mirror of
https://github.com/deater/dos33fsprogs.git
synced 2025-03-25 08:29:55 +00:00
demosplash: work on 1k entry
This commit is contained in:
Vince Weaver
parent
5d3bdbce3a
commit
0507b6bd37
78
demos/lovebyte2023/1k/Makefile
Normal file
78
demos/lovebyte2023/1k/Makefile
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@ -0,0 +1,78 @@
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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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EMPTYDISK = ../../../empty_disk/empty.dsk
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PICTUREDSK = ~/research/picturedsk.git/picturedsk
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LINKER_SCRIPTS = ../../../linker_scripts/
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ZX02 = ~/research/6502_compression/zx02.git/build/zx02
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all: apple_desire.dsk
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###
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apple_desire.dsk: HELLO APPLE_DESIRE AD
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cp $(EMPTYDISK) apple_desire.dsk
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$(DOS33) -y apple_desire.dsk SAVE A HELLO
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$(DOS33) -y apple_desire.dsk BSAVE -a 0xc00 APPLE_DESIRE
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$(DOS33) -y apple_desire.dsk BSAVE -a 0x6000 AD
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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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submit: apple2_desire.zip
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apple2_desire.zip: APPLE_DESIRE apple_desire.dsk
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mkdir -p demosplash2022_apple2_desire
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mkdir -p demosplash2022_apple2_desire/src
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cp APPLE_DESIRE ./demosplash2022_apple2_desire
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cp *.s ./demosplash2022_apple2_desire/src
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cp *.inc ./demosplash2022_apple2_desire/src
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cp file_id.diz ./demosplash2022_apple2_desire
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cp apple_desire.dsk ./demosplash2022_apple2_desire
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cp apple2_desire.mkv ./demosplash2022_apple2_desire
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cp a2_desire_screen.png ./demosplash2022_apple2_desire
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zip -r apple2_desire.zip demosplash2022_apple2_desire
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####
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APPLE_DESIRE: apple_desire.o
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ld65 -o APPLE_DESIRE apple_desire.o -C $(LINKER_SCRIPTS)/apple2_c00.inc
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apple_desire.o: apple_desire.s \
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logo_intro.s zp.inc \
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ay3_write_regs.s apple_desire.s interrupt_handler.s \
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play_frame.s draw_letter.s freq.s freq_h.s bamps.s \
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apple_logo.s \
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mA2E_4.s mockingboard_constants.s mockingboard_init.s tracker_init.s
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ca65 -o apple_desire.o apple_desire.s -l apple_desire.lst
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####
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APPLE_DESIRE.ZX02: APPLE_DESIRE
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$(ZX02) -f APPLE_DESIRE APPLE_DESIRE.ZX02
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AD: ad.o
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ld65 -o AD ad.o -C $(LINKER_SCRIPTS)/apple2_6000.inc
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ad.o: ad.s APPLE_DESIRE.ZX02
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ca65 -o ad.o ad.s -l ad.lst
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####
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make_points: make_points.o
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$(CC) -o make_points make_points.o
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make_points.o: make_points.c
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$(CC) $(CFLAGS) -c make_points.c
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####
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clean:
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rm -f *~ *.o *.lst APPLE_DESIRE *.zip make_points
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26
demos/lovebyte2023/1k/ad.s
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26
demos/lovebyte2023/1k/ad.s
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;
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; by deater (Vince Weaver) <vince@deater.net>
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.include "zp.inc"
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.include "hardware.inc"
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ad_start:
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; size in ldsizeh:ldsizel (f1/f0)
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lda #<src
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sta zx_src_l+1
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lda #>src
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sta zx_src_h+1
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lda #$c
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jsr zx02_full_decomp
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jmp $c00
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.include "zx02_optim.s"
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src:
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.incbin "APPLE_DESIRE.ZX02"
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151
demos/lovebyte2023/1k/apple_desire.s
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151
demos/lovebyte2023/1k/apple_desire.s
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@ -0,0 +1,151 @@
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; Apple II graphics/music in 1k
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; by deater (Vince Weaver) <vince@deater.net>
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; Zero Page
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.include "zp.inc"
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.include "hardware.inc"
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apple2_desire:
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; clear both pages of graphics
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jsr HGR2
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; Y is 0 here
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dey ; color = $FF
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sty HGR_BITS
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lda #$20 ; clear page1
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jsr BKGND+2
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; A and Y are 0 now?
