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This commit is contained in:
David Haywood 2014-12-12 20:48:01 +00:00
parent eaa412e0ab
commit 85c4b03f52
1 changed files with 90 additions and 16 deletions
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106
src/emu/cpu/arcompact/arcompactdasm_ops.c
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@ -344,7 +344,7 @@ int arcompact_handle02_dasm(DASM_OPS_32)
// fedc ba98 7654 3210 fedc ba98 7654 3210 // fedc ba98 7654 3210 fedc ba98 7654 3210
// fields // fields
// 0001 0bbb ssss ssss SBBB DaaZ ZXAA AAAA // 0001 0bbb ssss ssss SBBB DaaZ ZXAA AAAA
int size = 4;
int A = (op & 0x0000003f) >> 0; //op &= ~0x0000003f; int A = (op & 0x0000003f) >> 0; //op &= ~0x0000003f;
int X = (op & 0x00000040) >> 6; //op &= ~0x00000040; int X = (op & 0x00000040) >> 6; //op &= ~0x00000040;
@ -359,6 +359,13 @@ int arcompact_handle02_dasm(DASM_OPS_32)
int breg = b | (B << 3); int breg = b | (B << 3);
int sdat = s | (S << 8); // todo - signed int sdat = s | (S << 8); // todo - signed
UINT32 limm = 0;
if (breg == LIMM_REG)
{
GET_LIMM_32;
size = 8;
}
output += sprintf( output, "LD"); output += sprintf( output, "LD");
output += sprintf( output, "%s", datasize[Z]); output += sprintf( output, "%s", datasize[Z]);
output += sprintf( output, "%s", dataextend[X]); output += sprintf( output, "%s", dataextend[X]);
@ -367,23 +374,59 @@ int arcompact_handle02_dasm(DASM_OPS_32)
output += sprintf( output, " "); output += sprintf( output, " ");
output += sprintf( output, "%s, ", regnames[A]); output += sprintf( output, "%s, ", regnames[A]);
output += sprintf( output, "["); output += sprintf( output, "[");
output += sprintf( output, "%s, ", regnames[breg]); if (breg == LIMM_REG) output += sprintf( output, "(%08x), ", limm);
else output += sprintf( output, "%s, ", regnames[breg]);
output += sprintf( output, "%d", sdat); output += sprintf( output, "%d", sdat);
output += sprintf( output, "]"); output += sprintf( output, "]");
return 4; return size;
} }
int arcompact_handle03_dasm(DASM_OPS_32) int arcompact_handle03_dasm(DASM_OPS_32)
{ {
int size = 4;
// bitpos // bitpos
// 11111 111 11111111 0 000 000000 0 00 00 0 // 1111 1111 1111 1111 0000 0000 0000 0000
// fedcb a98 76543210 f edc ba9876 5 43 21 0 // fedc ba98 7654 3210 fedc ba98 7654 3210
// fields // fields
// 00011 bbb ssssssss S BBB CCCCCC D aa ZZ R // 0001 1bbb ssss ssss SBBB CCCC CCDa aZZR
int B = (op & 0x00007000) >> 12;// op &= ~0x00007000;
int S = (op & 0x00008000) >> 15;// op &= ~0x00008000;
int s = (op & 0x00ff0000) >> 16;// op &= ~0x00ff0000;
int b = (op & 0x07000000) >> 24;// op &= ~0x07000000;
print("ST r+o (%08x)", op ); int breg = b | (B << 3);
return 4; int sdat = s | (S << 8); // todo - signed
int R = (op & 0x00000001) >> 0; op &= ~0x00000001;
int Z = (op & 0x00000006) >> 1; op &= ~0x00000006;
int a = (op & 0x00000018) >> 3; op &= ~0x00000018;
int D = (op & 0x00000020) >> 5; op &= ~0x00000020;
int C = (op & 0x00000fc0) >> 6; op &= ~0x00000fc0;
UINT32 limm = 0;
if (breg == LIMM_REG)
{
GET_LIMM_32;
size = 8;
}
output += sprintf( output, "ST");
output += sprintf( output, "%s", datasize[Z]);
output += sprintf( output, "%s", addressmode[a]);
output += sprintf( output, "%s", cachebit[D]);
output += sprintf( output, " ");
output += sprintf( output, "%s, ", regnames[C]);
