mirror of
https://github.com/a2-4am/4sports.git
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216 lines
6.1 KiB
Plaintext
216 lines
6.1 KiB
Plaintext
;license:MIT
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;(c) 2019-2020 by 4am
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;
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!cpu 6502
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!to "build/FX.INDEXED/DHGR.SOFT.DIAG",plain
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*=$6000
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src = $F0
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dst = $F2
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row = $FD
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col = $FE
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counter = $FF
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!macro SET_HGR_HI_WITH_OFFSET .offset {
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!if .offset > 0 {
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adc #(.offset*4)
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}
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sta src+1
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eor #$60
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sta dst+1
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}
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!macro RESET_HGR_HI_WITH_OFFSET .offset {
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txa
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+SET_HGR_HI_WITH_OFFSET .offset
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}
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; note: .copymask is an immediate value, not an indexed array or a memory address
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!macro COPY_WITH_OFFSET_AND_MASK .offset, .copymask {
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+RESET_HGR_HI_WITH_OFFSET .offset
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+COPY_BIT_IMMEDIATE .copymask
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}
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!macro COPY_BYTE .offset {
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+RESET_HGR_HI_WITH_OFFSET .offset
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lda (src), y
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sta (dst), y
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}
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!source "src/fx/macros.a"
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exit=*+3
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+COPY_TO_AUXMEM $60, $07
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lda #(40+24+7) ; columns + rows + blocks per row
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sta counter
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lda #40
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sta col
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ColLoop
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lda $c000
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bmi exit
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dec col
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dec counter
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beq exit
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lda #24
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sta row
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ldy col
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RowLoop
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dec row
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bmi ColLoop
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ldx row
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lda hgrrowlo, x
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sta src
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sta dst
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lda hgrrowhi, x
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tax ; X = high byte of src throughout RowLoop
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+BRANCH_IF_Y_IS_OFFSCREEN @block2
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+SET_HGR_HI_WITH_OFFSET 3
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+COPY_BIT_IMMEDIATE %10000001
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+COPY_WITH_OFFSET_AND_MASK 4, %10000001
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@block2
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iny
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+BRANCH_IF_Y_IS_OFFSCREEN @block3
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+COPY_WITH_OFFSET_AND_MASK 2, %10000110
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+COPY_WITH_OFFSET_AND_MASK 3, %10000001
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+COPY_WITH_OFFSET_AND_MASK 4, %10000001
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+COPY_WITH_OFFSET_AND_MASK 5, %10010110
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@block3
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iny
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+BRANCH_IF_Y_IS_OFFSCREEN @block4
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+COPY_WITH_OFFSET_AND_MASK 2, %10000111
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+COPY_WITH_OFFSET_AND_MASK 3, %10000111
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+COPY_WITH_OFFSET_AND_MASK 4, %10000111
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+COPY_WITH_OFFSET_AND_MASK 5, %10000111
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@block4
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iny
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+BRANCH_IF_Y_IS_OFFSCREEN @block5
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+COPY_WITH_OFFSET_AND_MASK 1, %10011001
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+COPY_WITH_OFFSET_AND_MASK 2, %10000001
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+COPY_WITH_OFFSET_AND_MASK 3, %10011111
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+COPY_WITH_OFFSET_AND_MASK 4, %10000111
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+COPY_WITH_OFFSET_AND_MASK 5, %10000111
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+COPY_WITH_OFFSET_AND_MASK 6, %10011001
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@block5
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iny
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+BRANCH_IF_Y_IS_OFFSCREEN @block6
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+COPY_WITH_OFFSET_AND_MASK 1, %10011111
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+COPY_WITH_OFFSET_AND_MASK 2, %10011111
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+COPY_WITH_OFFSET_AND_MASK 3, %10011111
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+COPY_WITH_OFFSET_AND_MASK 4, %10011111
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+COPY_WITH_OFFSET_AND_MASK 5, %10011111
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+COPY_WITH_OFFSET_AND_MASK 6, %10011111
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@block6
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iny
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+LONG_BRANCH_IF_Y_IS_OFFSCREEN @block7
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+COPY_WITH_OFFSET_AND_MASK 0, %11100110
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+COPY_WITH_OFFSET_AND_MASK 1, %10011111
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+COPY_BYTE 2
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+COPY_WITH_OFFSET_AND_MASK 3, %10011111
