it. */ - -/* Temporary storage using circular buffer */ -#define NUMCELLS 16 -#define CELLSIZE 32 -static char* -get_cell (void) -{ - static char buf[NUMCELLS][CELLSIZE]; - static int cell=0; - if (++cell>=NUMCELLS) cell=0; - return buf[cell]; -} - -/* Print routines to handle variable size regs, etc */ - -/* Eliminate warning from compiler on 32-bit systems */ -static int thirty_two = 32; - -char* -pr_addr(addr) - SIM_ADDR addr; -{ - char *paddr_str=get_cell(); - switch (sizeof(addr)) - { - case 8: - sprintf(paddr_str,"%08lx%08lx", - (unsigned long)(addr>>thirty_two),(unsigned long)(addr&0xffffffff)); - break; - case 4: - sprintf(paddr_str,"%08lx",(unsigned long)addr); - break; - case 2: - sprintf(paddr_str,"%04x",(unsigned short)(addr&0xffff)); - break; - default: - sprintf(paddr_str,"%x",addr); - } - return paddr_str; -} - -char* -pr_uword64(addr) - uword64 addr; -{ - char *paddr_str=get_cell(); - sprintf(paddr_str,"%08lx%08lx", - (unsigned long)(addr>>thirty_two),(unsigned long)(addr&0xffffffff)); - return paddr_str; -} - - -void -mips_core_signal (SIM_DESC sd, - sim_cpu *cpu, - sim_cia cia, - unsigned map, - int nr_bytes, - address_word addr, - transfer_type transfer, - sim_core_signals sig) -{ - const char *copy = (transfer == read_transfer ? "read" : "write"); - address_word ip = CIA_ADDR (cia); - - switch (sig) - { - case sim_core_unmapped_signal: - sim_io_eprintf (sd, "mips-core: %d byte %s to unmapped address 0x%lx at 0x%lx\n", - nr_bytes, copy, - (unsigned long) addr, (unsigned long) ip); - COP0_BADVADDR = addr; - SignalExceptionDataReference(); - break; - - case sim_core_unaligned_signal: - sim_io_eprintf (sd, "mips-core: %d byte %s to unaligned address 0x%lx at 0x%lx\n", - nr_bytes, copy, - (unsigned long) addr, (unsigned long) ip); - COP0_BADVADDR = addr; - if(transfer == read_transfer) - SignalExceptionAddressLoad(); - else - SignalExceptionAddressStore(); - break; - - default: - sim_engine_abort (sd, cpu, cia, - "mips_core_signal - internal error - bad switch"); - } -} - - -void -mips_cpu_exception_trigger(SIM_DESC sd, sim_cpu* cpu, address_word cia) -{ - ASSERT(cpu != NULL); - - if(cpu->exc_suspended > 0) - sim_io_eprintf(sd, "Warning, nested exception triggered (%d)\n", cpu->exc_suspended); - - PC = cia; - memcpy(cpu->exc_trigger_registers, cpu->registers, sizeof(cpu->exc_trigger_registers)); - cpu->exc_suspended = 0; -} - -void -mips_cpu_exception_suspend(SIM_DESC sd, sim_cpu* cpu, int exception) -{ - ASSERT(cpu != NULL); - - if(cpu->exc_suspended > 0) - sim_io_eprintf(sd, "Warning, nested exception signal (%d then %d)\n", - cpu->exc_suspended, exception); - - memcpy(cpu->exc_suspend_registers, cpu->registers, sizeof(cpu->exc_suspend_registers)); - memcpy(cpu->registers, cpu->exc_trigger_registers, sizeof(cpu->registers)); - cpu->exc_suspended = exception; -} - -void -mips_cpu_exception_resume(SIM_DESC sd, sim_cpu* cpu, int exception) -{ - ASSERT(cpu != NULL); - - if(exception == 0 && cpu->exc_suspended > 0) - { - /* warn not for breakpoints */ - if(cpu->exc_suspended != sim_signal_to_host(sd, SIM_SIGTRAP)) - sim_io_eprintf(sd, "Warning, resuming but ignoring pending exception signal (%d)\n", - cpu->exc_suspended); - } - else if(exception != 0 && cpu->exc_suspended > 0) - { - if(exception != cpu->exc_suspended) - sim_io_eprintf(sd, "Warning, resuming with mismatched exception signal (%d vs %d)\n", - cpu->exc_suspended, exception); - - memcpy(cpu->registers, cpu->exc_suspend_registers, sizeof(cpu->registers)); - } - else if(exception != 0 && cpu->exc_suspended == 0) - { - sim_io_eprintf(sd, "Warning, ignoring spontanous exception signal (%d)\n", exception); - } - cpu->exc_suspended = 0; -} - - -/*---------------------------------------------------------------------------*/ -/*> EOF interp.c <*/ |