/
Cbopcode.ZC
executable file
·1371 lines (1116 loc) · 31.4 KB
/
Cbopcode.ZC
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switch (cb_opcode)
{
case 0:
FCarry = ((registerB & 0x80) == 0x80);
registerB = ((registerB << 1) & 0xFF) + t((FCarry),1,0);
FHalfCarry = FSubtract = FALSE;
FZero = (registerB == 0);
break;
case 1:
FCarry = ((registerC & 0x80) == 0x80);
registerC = ((registerC << 1) & 0xFF) + t((FCarry),1,0);
FHalfCarry = FSubtract = FALSE;
FZero = (registerC == 0);
break;
case 2:
FCarry = ((registerD & 0x80) == 0x80);
registerD = ((registerD << 1) & 0xFF) + t((FCarry),1,0);
FHalfCarry = FSubtract = FALSE;
FZero = (registerD == 0);
break;
case 3:
FCarry = ((registerE & 0x80) == 0x80);
registerE = ((registerE << 1) & 0xFF) + t((FCarry),1,0);
FHalfCarry = FSubtract = FALSE;
FZero = (registerE == 0);
break;
case 4:
FCarry = ((registersHL & 0x8000) == 0x8000);
registersHL = ((registersHL << 1) & 0xFE00) + t((FCarry),0x100,0) + (registersHL & 0xFF);
FHalfCarry = FSubtract = FALSE;
FZero = (registersHL <= 0xFF);
break;
case 5:
FCarry = ((registersHL & 0x80) == 0x80);
registersHL = (registersHL & 0xFF00) + ((registersHL << 1) & 0xFF) + t((FCarry),1,0);
FHalfCarry = FSubtract = FALSE;
FZero = ((registersHL & 0xFF) == 0x00);
break;
case 6:
temp_var = memoryRead(registersHL);
FCarry = ((temp_var & 0x80) == 0x80);
temp_var = ((temp_var << 1) & 0xFF) + t((FCarry),1,0);
memoryWrite(registersHL, temp_var);
FHalfCarry = FSubtract = FALSE;
FZero = (temp_var == 0x00);
break;
case 7:
FCarry = ((registerA & 0x80) == 0x80);
registerA = ((registerA << 1) & 0xFF) + t((FCarry),1,0);
FHalfCarry = FSubtract = FALSE;
FZero = (registerA == 0x00);
break;
case 8:
FCarry = ((registerB & 0x01) == 0x01);
registerB = t((FCarry),0x80,0) + (registerB >> 1);
FHalfCarry = FSubtract = FALSE;
FZero = (registerB == 0);
break;
case 9:
FCarry = ((registerC & 0x01) == 0x01);
registerC = t((FCarry),0x80,0) + (registerC >> 1);
FHalfCarry = FSubtract = FALSE;
FZero = (registerC == 0);
break;
case 10:
FCarry = ((registerD & 0x01) == 0x01);
registerD = t((FCarry),0x80,0) + (registerD >> 1);
FHalfCarry = FSubtract = FALSE;
FZero = (registerD == 0);
break;
case 11:
FCarry = ((registerE & 0x01) == 0x01);
registerE = t((FCarry),0x80,0) + (registerE >> 1);
FHalfCarry = FSubtract = FALSE;
FZero = (registerE == 0);
break;
case 12:
FCarry = ((registersHL & 0x0100) == 0x0100);
registersHL = t((FCarry),0x8000,0) + ((registersHL >> 1) & 0xFF00) + (registersHL & 0xFF);
FHalfCarry = FSubtract = FALSE;
FZero = (registersHL <= 0xFF);
break;
case 13:
FCarry = ((registersHL & 0x01) == 0x01);
registersHL = (registersHL & 0xFF00) + t((FCarry),0x80,0) + ((registersHL & 0xFF) >> 1);
FHalfCarry = FSubtract = FALSE;
FZero = ((registersHL & 0xFF) == 0x00);
break;
