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; RAZE - register definitions 
 
;----------------------------------------------------------------------------; 
; Flags 
%define FLAG_C   01h         ; carry 
%define FLAG_N   02h         ; negative 
%define FLAG_P   04h         ; parity/overflow 
%define FLAG_3   08h         ; bit 3 
%define FLAG_H   10h         ; half-carry 
%define FLAG_5   20h         ; bit 5 
%define FLAG_Z   40h         ; zero 
%define FLAG_S   80h         ; sign 
 
; set the register mappings. 
; we avoid bugs this way and make it simpler. 
 
; 16-bit registers 
%define zAF ax 
%define zHL bx 
%define zBC cx 
%define zDE word [_z80_DE] 
%define zPC si 
%define zSP word [_z80_SP] 
%define zIX word [_z80_IX] 
%define zIY word [_z80_IY] 
 
; 16-bit registers, zero-extended to 32-bit 
; for when a dword transfer is better 
%define ezAF eax 
%define ezHL ebx 
%define ezBC ecx 
%define ezDE dword [_z80_DE] 
%define ezPC esi 
%define ezSP dword [_z80_SP] 
%define ezIX dword [_z80_IX] 
%define ezIY dword [_z80_IY] 
 
; 8-bit registers 
%define zF ah 
%define zA al 
%define zB ch 
%define zC cl 
%define zD byte [_z80_DE+1] 
%define zE byte [_z80_DE] 
%define zH bh 
%define zL bl 
%define zIXh byte [_z80_IX+1] 
%define zIXl byte [_z80_IX] 
%define zIYh byte [_z80_IY+1] 
%define zIYl byte [_z80_IY] 
 
; 8-bit registers, (accessible by 16-bit registers with l or h) 
%define hzAF zA 
%define lzAF zF 
%define hzBC zB 
%define lzBC zC 
%define hzDE zD 
%define lzDE zE 
%define hzHL zH 
%define lzHL zL 
%define hzIX zIXh 
%define lzIX zIXl 
%define hzIY zIYh 
%define lzIY zIYl 
%define hzSP byte [_z80_SP+1] 
%define lzSP byte [_z80_SP] 
 
; 16-bit registers (prime) 
%define zAF2 word [_z80_AF2] 
%define zHL2 word [_z80_HL2] 
%define zBC2 word [_z80_BC2] 
%define zDE2 word [_z80_DE2] 
 
; 16-bit registers (prime), zero-extended to 32-bit 
; for when a dword transfer is better 
%define ezAF2 dword [_z80_AF2] 
%define ezHL2 dword [_z80_HL2] 
%define ezBC2 dword [_z80_BC2] 
%define ezDE2 dword [_z80_DE2] 
 
; Misc 
%define zI byte [_z80_I] 
%define zR ebp 
 
; get/set reg values 
%define Z80_REG_AF         0 
%define Z80_REG_BC         1 
%define Z80_REG_DE         2 
%define Z80_REG_HL         3 
%define Z80_REG_IX         4 
%define Z80_REG_IY         5 
%define Z80_REG_PC         6 
%define Z80_REG_SP         7 
%define Z80_REG_AF2        8 
%define Z80_REG_BC2        9 
%define Z80_REG_DE2       10 
%define Z80_REG_HL2       11 
%define Z80_REG_IFF1      12 
%define Z80_REG_IFF2      13 
%define Z80_REG_IR        14 
%define Z80_REG_IM        15 
%define Z80_REG_IRQVector 16 
%define Z80_REG_IRQLine   17 
%define Z80_REG_Halted    18