mirror of
https://github.com/sehugg/8bitworkshop.git
synced 2024-11-21 23:30:58 +00:00
510 lines
11 KiB
Plaintext
510 lines
11 KiB
Plaintext
EVENT__start = 1
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EVENT__postframe = 1
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EVENT__preframe = 1
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EVENT__kernel = 1
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EVENT__compute2digit = 1
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EVENT__fetchdigit = 1
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EVENT__AddBCD4 = 1
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EVENT__AddBCD2 = 1
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EVENT__SubBCD2 = 1
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EVENT__joybutton = 1
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.scope Main
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.zeropage
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BCDScore6_digits_b0:
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.res 1
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BCDScore6_digits_b8:
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.res 1
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BCDScore6_digits_b16:
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.res 1
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PFColor_pfcolor_b0:
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.res 1
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BGColor_bgcolor_b0:
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.res 1
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BCDScore2_digits_b0:
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.res 1
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.res 1
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BCDScore2_scorecolor_b0:
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.res 1
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.res 1
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TEMP:
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Kernel6Digit__2__tmp:
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.res 1
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.res 1
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.res 1
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.res 1
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.res 1
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.res 1
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.res 1
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.res 1
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.res 1
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.res 1
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.res 1
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.res 1
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.res 1
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.res 1
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.res 1
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Kernel2Digit__3__tmp:
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.res 1
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.res 1
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.res 1
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.code
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Main__INITDATA:
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.byte 86
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.byte 52
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.byte 18
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.byte 60
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.byte 2
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.byte 36
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.byte 86
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.byte 206
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.byte 62
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__Start:
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;;; start action Init__main_init__1
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.include "vcs-ca65.h"
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.macpack longbranch
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.define PAL 0
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__NMI:
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__Reset:
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__BRK:
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CLEAN_START
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ldy #9
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: lda Main__INITDATA-1,y
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sta BCDScore6_digits_b0-1,y
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dey
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bne :-
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;;; start action FrameLoop__start__3
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FrameLoop__start__4__NextFrame:
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FRAME_END
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FRAME_START
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;;; start action Kernel6Digit__preframe__5
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Digit0 = Kernel6Digit__2__tmp+0
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Digit1 = Kernel6Digit__2__tmp+2
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Digit2 = Kernel6Digit__2__tmp+4
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Digit3 = Kernel6Digit__2__tmp+6
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Digit4 = Kernel6Digit__2__tmp+8
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Digit5 = Kernel6Digit__2__tmp+10
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Kernel6Digit__preframe__7__BCD0 = Kernel6Digit__2__tmp+12
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Kernel6Digit__preframe__7__BCD1 = Kernel6Digit__2__tmp+13
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Kernel6Digit__preframe__7__BCD2 = Kernel6Digit__2__tmp+14
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lda BCDScore6_digits_b0
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sta Kernel6Digit__preframe__7__BCD0
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lda BCDScore6_digits_b8
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sta Kernel6Digit__preframe__7__BCD1
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lda BCDScore6_digits_b16
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sta Kernel6Digit__preframe__7__BCD2
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ldx #0 ; leftmost bitmap
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ldy #2 ; start from most-sigificant BCD value
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Kernel6Digit__preframe__7__Loop:
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lda Kernel6Digit__preframe__7__BCD0,y ; get BCD value
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and #$f0 ; isolate high nibble (* 16)
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lsr ; shift right 1 bit (* 8)
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clc
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adc #<FontTable
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sta Digit0,x ; store pointer lo byte
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lda #>FontTable
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adc #0
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sta Digit0+1,x ; store pointer hi byte
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inx
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inx ; next bitmap pointer
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lda Kernel6Digit__preframe__7__BCD0,y ; get BCD value (again)
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and #$f ; isolate low nibble
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asl
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asl
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asl ; * 8
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clc
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adc #<FontTable
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sta Digit0,x ; store pointer lo byte