case 14:
temp_var = memoryRead(registersHL);
FCarry = ((temp_var & 0x01) == 0x01);
temp_var = t((FCarry),0x80,0) + (temp_var >> 1);
memoryWrite(registersHL, temp_var);
FHalfCarry = FSubtract = FALSE;
FZero = (temp_var == 0x00);
break;
case 15:
FCarry = ((registerA & 0x01) == 0x01);
registerA = t((FCarry),0x80,0) + (registerA >> 1);
FHalfCarry = FSubtract = FALSE;
FZero = (registerA == 0x00);
break;
case 16:
newFCarry = ((registerB & 0x80) == 0x80);
registerB = ((registerB << 1) & 0xFF) + t((FCarry),1,0);
FCarry = newFCarry;
FHalfCarry = FSubtract = FALSE;
FZero = (registerB == 0);
break;
case 17:
newFCarry = ((registerC & 0x80) == 0x80);
registerC = ((registerC << 1) & 0xFF) + t((FCarry),1,0);
FCarry = newFCarry;
FHalfCarry = FSubtract = FALSE;
FZero = (registerC == 0);
break;
case 18:
newFCarry = ((registerD & 0x80) == 0x80);
registerD = ((registerD << 1) & 0xFF) + t((FCarry),1,0);
FCarry = newFCarry;
FHalfCarry = FSubtract = FALSE;
FZero = (registerD == 0);
break;
case 19:
newFCarry = ((registerE & 0x80) == 0x80);
registerE = ((registerE << 1) & 0xFF) + t((FCarry),1,0);
FCarry = newFCarry;
FHalfCarry = FSubtract = FALSE;
FZero = (registerE == 0);
break;
case 20:
newFCarry = ((registersHL & 0x8000) == 0x8000);
registersHL = ((registersHL << 1) & 0xFE00) + t((FCarry),0x100,0) + (registersHL & 0xFF);
FCarry = newFCarry;
FHalfCarry = FSubtract = FALSE;
FZero = (registersHL <= 0xFF);
break;
case 21:
newFCarry = ((registersHL & 0x80) == 0x80);
registersHL = (registersHL & 0xFF00) + ((registersHL << 1) & 0xFF) + t((FCarry),1,0);
FCarry = newFCarry;
FHalfCarry = FSubtract = FALSE;
FZero = ((registersHL & 0xFF) == 0x00);
break;
case 22:
temp_var = memoryRead(registersHL);
newFCarry = ((temp_var & 0x80) == 0x80);
temp_var = ((temp_var << 1) & 0xFF) + t((FCarry),1,0);
FCarry = newFCarry;
memoryWrite(registersHL, temp_var);
FHalfCarry = FSubtract = FALSE;
FZero = (temp_var == 0x00);
break;
case 23:
newFCarry = ((registerA & 0x80) == 0x80);
registerA = ((registerA << 1) & 0xFF) + t((FCarry),1,0);
FCarry = newFCarry;
FHalfCarry = FSubtract = FALSE;
FZero = (registerA == 0x00);
break;
case 24:
newFCarry = ((registerB & 0x01) == 0x01);
registerB = t((FCarry),0x80,0) + (registerB >> 1);
FCarry = newFCarry;
FHalfCarry = FSubtract = FALSE;
FZero = (registerB == 0);
break;
case 25:
newFCarry = ((registerC & 0x01) == 0x01);
registerC = t((FCarry),0x80,0) + (registerC >> 1);
FCarry = newFCarry;
FHalfCarry = FSubtract = FALSE;
FZero = (registerC == 0);
break;
case 26:
newFCarry = ((registerD & 0x01) == 0x01);
registerD = t((FCarry),0x80,0) + (registerD >> 1);
FCarry = newFCarry;
FHalfCarry = FSubtract = FALSE;
FZero = (registerD == 0);
break;
case 27:
newFCarry = ((registerE & 0x01) == 0x01);
registerE = t((FCarry),0x80,0) + (registerE >> 1);
