(OP_300, OP_400, OP_500, OP_380, OP_480, OP_501): Displacement
is zero extended for sst/sld instructions.
* v850_sim.h (SEX7): Delete. It's no longer needed (and it
was incorrect anyway).
So we properly simulate sst/sld instructions.
autoconf.
* gencode.c (write_opcodes): Pad operands field to account for
MSVC braindamage.
* simops.c: Include errno.h. Exclude SYS_chown, since MSVC
doesn't support it. (Why is this here in the first place?!?)
* v850_sim.h: Get rid of 64 bit defs. Also, get rid of #elif's.
Change number of operands in struct simops from 9 to 6. Define
SIGTRAP and SIGQUIT for MSVC.
* (map): Add support for external mem in the 1->2 meg range.
Also, abort() when memory access is way out of bounds. (Better to
die than to give wrong result. (This will be fixed later.))
* (sim_size): MEM_SIZE is now bytes, not shift factor.
and patterns.
* interp.c (sim_resume): Save and restore PC from the appropriate
register.
* (sim_fetch_register sim_store_register): Fix byte-order problem
with reading and writing registers.
* simops.c (OP_FFFF): Implement pseudo-breakpoint insn.
when compiling with GCC. Simplify.
* simpos.c: Explicitly include "sys/syscall.h". Remove
some #if 0'd code. Enable more emulated syscalls.
Checking in more stuff.
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.
Cleaning up.
(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.
Fixes & syscall stuff.
"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".
(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
Fixing lots of stuff. Starting to add condition code support. Basically
check pointing the work to date.
Michael Meissner
David Edelsohn
Gavin Romig-Koch
Jeff Law
Stu Grossman