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lda #>FontTable
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adc #0
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sta Digit0+1,x ; store pointer hi byte
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inx
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inx ; next bitmap pointer
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dey ; next BCD value
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bpl Kernel6Digit__preframe__7__Loop ; repeat until < 0
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;;; end action Kernel6Digit__preframe__5
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;;; start action Kernel2Digit__preframe__8
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lda #0
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sta Kernel2Digit__3__tmp+1
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sta Kernel2Digit__3__tmp+2
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;;; end action Kernel2Digit__preframe__8
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KERNEL_START
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;;; start action Kernel6Digit__kernel__10
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lda PFColor_pfcolor_b0
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sta COLUP0
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sta COLUP1
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lda #3
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sta NUSIZ0
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sta NUSIZ1
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; set horizontal position of player objects
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sta WSYNC
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sta HMCLR
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SLEEPR 24
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sta RESP0
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sta RESP1
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lda #$10
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sta HMP1
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sta WSYNC
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sta HMOVE
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SLEEPR 24 ; wait 24 cycles between write to HMOVE and HMxxx
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sta HMCLR
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lda #1
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sta VDELP0
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sta VDELP1
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;;; end action Kernel6Digit__kernel__10
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jsr Kernel6Digit__kernel__13
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;;; start action Kernel2Digit__kernel__16
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lda #$02
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sta CTRLPF
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; TODO: should be constants
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; and it's wrong, too!
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lda BCDScore2_scorecolor_b0+0
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sta COLUP0
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lda BCDScore2_scorecolor_b0+1
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sta COLUP1
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;;; end action Kernel2Digit__kernel__16
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jsr Kernel2Digit__kernel__19
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KERNEL_END
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;;; start action FrameLoop__postframe__40
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lsr SWCHB ; test Game Reset switch
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bcs FrameLoop__postframe__41__NoStart
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FrameLoop__postframe__41__NoStart:
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;;; end action FrameLoop__postframe__40
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;;; start action JoyButton__postframe__42
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lda INPT4 ;read button input
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bmi JoyButton__postframe__44__NotPressed
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;;; start action IncScore__joybutton__45
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;;; start action BCDMath__AddBCD4__48
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.ifnblank $0210
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lda #<$0210
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ldy #>$0210
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.endif
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;;; end action BCDMath__AddBCD4__48
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;;; start action BCDMath__AddBCD4__50
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; Adds value to 6-BCD-digit score.
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; A = 1st BCD digit
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; Y = 2nd BCD digit
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sed ; enter BCD mode
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clc ; clear carry
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adc BCDScore6_digits_b0
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sta BCDScore6_digits_b0
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tya
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adc BCDScore6_digits_b8
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sta BCDScore6_digits_b8
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lda BCDScore6_digits_b16
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adc #0
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sta BCDScore6_digits_b16
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cld ; exit BCD mode
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;;; end action BCDMath__AddBCD4__50
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;;; end action IncScore__joybutton__45
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JoyButton__postframe__44__NotPressed:
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;;; end action JoyButton__postframe__42
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jmp FrameLoop__start__4__NextFrame ; loop to next frame
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;;; end action FrameLoop__start__3
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; start main routine
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.segment "VECTORS"
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ZeroByte: .byte $00
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Return: .byte $60
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VecNMI:
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VecReset: .word __Reset
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VecBRK: .word __BRK
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.code
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;;; end action Init__main_init__1
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.rodata
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__ALIGNORIGIN:
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.rodata
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Kernel6Digit__kernel__13:
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; Display the resulting 48x8 bitmap
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; using the Digit0-5 pointers.
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Kernel6Digit__kernel__15__LoopCount = Kernel6Digit__2__tmp+12
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Kernel6Digit__kernel__15__Temp = Kernel6Digit__2__tmp+13
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lda BGColor_bgcolor_b0
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sta WSYNC
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sta COLUBK
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lda #7
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sta Kernel6Digit__kernel__15__LoopCount
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SLEEPR 20 ; TODO?