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;===================
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; music Player Setup
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; assume mockingboard in slot#4
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; inline mockingboard_init
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.include "mockingboard_init.s"
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.include "tracker_init.s"
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cli ; enable music
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.if 0
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forever:
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sta OUTL
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sta LINE
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lda #$d0
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sta OUTH
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line_loop:
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lda LINE
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jsr HPOSN ; (Y,X),(A) (values stores in HGRX,XH,Y)
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; first top right
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ldy #0
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out_loop:
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lda (OUTL),Y
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sta (GBASL),Y
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dey
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bne out_loop
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inc LINE
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bne line_loop
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end:
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lda WHICH_TRACK
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beq forever
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.endif
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.include "logo_intro.s"
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;========================
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; flip pages forever
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main_loop:
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lda FRAME
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and #$80
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; clc
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; rol
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asl
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rol
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tax
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lda PAGE1,X
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lda WHICH_TRACK
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beq main_loop
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rot_rot_rot:
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lda #$0
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jsr draw_apple
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inc rot_rot_rot+1
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bne blah
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dec scale_smc
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blah:
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; beq main_loop
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; lda AY_REGS+8
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; sta HGR_SCALE
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lda HGR_PAGE
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eor #$60
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sta HGR_PAGE
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bne main_loop
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.include "interrupt_handler.s"
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.include "mockingboard_constants.s"
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.include "apple_logo.s"
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.include "draw_letter.s"
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.include "freq.s"
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.include "bamps.s"
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letters_x:
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.byte 14,62,110,154,176,220
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letters_l:
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.byte <letter_d,<letter_e,<letter_s,<letter_i,<letter_r,<letter_e
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;letters_h:
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; .byte >letter_d,>letter_e,>letter_s,>letter_i,>letter_r,>letter_e
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;.align $100
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.include "freq_h.s"
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; logo
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letter_d:
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.include "./letters/d.inc"
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letter_e:
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.include "./letters/e.inc"
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letter_s:
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.include "./letters/s.inc"
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letter_i:
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.include "./letters/i.inc"
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letter_r:
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.include "./letters/r.inc"
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; music
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.include "mA2E_4.s"
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.include "apple_shape.s"
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37
demos/lovebyte2023/1k/apple_logo.s
Normal file
37
demos/lovebyte2023/1k/apple_logo.s
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@ -0,0 +1,37 @@
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draw_apple:
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;=============================
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; draw apple shape table logo
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;=============================
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; rotation in A
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pha
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scale_smc:
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lda #10
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sta HGR_SCALE
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ldy #0
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ldx #60
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txa
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; lda #60
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jsr HPOSN ; set screen position to X= (y,x) Y=(a)
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ldx #<apple_table ; point to bottom byte of shape address
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ldy #>apple_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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pla ; ROT
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jmp 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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;apple_table:
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;.byte $27,$2c,$35,$8e,$24,$2c
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;.byte $35,$be,$09,$24,$2c,$35,$be,$09
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;.byte $20,$24,$8c,$12,$2d,$3c,$37,$2e
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;.byte $0d,$25,$24,$4f,$39,$36,$2e,$00
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5
demos/lovebyte2023/1k/apple_shape.s
Normal file
5
demos/lovebyte2023/1k/apple_shape.s
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@ -0,0 +1,5 @@
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apple_table:
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.byte $27,$2c,$35,$8e,$24,$2c
