midline: ill-advised demo
This commit is contained in:
Vince Weaver
parent
cb276305fc
commit
b76e1b20ef
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include ../../Makefile.inc
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DOS33 = ../../utils/dos33fs-utils/dos33
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TOKENIZE = ../../utils/asoft_basic-utils/tokenize_asoft
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LINKERSCRIPTS = ../../linker_scripts
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EMPTYDISK = ../../empty_disk/empty.dsk
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all: demo.dsk
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demo.dsk: HELLO MIDLINE
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cp $(EMPTYDISK) demo.dsk
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$(DOS33) -y demo.dsk SAVE A HELLO
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$(DOS33) -y demo.dsk BSAVE -a 0x6000 MIDLINE
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###
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HELLO: hello.bas
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$(TOKENIZE) < hello.bas > HELLO
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###
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MIDLINE: midline.o
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ld65 -o MIDLINE midline.o -C $(LINKERSCRIPTS)/apple2_6000.inc
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midline.o: midline.s \
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zp.inc hardware.inc
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ca65 -o midline.o midline.s -l midline.lst
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###
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clean:
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rm -f *~ *.o *.lst HELLO MIDLINE
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@ -0,0 +1,10 @@
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gr_offsets_h:
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.byte $4,$4,$5,$5,$6,$6,$7,$7
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.byte $4,$4,$5,$5,$6,$6,$7,$7
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.byte $4,$4,$5,$5,$6,$6,$7,$7
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gr_offsets_l:
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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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@ -0,0 +1,51 @@
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; soft-switches
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; yes, I know these aren't necessary the "official" names
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KEYBOARD = $C000 ; Read keypress+128
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EIGHTYSTOREOFF = $C000 ; (write) turns off 80store
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EIGHTYSTOREON = $C001 ; (write) page2 writes to AUX memory
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WRMAINRAM = $C004 ; (write)
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WRAUXRAM = $C005 ; (write)
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CLR80COL = $C00C ; (write)
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SET80COL = $C00D ; (write)
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CLRMOUSETET = $C00E ; (write) disable moust text
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SETMOUSETEXT = $C00F ; (write) enable mouse text
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KEYRESET = $C010
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VBLANK = $C019 ; *not* RDVBL (VBL signal low) (iie, opposite iigs)
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RDVBLBAR = $C019 ; iic
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TBCOLOR = $C022 ; IIgs text foreground / background colors
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CLOCKCTL = $C034 ; bits 0-3 are IIgs border color
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NEWVIDEO = $C029 ; IIgs graphics modes
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RDVBLMSK = $C041 ; iic read vbl interrupt
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SET_GR = $C050
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SET_TEXT= $C051
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FULLGR = $C052
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TEXTGR = $C053
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PAGE1 = $C054
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PAGE2 = $C055
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LORES = $C056
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HIRES = $C057
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DISVBL = $C05B ; (write) (iic) (ioudison) disable VBL interrupt
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ENVBL = $C05B ; (write) (iic) (ioudison) enable VBL interrupt
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CLRAN3 = $C05E ; (write) in 80-col mode, enable double graphics
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SETAN3 = $C05F ; (write) in 80-col mode, disable double graphics
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PTRIG = $C070 ; analog input reset / reset VBL interrupt (iic)
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IOUDISON = $C07E ; (write) disable IOU
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IOUDISOFF = $C07F ; (write) enable IOU
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; ROM routines
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SETCOL = $F864 ; COLOR=A*17
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SETGR = $FB40
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VLINE = $F828 ; VLINE A,$2D at Y
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HGR = $F3E2
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HPOSN = $F411
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HPLOT0 = $F457 ; plot at (Y,X), (A)
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HGLIN = $F53A ; line to (X,A),(Y)
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ROM_TEXT2COPY = $F962 ; iigs
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ROM_MACHINEID = $FBB3 ; iigs
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@ -0,0 +1,5 @@
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5 HOME
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10 PRINT CHR$(4);"CATALOG"
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15 PRINT:PRINT "LOADING DOUBLE..."
