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50 lines
1.4 KiB
50 lines
1.4 KiB
;
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;==================================================================================================
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; HELPER MACROS FOR TARGETING EZ80 CPU INSTRUCTIONS
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;==================================================================================================
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;
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; EMIT PREFIX REQUIRED BY EZ80 TO ENSURE CORRECT 16 BIT IO OPERATION
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;
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#IF (CPUFAM == CPU_EZ80)
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#DEFINE EZ80_IO .DB $49, $CF ; RST.L $08
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#DEFINE EZ80_FN .DB $49, $D7 ; RST.L $10
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#DEFINE EZ80_BNKSEL .DB $49, $DF ; RST.L $18
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#DEFINE RET.L .DB $49 \ RET
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#DEFINE IN0_A(p) .DB $ED,$38,p
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#DEFINE IN0_B(p) .DB $ED,$00,p
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#DEFINE IN0_C(p) .DB $ED,$08,p
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#DEFINE IN0_D(p) .DB $ED,$10,p
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#DEFINE IN0_E(p) .DB $ED,$18,p
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#DEFINE IN0_H(p) .DB $ED,$20,p
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#DEFINE IN0_L(p) .DB $ED,$28,p
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#DEFINE OUT0_A(p) .DB $ED,$39,p
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#DEFINE OUT0_B(p) .DB $ED,$01,p
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#DEFINE OUT0_C(p) .DB $ED,$09,p
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#DEFINE OUT0_D(p) .DB $ED,$11,p
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#DEFINE OUT0_E(p) .DB $ED,$19,p
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#DEFINE OUT0_H(p) .DB $ED,$21,p
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#DEFINE OUT0_L(p) .DB $ED,$29,p
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#DEFINE LDHLMM.LIL(Mmn) \
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#defcont \ .DB $5B
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#defcont \ LD HL, Mmn
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#defcont \ .DB (Mmn >> 16) & $FF
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#DEFINE LDBCMM.LIL(Mmn) \
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#defcont \ .DB $5B
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#defcont \ LD BC, Mmn
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#defcont \ .DB (Mmn >> 16) & $FF
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#DEFINE SBCHLBC.LIL \
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#defcont \ .DB $49
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#defcont \ SBC HL, BC
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IO_SEGMENT .EQU $FF ; THE UPPER 8-BIT ADDRESS FOR I/O
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#ELSE
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#DEFINE EZ80_IO
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#ENDIF
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