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.byte $35,$be,$09,$24,$2c,$35,$be,$09
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.byte $20,$24,$8c,$12,$2d,$3c,$37,$2e
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.byte $0d,$25,$24,$4f,$39,$36,$2e,$00
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32
demos/lovebyte2023/1k/ay3_write_regs.s
Normal file
32
demos/lovebyte2023/1k/ay3_write_regs.s
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@ -0,0 +1,32 @@
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;=====================
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;=====================
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;=====================
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; ay3 write regs
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;=====================
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;=====================
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;=====================
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; write all 14 registers at AY_REGS
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ay3_write_regs:
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; bytes
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ldx #13 ; 2
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ay3_write_reg_loop:
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lda #MOCK_AY_LATCH_ADDR ; latch_address for PB1 ; 2
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ldy #MOCK_AY_INACTIVE ; go inactive ; 2
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stx MOCK_6522_ORA1 ; put address on PA1 ; 3
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sta MOCK_6522_ORB1 ; latch_address on PB1 ; 3
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sty MOCK_6522_ORB1 ; 3
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; value
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lda AY_REGS,X ; 2
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sta MOCK_6522_ORA1 ; put value on PA1 ; 3
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lda #MOCK_AY_WRITE ; ; 2
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sta MOCK_6522_ORB1 ; write on PB1 ; 3
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sty MOCK_6522_ORB1 ; 3
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dex ; 1
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bpl ay3_write_reg_loop ; 2
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; rts
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98
demos/lovebyte2023/1k/bamps.s
Normal file
98
demos/lovebyte2023/1k/bamps.s
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@ -0,0 +1,98 @@
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; pattern 0
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; 0 -> F
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; 48-> C
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; 50-> A
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; 52-> 9
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; 54-> 8
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; 56-> 7
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; 58-> 6
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; 60-> 5
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; 62-> 4
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bamps0:
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; 0 15 30 45 48 50 52 54 56 58 60 62
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.byte $FF,$FF,$FF,$3F,$2C,$2A,$29,$28,$27,$26,$25,$24
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; pattern 1
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; 0 -> F
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; 9 -> C
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;10 -> F
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;20 -> C
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;22 -> F
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;29 -> C
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;30 -> F
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;31 -> C
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;32 -> F
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;40 -> C
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; 48-> A
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; 50-> 9
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; 52-> 8
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; 54-> 7
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; 56-> 6
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; 58-> 5
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; 60-> 4
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; 62-> 3
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bamps1:
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; 0 9 10 20 22 29 30 31 32 40 48 50 52 54 56 58 60 62
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.byte $9F,$1C,$AF,$2C,$7F,$1C,$1F,$1C,$8F,$8C,$2A,$29,$28,$27,$26,$25,$24,$23
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; pattern 2
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; 0 ->F
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; 13->C
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; 14->F
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; 15->C
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; 16->F
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; 24->C
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; 26->9
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; 28->8
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; 30->7
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; 32->F
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; 45->C
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; 46->F
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; 47->C
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; 48->F
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; 56->C
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; 58->9
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; 60->7
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; 62->6
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bamps2:
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; 0 13 14 15 16 24 26 28 30 32 45 46 47 48 56 58 60 62
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.byte $DF,$1C,$1F,$1C,$8F,$2C,$29,$28,$27,$DF,$1C,$1F,$1C,$8F,$2C,$29,$27,$26
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; pattern3
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; 0->F
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; 24->C
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; 26->9
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; 28->8
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; 30->7
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; 32->F
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; 45->C
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; 46->F
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; 47->C
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; 48->F
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; 56->C
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; 58->9
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; 60->7
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; 62->6
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bamps3:
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; 0 15 24 26 28 30 32 45 46 47 48 56 58 60 62
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.byte $FF,$9F,$2C,$29,$28,$27,$DF,$1C,$1F,$1C,$8F,$2C,$29,$27,$26
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; pattern4
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; 0->0
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; 60->F
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||||
; 61->C
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; 62->F
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; 63->C
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||||
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; needs to immediately follow bamps3 for some reason?
