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memset4_listing.asm
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ca65 V2.18 - Ubuntu 2.18-1
Main file : memset4.asm
Current file: memset4.asm
000000r 1 ;
000000r 1 ; File generated by cc65 v 2.18 - Ubuntu 2.18-1
000000r 1 ;
000000r 1 .fopt compiler,"cc65 v 2.18 - Ubuntu 2.18-1"
000000r 1 .setcpu "6502"
000000r 1 .smart on
000000r 1 .autoimport on
000000r 1 .case on
000000r 1 .debuginfo off
000000r 1 .importzp sp, sreg, regsave, regbank
000000r 1 .importzp tmp1, tmp2, tmp3, tmp4, ptr1, ptr2, ptr3, ptr4
000000r 1 .macpack longbranch
000000r 2 .macro jeq Target
000000r 2 .if .match(Target, 0)
000000r 2 bne *+5
000000r 2 jmp Target
000000r 2 .elseif .def(Target) .and .const((*-2)-(Target)) .and ((*+2)-(Target) <= 127)
000000r 2 beq Target
000000r 2 .else
000000r 2 bne *+5
000000r 2 jmp Target
000000r 2 .endif
000000r 2 .endmacro
000000r 2 .macro jne Target
000000r 2 .if .match(Target, 0)
000000r 2 beq *+5
000000r 2 jmp Target
000000r 2 .elseif .def(Target) .and .const((*-2)-(Target)) .and ((*+2)-(Target) <= 127)
000000r 2 bne Target
000000r 2 .else
000000r 2 beq *+5
000000r 2 jmp Target
000000r 2 .endif
000000r 2 .endmacro
000000r 2 .macro jmi Target
000000r 2 .if .match(Target, 0)
000000r 2 bpl *+5
000000r 2 jmp Target
000000r 2 .elseif .def(Target) .and .const((*-2)-(Target)) .and ((*+2)-(Target) <= 127)
000000r 2 bmi Target
000000r 2 .else
000000r 2 bpl *+5
000000r 2 jmp Target
000000r 2 .endif
000000r 2 .endmacro
000000r 2 .macro jpl Target
000000r 2 .if .match(Target, 0)
000000r 2 bmi *+5
000000r 2 jmp Target
000000r 2 .elseif .def(Target) .and .const((*-2)-(Target)) .and ((*+2)-(Target) <= 127)
000000r 2 bpl Target
000000r 2 .else
000000r 2 bmi *+5
000000r 2 jmp Target
000000r 2 .endif
000000r 2 .endmacro
000000r 2 .macro jcs Target
000000r 2 .if .match(Target, 0)
000000r 2 bcc *+5
000000r 2 jmp Target
000000r 2 .elseif .def(Target) .and .const((*-2)-(Target)) .and ((*+2)-(Target) <= 127)
000000r 2 bcs Target
000000r 2 .else
000000r 2 bcc *+5
000000r 2 jmp Target
000000r 2 .endif
000000r 2 .endmacro
000000r 2 .macro jcc Target
000000r 2 .if .match(Target, 0)
000000r 2 bcs *+5
000000r 2 jmp Target
000000r 2 .elseif .def(Target) .and .const((*-2)-(Target)) .and ((*+2)-(Target) <= 127)
000000r 2 bcc Target
000000r 2 .else
000000r 2 bcs *+5
000000r 2 jmp Target
000000r 2 .endif
000000r 2 .endmacro
000000r 2 .macro jvs Target
000000r 2 .if .match(Target, 0)
000000r 2 bvc *+5
000000r 2 jmp Target
000000r 2 .elseif .def(Target) .and .const((*-2)-(Target)) .and ((*+2)-(Target) <= 127)
000000r 2 bvs Target
000000r 2 .else
000000r 2 bvc *+5
000000r 2 jmp Target
000000r 2 .endif
000000r 2 .endmacro
000000r 2 .macro jvc Target
000000r 2 .if .match(Target, 0)
000000r 2 bvs *+5
000000r 2 jmp Target
000000r 2 .elseif .def(Target) .and .const((*-2)-(Target)) .and ((*+2)-(Target) <= 127)
