shape_table: trying to find a good 16-byte entry
This commit is contained in:
Vince Weaver
parent
d29d6649e5
commit
ef0fbe4048
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@ -8,7 +8,8 @@ EMPTYDISK = ../../../empty_disk/empty.dsk
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all: gear.dsk
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gear.dsk: HELLO APPLE.BAS GEAR.BAS \
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APPLE2 GEAR LINE32 PATTERN PATTERN_LOGO SQUARE_WAVE
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APPLE2 GEAR LINE32 PATTERN PATTERN_LOGO SQUARE_WAVE \
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LINE16 HERRING16 STRIPE17
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cp $(EMPTYDISK) gear.dsk
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$(DOS33) -y gear.dsk SAVE A HELLO
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$(DOS33) -y gear.dsk SAVE A GEAR.BAS
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@ -16,6 +17,9 @@ gear.dsk: HELLO APPLE.BAS GEAR.BAS \
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$(DOS33) -y gear.dsk BSAVE -a 0x3f5 GEAR
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$(DOS33) -y gear.dsk BSAVE -a 0xc00 APPLE2
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$(DOS33) -y gear.dsk BSAVE -a 0xc00 LINE32
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$(DOS33) -y gear.dsk BSAVE -a 0xe7 LINE16
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$(DOS33) -y gear.dsk BSAVE -a 0xe7 STRIPE17
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$(DOS33) -y gear.dsk BSAVE -a 0xc00 HERRING16
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$(DOS33) -y gear.dsk BSAVE -a 0xc00 PATTERN
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$(DOS33) -y gear.dsk BSAVE -a 0x3f5 PATTERN_LOGO
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$(DOS33) -y gear.dsk BSAVE -a 0xc00 SQUARE_WAVE
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@ -69,6 +73,33 @@ LINE32: line32.o
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line32.o: line32.s
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ca65 -o line32.o line32.s -l line32.lst
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###
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LINE16: line16.o
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ld65 -o LINE16 line16.o -C $(LINKERSCRIPTS)/apple2_e7_zp.inc
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line16.o: line16.s
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ca65 -o line16.o line16.s -l line16.lst
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###
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STRIPE17: stripe17.o
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ld65 -o STRIPE17 stripe17.o -C $(LINKERSCRIPTS)/apple2_e7_zp.inc
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stripe17.o: stripe17.s
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ca65 -o stripe17.o stripe17.s -l stripe17.lst
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###
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HERRING16: herring16.o
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ld65 -o HERRING16 herring16.o -C $(LINKERSCRIPTS)/apple2_c00.inc
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herring16.o: herring16.s
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ca65 -o herring16.o herring16.s -l herring16.lst
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###
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PATTERN: pattern.o
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@ -0,0 +1,86 @@
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; 16B herringbone pattern
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; FIXME: depends on memory init
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; zero page locations
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HGR_SHAPE = $1A
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HGR_SHAPE2 = $1B
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HGR_BITS = $1C
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GBASL = $26
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GBASH = $27
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A5H = $45
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XREG = $46
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YREG = $47
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; C0-CF should be clear
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; D0-DF?? D0-D5 = HGR scratch?
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HGR_DX = $D0 ; HGLIN
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HGR_DX2 = $D1 ; HGLIN
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HGR_DY = $D2 ; HGLIN
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HGR_QUADRANT = $D3
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HGR_E = $D4
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HGR_E2 = $D5
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HGR_X = $E0
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HGR_X2 = $E1
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HGR_Y = $E2
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HGR_COLOR = $E4
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HGR_HORIZ = $E5
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HGR_SCALE = $E7
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HGR_SHAPE_TABLE = $E8
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HGR_SHAPE_TABLE2= $E9
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HGR_COLLISIONS = $EA
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HGR_ROTATION = $F9
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FRAME = $FC
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XPOS = $FD
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YPOS = $FF
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; ROM calls
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HGR2 = $F3D8
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HGR = $F3E2
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HPOSN = $F411
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XDRAW0 = $F65D
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XDRAW1 = $F661
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RESTORE = $FF3F
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tiny_xdraw:
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jsr HGR2 ; Hi-res, full screen ; 3
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; Y=0, A=0 after this call
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; lda #10
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; sta HGR_SCALE
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; A and Y are 0 here.
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; X is left behind by the boot process?
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; ldy #0
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; ldx #100
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; lda #100
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jsr HPOSN ; set screen position to X= (y,x) Y=(a)
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; saves X,Y,A to zero page
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; after Y= orig X/7
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; A and X are ??
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tiny_loop:
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; ldx #<shape_table ; point to bottom byte of shape address
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; ldy #>shape_table ; point to top byte of shape address
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; ROT in A
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; this will be 0 2nd time through loop, arbitrary otherwise
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; lda #1 ; ROT=1
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jsr XDRAW0 ; XDRAW 1 AT X,Y
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; Both A and X are 0 at exit
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; Z flag set on exit
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; Y varies
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inx ; X=1
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txa ; A=1
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tay ; Y=1
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bne tiny_loop ; bra
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; be sure this is at address $0101, easy to set address
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shape_table:
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.byte $04,$00
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@ -0,0 +1,92 @@
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; 16B weird line pattern
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; zero page locations
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HGR_SHAPE = $1A
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HGR_SHAPE2 = $1B
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HGR_BITS = $1C
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GBASL = $26
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GBASH = $27
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A5H = $45
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XREG = $46
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YREG = $47
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; C0-CF should be clear
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; D0-DF?? D0-D5 = HGR scratch?