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+COPY_BYTE 4
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+COPY_WITH_OFFSET_AND_MASK 5, %10011111
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+COPY_WITH_OFFSET_AND_MASK 6, %10011111
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+COPY_WITH_OFFSET_AND_MASK 7, %11100110
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@block7
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iny
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+BRANCH_IF_Y_IS_OFFSCREEN @switchtoaux
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+COPY_BYTE 0
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+COPY_BYTE 1
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+COPY_BYTE 2
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+COPY_BYTE 3
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+COPY_BYTE 4
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+COPY_BYTE 5
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+COPY_BYTE 6
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+COPY_BYTE 7
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@switchtoaux
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sta $C003
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sta $C005
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+BRANCH_IF_Y_IS_OFFSCREEN @block6_aux
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+COPY_BYTE 0
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+COPY_BYTE 1
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+COPY_BYTE 2
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+COPY_BYTE 3
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+COPY_BYTE 4
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+COPY_BYTE 5
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+COPY_BYTE 6
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+COPY_BYTE 7
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@block6_aux
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dey
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+LONG_BRANCH_IF_Y_IS_OFFSCREEN @block5_aux
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+COPY_WITH_OFFSET_AND_MASK 0, %10110011
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+COPY_WITH_OFFSET_AND_MASK 1, %11111100
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+COPY_BYTE 2
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+COPY_WITH_OFFSET_AND_MASK 3, %11111100
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+COPY_BYTE 4
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+COPY_WITH_OFFSET_AND_MASK 5, %11111100
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+COPY_WITH_OFFSET_AND_MASK 6, %11111100
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+COPY_WITH_OFFSET_AND_MASK 7, %10110011
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@block5_aux
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dey
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+BRANCH_IF_Y_IS_OFFSCREEN @block4_aux
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+COPY_WITH_OFFSET_AND_MASK 1, %11111100
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+COPY_WITH_OFFSET_AND_MASK 2, %11111100
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+COPY_WITH_OFFSET_AND_MASK 3, %11111100
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+COPY_WITH_OFFSET_AND_MASK 4, %11111100
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+COPY_WITH_OFFSET_AND_MASK 5, %11111100
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+COPY_WITH_OFFSET_AND_MASK 6, %11111100
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@block4_aux
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dey
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+BRANCH_IF_Y_IS_OFFSCREEN @block3_aux
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+COPY_WITH_OFFSET_AND_MASK 1, %11001100
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+COPY_WITH_OFFSET_AND_MASK 2, %11110000
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+COPY_WITH_OFFSET_AND_MASK 3, %11111100
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+COPY_WITH_OFFSET_AND_MASK 4, %11110000
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+COPY_WITH_OFFSET_AND_MASK 5, %11110000
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+COPY_WITH_OFFSET_AND_MASK 6, %11001100
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@block3_aux
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dey
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+BRANCH_IF_Y_IS_OFFSCREEN @block2_aux
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+COPY_WITH_OFFSET_AND_MASK 2, %11110000
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+COPY_WITH_OFFSET_AND_MASK 3, %11110000
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+COPY_WITH_OFFSET_AND_MASK 4, %11110000
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+COPY_WITH_OFFSET_AND_MASK 5, %11110000
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@block2_aux
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dey
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+BRANCH_IF_Y_IS_OFFSCREEN @block1_aux
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+COPY_WITH_OFFSET_AND_MASK 2, %10110000
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+COPY_WITH_OFFSET_AND_MASK 3, %11000000
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+COPY_WITH_OFFSET_AND_MASK 4, %11000000
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+COPY_WITH_OFFSET_AND_MASK 5, %10110000
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@block1_aux
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dey
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+BRANCH_IF_Y_IS_OFFSCREEN @switchtomain
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+COPY_WITH_OFFSET_AND_MASK 3, %11000000
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+COPY_WITH_OFFSET_AND_MASK 4, %11000000
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@switchtomain
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sta $C002
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sta $C004
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iny
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jmp RowLoop
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; next table can not cross a page boundary
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!if <* > $E8 {
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!align 255, 0
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}
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hgrrowlo
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!byte $00,$80,$00,$80,$00,$80,$00,$80
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!byte $28,$A8,$28,$A8,$28,$A8,$28,$A8
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!byte $50,$D0,$50,$D0,$50,$D0,$50,$D0
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; next table can not cross a page boundary
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!if <* > $E8 {
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!align 255, 0
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}
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hgrrowhi
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!byte $40,$40,$41,$41,$42,$42,$43,$43
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!byte $40,$40,$41,$41,$42,$42,$43,$43
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!byte $40,$40,$41,$41,$42,$42,$43,$43
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!if * > $6700 {
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!error "Code too large, adjust COPY_TO_AUXMEM macro"
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}
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