Mercurial > repos > blastem
diff z80inst.c @ 292:b970ea214ecb
Added z80 test generator and z80 test runner.
author | Mike Pavone <pavone@retrodev.com> |
---|---|
date | Wed, 08 May 2013 14:40:48 -0700 |
parents | 9578e5dea147 |
children | 147e31983730 |
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--- a/z80inst.c Mon May 06 00:57:56 2013 -0700 +++ b/z80inst.c Wed May 08 14:40:48 2013 -0700 @@ -1459,3 +1459,76 @@ return len; } +uint8_t z80_high_reg(uint8_t reg) +{ + switch(reg) + { + case Z80_C: + case Z80_BC: + return Z80_B; + case Z80_E: + case Z80_DE: + return Z80_D; + case Z80_L: + case Z80_HL: + return Z80_H; + case Z80_IXL: + case Z80_IX: + return Z80_IXH; + case Z80_IYL: + case Z80_IY: + return Z80_IYH; + default: + return Z80_UNUSED; + } +} + +uint8_t z80_low_reg(uint8_t reg) +{ + switch(reg) + { + case Z80_B: + case Z80_BC: + return Z80_C; + case Z80_D: + case Z80_DE: + return Z80_E; + case Z80_H: + case Z80_HL: + return Z80_L; + case Z80_IXH: + case Z80_IX: + return Z80_IXL; + case Z80_IYH: + case Z80_IY: + return Z80_IYL; + default: + return Z80_UNUSED; + } +} + +uint8_t z80_word_reg(uint8_t reg) +{ + switch(reg) + { + case Z80_B: + case Z80_C: + return Z80_BC; + case Z80_D: + case Z80_E: + return Z80_DE; + case Z80_H: + case Z80_L: + return Z80_HL; + case Z80_IXH: + case Z80_IXL: + return Z80_IX; + case Z80_IYH: + case Z80_IYL: + return Z80_IY; + default: + return Z80_UNUSED; + } +} + +