FCarry = newFCarry;
FHalfCarry = FSubtract = FALSE;
FZero = (registerE == 0);
break;
case 28:
newFCarry = ((registersHL & 0x0100) == 0x0100);
registersHL = t((FCarry),0x8000,0) + ((registersHL >> 1) & 0xFF00) + (registersHL & 0xFF);
FCarry = newFCarry;
FHalfCarry = FSubtract = FALSE;
FZero = (registersHL <= 0xFF);
break;
case 29:
newFCarry = ((registersHL & 0x01) == 0x01);
registersHL = (registersHL & 0xFF00) + t((FCarry),0x80,0) + ((registersHL & 0xFF) >> 1);
FCarry = newFCarry;
FHalfCarry = FSubtract = FALSE;
FZero = ((registersHL & 0xFF) == 0x00);
break;
case 30:
temp_var = memoryRead(registersHL);
newFCarry = ((temp_var & 0x01) == 0x01);
temp_var = t((FCarry),0x80,0) + (temp_var >> 1);
FCarry = newFCarry;
memoryWrite(registersHL, temp_var);
FHalfCarry = FSubtract = FALSE;
FZero = (temp_var == 0x00);
break;
case 31:
newFCarry = ((registerA & 0x01) == 0x01);
registerA = t((FCarry),0x80,0) + (registerA >> 1);
FCarry = newFCarry;
FHalfCarry = FSubtract = FALSE;
FZero = (registerA == 0x00);
break;
case 32:
FCarry = ((registerB & 0x80) == 0x80);
registerB = (registerB << 1) & 0xFF;
FHalfCarry = FSubtract = FALSE;
FZero = (registerB == 0);
break;
case 33:
FCarry = ((registerC & 0x80) == 0x80);
registerC = (registerC << 1) & 0xFF;
FHalfCarry = FSubtract = FALSE;
FZero = (registerC == 0);
break;
case 34:
FCarry = ((registerD & 0x80) == 0x80);
registerD = (registerD << 1) & 0xFF;
FHalfCarry = FSubtract = FALSE;
FZero = (registerD == 0);
break;
case 35:
FCarry = ((registerE & 0x80) == 0x80);
registerE = (registerE << 1) & 0xFF;
FHalfCarry = FSubtract = FALSE;
FZero = (registerE == 0);
break;
case 36:
FCarry = ((registersHL & 0x8000) == 0x8000);
registersHL = ((registersHL << 1) & 0xFE00) + (registersHL & 0xFF);
FHalfCarry = FSubtract = FALSE;
FZero = (registersHL <= 0xFF);
break;
case 37:
FCarry = ((registersHL & 0x0080) == 0x0080);
registersHL = (registersHL & 0xFF00) + ((registersHL << 1) & 0xFF);
FHalfCarry = FSubtract = FALSE;
FZero = ((registersHL & 0xFF) == 0x00);
break;
case 38:
temp_var = memoryRead(registersHL);
FCarry = ((temp_var & 0x80) == 0x80);
temp_var = (temp_var << 1) & 0xFF;
memoryWrite(registersHL, temp_var);
FHalfCarry = FSubtract = FALSE;
FZero = (temp_var == 0x00);
break;
case 39:
FCarry = ((registerA & 0x80) == 0x80);
registerA = (registerA << 1) & 0xFF;
FHalfCarry = FSubtract = FALSE;
FZero = (registerA == 0x00);
break;
case 40:
FCarry = ((registerB & 0x01) == 0x01);
registerB = (registerB & 0x80) + (registerB >> 1);
FHalfCarry = FSubtract = FALSE;
FZero = (registerB == 0);
break;
case 41:
FCarry = ((registerC & 0x01) == 0x01);
registerC = (registerC & 0x80) + (registerC >> 1);
FHalfCarry = FSubtract = FALSE;
FZero = (registerC == 0);
break;
case 42:
