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Mon Sep 9 20:50:46 1996 Jeffrey A Law (law@cygnus.com)
* interp.c (hash): Make this an inline function
when compiling with GCC. Simplify.
* simpos.c: Explicitly include "sys/syscall.h". Remove
some #if 0'd code. Enable more emulated syscalls.
Wed Sep 4 01:48:55 1996 Jeffrey A Law (law@cygnus.com)
* interp.c: Fix sign bit handling for add and sub instructions.
Tue Sep 3 10:20:30 1996 Jeffrey A Law (law@cygnus.com)
* gencode.c: Fix various indention & style problems.
Remove test code. Remove #if 0 code.
* interp.c: Provide prototypes for all static functions.
Fix minor indention problems.
(sim_open, sim_resume): Remove unused variables.
(sim_read): Return type is "int".
* simops.c: Remove unused variables.
(divh): Make result of divide-by-zero zero.
(setf): Initialize result to keep compiler quiet.
(sar instructions): These just clear the overflow bit.
* v850_sim.h: Provide prototypes for put_byte, put_half
and put_word.
* interp.c: OP should be an array of 32bit operands!
(v850_callback): Declare.
(do_format_5): Fix extraction of OP[0].
(sim_size): Remove debugging printf.
(sim_set_callbacks): Do something useful.
(sim_stop_reason): Gross hacks to get c-torture running.
* simops.c: Simplify code for computing targets of bCC
insns. Invert 's' bit if 'ov' bit is set for some
instructions. Fix 'cy' bit handling for numerous
instructions. Make the simulator stop when a halt
instruction is encountered. Very crude support for
emulated syscalls (trap 0).
* v850_sim.h: Include "callback.h" and declare
v850_callback. Items in the operand array are 32bits.
Sun Sep 1 22:35:35 1996 Jeffrey A Law (law@cygnus.com)
* interp.c (sim_resume): Fix code to check for a format 3
opcode.
* simops.c: bCC insns only argument is a constant, not a
register value (duh...)
Fri Aug 30 10:33:49 1996 Jeffrey A Law (law@cygnus.com)
* simops.c: Fix "not1" and "set1".
* simops.c: Don't forget to initialize temp for
"ld.h" and "ld.w"
* interp.c: Remove various debugging printfs.
* simops.c: Fix satadd, satsub boundary case handling.
* interp.c (hash): Fix.
* interp.c (do_format_8): Get operands correctly and
call the target function.
* simops.c: Rough cut at "clr1", "not1", "set1", and "tst1".
Thu Aug 29 13:53:29 1996 Jeffrey A Law (law@cygnus.com)
* interp.c (do_format_4): Get operands correctly and
call the target function.
* simops.c: Rough cut at "sld.b", "sld.h", "sld.w", "sst.b",
"sst.h", and "sst.w".
* v850_sim.h: The V850 doesn't have split I&D spaces. Change
accordingly. Remove many unused definitions.
* interp.c: The V850 doesn't have split I&D spaces. Change
accordingly.
(get_longlong, get_longword, get_word): Deleted.
(write_longlong, write_longword, write_word): Deleted.
(get_operands): Deleted.
(get_byte, get_half, get_word): New functions.
(put_byte, put_half, put_word): New functions.
* simops.c: Remove unused functions. Rough cut at
"ld.b", "ld.h", "ld.w", "st.b", "st.h", "st.w" insns.
* v850_sim.h (struct _state): Remove "psw" field. Add
"sregs" field.
(PSW): Remove bogus definition.
* simops.c: Change condition code handling to use the psw
register within the sregs array. Handle "ldsr" and "stsr".
* simops.c: Handle "satadd", "satsub", "satsubi", "satsubr".
* interp.c (do_format_5): Get operands correctly and
call the target function.
(sim_resume): Don't do a PC update for format 5 instructions.
* simops.c: Handle "jarl" and "jmp" instructions.
* simops.c: Fix minor typos. Handle "cmp", "setf", "tst"
"di", and "ei" instructions correctly.
* interp.c (do_format_3): Get operands correctly and call
the target function.
* simops.c: Handle bCC instructions.
* simops.c: Add condition code handling to shift insns.
Fix minor typos in condition code handling for other insns.
* Makefile.in: Fix typo.
* simops.c: Add condition code handling to "sub" "subr" and
"divh" instructions.
* interp.c (hash): Update to be more accurate.
(lookup_hash): Call hash rather than computing the hash
code here.
(do_format_1_2): Handle format 1 and format 2 instructions.
Get operands correctly and call the target function.
(do_format_6): Get operands correctly and call the target
function.
(do_formats_9_10): Rough cut so shift ops will work.
(sim_resume): Tweak to deal with format 1 and format 2
handling in a single funtion. Don't update the PC
for format 3 insns. Fix typos.
* simops.c: Slightly reorganize. Add condition code handling
to "add", "addi", "and", "andi", "or", "ori", "xor", "xori"
and "not" instructions.
* v850_sim.h (reg_t): Registers are 32bits.
(_state): The V850 has 32 general registers. Add a 32bit
psw and pc register too. Add accessor macros
* Makefile.in, interp.c, v850_sim.h: Bring over endianness
changes from the d10v simulator.
* simops.c: Add shift support.
* simops.c: Add multiply & divide support. Abort for system
instructions.
* simops.c: Add logicals, mov, movhi, movea, add, addi, sub
and subr. No condition codes yet.
Wed Aug 28 13:53:22 1996 Jeffrey A Law (law@cygnus.com)
* ChangeLog, Makefile.in, configure, configure.in, v850_sim.h,
gencode.c, interp.c, simops.c: Created.
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