Jeff Law
e4e1302293
* simops.c: Treat both operands as signed values for
...
"div" instruction.
Fixes another dozen c-torture execution failures.
1996-12-04 05:00:49 +00:00
Jeff Law
fcfaf40d78
* simops.c: Fix "mov imm8,an" and "mov imm16,dn".
...
Fixes 80 or so c-torture execution failures. 400 to go.
1996-12-02 19:35:55 +00:00
Jeff Law
b7b89deb44
* simops.c: Fix overflow computation for many instructions.
...
Fixes several hangs in the c-torture execution tests. Also fixes about
40 failures.
1996-12-02 08:35:20 +00:00
Jeff Law
af388638ae
* simops.c: Fix "movdm, an", "movbu dm, (an)", and "movhu dm, (an)".
...
Along with some compiler, bfd, assembler changes this fixes 90 or so
c-torture execution failures.
1996-12-02 07:38:10 +00:00
Jeff Law
c8f0171f5f
* simops.c: Fix "mov am, dn".
...
Fixes more c-torture problems.
1996-12-02 04:23:37 +00:00
Jeff Law
6db7fc49d2
* simops.c: Fix more bugs in "add imm,an" and
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"add imm,dn".
Fixes a half-dozen (of several hundred :( c-torture failures.
1996-12-01 23:10:04 +00:00
Jeff Law
6e7a01c144
* simops.c: Fix bugs in "movm" and "add imm,an".
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main(){write (0, "hello world\n", 13);} works!
1996-11-27 23:20:24 +00:00
Jeff Law
3bb3fe44e0
* simops.c: Don't lose the upper 24 bits of the return
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pointer in "call" and "calls" instructions. Rough cut
at emulated system calls.
1996-11-27 18:36:54 +00:00
Jeff Law
de0dce7c5c
* simops.c: Implement the remaining 5, 6 and 7 byte instructions.
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Everything except the extended instructions, the loop instructions,
trap, rti, and rtm.
1996-11-27 17:56:10 +00:00
Jeff Law
ecb4b5a357
* simops.c Implement remaining 4 byte instructions.
1996-11-27 17:19:44 +00:00
Jeff Law
2e35551c74
* simops.c Implement remaining 3 byte instructions.
...
Moving right along...
1996-11-27 16:51:30 +00:00
Jeff Law
f5f13c1d73
* simops.c: Implement remaining 2 byte instructions. Call
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abort for instructions we're not implementing now.
1996-11-27 16:25:03 +00:00
Jeff Law
707641f658
* simops.c: Implement lots of random instructions.
...
Implments most instructions with first nibble 0x0 - 0xe and
those with the first byte 0xf0 - 0xf2.
1996-11-27 07:20:36 +00:00
Jeff Law
1f3bea2169
* simops.c: Implement "movm" and "bCC" insns.
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Function calls and conditional branches work!
1996-11-27 05:29:49 +00:00
Jeff Law
92284aaa35
* mn10300_sim.h (_state): Add another register (MDR).
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(REG_MDR): Define.
* simops.c: Implement "cmp", "calls", "rets", "jmp" and
a few additional random insns.
We can now function calls. We get out of crt0 into main now, then lose
when calls are nested (because don't handle movm yet).
1996-11-27 00:53:25 +00:00
Jeff Law
73e6529893
* mn10300_sim.h (PSW_*): Define for CC status tracking.
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(REG_D0, REG_A0, REG_SP): Define.
* simops.c: Implement "add", "addc" and a few other random
instructions.
Starting to simulate instructions for the mn10300. Executes some of
the crt0 code now!
1996-11-26 22:58:24 +00:00
Jeff Law
b5f831ac51
* gencode.c, interp.c: Snapshot current simulator code.
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(crude) hashing works, along with dispatch to the OP_* functions.
1996-11-26 20:40:19 +00:00
Jeff Law
05ccbdfdd2
* Makefile.in, config.in, configure, configure.in: New files.
...
* gencode.c, interp.c, mn10300_sim.h, simops.c: New files.
Skeleton mn10300 simulator
1996-11-25 19:52:08 +00:00
