• Fichier: generic.mac
  • Path: /invader_nes/InvaderNES/build/cc65/asminc/generic.mac
  • File size: 956 bytes
  • MIME-type: text/plain
  • Charset: utf-8
 
Retour

; add - Add without carry
.macro  add     Arg1, Arg2
        clc
        .if .paramcount = 2
                adc     Arg1, Arg2
        .else
                adc     Arg1
        .endif
.endmacro

; sub - subtract without borrow
.macro  sub     Arg1, Arg2
        sec
        .if .paramcount = 2
                sbc     Arg1, Arg2
        .else
                sbc     Arg1
        .endif
.endmacro

; bge - jump if unsigned greater or equal
.macro  bge     Arg
        bcs     Arg
.endmacro

; blt - Jump if unsigned less
.macro  blt     Arg
        bcc     Arg
.endmacro

; bgt - jump if unsigned greater
.macro  bgt     Arg
        .local  L
        beq     L
        bcs     Arg
L:
.endmacro

; ble - jump if unsigned less or equal
.macro  ble     Arg
        beq     Arg
        bcc     Arg
.endmacro

; bnz - jump if not zero
.macro  bnz     Arg
        bne     Arg
.endmacro

; bze - jump if zero
.macro  bze     Arg
        beq     Arg
.endmacro