FCarry = ((registerD & 0x01) == 0x01);
registerD = (registerD & 0x80) + (registerD >> 1);
FHalfCarry = FSubtract = FALSE;
FZero = (registerD == 0);
break;
case 43:
FCarry = ((registerE & 0x01) == 0x01);
registerE = (registerE & 0x80) + (registerE >> 1);
FHalfCarry = FSubtract = FALSE;
FZero = (registerE == 0);
break;
case 44:
FCarry = ((registersHL & 0x0100) == 0x0100);
registersHL = ((registersHL >> 1) & 0xFF00) + (registersHL & 0x80FF);
FHalfCarry = FSubtract = FALSE;
FZero = (registersHL <= 0xFF);
break;
case 45:
FCarry = ((registersHL & 0x0001) == 0x0001);
registersHL = (registersHL & 0xFF80) + ((registersHL & 0xFF) >> 1);
FHalfCarry = FSubtract = FALSE;
FZero = ((registersHL & 0xFF) == 0x00);
break;
case 46:
temp_var = memoryRead(registersHL);
FCarry = ((temp_var & 0x01) == 0x01);
temp_var = (temp_var & 0x80) + (temp_var >> 1);
memoryWrite(registersHL, temp_var);
FHalfCarry = FSubtract = FALSE;
FZero = (temp_var == 0x00);
break;
case 47:
FCarry = ((registerA & 0x01) == 0x01);
registerA = (registerA & 0x80) + (registerA >> 1);
FHalfCarry = FSubtract = FALSE;
FZero = (registerA == 0x00);
break;
case 48:
registerB = ((registerB & 0xF) << 4) + (registerB >> 4);
FZero = (registerB == 0);
FCarry = FHalfCarry = FSubtract = FALSE;
break;
case 49:
registerC = ((registerC & 0xF) << 4) + (registerC >> 4);
FZero = (registerC == 0);
FCarry = FHalfCarry = FSubtract = FALSE;
break;
case 50:
registerD = ((registerD & 0xF) << 4) + (registerD >> 4);
FZero = (registerD == 0);
FCarry = FHalfCarry = FSubtract = FALSE;
break;
case 51:
registerE = ((registerE & 0xF) << 4) + (registerE >> 4);
FZero = (registerE == 0);
FCarry = FHalfCarry = FSubtract = FALSE;
break;
case 52:
registersHL = ((registersHL & 0xF00) << 4) + ((registersHL & 0xF000) >> 4) + (registersHL & 0xFF);
FZero = (registersHL <= 0xFF);
FCarry = FHalfCarry = FSubtract = FALSE;
break;
case 53:
registersHL = (registersHL & 0xFF00) + ((registersHL & 0xF) << 4) + ((registersHL & 0xF0) >> 4);
FZero = ((registersHL & 0xFF) == 0);
FCarry = FHalfCarry = FSubtract = FALSE;
break;
case 54:
temp_var = memoryRead(registersHL);
temp_var = ((temp_var & 0xF) << 4) + (temp_var >> 4);
memoryWrite(registersHL, temp_var);
FZero = (temp_var == 0);
FCarry = FHalfCarry = FSubtract = FALSE;
break;
case 55:
registerA = ((registerA & 0xF) << 4) + (registerA >> 4);
FZero = (registerA == 0);
FCarry = FHalfCarry = FSubtract = FALSE;
break;
case 56:
FCarry = ((registerB & 0x01) == 0x01);
registerB >>= 1;
FHalfCarry = FSubtract = FALSE;
FZero = (registerB == 0);
break;
case 57:
FCarry = ((registerC & 0x01) == 0x01);
registerC >>= 1;
FHalfCarry = FSubtract = FALSE;
FZero = (registerC == 0);
break;
case 58:
FCarry = ((registerD & 0x01) == 0x01);
registerD >>= 1;
FHalfCarry = FSubtract = FALSE;
