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* compile.c: Add absented opcodes: LDC, STC, EEPMOV, TAS.

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This commit is contained in:
Andrey Volkov
2002-05-17 19:22:14 +00:00
parent fc97460264
commit 6147b1f62b
2 changed files with 92 additions and 23 deletions
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4
sim/h8300/ChangeLog
View File

@ -1,3 +1,7 @@
2002-05-17 Andrey Volkov (avolkov@transas.com)
* compile.c: Add absented opcodes: LDC, STC, EEPMOV, TAS.
2002-05-17 Andrey Volkov (avolkov@transas.com) 2002-05-17 Andrey Volkov (avolkov@transas.com)
* compile.c: Add support of EXR register * compile.c: Add support of EXR register

111
sim/h8300/compile.c
View File

@ -942,6 +942,28 @@ sim_stop (sd)
return 1; return 1;
} }
#define R0_REGNUM 0
#define R1_REGNUM 1
#define R2_REGNUM 2
#define R3_REGNUM 3
#define R4_REGNUM 4
#define R5_REGNUM 5
#define R6_REGNUM 6
#define R7_REGNUM 7
#define SP_REGNUM R7_REGNUM /* Contains address of top of stack */
#define FP_REGNUM R6_REGNUM /* Contains address of executing
* stack frame */
#define CCR_REGNUM 8 /* Contains processor status */
#define PC_REGNUM 9 /* Contains program counter */
#define CYCLE_REGNUM 10
#define EXR_REGNUM 11
#define INST_REGNUM 12
#define TICK_REGNUM 13
void void
sim_resume (sd, step, siggnal) sim_resume (sd, step, siggnal)
SIM_DESC sd; SIM_DESC sd;
@ -1115,6 +1137,37 @@ sim_resume (sd, step, siggnal)
SET_L_REG (code->dst.reg, res); SET_L_REG (code->dst.reg, res);
goto just_flags_log32; goto just_flags_log32;
case O (O_EEPMOV, SB):
case O (O_EEPMOV, SW):
if(h8300hmode||h8300smode)
{
register unsigned char *_src,*_dst;
unsigned int count = (code->opcode==O(O_EEPMOV, SW))?cpu.regs[R4_REGNUM]&0xffff:
cpu.regs[R4_REGNUM]&0xff;
_src = cpu.regs[R5_REGNUM] < memory_size ? cpu.memory+cpu.regs[R5_REGNUM] :
cpu.eightbit + (cpu.regs[R5_REGNUM] & 0xff);
if((_src+count)>=(cpu.memory+memory_size))
{
if((_src+count)>=(cpu.eightbit+0x100))
goto illegal;
}
_dst = cpu.regs[R6_REGNUM] < memory_size ? cpu.memory+cpu.regs[R6_REGNUM] :
cpu.eightbit + (cpu.regs[R6_REGNUM] & 0xff);
if((_dst+count)>=(cpu.memory+memory_size))
{
if((_dst+count)>=(cpu.eightbit+0x100))
goto illegal;
}
memcpy(_dst,_src,count);
cpu.regs[R5_REGNUM]+=count;
cpu.regs[R6_REGNUM]+=count;
cpu.regs[R4_REGNUM]&=(code->opcode==O(O_EEPMOV, SW))?(~0xffff):(~0xff);
cycles += 2*count;
goto next;
}
goto illegal;
case O (O_ADDS, SL): case O (O_ADDS, SL):
SET_L_REG (code->dst.reg, SET_L_REG (code->dst.reg,
@ -1194,10 +1247,28 @@ sim_resume (sd, step, siggnal)
SET_L_REG (code->dst.reg, res); SET_L_REG (code->dst.reg, res);
goto just_flags_inc32; goto just_flags_inc32;
#define GET_CCR(x) BUILDSR();x = cpu.ccr #define GET_CCR(x) BUILDSR();x = cpu.ccr
#define GET_EXR(x) BUILDEXR();x = cpu.exr #define GET_EXR(x) BUILDEXR();x = cpu.exr
case O (O_LDC, SB):
case O (O_LDC, SW):
res = fetch(&code->src);
goto setc;
case O (O_STC, SB):
case O (O_STC, SW):
if(code->src.type==OP_CCR)
{
GET_CCR(res);
}
else if(code->src.type==OP_EXR && h8300smode)
{
GET_EXR(res);
}
else
goto illegal;
store (&code->dst, res);
goto next;
case O (O_ANDC, SB): case O (O_ANDC, SB):
if(code->dst.type==OP_CCR) if(code->dst.type==OP_CCR)
{ {
@ -1462,6 +1533,22 @@ sim_resume (sd, step, siggnal)
MOP (0, 0); MOP (0, 0);
break; break;
case O (O_TAS, SB):
if( !h8300smode || code->src.type != X (OP_REG, SL) )
goto illegal;
switch(code->src.reg)
{
case R0_REGNUM:
case R1_REGNUM:
case R4_REGNUM:
case R5_REGNUM:
break;
default:
goto illegal;
}
res = fetch (&code->src);
store (&code->src,res|0x80);
goto just_flags_log8;
case O (O_DIVU, SB): case O (O_DIVU, SB):
{ {
@ -1842,28 +1929,6 @@ sim_read (sd, addr, buffer, size)
} }
#define R0_REGNUM 0
#define R1_REGNUM 1
#define R2_REGNUM 2
#define R3_REGNUM 3
#define R4_REGNUM 4
#define R5_REGNUM 5
#define R6_REGNUM 6
#define R7_REGNUM 7
#define SP_REGNUM R7_REGNUM /* Contains address of top of stack */
#define FP_REGNUM R6_REGNUM /* Contains address of executing
* stack frame */
#define CCR_REGNUM 8 /* Contains processor status */
#define PC_REGNUM 9 /* Contains program counter */
#define CYCLE_REGNUM 10
#define EXR_REGNUM 11 /* Contains extended processor status */
#define INST_REGNUM 11
#define TICK_REGNUM 12
int int
sim_store_register (sd, rn, value, length) sim_store_register (sd, rn, value, length)
SIM_DESC sd; SIM_DESC sd;