if (breg == LIMM_REG) output += sprintf( output, "(%08x), ", limm);
else output += sprintf( output, "%s, ", regnames[breg]);
output += sprintf( output, "%d", sdat);
if (R) output += sprintf( output, "(reserved bit set)");
return size;
} }
@ -703,16 +746,47 @@ int arcompact_handle04_2f_3f_05_dasm(DASM_OPS_32) { print("BRK (%08x)", op); re
// 0010 0bbb aa11 0ZZX DBBB CCCC CCAA AAAA // 0010 0bbb aa11 0ZZX DBBB CCCC CCAA AAAA
// note, bits 11 0ZZX are part of the sub-opcode # already - this is a special encoding // note, bits 11 0ZZX are part of the sub-opcode # already - this is a special encoding
int arcompact_handle04_30_dasm(DASM_OPS_32) { print("LD r-r (basecase 0x30) (%08x)", op); return 4;} int arcompact_handle04_3x_helper_dasm(char *output, offs_t pc, UINT32 op, const UINT8* oprom, int dsize, int extend)
{
int size = 4;
output += sprintf(output, "LD");
output += sprintf(output, "%s", datasize[dsize]);
output += sprintf(output, "%s", dataextend[extend]);
int mode = (op & 0x00c00000) >> 22; op &= ~0x00c00000;
int b = (op & 0x07000000) >> 24; op &= ~0x07000000;
int B = (op & 0x00007000) >> 12; op &= ~0x00007000;
int breg = b | (B << 3);
int D = (op & 0x00008000) >> 15;op &= ~0x00008000;
int C = (op & 0x00000fc0) >> 6; op &= ~0x00000fc0;
int A = (op & 0x0000003f) >> 0; op &= ~0x0000003f;
output += sprintf(output, "%s", addressmode[mode]);
output += sprintf(output, "%s", cachebit[D]);
output += sprintf( output, "DST(%s)", regnames[A]);
output += sprintf( output, "SRC1(%s)", regnames[breg]);
output += sprintf( output, "SRC2(%s)", regnames[C]);
return size;
}
int arcompact_handle04_30_dasm(DASM_OPS_32) { return arcompact_handle04_3x_helper_dasm(output,pc,op,oprom,0,0); }
// ZZ value of 0x0 with X of 1 is illegal // ZZ value of 0x0 with X of 1 is illegal
int arcompact_handle04_31_dasm(DASM_OPS_32) { print("LD r-r (illegal 0x31) (%08x)", op); return 4;} int arcompact_handle04_31_dasm(DASM_OPS_32) { return arcompact_handle04_3x_helper_dasm(output,pc,op,oprom,0,1); }
int arcompact_handle04_32_dasm(DASM_OPS_32) { print("LD r-r (basecase 0x32) (%08x)", op); return 4;} int arcompact_handle04_32_dasm(DASM_OPS_32) { return arcompact_handle04_3x_helper_dasm(output,pc,op,oprom,1,0); }
int arcompact_handle04_33_dasm(DASM_OPS_32) { print("LD r-r (basecase 0x33) (%08x)", op); return 4;} int arcompact_handle04_33_dasm(DASM_OPS_32) { return arcompact_handle04_3x_helper_dasm(output,pc,op,oprom,1,1); }
int arcompact_handle04_34_dasm(DASM_OPS_32) { print("LD r-r (basecase 0x34) (%08x)", op); return 4;} int arcompact_handle04_34_dasm(DASM_OPS_32) { return arcompact_handle04_3x_helper_dasm(output,pc,op,oprom,2,0); }
int arcompact_handle04_35_dasm(DASM_OPS_32) { print("LD r-r (basecase 0x35) (%08x)", op); return 4;} int arcompact_handle04_35_dasm(DASM_OPS_32) { return arcompact_handle04_3x_helper_dasm(output,pc,op,oprom,2,1); }
// ZZ value of 0x3 is illegal // ZZ value of 0x3 is illegal
int arcompact_handle04_36_dasm(DASM_OPS_32) { print("LD r-r (illegal 0x36) (%08x)", op); return 4;} int arcompact_handle04_36_dasm(DASM_OPS_32) { return arcompact_handle04_3x_helper_dasm(output,pc,op,oprom,3,0); }
int arcompact_handle04_37_dasm(DASM_OPS_32) { print("LD r-r (illegal 0x37) (%08x)", op); return 4;} int arcompact_handle04_37_dasm(DASM_OPS_32) { return arcompact_handle04_3x_helper_dasm(output,pc,op,oprom,3,1); }