FZero = (registerD == 0);
break;
case 59:
FCarry = ((registerE & 0x01) == 0x01);
registerE >>= 1;
FHalfCarry = FSubtract = FALSE;
FZero = (registerE == 0);
break;
case 60:
FCarry = ((registersHL & 0x0100) == 0x0100);
registersHL = ((registersHL >> 1) & 0xFF00) + (registersHL & 0xFF);
FHalfCarry = FSubtract = FALSE;
FZero = (registersHL <= 0xFF);
break;
case 61:
FCarry = ((registersHL & 0x0001) == 0x0001);
registersHL = (registersHL & 0xFF00) + ((registersHL & 0xFF) >> 1);
FHalfCarry = FSubtract = FALSE;
FZero = ((registersHL & 0xFF) == 0x00);
break;
case 62:
temp_var = memoryRead(registersHL);
FCarry = ((temp_var & 0x01) == 0x01);
memoryWrite(registersHL, temp_var >>= 1);
FHalfCarry = FSubtract = FALSE;
FZero = (temp_var == 0x00);
break;
case 63:
FCarry = ((registerA & 0x01) == 0x01);
registerA >>= 1;
FHalfCarry = FSubtract = FALSE;
FZero = (registerA == 0x00);
break;
case 64:
FHalfCarry = TRUE;
FSubtract = FALSE;
FZero = ((registerB & 0x01) == 0);
break;
case 65:
FHalfCarry = TRUE;
FSubtract = FALSE;
FZero = ((registerC & 0x01) == 0);
break;
case 66:
FHalfCarry = TRUE;
FSubtract = FALSE;
FZero = ((registerD & 0x01) == 0);
break;
case 67:
FHalfCarry = TRUE;
FSubtract = FALSE;
FZero = ((registerE & 0x01) == 0);
break;
case 68:
FHalfCarry = TRUE;
FSubtract = FALSE;
FZero = ((registersHL & 0x0100) == 0);
break;
case 69:
FHalfCarry = TRUE;
FSubtract = FALSE;
FZero = ((registersHL & 0x0001) == 0);
break;
case 70:
FHalfCarry = TRUE;
FSubtract = FALSE;
FZero = ((memoryRead(registersHL) & 0x01) == 0);
break;
case 71:
FHalfCarry = TRUE;
FSubtract = FALSE;
FZero = ((registerA & 0x01) == 0);
break;
case 72:
FHalfCarry = TRUE;
FSubtract = FALSE;
FZero = ((registerB & 0x02) == 0);
break;
case 73:
FHalfCarry = TRUE;
FSubtract = FALSE;
FZero = ((registerC & 0x02) == 0);
break;
case 74:
FHalfCarry = TRUE;
FSubtract = FALSE;
FZero = ((registerD & 0x02) == 0);
break;
case 75:
FHalfCarry = TRUE;
FSubtract = FALSE;
FZero = ((registerE & 0x02) == 0);
break;
case 76:
FHalfCarry = TRUE;
FSubtract = FALSE;
FZero = ((registersHL & 0x0200) == 0);
break;
case 77:
FHalfCarry = TRUE;
FSubtract = FALSE;
FZero = ((registersHL & 0x0002) == 0);
break;
case 78:
FHalfCarry = TRUE;
FSubtract = FALSE;
FZero = ((memoryRead(registersHL) & 0x02) == 0);
break;
case 79:
FHalfCarry = TRUE;
FSubtract = FALSE;
FZero = ((registerA & 0x02) == 0);
break;
case 80:
FHalfCarry = TRUE;
FSubtract = FALSE;
FZero = ((registerB & 0x04) == 0);
break;
case 81:
FHalfCarry = TRUE;
FSubtract = FALSE;
FZero = ((registerC & 0x04) == 0);
break;
case 82:
FHalfCarry = TRUE;
FSubtract = FALSE;
FZero = ((registerD & 0x04) == 0);
break;
case 83:
FHalfCarry = TRUE;
FSubtract = FALSE;
FZero = ((registerE & 0x04) == 0);
break;
case 84:
FHalfCarry = TRUE;
FSubtract = FALSE;