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||||
bamps4:
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; 0 15 30 45 60 61 62 63
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.byte $F0,$F0,$F0,$F0,$1F,$1C,$1F,$1C
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||||
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||||
.align $100
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|
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deater_string:
|
||||
|
||||
147
demos/lovebyte2023/1k/draw_letter.s
Normal file
147
demos/lovebyte2023/1k/draw_letter.s
Normal file
@ -0,0 +1,147 @@
|
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;===============================
|
||||
; draw desire letters, in order
|
||||
;===============================
|
||||
; X has color
|
||||
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||||
draw_logo:
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pha
|
||||
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jsr HCOLOR1 ; set color to X
|
||||
|
||||
ldx #5 ; draw 5 letters
|
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letter_time:
|
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lda letters_l,X ; get address
|
||||
sta INL
|
||||
|
||||
lda #>letter_d ; assume on same page
|
||||
sta INH
|
||||
|
||||
ldy letters_x,X ; get X offset
|
||||
|
||||
txa ; save X
|
||||
pha
|
||||
|
||||
jsr draw_letter
|
||||
|
||||
pla
|
||||
tax
|
||||
|
||||
dex
|
||||
bpl letter_time
|
||||
|
||||
pla
|
||||
jmp draw_apple
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
;========================
|
||||
; draw letter
|
||||
;========================
|
||||
; so inefficient
|
||||
; letter to draw in INL:INH
|
||||
; Y is X offset
|
||||
|
||||
draw_letter:
|
||||
sty LETTER_X ; store X-coord
|
||||
|
||||
lda LETTER_Y ; alternate up/down
|
||||
eor #$8
|
||||
sta LETTER_Y
|
||||
|
||||
ldy #$FF ; iterator
|
||||
letter_loop:
|
||||
|
||||
|
||||
hplot:
|
||||
; setup X value
|
||||
|
||||
iny ; skip the new-line indicator
|
||||
|
||||
jsr get_x ; get adjusted x-coord in A
|
||||
|
||||
tax ; put in X
|
||||
|
||||
; setup Y value
|
||||
|
||||
jsr get_y ; get adjusted y-coord in A
|
||||
|
||||
ldy #0 ; set top of X value (FIXME)
|
||||
|
||||
jsr HPLOT0 ; plot at (Y,X), (A)
|
||||
|
||||
ldy SAVE_Y ; restore pointer
|
||||
|
||||
iny
|
||||
|
||||
hplot_to:
|
||||
|
||||
; get X value
|
||||
|
||||
jsr get_x ; get adjusted x-coord in A
|
||||
|
||||
pha ; save for later
|
||||
|
||||
lda #0 ; wrap if > 256
|
||||
adc #0
|
||||
tax
|
||||
|
||||
; get Y value
|
||||
|
||||
jsr get_y
|
||||
|
||||
tay ; put into Y
|
||||
|
||||
pla ; restore X value
|
||||
|
||||
jsr HGLIN ; line to (X,A),(Y)
|
||||
|
||||
ldy SAVE_Y
|
||||
|
||||
iny
|
||||
|
||||
; see if at end of line or of whole thing
|
||||
|
||||
lda (INL),Y ; get next value
|
||||
|
||||
bmi letter_done ; if negative, we are done
|
||||
|
||||
cmp #$7F
|
||||
beq hplot
|
||||
bne hplot_to
|
||||
|
||||
letter_done:
|
||||
rts
|
||||
|
||||
|
||||
;================
|
||||
; get next X co-ord
|
||||
; multipy by 2
|
||||
; increment y
|
||||
get_x:
|
||||
lda (INL),Y ; get X value
|
||||
asl ; need to multiply by 2
|
||||
clc
|
||||
adc LETTER_X
|
||||
|
||||
iny
|
||||
|
||||
rts
|
||||
|
||||
;================
|
||||
; get next Y co-ord
|
||||
; increment y
|
||||
; save to SAVE_Y
|
||||
|
||||
get_y:
|
||||
sty SAVE_Y ; save Y value on stack for later
|
||||
|
||||
lda (INL),Y ; get Y value
|
||||
clc
|
||||
adc LETTER_Y
|
||||
|
||||
rts
|
||||
|
||||
|
||||
|
||||
12
demos/lovebyte2023/1k/file_id.diz
Normal file
12
demos/lovebyte2023/1k/file_id.diz
Normal file
@ -0,0 +1,12 @@
|
||||
Apple2 Desire
|
||||
-
|
||||
1k Apple II demo for Demosplash 2022
|
||||
|
||||
it's actually hard to fit a Mockingboard track this small
|
||||
also messing around with shape tables as per usual
|
||||
|
||||
by Deater / dSr
|
||||
music by mA2E
|
||||
|
||||
Note: assumes Mockingboard in Slot#4.
