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* interp.c (do_format_4): Get operands correctly and

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call the target function.
        * simops.c: Rough cut at "sld.b", "sld.h", "sld.w", "sst.b",
        "sst.h", and "sst.w".
This commit is contained in:
Jeff Law 1996-08-30 05:49:07 +00:00
parent 28647e4c0c
commit 3cb6bf7818
3 changed files with 61 additions and 0 deletions
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5
sim/v850/ChangeLog
View File

@ -1,5 +1,10 @@
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

6
sim/v850/interp.c
View File

@ -154,7 +154,13 @@ static void
do_format_4 (insn)
uint32 insn;
{
struct hash_entry *h;
printf("format 4 0x%x\n", insn);
h = lookup_hash (insn);
OP[0] = (insn >> 11) & 0x1f;
OP[1] = (insn & 0x7f);
(h->ops->func) ();
}
static void

50
sim/v850/simops.c
View File

@ -6,36 +6,86 @@
void
OP_300 ()
{
unsigned int op0, op1, op2;
int result, temp;
temp = OP[1];
temp = (temp << 25) >> 25;
op2 = temp;
result = get_byte (State.mem + State.regs[30] + op2);
result = (result << 24) >> 24;
State.regs[OP[0]] = result;
}
/* sld.h */
void
OP_400 ()
{
unsigned int op0, op1, op2;
int result, temp;
temp = OP[1];
temp = (temp << 25) >> 25;
op2 = temp << 1;
result = get_half (State.mem + State.regs[30] + op2);
result = (result << 16) >> 16;
State.regs[OP[0]] = result;
}
/* sld.w */
void
OP_500 ()
{
unsigned int op0, op1, op2;
int result, temp;
temp = OP[1];
temp = (temp << 25) >> 25;
op2 = temp << 2;
result = get_word (State.mem + State.regs[30] + op2);
State.regs[OP[0]] = result;
}
/* sst.b */
void
OP_380 ()
{
unsigned int op0, op1, op2;
int result, temp;
op0 = State.regs[OP[0]];
temp = OP[1];
temp = (temp << 25) >> 25;
op1 = temp;
put_byte (State.mem + State.regs[30] + op1, op0);
}
/* sst.h */
void
OP_480 ()
{
unsigned int op0, op1, op2;
int result, temp;
op0 = State.regs[OP[0]];
temp = OP[1];
temp = (temp << 25) >> 25;
op1 = temp << 1;
put_half (State.mem + State.regs[30] + op1, op0);
}
/* sst.w */
void
OP_501 ()
{
unsigned int op0, op1, op2;
int result, temp;
op0 = State.regs[OP[0]];
temp = OP[1];
temp = (temp << 25) >> 25;
op1 = temp << 2;
put_word (State.mem + State.regs[30] + op1, op0);
}
/* ld.b */