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:
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ldy Kernel6Digit__kernel__15__LoopCount ; counts backwards
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lda (Digit0),y ; load B0 (1st sprite byte)
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sta GRP0 ; B0 -> [GRP0]
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lda (Digit1),y ; load B1 -> A
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sta GRP1 ; B1 -> [GRP1], B0 -> GRP0
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sta WSYNC ; sync to next scanline
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lda (Digit2),y ; load B2 -> A
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sta GRP0 ; B2 -> [GRP0], B1 -> GRP1
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lda (Digit5),y ; load B5 -> A
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sta Kernel6Digit__kernel__15__Temp ; B5 -> temp
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lda (Digit4),y ; load B4
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tax ; -> X
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lda (Digit3),y ; load B3 -> A
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ldy Kernel6Digit__kernel__15__Temp ; load B5 -> Y
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sta GRP1 ; B3 -> [GRP1]; B2 -> GRP0
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stx GRP0 ; B4 -> [GRP0]; B3 -> GRP1
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sty GRP1 ; B5 -> [GRP1]; B4 -> GRP0
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sta GRP0 ; ?? -> [GRP0]; B5 -> GRP1
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dec Kernel6Digit__kernel__15__LoopCount ; go to next line
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bpl :- ; repeat until < 0
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lda #0 ; clear the sprite registers
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sta WSYNC
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sta GRP0
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sta GRP1
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sta GRP0
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sta GRP1
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sta COLUBK
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rts
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.assert >(Kernel6Digit__kernel__13) = >(*), error, "Kernel6Digit__kernel__13 crosses a page boundary!"
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.assert (* - Kernel6Digit__kernel__13) <= 72, error, .sprintf("Kernel6Digit__kernel__13 does not fit in 72 bytes, it took %d!", (* - Kernel6Digit__kernel__13))
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.if <(* - __ALIGNORIGIN) > 256-98
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.align $100
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.endif
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.rodata
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Kernel2Digit__kernel__19:
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lda #7
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sta Kernel2Digit__3__tmp+0
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Kernel2Digit__kernel__21__Loop:
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ldx #0
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sta WSYNC
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;;; start action Kernel2Digit__compute2digit__22
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lda Kernel2Digit__3__tmp+1 ; load 1st pf
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sta PF1 ; store 1st pf
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; first digit
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lda BCDScore2_digits_b0 + 0
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pha
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and #$0f
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asl
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asl
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asl
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;;; start action Kernel2Digit__fetchdigit__24
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adc Kernel2Digit__3__tmp+0
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tay
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; TODO: select your own?
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lda FontTablePF,y
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;;; end action Kernel2Digit__fetchdigit__24
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and #$0f
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ldy Kernel2Digit__3__tmp+2 ; load 2nd pf
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sta Kernel2Digit__3__tmp+1 + 0
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; second digit
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pla
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and #$f0
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lsr
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sty PF1 ; store 2nd pf
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;;; start action Kernel2Digit__fetchdigit__26
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adc Kernel2Digit__3__tmp+0
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tay
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; TODO: select your own?
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lda FontTablePF,y
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;;; end action Kernel2Digit__fetchdigit__26
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and #$f0
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ora Kernel2Digit__3__tmp+1 + 0
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sta Kernel2Digit__3__tmp+1 + 0
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;;; end action Kernel2Digit__compute2digit__22
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.if 2>1
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inx
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;;; start action Kernel2Digit__compute2digit__28
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lda Kernel2Digit__3__tmp+1 ; load 1st pf
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sta PF1 ; store 1st pf
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; first digit
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lda BCDScore2_digits_b0 + 1
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pha
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and #$0f
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asl
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asl
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asl
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;;; start action Kernel2Digit__fetchdigit__30
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adc Kernel2Digit__3__tmp+0
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tay
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; TODO: select your own?
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lda FontTablePF,y
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;;; end action Kernel2Digit__fetchdigit__30
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and #$0f
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ldy Kernel2Digit__3__tmp+2 ; load 2nd pf
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sta Kernel2Digit__3__tmp+1 + 1
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; second digit
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pla
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and #$f0
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lsr
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sty PF1 ; store 2nd pf
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;;; start action Kernel2Digit__fetchdigit__32
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adc Kernel2Digit__3__tmp+0
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tay
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; TODO: select your own?
