mirror of
https://github.com/blondie7575/GSCats.git
synced 2024-11-22 06:31:48 +00:00
141 lines
2.5 KiB
ArmAsm
141 lines
2.5 KiB
ArmAsm
;
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; loadingBar
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; A simple GUI element to show loading progress
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;
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; Created by Quinn Dunki on 7/20/23
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;
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BORDER = $FF
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BORDERL = $1F
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BORDERR = $F1
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FILL = $22
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EMPTY = $ee
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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; advanceLoadingBar
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;
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; A = Bytes to advance
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;
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; Trashes SCRATCHL
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;
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advanceLoadingBar:
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sta SCRATCHL
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lda currentLoadingBar+CBR_CURRENT
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clc
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adc SCRATCHL
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cmp currentLoadingBar+CBR_FINAL
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beq advanceLoadingBarDone
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bcs advanceLoadingBarClamp
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advanceLoadingBarDone:
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sta currentLoadingBar+CBR_CURRENT
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rts
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advanceLoadingBarClamp:
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lda currentLoadingBar+CBR_FINAL
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bra advanceLoadingBarDone
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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; renderLoadingBar
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;
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; Not very fast
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;
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renderLoadingBar:
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SAVE_AXY
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ldy #0
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ldx currentLoadingBar+CBR_VRAM
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BITS8A
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lda #BORDERL ; Left border
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sta VRAMBANK,x
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sta VRAMBANK+160,x
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sta VRAMBANK+160*2,x
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sta VRAMBANK+160*3,x
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sta VRAMBANK+160*4,x
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sta VRAMBANK+160*5,x
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sta VRAMBANK+160*6,x
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sta VRAMBANK+160*7,x
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sta VRAMBANK+160*8,x
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sta VRAMBANK+160*9,x
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sta VRAMBANK+160*10,x
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sta VRAMBANK+160*11,x
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sta VRAMBANK+160*12,x
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sta VRAMBANK+160*13,x
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sta VRAMBANK+160*14,x
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sta VRAMBANK+160*15,x
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inx
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renderLoadingBarLoop:
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lda #BORDER
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sta VRAMBANK,x ; Top border
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sta VRAMBANK+160*15,x ; Bottom border
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cpy currentLoadingBar+CBR_CURRENT
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bcc renderLoadingBarFillReady
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jmp renderLoadingBarEmpty
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renderLoadingBarFillReady:
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lda #FILL
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renderLoadingBarFill:
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sta VRAMBANK+160*1,x ; Bar
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sta VRAMBANK+160*2,x
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sta VRAMBANK+160*3,x
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sta VRAMBANK+160*4,x
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sta VRAMBANK+160*5,x
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sta VRAMBANK+160*6,x
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sta VRAMBANK+160*7,x ; Bar
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sta VRAMBANK+160*8,x
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sta VRAMBANK+160*9,x
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sta VRAMBANK+160*10,x
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sta VRAMBANK+160*11,x
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sta VRAMBANK+160*12,x
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sta VRAMBANK+160*13,x
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sta VRAMBANK+160*14,x
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inx
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iny
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cpy currentLoadingBar+CBR_FINAL
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bne renderLoadingBarLoop
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lda #BORDERR ; Right border
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sta VRAMBANK,x
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sta VRAMBANK+160,x
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sta VRAMBANK+160*2,x
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sta VRAMBANK+160*3,x
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sta VRAMBANK+160*4,x
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sta VRAMBANK+160*5,x
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sta VRAMBANK+160*6,x
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sta VRAMBANK+160*7,x
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sta VRAMBANK+160*8,x
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sta VRAMBANK+160*9,x
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sta VRAMBANK+160*10,x
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sta VRAMBANK+160*11,x
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sta VRAMBANK+160*12,x
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sta VRAMBANK+160*13,x
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sta VRAMBANK+160*14,x
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sta VRAMBANK+160*15,x
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BITS16
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RESTORE_AXY
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rts
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renderLoadingBarEmpty:
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.a8
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lda #EMPTY
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jmp renderLoadingBarFill
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CBR_ACTIVE = 0
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CBR_CURRENT = 2
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CBR_FINAL = 4
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CBR_VRAM = 6
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currentLoadingBar:
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.word 0 ; Active
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.word 0 ; Current progress in bytes
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.word 66 ; Final progress in bytes
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.word $5eb4 ; VRAM position (top left)
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