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'20 PRINT CHR$(4);"BRUN DOUBLE"
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@ -0,0 +1,175 @@
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; Blargh
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; by Vince `deater` Weaver
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.include "zp.inc"
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.include "hardware.inc"
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double:
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lda #0
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sta FRAME
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lda #$ff
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sta FRAMEH
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;================================
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; Clear screen and setup graphics
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;================================
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jsr SETGR ; set lo-res 40x40 mode
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bit LORES
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sta FULLGR
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;====================================================
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; setup text page2 screen of "Apple II Forever" text
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;====================================================
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; there are much better ways to accomplish this
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sta SETMOUSETEXT
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ldy #0
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ldx #0
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sty XX
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a24e_newy:
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lda gr_offsets_l,Y
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sta stringing_smc+1
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lda gr_offsets_h,Y
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clc
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adc #4
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sta stringing_smc+2
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a24e_loop:
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lda a2_string,X
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bne keep_stringing
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ldx #0
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lda a2_string,X
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keep_stringing:
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inx
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eor #$80
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stringing_smc:
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sta $d000
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inc stringing_smc+1
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inc XX
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lda XX
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cmp #40
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bne a24e_loop
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lda #0
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sta XX
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iny
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cpy #24
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bne a24e_newy
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stringing_done:
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bit PAGE2
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blog:
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ldx #255
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blog_loop:
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jsr delay_12 ; 12
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bit SET_GR ; 4
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; 16
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jsr delay_12 ; 12
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; 28
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bit SET_TEXT ; 4
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; 32
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jsr delay_12 ; 12
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; 44
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bit SET_GR ; 4
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; 48
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jsr delay_12 ; 12
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; 60
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dex ; 2
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; bne blog_loop ; 2/3
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jmp blog_loop ; 3
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delay_12:
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rts
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.if 0
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; -1
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;==================================
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; vblank = 4550 cycles
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; Try X=226 Y=4 cycles=4545
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skip_vblank:
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lda $00 ; nop3
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ldy #4 ; 2
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loop3: ldx #226 ; 2
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loop4: dex ; 2
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bne loop4 ; 2nt/3
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dey ; 2
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bne loop3 ; 2nt/3
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jmp midline_loop ; 3
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.align $100
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;===================================
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; wait y-reg times 10
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;===================================
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loop10:
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bne skip
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waitx10:
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dey ; wait y-reg times 10 ; 2
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skip:
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dey ; 2
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nop ; 2
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bne loop10 ; 2/3
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rts ; 6
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;===================================
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; wait x-reg times 1000
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;===================================
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loop1k:
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pha ; 3
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pla ; 4
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nop ; 2
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nop ; 2
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waitx1k:
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ldy #98 ; wait x-reg times 1000 ; 2
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jsr waitx10 ; 980
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nop ; 2
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dex ; 2
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bne loop1k ; 2/3
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rts1:
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rts ; 6
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.include "vblank.s"
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.endif
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.include "gr_offsets.s"
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a2_string:
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; 012345678901234567 8 9
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.byte "Apple II Forever!! ",'@'+$80," "
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.byte "Apple II Forever! ",'@'+$80," ",0
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@ -0,0 +1,86 @@
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;=========================
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; zero page
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;=========================
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; ZX02 addresses
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ZP=$00
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offset = ZP+0
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ZX0_src = ZP+2
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ZX0_dst = ZP+4
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bitr = ZP+6
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pntr = ZP+7
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CH = $24
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GBASL = $26
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GBASH = $27
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BASL = $28
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BASH = $29
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V2 = $2D
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COLOR = $30
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; pt3 player
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ORNAMENT_L = $60
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ORNAMENT_H = $61
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SAMPLE_L = $62
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SAMPLE_H = $63
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LOOP = $64
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MB_ADDR_L = $65
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MB_ADDR_H = $66
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MB_VALUE = $67
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DONE_PLAYING = $68
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DONE_SONG = $69
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PT3_TEMP = $6A
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APPLEII_MODEL = $6B
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AY_REGISTERS = $70
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A_FINE_TONE = $70
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A_COARSE_TONE = $71
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B_FINE_TONE = $72
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B_COARSE_TONE = $73
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C_FINE_TONE = $74
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C_COARSE_TONE = $75
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NOISE = $76
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ENABLE = $77
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PT3_MIXER_VAL = $77
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A_VOLUME = $78
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B_VOLUME = $79
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C_VOLUME = $7A
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ENVELOPE_FINE = $7B
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ENVELOPE_COARSE = $7C
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ENVELOPE_SHAPE = $7D
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PATTERN_L = $7E
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PATTERN_H = $7F
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DRAW_PAGE = $8A
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SOUND_STATUS = $DE
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SOUND_DISABLED = $80
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SOUND_IN_LC = $01 ; $01 sound effects in language card
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SOUND_MOCKINGBOARD = $02 ; mockingboard detected
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HGRPAGE = $E6
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TEMPY = $F0
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XX = $F1
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FRAME = $F2
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FRAMEH = $F3
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YPOS = $FA
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TCOLOR = $FB
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INL = $FC
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INH = $FD
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OUTL = $FE
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OUTH = $FF
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