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lda FontTablePF,y
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;;; end action Kernel2Digit__fetchdigit__32
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and #$f0
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ora Kernel2Digit__3__tmp+1 + 1
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sta Kernel2Digit__3__tmp+1 + 1
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;;; end action Kernel2Digit__compute2digit__28
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.else
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;;; start action Kernel2Digit__compute2digit__34
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lda Kernel2Digit__3__tmp+1 ; load 1st pf
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sta PF1 ; store 1st pf
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; first digit
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lda BCDScore2_digits_b0 + 0
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pha
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and #$0f
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asl
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asl
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asl
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;;; start action Kernel2Digit__fetchdigit__36
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adc Kernel2Digit__3__tmp+0
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tay
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; TODO: select your own?
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lda FontTablePF,y
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;;; end action Kernel2Digit__fetchdigit__36
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and #$0f
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ldy Kernel2Digit__3__tmp+2 ; load 2nd pf
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sta Kernel2Digit__3__tmp+1 + 0
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; second digit
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pla
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and #$f0
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lsr
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sty PF1 ; store 2nd pf
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;;; start action Kernel2Digit__fetchdigit__38
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adc Kernel2Digit__3__tmp+0
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tay
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; TODO: select your own?
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lda FontTablePF,y
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;;; end action Kernel2Digit__fetchdigit__38
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and #$f0
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ora Kernel2Digit__3__tmp+1 + 0
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sta Kernel2Digit__3__tmp+1 + 0
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;;; end action Kernel2Digit__compute2digit__34
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.endif
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; playfield
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dec Kernel2Digit__3__tmp+0
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jpl Kernel2Digit__kernel__21__Loop
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; dex
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; stx PF1
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rts
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.assert >(Kernel2Digit__kernel__19) = >(*), error, "Kernel2Digit__kernel__19 crosses a page boundary!"
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.assert (* - Kernel2Digit__kernel__19) <= 98, error, .sprintf("Kernel2Digit__kernel__19 does not fit in 98 bytes, it took %d!", (* - Kernel2Digit__kernel__19))
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FontTable:
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;;; start action FontTable__FontTable__53
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; Font table for digits 0-9 (8x8 pixels)
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;;{w:8,h:8,count:10,brev:1,flip:1};;
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.byte $00,$3c,$66,$66,$76,$6e,$66,$3c,$00,$7e,$18,$18,$18,$38,$18,$18
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.byte $00,$7e,$60,$30,$0c,$06,$66,$3c,$00,$3c,$66,$06,$1c,$06,$66,$3c
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.byte $00,$06,$06,$7f,$66,$1e,$0e,$06,$00,$3c,$66,$06,$06,$7c,$60,$7e
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.byte $00,$3c,$66,$66,$7c,$60,$66,$3c,$00,$18,$18,$18,$18,$0c,$66,$7e
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.byte $00,$3c,$66,$66,$3c,$66,$66,$3c,$00,$3c,$66,$06,$3e,$66,$66,$3c
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;;; end action FontTable__FontTable__53
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FontTablePF:
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;;; start action FontTablePF__FontTablePF__55
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; Font table for digits 0-9 (4x8 pixels)
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;;{w:8,h:8,count:10,brev:1,flip:1};;
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.byte $00,$00,$EE,$AA,$AA,$AA,$EE,$00
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.byte $00,$00,$22,$22,$22,$22,$22,$00
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.byte $00,$00,$EE,$88,$EE,$22,$EE,$00
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.byte $00,$00,$EE,$22,$66,$22,$EE,$00
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.byte $00,$00,$22,$22,$EE,$AA,$AA,$00
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.byte $00,$00,$EE,$22,$EE,$88,$EE,$00
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.byte $00,$00,$EE,$AA,$EE,$88,$EE,$00
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.byte $00,$00,$22,$22,$22,$22,$EE,$00
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.byte $00,$00,$EE,$AA,$EE,$AA,$EE,$00
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.byte $00,$00,$EE,$22,$EE,$AA,$EE,$00
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;;
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;;; end action FontTablePF__FontTablePF__55
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.endscope
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Main__Start = Main::__Start |