FZero = ((registersHL & 0x0400) == 0);
break;
case 85:
FHalfCarry = TRUE;
FSubtract = FALSE;
FZero = ((registersHL & 0x0004) == 0);
break;
case 86:
FHalfCarry = TRUE;
FSubtract = FALSE;
FZero = ((memoryRead(registersHL) & 0x04) == 0);
break;
case 87:
FHalfCarry = TRUE;
FSubtract = FALSE;
FZero = ((registerA & 0x04) == 0);
break;
case 88:
FHalfCarry = TRUE;
FSubtract = FALSE;
FZero = ((registerB & 0x08) == 0);
break;
case 89:
FHalfCarry = TRUE;
FSubtract = FALSE;
FZero = ((registerC & 0x08) == 0);
break;
case 90:
FHalfCarry = TRUE;
FSubtract = FALSE;
FZero = ((registerD & 0x08) == 0);
break;
case 91:
FHalfCarry = TRUE;
FSubtract = FALSE;
FZero = ((registerE & 0x08) == 0);
break;
case 92:
FHalfCarry = TRUE;
FSubtract = FALSE;
FZero = ((registersHL & 0x0800) == 0);
break;
case 93:
FHalfCarry = TRUE;
FSubtract = FALSE;
FZero = ((registersHL & 0x0008) == 0);
break;
case 94:
FHalfCarry = TRUE;
FSubtract = FALSE;
FZero = ((memoryRead(registersHL) & 0x08) == 0);
break;
case 95:
FHalfCarry = TRUE;
FSubtract = FALSE;
FZero = ((registerA & 0x08) == 0);
break;
case 96:
FHalfCarry = TRUE;
FSubtract = FALSE;
FZero = ((registerB & 0x10) == 0);
break;
case 97:
FHalfCarry = TRUE;
FSubtract = FALSE;
FZero = ((registerC & 0x10) == 0);
break;
case 98:
FHalfCarry = TRUE;
FSubtract = FALSE;
FZero = ((registerD & 0x10) == 0);
break;
case 99:
FHalfCarry = TRUE;
FSubtract = FALSE;
FZero = ((registerE & 0x10) == 0);
break;
case 100:
FHalfCarry = TRUE;
FSubtract = FALSE;
FZero = ((registersHL & 0x1000) == 0);
break;
case 101:
FHalfCarry = TRUE;
FSubtract = FALSE;
FZero = ((registersHL & 0x0010) == 0);
break;
case 102:
FHalfCarry = TRUE;
FSubtract = FALSE;
FZero = ((memoryRead(registersHL) & 0x10) == 0);
break;
case 103:
FHalfCarry = TRUE;
FSubtract = FALSE;
FZero = ((registerA & 0x10) == 0);
break;
case 104:
FHalfCarry = TRUE;
FSubtract = FALSE;
FZero = ((registerB & 0x20) == 0);
break;
case 105:
FHalfCarry = TRUE;
FSubtract = FALSE;
FZero = ((registerC & 0x20) == 0);
break;
case 106:
FHalfCarry = TRUE;
FSubtract = FALSE;
FZero = ((registerD & 0x20) == 0);
break;
case 107:
FHalfCarry = TRUE;
FSubtract = FALSE;
FZero = ((registerE & 0x20) == 0);
break;
case 108:
FHalfCarry = TRUE;
FSubtract = FALSE;
FZero = ((registersHL & 0x2000) == 0);
break;
case 109:
FHalfCarry = TRUE;
FSubtract = FALSE;
FZero = ((registersHL & 0x0020) == 0);
break;
case 110:
FHalfCarry = TRUE;
FSubtract = FALSE;
FZero = ((memoryRead(registersHL) & 0x20) == 0);
break;
case 111:
FHalfCarry = TRUE;
FSubtract = FALSE;
FZero = ((registerA & 0x20) == 0);
break;
case 112:
FHalfCarry = TRUE;
FSubtract = FALSE;
FZero = ((registerB & 0x40) == 0);
break;
case 113:
FHalfCarry = TRUE;
FSubtract = FALSE;
FZero = ((registerC & 0x40) == 0);
break;
case 114:
FHalfCarry = TRUE;
