mirror of
https://github.com/TomHarte/CLK.git
synced 2024-12-02 02:49:28 +00:00
219 lines
4.6 KiB
NASM
219 lines
4.6 KiB
NASM
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!cpu 65816
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; 2017-12-13 J.E. Klasek j+816 AT klasek DOT at
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videoram = $0400
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colorram = $d800
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;-------------------------------------------------------------------------------
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*=$07ff
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!word $0801
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!word bend
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!word 10
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!byte $9e
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!text "2061", 0
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bend: !word 0
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;-------------------------------------------------------------------------------
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sei
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lda #$17
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sta $d018
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lda #$35
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sta $01
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lda #$7f
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sta $dc0d
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sta $dd0d
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lda $dc0d
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lda $dd0d
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ldx #0
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-
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lda #$20
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sta videoram,x
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sta videoram+$0100,x
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sta videoram+$0200,x
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sta videoram+$0300,x
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lda #1
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sta colorram,x
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sta colorram+$0100,x
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sta colorram+$0200,x
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sta colorram+$0300,x
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inx
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bne -
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jmp start
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theend:
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sep #$30 ; 8-bit for X/Y and A/M
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!as
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!rs
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lda $040210
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cmp #$ff
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bne error
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lda #5
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sta $d020
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ldx #0 ; success
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stx $d7ff
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jmp *
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error
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sta $0400
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lda $040211 ; failure map (which test failed)
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sta $0401
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lda #10
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sta $d020
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ldx #$ff ; failure
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stx $d7ff
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jmp *
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;-------------------------------------------------------------------------------
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* = $1000
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start:
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; EXPECTED FINAL RESULTS: $0210 = FF
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; (any other number will be the
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; test that failed)
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; initialize:
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lda #$00
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sta $040210
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sta $040211
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test00:
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; setup cpu
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clc
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xce ; native mode
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rep #$30 ; 16-bit for X/Y and A/M
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!al
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!rl
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; setup registers
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lda #$0404 ; Data Bank Register register
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pha ; akku in 16 bit
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plb ; pull DBR twice
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plb
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ldy #$8888 ; change marker
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tyx
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tya
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; setup memory
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lda #$5555 ; wrap marker
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sta $048887 ; into bank 4, for LDX/LDY
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lda #$7777 ; no-wrap marker
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sta $058887 ; into bank 5, for LDX/LDY
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;---------------------------------------------------------------------
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stz $0000 ; init wrap marker
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lda #$7777 ; no-wrap marker
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sta $050000 ; to start of bank 5
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sty $ffff ; high byte of Y is where?
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lda $0000
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bne +
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lda $ffff ; fetch, does not wrap
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cmp #$8888
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bne +
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lda $050000
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cmp #$7788 ; write to bank 5
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beq ++
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+ inc $0210 ; fail counter
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clc
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++
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rol $0211 ; update failure map
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;---------------------------------------------------------------------
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stz $0000 ; init wrap marker
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lda #$7777 ; no-wrap marker
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sta $050000 ; to start of bank 5
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tyx ; change marker
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stx $ffff ; high byte of Y is where?
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lda $0000
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bne +
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lda $ffff ; fetch, does not wrap
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cmp #$8888
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bne +
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lda $050000
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cmp #$7788 ; write to bank 5
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beq ++
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+ inc $0210 ; fail counter
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clc
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++
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rol $0211 ; update failure map
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;---------------------------------------------------------------------
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ldy $ffff,x ; Y=5555 Y=7777 value for Y comes from which bank?
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cpy #$7777
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beq +
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inc $0210 ; fail counter
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clc
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+
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rol $0211 ; update failure map
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;---------------------------------------------------------------------
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txy ; reinitialize y
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ldx $ffff,y ; X=5555 X=7777 value for X comes from which bank?
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cpx #$7777
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beq +
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inc $0210 ; fail counter
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clc
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+
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rol $0211 ; update failure map
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;---------------------------------------------------------------------
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stz $0000 ; init wrap marker
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lda #$7777 ; no-wrap marker
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sta $050000 ; to start of bank 5
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lda #$7788
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inc $0000 ; $0000 = 1
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trb $ffff ; 88 77 & ^(88 77) -> 00 00
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lda $0000
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cmp #$0001 ; $0000 not reset by trb (does not wrap)
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bne +
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lda $050000
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cmp #$7700 ; $050001 reset by trb
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beq ++
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+ inc $0210 ; fail counter
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clc
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++
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rol $0211 ; update failure map
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;---------------------------------------------------------------------
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lda #$7788
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sta $050000 ; 00 88 | 88 77 -> 88 ff
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tsb $ffff ; set bits (which are already cleared)
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lda $0000
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cmp #$0001 ; $0000 not set by tsb (does not wrap!)
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bne +
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lda $050000
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cmp #$77ff ; $050001 all bits set by tsb
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beq ++
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+ inc $0210 ; fail counter
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clc
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++
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rol $0211 ; update failure map
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;---------------------------------------------------------------------
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test00pass:
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lda $0210
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eor #%0011111100000000 ; invert failure map
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sta $0210
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bne +
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dec $0210 ; 0 -> FF
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+
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lda #$0000
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pha
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plb
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plb ; program bank = 0
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sec
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xce ; emulation mode
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sep #$30 ; a/m, x/y 8 bit
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jmp theend
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