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HGR_DX = $D0 ; HGLIN
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HGR_DX2 = $D1 ; HGLIN
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HGR_DY = $D2 ; HGLIN
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HGR_QUADRANT = $D3
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HGR_E = $D4
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HGR_E2 = $D5
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HGR_X = $E0
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HGR_X2 = $E1
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HGR_Y = $E2
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HGR_COLOR = $E4
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HGR_HORIZ = $E5
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HGR_SCALE = $E7
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HGR_SHAPE_TABLE = $E8
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HGR_SHAPE_TABLE2= $E9
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HGR_COLLISIONS = $EA
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HGR_ROTATION = $F9
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FRAME = $FC
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XPOS = $FD
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YPOS = $FF
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; ROM calls
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HGR2 = $F3D8
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HGR = $F3E2
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HPOSN = $F411
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XDRAW0 = $F65D
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XDRAW1 = $F661
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RESTORE = $FF3F
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tiny_xdraw:
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.byte $0A ; scale at $E7 (also harmless asl)
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jsr HGR2 ; Hi-res, full screen ; 3
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; Y=0, A=0 after this call
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; lda #10
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; sta HGR_SCALE
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; A and Y are 0 here.
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; X is left behind by the boot process?
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; ldy #0
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; ldx #100
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; lda #100
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; jsr HPOSN ; set screen position to X= (y,x) Y=(a)
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; saves X,Y,A to zero page
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; after Y= orig X/7
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; A and X are ??
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tiny_loop:
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; ldx #<shape_table ; point to bottom byte of shape address
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; ldy #>shape_table ; point to top byte of shape address
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ldy #$e8
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ldx #$0e
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; ROT in A
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; this will be 0 2nd time through loop, arbitrary otherwise
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lda #1 ; ROT=1
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jsr XDRAW0 ; XDRAW 1 AT X,Y
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; Both A and X are 0 at exit
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; Z flag set on exit
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; Y varies
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; jsr $F666 ; rot in X, a=0
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; inx
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; inx ; X=1
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; txa ; A=1
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; tay ; Y=1
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beq tiny_loop ; bra
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; be sure this is at address $0101, easy to set address
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;shape_table:
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; .byte $04,$00
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@ -1,4 +1,4 @@
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; Tiny Xdraw
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; 32B weird line pattern
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; zero page locations
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HGR_SHAPE = $1A
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@ -0,0 +1,92 @@
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; 16B weird line pattern
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; zero page locations
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HGR_SHAPE = $1A
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HGR_SHAPE2 = $1B
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HGR_BITS = $1C
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GBASL = $26
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GBASH = $27
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A5H = $45
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XREG = $46
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YREG = $47
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; C0-CF should be clear
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; D0-DF?? D0-D5 = HGR scratch?
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HGR_DX = $D0 ; HGLIN
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HGR_DX2 = $D1 ; HGLIN
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HGR_DY = $D2 ; HGLIN
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HGR_QUADRANT = $D3
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HGR_E = $D4
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HGR_E2 = $D5
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HGR_X = $E0
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HGR_X2 = $E1
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HGR_Y = $E2
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HGR_COLOR = $E4
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HGR_HORIZ = $E5
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HGR_SCALE = $E7
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HGR_SHAPE_TABLE = $E8
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HGR_SHAPE_TABLE2= $E9
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HGR_COLLISIONS = $EA
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HGR_ROTATION = $F9
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FRAME = $FC
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XPOS = $FD
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YPOS = $FF
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; ROM calls
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HGR2 = $F3D8
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HGR = $F3E2
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HPOSN = $F411
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XDRAW0 = $F65D
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XDRAW1 = $F661
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RESTORE = $FF3F
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tiny_xdraw:
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; .byte $0A ; scale at $E7 (also harmless asl)
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jsr HGR2 ; Hi-res, full screen ; 3
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; Y=0, A=0 after this call
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; lda #10
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; sta HGR_SCALE
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; A and Y are 0 here.
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; X is left behind by the boot process?
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; ldy #0
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; ldx #100
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; lda #100
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jsr HPOSN ; set screen position to X= (y,x) Y=(a)
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; saves X,Y,A to zero page
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; after Y= orig X/7
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; A and X are ??
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tiny_loop:
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; ldx #<shape_table ; point to bottom byte of shape address
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; ldy #>shape_table ; point to top byte of shape address
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ldy #$e8
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ldx #$0e
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; ROT in A
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; this will be 0 2nd time through loop, arbitrary otherwise
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lda #1 ; ROT=1
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jsr XDRAW0 ; XDRAW 1 AT X,Y
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; Both A and X are 0 at exit
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; Z flag set on exit
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; Y varies
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; jsr $F666 ; rot in X, a=0
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; inx
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; inx ; X=1
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; txa ; A=1
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; tay ; Y=1
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beq tiny_loop ; bra
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; be sure this is at address $0101, easy to set address
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;shape_table:
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; .byte $04,$00
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@ -0,0 +1,12 @@
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MEMORY {
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ZP: start = $E7, size = $90, type = rw;
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RAM: start = $E7, size = $8E00, file = %O;
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}
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SEGMENTS {
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CODE: load = RAM, type = ro;
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#RODATA: load = RAM, type = ro;
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#DATA: load = RAM, type = rw;
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#BSS: load = RAM, type = bss, define = yes;
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ZEROPAGE: load = ZP, type = ro;
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}
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