mirror of
https://github.com/deater/dos33fsprogs.git
synced 2024-12-29 00:31:52 +00:00
160 lines
1.5 KiB
ArmAsm
160 lines
1.5 KiB
ArmAsm
; Loads to 806
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HLINE = $F819 ;; HLINE Y,$2C at A
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SETGR = $F390
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; $20 to $60
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; AND (all)
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; BIT
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; BMI, BVC
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; EOR (all)
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; SEC
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; CLI
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; JMP
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; JSR
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; LSR
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; ROL
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; RTI
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; PHA
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; PLP
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; DEY $88 = 1000 1000-> $44 ROL
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plain:
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nop
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nop
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nop
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nop
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nop
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nop
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sec
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rol ;0x01
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sec
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rol ;0x03
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sec
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rol ;0x07
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sec
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rol ;0x0f
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sec
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rol ;0x1f
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sec
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rol ;0x3f
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flip_it:
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jsr SETGR
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lda #$99
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sta $30
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lda #39
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sta $2c
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ldy #0
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lda #15
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jsr HLINE
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end:
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jmp end
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.if 0
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; x012345 ; xx6789ab ; xxcdef01 ; xx234567
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; x=0, y=0
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lda eeep+3 ; 3
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asl ; 1
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asl ; 1
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ror eeep+2 ; 3
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ror ; 1
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ror eeep+2 ; 3
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ror ; 1
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sta urgh+2 ; 3
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;=======
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; 18
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; xx012345 ; xx6789ab ; xxxxcdef ; 01234567
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lda eeep+0 ; 3
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asl eeep+1 ; 3
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asl eeep+1 ; 3
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asl eeep+1 ; 3
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rol ; 1
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asl eeep+1 ; 3
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rol ; 1
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sta urgh+0 ; 3
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;======
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; 20
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; 01234567 ; 89ab0000 ; xxxxcdef ; 01234567
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lda eep+2 ; 3
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and #$f ; 2
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ora eep+1 ; 3
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sta urgh+1 ; 3
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;=====
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; 11
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inx
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inx
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inx ; 3
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iny
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iny
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iny
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iny ; 4
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;bne ; 2
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ldy #0
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loop:
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lda eeep,Y
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asl
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asl
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sta urgh,Y
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iny
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; cmp #$
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bne loop
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ldy #0
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loop:
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lda eeep,Y
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sta ZP
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ldx #3
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three_loop:
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lda ZP
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and #$3
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ora urgh,Y
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sta urgh,Y
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lsr ZP
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lsr ZP
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iny
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dex
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bne three_loop
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tya
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bne loop
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01xx xx00
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ldy #0
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loop:
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lda eep,Y ;3
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asl ;1
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asl ;1
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sta urgh,Y ;3
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lda eep+,Y ;3
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lsr ;1
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lsr ;1
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and #$f ;2
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ora urgh,Y ;3
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sta urgh,Y ;3
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iny
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bpl loop
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.endif
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; fory=0to2:fori=0to39:z=y*40+i:color=peek(2054+z):ploti,y*16:color=peek(2154+z):ploti,1+y*16:nextI,Y
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