mirror of
https://github.com/cc65/cc65.git
synced 2024-11-19 21:32:19 +00:00
458 lines
9.1 KiB
ArmAsm
458 lines
9.1 KiB
ArmAsm
;
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; original audiotest.s by PeT (mess@utanet.at)
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;
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; cl65 -t gamate -o audiotest.bin audiotest.s
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;
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.include "gamate.inc"
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.zeropage
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addr: .word 0
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psa: .word 0
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readaddr: .word 0
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editbuffer1: .byte 0,0,0,0, 0,0,0,0
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writeaddr: .word 0
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editbuffer2: .byte 0,0,0,0, 0,0,0,0
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cursor: .byte 0
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controlslast: .byte 0
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controlsedge: .byte 0
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.bss
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temp_x: .byte 0
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temp_y: .byte 0
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temp_a: .byte 0
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irq_count: .byte 0
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nmi_count: .byte 0
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psx: .byte 0
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psy: .byte 0
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xpos: .byte 0
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ypos: .byte 0
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.rodata
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chars: .incbin "cga2.chr"
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hex2asc: .byte "0123456789abcdef"
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.code
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;-------------------------------------------------------------------------------
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.export IRQStub, NMIStub
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.proc NMIStub
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inc nmi_count
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rts
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.endproc
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.proc IRQStub
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inc irq_count
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rts
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.endproc
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;-------------------------------------------------------------------------------
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.export Start
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.proc Start
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sei
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lda #0
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sta ZP_IRQ_CTRL
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lda #>AUDIO_BASE
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sta writeaddr+1
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sta readaddr+1
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lda #<AUDIO_BASE
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sta writeaddr
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sta readaddr
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lda #$10
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sta editbuffer1+6
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lda #$e
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sta editbuffer2+5
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lda #$ff
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sta editbuffer2+3
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lda #$ff
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sta editbuffer2+4
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lda #$0f
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sta editbuffer2
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lda #$0f
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sta editbuffer2+1
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lda #$0e
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sta editbuffer2+2
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lda #$38
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sta editbuffer1+7
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lda #0
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sta LCD_XPOS
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sta LCD_YPOS
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sta irq_count
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sta cursor
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lda #1
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sta nmi_count
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cli
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lda #LCD_MODE_INC_Y
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sta LCD_MODE
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jsr printy
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lda #1
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sta ZP_IRQ_CTRL
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loop:
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lda irq_count
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loop1:
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cmp irq_count
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beq loop1
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lda irq_count
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and #7
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bne loop1
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lda #LCD_MODE_INC_Y
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sta LCD_MODE
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ldx #3
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ldy #32
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lda irq_count
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jsr printhex
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lda cursor
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ldy #0
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cmp #20
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bcc firstline
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sec
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sbc #20
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ldy #24
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firstline:
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sta LCD_X
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sty LCD_Y
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lda #' '
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jsr printsign
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norclearcursor:
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jsr inputs
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lda irq_count
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and #8
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bne nocursor
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lda cursor
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ldy #0
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cmp #20
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bcc firstline2
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sec
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sbc #20
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ldy #24
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firstline2:
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sta LCD_X
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sty LCD_Y
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lda #'x'
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jsr printsign
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nocursor:
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lda #LCD_MODE_INC_Y
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sta LCD_MODE
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jsr printy
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jmp loop
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.endproc
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.proc printy
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ldy #0
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loop1:
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tya
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pha
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asl
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tax
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lda readaddr,y
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ldy #8
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jsr printhex
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pla
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tay
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iny
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cpy #10
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bne loop1
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loop2:
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tya
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pha
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tya
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sec
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sbc #10
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asl
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tax
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lda readaddr,y
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ldy #16
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jsr printhex
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pla
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tay
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iny
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cpy #20
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bne loop2
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ldx #0
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ldy #32
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lda nmi_count
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jsr printhex
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rts
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.endproc
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;-------------------------------------------------------------------------------
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.proc inputs
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lda controlslast
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eor JOY_DATA
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and controlslast
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eor #$ff
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sta controlsedge
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and #JOY_DATA_UP
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bne notup
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lda cursor
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lsr
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tay
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bcs uplow
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lda readaddr,y
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clc
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adc #$10
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sta readaddr,y
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jmp notup
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uplow:
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lda readaddr,y
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clc
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adc #1
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sta readaddr,y
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notup:
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lda controlsedge
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and #JOY_DATA_DOWN
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bne notdown
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lda cursor
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lsr
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tay
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bcs downlow
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lda readaddr,y
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sec
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sbc #$10
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sta readaddr,y
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jmp notdown
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downlow:
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lda readaddr,y
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sec
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sbc #1
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sta readaddr,y
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notdown:
