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cc65/libsrc/runtime/makebool.s
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ArmAsm

;
; Ullrich von Bassewitz, 05.10.1998
;
; CC65 runtime: Make boolean according to flags
;
.export boolne, booleq, boollt, boolle, boolgt, boolge
.export boolult, boolule, boolugt, booluge
boolne: bne ret1
ldx #$00
txa
rts
booleq: beq ret1
ldx #$00
txa
rts
boolle: beq ret1
boollt: bmi ret1
ldx #$00
txa
rts
boolgt: beq L0
boolge: bpl ret1
L0: ldx #$00
txa
rts
boolule:
beq ret1
boolult:
bcc ret1
ldx #$00
txa
rts
boolugt:
beq L1
booluge:
bcs ret1
L1: ldx #$00
txa
rts
ret1: ldx #$00
lda #$01
rts