000000r 2 bvc Target
000000r 2 .else
000000r 2 bvs *+5
000000r 2 jmp Target
000000r 2 .endif
000000r 2 .endmacro
000000r 2
000000r 1 .forceimport __STARTUP__
000000r 1 .export _memset8
000000r 1 .export _main
000000r 1
000000r 1 ; ---------------------------------------------------------------
000000r 1 ; void __near__ memset8 (__near__ unsigned char *, const unsigned char, unsigned char)
000000r 1 ; ---------------------------------------------------------------
000000r 1
000000r 1 .segment "CODE"
000000r 1
000000r 1 .proc _memset8: near
000000r 1
000000r 1 .segment "CODE"
000000r 1
000000r 1 ;
000000r 1 ; {
000000r 1 ;
000000r 1 20 rr rr jsr pusha
000003r 1 ;
000003r 1 ; while (n > 0) {
000003r 1 ;
000003r 1 4C rr rr jmp L0004
000006r 1 ;
000006r 1 ; *dest++ = c;
000006r 1 ;
000006r 1 A0 03 L0002: ldy #$03
000008r 1 20 rr rr jsr ldaxysp
00000Br 1 85 rr sta regsave
00000Dr 1 86 rr stx regsave+1
00000Fr 1 20 rr rr jsr incax1
000012r 1 A0 02 ldy #$02
000014r 1 20 rr rr jsr staxysp
000017r 1 A0 01 ldy #$01
000019r 1 B1 rr lda (sp),y
00001Br 1 88 dey
00001Cr 1 91 rr sta (regsave),y
00001Er 1 ;
00001Er 1 ; n--;
00001Er 1 ;
00001Er 1 B1 rr lda (sp),y
000020r 1 38 sec
000021r 1 E9 01 sbc #$01
000023r 1 91 rr sta (sp),y
000025r 1 ;
000025r 1 ; while (n > 0) {
000025r 1 ;
000025r 1 A0 00 L0004: ldy #$00
000027r 1 B1 rr lda (sp),y
000029r 1 D0 DB bne L0002
00002Br 1 ;
00002Br 1 ; }
00002Br 1 ;
00002Br 1 4C rr rr jmp incsp4
00002Er 1
00002Er 1 .endproc
00002Er 1
00002Er 1 ; ---------------------------------------------------------------
00002Er 1 ; int __near__ main (void)
00002Er 1 ; ---------------------------------------------------------------
00002Er 1
00002Er 1 .segment "CODE"
00002Er 1
00002Er 1 .proc _main: near
00002Er 1
00002Er 1 .segment "BSS"
000000r 1
000000r 1 L000A:
000000r 1 00 00 .res 2,$00
000002r 1 L000C:
000002r 1 00 .res 1,$00
000003r 1 L000E:
000003r 1 00 .res 1,$00
000004r 1
000004r 1 .segment "CODE"
00002Er 1
00002Er 1 ;
00002Er 1 ; uint8_t *dest = (uint8_t *) 0x0600;
00002Er 1 ;
00002Er 1 A2 06 ldx #$06
000030r 1 A9 00 lda #$00
000032r 1 8D rr rr sta L000A
000035r 1 8E rr rr stx L000A+1
000038r 1 ;
000038r 1 ; uint8_t bytes = 0xff;
000038r 1 ;
000038r 1 A9 FF lda #$FF
00003Ar 1 8D rr rr sta L000C
00003Dr 1 ;
00003Dr 1 ; uint8_t fill = 0x00;
00003Dr 1 ;
00003Dr 1 A9 00 lda #$00
00003Fr 1 8D rr rr sta L000E
000042r 1 ;
000042r 1 ; memset8(dest, fill, bytes);
000042r 1 ;
000042r 1 AD rr rr lda L000A
000045r 1 AE rr rr ldx L000A+1
000048r 1 20 rr rr jsr pushax
00004Br 1 AD rr rr lda L000E
00004Er 1 20 rr rr jsr pusha
000051r 1 AD rr rr lda L000C
000054r 1 20 rr rr jsr _memset8
000057r 1 ;
000057r 1 ; return 0;
000057r 1 ;
000057r 1 A2 00 ldx #$00
000059r 1 8A txa
00005Ar 1 ;
00005Ar 1 ; }
00005Ar 1 ;
00005Ar 1 60 rts
00005Br 1
00005Br 1 .endproc
00005Br 1
00005Br 1