]> git.sur5r.net Git - cc65/blobdiff - libsrc/lynx/crt0.s
Removed (pretty inconsistently used) tab chars from source code base.
[cc65] / libsrc / lynx / crt0.s
index 804165c0dc2dc280087d3106284162b4d3198285..116b39f76a26b11b229642a91b1d13281ad19062 100644 (file)
 ; on the front of the fully linked binary (see EXEHDR segment.)
 ;
 
-       .export         _exit
-       .export         __STARTUP__ : absolute = 1      ; Mark as startup
+        .export         _exit
+        .export         __STARTUP__ : absolute = 1      ; Mark as startup
 
-       .import         initlib, donelib
-       .import         zerobss
-       .import         callmain
-       .import         _main
-       .import         __RAM_START__, __RAM_SIZE__, __STACKSIZE__
+        .import         initlib, donelib
+        .import         zerobss
+        .import         callmain
+        .import         _main
+        .import         __RAM_START__, __RAM_SIZE__, __STACKSIZE__
 
-       .include        "zeropage.inc"
-       .include        "extzp.inc"
-       .include        "lynx.inc"
+        .include        "zeropage.inc"
+        .include        "extzp.inc"
+        .include        "lynx.inc"
 
 ; ------------------------------------------------------------------------
 ; Mikey and Suzy init data, reg offsets and data
 
-       .rodata
+        .rodata
 
-SuzyInitReg:   .byte $28,$2a,$04,$06,$92,$83,$90
-SuzyInitData:  .byte $7f,$7f,$00,$00,$24,$f3,$01
+SuzyInitReg:    .byte $28,$2a,$04,$06,$92,$83,$90
+SuzyInitData:   .byte $7f,$7f,$00,$00,$24,$f3,$01
 
-MikeyInitReg:  .byte $00,$01,$08,$09,$20,$28,$30,$38,$44,$50,$8a,$8b,$8c,$92,$93
-MikeyInitData: .byte $9e,$18,$68,$1f,$00,$00,$00,$00,$00,$ff,$1a,$1b,$04,$0d,$29
+MikeyInitReg:   .byte $00,$01,$08,$09,$20,$28,$30,$38,$44,$50,$8a,$8b,$8c,$92,$93
+MikeyInitData:  .byte $9e,$18,$68,$1f,$00,$00,$00,$00,$00,$ff,$1a,$1b,$04,$0d,$29
 
 ; ------------------------------------------------------------------------
 ; Actual code
 
-       .segment "STARTUP"
+        .segment "STARTUP"
 
 ; set up system
 
-       sei
-       cld
-       ldx     #$FF
-       txs
+        sei
+        cld
+        ldx     #$FF
+        txs
 
 ; init bank switching
 
-       lda     #$C
-       sta     MAPCTL          ; $FFF9
+        lda     #$C
+        sta     MAPCTL          ; $FFF9
 
 ; disable all timer interrupts
 
-       lda     #$80
-       trb     TIM0CTLA
-       trb     TIM1CTLA
-       trb     TIM2CTLA
-       trb     TIM3CTLA
-       trb     TIM5CTLA
-       trb     TIM6CTLA
-       trb     TIM7CTLA
+        lda     #$80
+        trb     TIM0CTLA
+        trb     TIM1CTLA
+        trb     TIM2CTLA
+        trb     TIM3CTLA
+        trb     TIM5CTLA
+        trb     TIM6CTLA
+        trb     TIM7CTLA
 
 ; disable TX/RX IRQ, set to 8E1
 
-       lda     #%11101
-       sta     SERCTL
+        lda     #%11101
+        sta     SERCTL
 
 ; clear all pending interrupts
 
-       lda     INTSET
-       sta     INTRST
+        lda     INTSET
+        sta     INTRST
 
 ; setup the stack
 
-       lda     #<(__RAM_START__ + __RAM_SIZE__ + __STACKSIZE__)
-       sta     sp
-       lda     #>(__RAM_START__ + __RAM_SIZE__ + __STACKSIZE__)
-       sta     sp+1
+        lda     #<(__RAM_START__ + __RAM_SIZE__ + __STACKSIZE__)
+        sta     sp
+        lda     #>(__RAM_START__ + __RAM_SIZE__ + __STACKSIZE__)
+        sta     sp+1
 
 ; Init Mickey
 
-       ldx     #.sizeof(MikeyInitReg)-1
-mloop: ldy     MikeyInitReg,x
-       lda     MikeyInitData,x
-       sta     $fd00,y
-       dex
-       bpl     mloop
+        ldx     #.sizeof(MikeyInitReg)-1
+mloop:  ldy     MikeyInitReg,x
+        lda     MikeyInitData,x
+        sta     $fd00,y
+        dex
+        bpl     mloop
 
 ; these are RAM-shadows of read only regs
 
-       ldx     #$1b
-       stx     __iodat
-       dex                     ; $1A
-       stx     __iodir
-       ldx     #$d
-       stx     __viddma
+        ldx     #$1b
+        stx     __iodat
+        dex                     ; $1A
+        stx     __iodir
+        ldx     #$d
+        stx     __viddma
 
 ; Init Suzy
 
-       ldx     #.sizeof(SuzyInitReg)-1
-sloop: ldy     SuzyInitReg,x
-       lda     SuzyInitData,x
-       sta     $fc00,y
-       dex
-       bpl     sloop
+        ldx     #.sizeof(SuzyInitReg)-1
+sloop:  ldy     SuzyInitReg,x
+        lda     SuzyInitData,x
+        sta     $fc00,y
+        dex
+        bpl     sloop
 
-       lda     #$24
-       sta     __sprsys
-       cli
+        lda     #$24
+        sta     __sprsys
+        cli
 
 ; Clear the BSS data
 
-       jsr     zerobss
+        jsr     zerobss
 
 ; Call module constructors
 
-       jsr     initlib
+        jsr     initlib
 
 ; Push arguments and call main
 
-       jsr     callmain
+        jsr     callmain
 
 ; Call module destructors. This is also the _exit entry.
 
-_exit: jsr     donelib         ; Run module destructors
+_exit:  jsr     donelib         ; Run module destructors
 
 ; Endless loop
 
-noret: bra     noret
+noret:  bra     noret