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Merge pull request #22 from shanshe/wip-crap

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Added some more FPU opcodes and fix 6a opcode to 6c
This commit is contained in:
beeanyew
2021-05-09 16:32:55 +02:00
committed by GitHub
parent 3ea3c81c4d 13cf91d12c
commit 8a5bbf162f
1 changed files with 20 additions and 1 deletions
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21
m68kfpu.c
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@@ -1446,6 +1446,7 @@ static void fpgen_rm_reg(uint16 w2)
case 0x45: // FDSQRT
case 0x41: // FSSQRT
case 0x04: // FSQRT
case 0x05: // FSQRT
{
REG_FP[dst] = floatx80_sqrt(source, &status);
SET_CONDITION_CODES(REG_FP[dst]);
@@ -1453,6 +1454,7 @@ static void fpgen_rm_reg(uint16 w2)
break;
}
case 0x06: // FLOGNP1
case 0x07: // FLOGNP1
{
REG_FP[dst] = floatx80_lognp1 (source, &status);
SET_CONDITION_CODES(REG_FP[dst]);
@@ -1474,6 +1476,7 @@ static void fpgen_rm_reg(uint16 w2)
break;
}
case 0x0a: // FATAN
case 0x0b: // FATAN
{
REG_FP[dst] = floatx80_atan(source, &status);
SET_CONDITION_CODES(REG_FP[dst]);
@@ -1523,6 +1526,7 @@ static void fpgen_rm_reg(uint16 w2)
break;
}
case 0x12: // FTENTOX
case 0x13: // FTENTOX
{
REG_FP[dst] = floatx80_tentox(source, &status);
SET_CONDITION_CODES(REG_FP[dst]);
@@ -1544,6 +1548,7 @@ static void fpgen_rm_reg(uint16 w2)
break;
}
case 0x16: // FLOG2
case 0x17: // FLOG2
{
REG_FP[dst] = floatx80_log2(source, &status);
SET_CONDITION_CODES(REG_FP[dst]);
@@ -1570,6 +1575,7 @@ static void fpgen_rm_reg(uint16 w2)
case 0x5e: // FDNEG
case 0x5a: // FSNEG
case 0x1a: // FNEG
case 0x1b: // FNEG
{
REG_FP[dst] = source;
REG_FP[dst].high ^= 0x8000;
@@ -1678,9 +1684,16 @@ static void fpgen_rm_reg(uint16 w2)
USE_CYCLES(11); // ? (value is from FMUL)
break;
}
case 0x6a: // FDSUB
case 0x6c: // FDSUB
case 0x68: // FSSUB
case 0x28: // FSUB
case 0x29: // FSUB
case 0x2a: // FSUB
case 0x2b: // FSUB
case 0x2c: // FSUB
case 0x2d: // FSUB
case 0x2e: // FSUB
case 0x2f: // FSUB
{
REG_FP[dst] = floatx80_sub(REG_FP[dst], source, &status);
SET_CONDITION_CODES(REG_FP[dst]);
@@ -1704,6 +1717,9 @@ static void fpgen_rm_reg(uint16 w2)
break;
}
case 0x38: // FCMP
case 0x39: // FCMP
case 0x3c: // FCMP
case 0x3d: // FCMP
{
floatx80 res;
res = floatx80_sub(REG_FP[dst], source, &status);
@@ -1712,6 +1728,9 @@ static void fpgen_rm_reg(uint16 w2)
break;
}
case 0x3a: // FTST
case 0x3b: // FTST
case 0x3e: // FTST
case 0x3f: // FTST
{
floatx80 res;
res = source;