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lda controlsedge
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and #JOY_DATA_LEFT
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bne notleft
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lda cursor
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beq notleft
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dec cursor
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notleft:
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lda controlsedge
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and #JOY_DATA_RIGHT
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bne notright
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lda cursor
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cmp #40
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beq notright
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inc cursor
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notright:
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lda controlsedge
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and #JOY_DATA_START
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bne notstart
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lda #0
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sta AUDIO_BASE
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sta AUDIO_BASE+1
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sta AUDIO_BASE+2
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sta AUDIO_BASE+3
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sta AUDIO_BASE+4
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sta AUDIO_BASE+5
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sta AUDIO_BASE+6
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sta AUDIO_BASE+8
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sta AUDIO_BASE+9
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sta AUDIO_BASE+10
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sta AUDIO_BASE+11
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sta AUDIO_BASE+12
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sta AUDIO_BASE+13
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sta AUDIO_BASE+7
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notstart:
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lda controlsedge
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and #JOY_DATA_SELECT
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bne notselect
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lda editbuffer1
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sta AUDIO_BASE
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lda editbuffer1+1
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sta AUDIO_BASE+1
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lda editbuffer1+2
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sta AUDIO_BASE+2
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lda editbuffer1+3
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sta AUDIO_BASE+3
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lda editbuffer1+4
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sta AUDIO_BASE+4
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lda editbuffer1+5
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sta AUDIO_BASE+5
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lda editbuffer1+6
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sta AUDIO_BASE+6
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lda editbuffer2
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sta AUDIO_BASE+8
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lda editbuffer2+1
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sta AUDIO_BASE+9
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lda editbuffer2+2
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sta AUDIO_BASE+10
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lda editbuffer2+3
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sta AUDIO_BASE+11
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lda editbuffer2+4
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sta AUDIO_BASE+12
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lda editbuffer2+5
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sta AUDIO_BASE+13
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lda editbuffer1+7
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sta AUDIO_BASE+7
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notselect:
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lda controlsedge
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and #JOY_DATA_FIRE_A
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bne notbuttona
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ldy #0
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ldy #0
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writea:
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lda editbuffer1,y
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sta (writeaddr),y
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iny
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cpy #8
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bne writea
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writeb:
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lda editbuffer2-8,y
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sta (writeaddr),y
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iny
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cpy #16
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bne writeb
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notbuttona:
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lda controlsedge
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and #JOY_DATA_FIRE_B
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bne notbuttonb
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ldy #0
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reada:
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lda (readaddr),y
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sta editbuffer1,y
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iny
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cpy #8
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bne reada
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readb: lda (readaddr),y
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sta editbuffer2-8,y
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iny
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cpy #16
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bne readb
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notbuttonb:
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lda JOY_DATA
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sta controlslast
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rts
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.endproc
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;-------------------------------------------------------------------------------
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.proc printstring
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sta psa
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stx psa+1
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ldx #0
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stx psx
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sty psy
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printstring2:
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ldy #0
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lda (psa),y
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beq printstring1
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ldx psx
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stx LCD_X
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ldy psy
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sty LCD_Y
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jsr printsign
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inc psx
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lda psa
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clc
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adc #1
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sta psa
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lda psa+1
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adc #0
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sta psa+1
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jmp printstring2
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printstring1:
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rts
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.endproc
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.proc printstringy
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sta psa
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stx psa+1
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printstring2:
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ldy #0
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lda (psa),y
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beq printstring1
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jsr printsign
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lda psa
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clc
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adc #1
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sta psa
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lda psa+1
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adc #0
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sta psa+1
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jmp printstring2
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printstring1:
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rts
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.endproc
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.proc printhex
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pha
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lsr
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lsr
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lsr
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lsr
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and #$0f
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stx temp_x
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tax
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lda hex2asc,x
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ldx temp_x
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stx LCD_X
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sty LCD_Y
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jsr printsign
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pla
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and #$0f
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inx
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stx temp_x
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tax
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lda hex2asc,x
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ldx temp_x
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stx LCD_X
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sty LCD_Y
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jmp printsign
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.endproc
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.proc printsign
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sty temp_y
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stx temp_x
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sta temp_a
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lda temp_a
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sta addr
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lda #0
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sta addr+1
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asl addr
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rol addr+1
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asl addr
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rol addr+1
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asl addr
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rol addr+1
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lda addr
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clc
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adc #<chars
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sta addr
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lda addr+1
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adc #>chars
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sta addr+1
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ldx #8
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ldy #0
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printsign1:
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lda (addr),y
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sta LCD_DATA
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iny
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dex
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bne printsign1
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ldx temp_x
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ldy temp_y
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rts
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.endproc
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