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setup board

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This commit is contained in:
alpine9000
2016-04-16 14:35:24 +10:00
parent 1a511c6f26
commit d98337bd11
6 changed files with 159 additions and 64 deletions
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028.game2/init.s
+6 -6
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@@ -6,17 +6,17 @@
Init:
movem.l d0-a6,-(sp)
;; move #$7ff,DMACON(a6) ; disable all dma
;; move #$7fff,INTENA(a6) ; disable all interrupts
;; move #$7fff,INTENA(a6) ; disable all interrupts
;; lea Level3InterruptHandler,a3
;; move.l a3,LVL3_INT_VECTOR
;; lea Level3InterruptHandler,a3
;; move.l a3,LVL3_INT_VECTOR
;; set up playfield
move.w #(RASTER_Y_START<<8)|RASTER_X_START,DIWSTRT(a6)
move.w #((RASTER_Y_STOP-256)<<8)|(RASTER_X_STOP-256),DIWSTOP(a6)
;; move.w #(RASTER_X_START/2-SCREEN_RES)-8,DDFSTRT(a6) ; -8 for extra scrolling word
;; move.w #(RASTER_X_START/2-SCREEN_RES)+(8*((SCREEN_WIDTH/16)-1)),DDFSTOP(a6)
;; move.w #(RASTER_X_START/2-SCREEN_RES)-8,DDFSTRT(a6) ; -8 for extra scrolling word
;; move.w #(RASTER_X_START/2-SCREEN_RES)+(8*((SCREEN_WIDTH/16)-1)),DDFSTOP(a6)
;; enabled 2x the bitplanes as 2x playfields
;; move.w #(SCREEN_BIT_DEPTH*2<<12)|COLOR_ON|DBLPF,BPLCON0(a6)
@@ -29,6 +29,6 @@ Init:
move.w COPJMP1(a6),d0
move.w #(DMAF_BLITTER|DMAF_SETCLR!DMAF_COPPER!DMAF_RASTER!DMAF_MASTER),DMACON(a6)
;; move.w #PF2PRI,BPLCON2(a6)
;; move.w #(INTF_SETCLR|INTF_VERTB|INTF_INTEN),INTENA(a6)
;; move.w #(INTF_SETCLR|INTF_VERTB|INTF_INTEN),INTENA(a6)
movem.l (sp)+,d0-a6
rts