|
||||
Music only plays on left speaker.
|
||||
22
demos/lovebyte2023/1k/freq.s
Normal file
22
demos/lovebyte2023/1k/freq.s
Normal file
@ -0,0 +1,22 @@
|
||||
; Octave 0 : 0 0 0 3 0 3 0 3 3 0 16 0
|
||||
; Octave 1 : 45 0 0 19 0 23 0 0 0 0 5 0
|
||||
; Octave 2 : 14 0 2 6 0 8 0 0 0 0 0 0
|
||||
; Octave 3 : 0 0 0 1 0 1 0 2 0 0 2 0
|
||||
; Octave 4 : 4 0 1 5 2 5 0 7 0 2 4 0
|
||||
; Octave 5 : 3 0 4 1 5 2 0 0 0 0 0 0
|
||||
; 30 notes allocated
|
||||
;.byte 12,55,24,64,10,62,60,15,17,58,22,57,8,7,5,3,53,52,29,27,26,65,63,51,50,48,46,39,41,43,
|
||||
|
||||
frequencies_low:
|
||||
.byte $D1,$51,$E8,$30,$49,$36,$3D,$36
|
||||
.byte $DC,$44,$24,$48,$CF,$18,$B8,$6C
|
||||
.byte $5B,$60,$6E,$9B,$B3,$2D,$33,$66
|
||||
.byte $6C,$7A,$89,$CD,$B7,$A3
|
||||
|
||||
;frequencies_high:
|
||||
;.byte $03,$00,$01,$00,$04,$00,$00,$03
|
||||
;.byte $02,$00,$02,$00,$04,$05,$05,$06
|
||||
;.byte $00,$00,$01,$01,$01,$00,$00,$00
|
||||
;.byte $00,$00,$00,$00,$00,$00
|
||||
; total len=61
|
||||
|
||||
22
demos/lovebyte2023/1k/freq_h.s
Normal file
22
demos/lovebyte2023/1k/freq_h.s
Normal file
@ -0,0 +1,22 @@
|
||||
; Octave 0 : 0 0 0 3 0 3 0 3 3 0 16 0
|
||||
; Octave 1 : 45 0 0 19 0 23 0 0 0 0 5 0
|
||||
; Octave 2 : 14 0 2 6 0 8 0 0 0 0 0 0
|
||||
; Octave 3 : 0 0 0 1 0 1 0 2 0 0 2 0
|
||||
; Octave 4 : 4 0 1 5 2 5 0 7 0 2 4 0
|
||||
; Octave 5 : 3 0 4 1 5 2 0 0 0 0 0 0
|
||||
; 30 notes allocated
|
||||
;.byte 12,55,24,64,10,62,60,15,17,58,22,57,8,7,5,3,53,52,29,27,26,65,63,51,50,48,46,39,41,43,
|
||||
|
||||
;frequencies_low:
|
||||
;.byte $D1,$51,$E8,$30,$49,$36,$3D,$36
|
||||
;.byte $DC,$44,$24,$48,$CF,$18,$B8,$6C
|
||||
;.byte $5B,$60,$6E,$9B,$B3,$2D,$33,$66
|
||||
;.byte $6C,$7A,$89,$CD,$B7,$A3
|
||||
|
||||
frequencies_high:
|
||||
.byte $03,$00,$01,$00,$04,$00,$00,$03
|
||||
.byte $02,$00,$02,$00,$04,$05,$05,$06
|
||||
.byte $00,$00,$01,$01,$01,$00,$00,$00
|
||||
.byte $00,$00,$00,$00,$00,$00
|
||||
; total len=61
|
||||
|
||||
99
demos/lovebyte2023/1k/hardware.inc
Normal file
99
demos/lovebyte2023/1k/hardware.inc
Normal file
@ -0,0 +1,99 @@
|
||||
;; HARDWARE LOCATIONS
|
||||
|
||||
KEYPRESS = $C000
|
||||
KEYRESET = $C010
|
||||
|
||||
;; SOFT SWITCHES
|
||||
CLR80COL = $C000 ; PAGE0/PAGE1 normal
|
||||
SET80COL = $C001 ; PAGE0/PAGE1 switches PAGE0 in Aux instead
|
||||
EIGHTYCOLOFF = $C00C
|
||||
EIGHTYCOLON = $C00D
|
||||
SPEAKER = $C030
|
||||
SET_GR = $C050
|
||||
SET_TEXT = $C051
|
||||
FULLGR = $C052
|
||||
TEXTGR = $C053
|
||||
PAGE1 = $C054
|
||||
PAGE2 = $C055
|
||||
LORES = $C056 ; Enable LORES graphics
|
||||