FSubtract = FALSE;
FZero = ((registerD & 0x40) == 0);
break;
case 115:
FHalfCarry = TRUE;
FSubtract = FALSE;
FZero = ((registerE & 0x40) == 0);
break;
case 116:
FHalfCarry = TRUE;
FSubtract = FALSE;
FZero = ((registersHL & 0x4000) == 0);
break;
case 117:
FHalfCarry = TRUE;
FSubtract = FALSE;
FZero = ((registersHL & 0x0040) == 0);
break;
case 118:
FHalfCarry = TRUE;
FSubtract = FALSE;
FZero = ((memoryRead(registersHL) & 0x40) == 0);
break;
case 119:
FHalfCarry = TRUE;
FSubtract = FALSE;
FZero = ((registerA & 0x40) == 0);
break;
case 120:
FHalfCarry = TRUE;
FSubtract = FALSE;
FZero = ((registerB & 0x80) == 0);
break;
case 121:
FHalfCarry = TRUE;
FSubtract = FALSE;
FZero = ((registerC & 0x80) == 0);
break;
case 122:
FHalfCarry = TRUE;
FSubtract = FALSE;
FZero = ((registerD & 0x80) == 0);
break;
case 123:
FHalfCarry = TRUE;
FSubtract = FALSE;
FZero = ((registerE & 0x80) == 0);
break;
case 124:
FHalfCarry = TRUE;
FSubtract = FALSE;
FZero = ((registersHL & 0x8000) == 0);
break;
case 125:
FHalfCarry = TRUE;
FSubtract = FALSE;
FZero = ((registersHL & 0x0080) == 0);
break;
case 126:
FHalfCarry = TRUE;
FSubtract = FALSE;
FZero = ((memoryRead(registersHL) & 0x80) == 0);
break;
case 127:
FHalfCarry = TRUE;
FSubtract = FALSE;
FZero = ((registerA & 0x80) == 0);
break;
case 128:
registerB &= 0xFE;
break;
case 129:
registerC &= 0xFE;
break;
case 130:
registerD &= 0xFE;
break;
case 131:
registerE &= 0xFE;
break;
case 132:
registersHL &= 0xFEFF;
break;
case 133:
registersHL &= 0xFFFE;
break;
case 134:
memoryWrite(registersHL, memoryRead(registersHL) & 0xFE);
break;
case 135:
registerA &= 0xFE;
break;
case 136:
registerB &= 0xFD;
break;
case 137:
registerC &= 0xFD;
break;
case 138:
registerD &= 0xFD;
break;
case 139:
registerE &= 0xFD;
break;
case 140:
registersHL &= 0xFDFF;
break;
case 141:
registersHL &= 0xFFFD;
break;
case 142:
memoryWrite(registersHL, memoryRead(registersHL) & 0xFD);
break;
case 143:
registerA &= 0xFD;
break;
case 144:
registerB &= 0xFB;
break;
case 145:
registerC &= 0xFB;
break;
case 146:
registerD &= 0xFB;
break;
case 147:
registerE &= 0xFB;
break;
case 148:
registersHL &= 0xFBFF;
break;
case 149:
registersHL &= 0xFFFB;
break;
case 150:
memoryWrite(registersHL, memoryRead(registersHL) & 0xFB);
break;
case 151:
registerA &= 0xFB;
break;
case 152:
registerB &= 0xF7;
break;
case 153:
registerC &= 0xF7;
break;
case 154:
registerD &= 0xF7;
break;
case 155:
registerE &= 0xF7;
break;
case 156:
registersHL &= 0xF7FF;
break;
case 157:
registersHL &= 0xFFF7;
break;
case 158:
memoryWrite(registersHL, memoryRead(registersHL) & 0xF7);
break;
case 159:
registerA &= 0xF7;
break;
case 160:
registerB &= 0xEF;
break;
case 161:
registerC &= 0xEF;
break;
case 162:
registerD &= 0xEF;
break;
case 163:
registerE &= 0xEF;
break;