HIRES = $C057 ; Enable HIRES graphics
|
||||
AN3 = $C05E ; Annunciator 3
|
||||
|
||||
PADDLE_BUTTON0 = $C061
|
||||
PADDL0 = $C064
|
||||
PTRIG = $C070
|
||||
|
||||
;; BASIC ROUTINES
|
||||
|
||||
NORMAL = $F273
|
||||
HGR = $F3E2
|
||||
HGR2 = $F3D8
|
||||
HCLR = $F3F2
|
||||
BKGND = $F3F6
|
||||
HPOSN = $F411 ; (Y,X),(A) (values stores in HGRX,XH,Y)
|
||||
HPLOT0 = $F457 ; plot at (Y,X), (A)
|
||||
HCOLOR1 = $F6F0 ; set HGR_COLOR to value in X
|
||||
HGLIN = $F53A ; line to (X,A),(Y)
|
||||
DRAW0 = $F601
|
||||
XDRAW0 = $F65D
|
||||
XDRAW1 = $F661
|
||||
|
||||
|
||||
;; MONITOR ROUTINES
|
||||
|
||||
HLINE = $F819 ;; HLINE Y,$2C at A
|
||||
VLINE = $F828 ;; VLINE A,$2D at Y
|
||||
CLRSCR = $F832 ;; Clear low-res screen
|
||||
CLRTOP = $F836 ;; clear only top of low-res screen
|
||||
SETGR = $FB40 ;; GR
|
||||
SETCOL = $F864 ;; COLOR=A
|
||||
TEXT = $FB36
|
||||
TABV = $FB5B ;; VTAB to A
|
||||
BELL = $FBDD ;; ring the bell
|
||||
BASCALC = $FBC1 ;;
|
||||
VTAB = $FC22 ;; VTAB to CV
|
||||
HOME = $FC58 ;; Clear the text screen
|
||||
WAIT = $FCA8 ;; delay 1/2(26+27A+5A^2) us
|
||||
CROUT1 = $FD8B
|
||||
SETINV = $FE80 ;; INVERSE
|
||||
SETNORM = $FE84 ;; NORMAL
|
||||
COUT = $FDED ;; output A to screen
|
||||
COUT1 = $FDF0 ;; output A to screen
|
||||
RESTORE = $FF3F
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
COLOR_BLACK = 0
|
||||
COLOR_RED = 1
|
||||
COLOR_DARKBLUE = 2
|
||||
COLOR_PURPLE = 3
|
||||
COLOR_DARKGREEN = 4
|
||||
COLOR_GREY = 5
|
||||
COLOR_MEDIUMBLUE = 6
|
||||
COLOR_LIGHTBLUE = 7
|
||||
COLOR_BROWN = 8
|
||||
COLOR_ORANGE = 9
|
||||
COLOR_GREY2 = 10
|
||||
COLOR_PINK = 11
|
||||
COLOR_LIGHTGREEN = 12
|
||||
COLOR_YELLOW = 13
|
||||
COLOR_AQUA = 14
|
||||
COLOR_WHITE = 15
|
||||
|
||||
COLOR_BOTH_BLACK = $00
|
||||
COLOR_BOTH_RED = $11
|
||||
COLOR_BOTH_DARKBLUE = $22
|
||||
COLOR_BOTH_DARKGREEN = $44
|
||||
COLOR_BOTH_GREY = $55
|
||||
COLOR_BOTH_MEDIUMBLUE = $66
|
||||
COLOR_BOTH_LIGHTBLUE = $77
|
||||
COLOR_BOTH_BROWN = $88
|
||||
COLOR_BOTH_ORANGE = $99
|
||||
COLOR_BOTH_PINK = $BB
|
||||
COLOR_BOTH_LIGHTGREEN = $CC
|
||||
COLOR_BOTH_YELLOW = $DD
|
||||
COLOR_BOTH_AQUA = $EE
|
||||
COLOR_BOTH_WHITE = $FF
|
||||
|
||||
9
demos/lovebyte2023/1k/hello.bas
Normal file
9
demos/lovebyte2023/1k/hello.bas
Normal file
@ -0,0 +1,9 @@
|
||||
5 HOME
|
||||
10 PRINT "APPLE_DESIRE -- A 1K BYTE APPLE II INTRO"
|
||||
15 PRINT " BY DEATER & MA2E / DSR"
|
||||
20 PRINT CHR$(4)"CATALOG"
|
||||
25 PRINT:PRINT "PRESS ANY KEY TO 'BRUN APPLE_DESIRE'"
|
||||
30 GET A$
|
||||
35 PRINT
|
||||
|
||||
|
||||
62
demos/lovebyte2023/1k/interrupt_handler.s
Normal file
62
demos/lovebyte2023/1k/interrupt_handler.s
Normal file
@ -0,0 +1,62 @@
|
||||
;================================
|
||||
;================================
|
||||
; mockingboard interrupt handler
|
||||
;================================
|
||||
;================================
|
||||
; On Apple II/6502 the interrupt handler jumps to address in 0xfffe
|
||||
; This is in the ROM, which saves the registers
|
||||
; on older IIe it saved A to $45 (which could mess with DISK II)
|
||||
; newer IIe doesn't do that.
|
||||
; It then calculates if it is a BRK or not (which trashes A)
|
||||
; Then it sets up the stack like an interrupt and calls 0x3fe
|
||||
|
||||
; Note: the IIc is much more complicated
|
||||
; its firmware tries to decode the proper source
|
||||
; based on various things, including screen hole values
|
||||
; we bypass that by switching out ROM and replacing the
|
||||
; $fffe vector with this, but that does mean we have
|
||||
; to be sure status flag and accumulator set properly
|
||||
|
||||
interrupt_handler:
|
||||
php ; save status flags
|
||||
cld ; clear decimal mode
|
||||
; pha ; save A ; 3
|
||||
; A is saved in $45 by firmware
|
||||
txa
|
||||
pha ; save X
|
||||
tya
|
||||
pha ; save Y
|
||||
|
||||
; inc $0404 ; debug (flashes char onscreen)
|
||||
|
||||
|
||||
ay3_irq_handler:
|
||||
bit MOCK_6522_T1CL ; clear 6522 interrupt by reading T1C-L ; 4
|
||||
|
||||
|
||||
.include "play_frame.s"
|
||||
.include "ay3_write_regs.s"
|
||||
|
||||
;=================================
|
||||
; Finally done with this interrupt
|
||||
;=================================
|
||||
|
||||
done_ay3_irq_handler:
|
||||
|
||||
pla
|
||||
tay ; restore Y
|
||||
pla
|
||||
tax ; restore X
|
||||
; pla ; restore a ; 4
|
||||
|
||||
; on II+/IIe (but not IIc) we need to do this?
|
||||
interrupt_smc:
|
||||
lda $45 ; restore A
|
||||
plp ; restore flags
|
||||
|
||||
rti ; return from interrupt ; 6
|
||||
|
||||
;============
|
||||
; typical
|
||||
; ???? cycles
|
||||
|
||||
30
demos/lovebyte2023/1k/logo_intro.s
Normal file
30
demos/lovebyte2023/1k/logo_intro.s
Normal file
@ -0,0 +1,30 @@
|
||||
;================================
|
||||
; draw the sorta vectored logo
|
||||
;================================
|
||||
; 908 bytes -- first display
|
||||
; 916 bytes -- scroll down
|
||||
; 914 bytes -- assume < 256 co-ords
|
||||
; 908 bytes -- assume first co-oord is an HPLOT
|
||||
; 906 bytes -- save value on stack rather than ZP
|
||||
; discontinuity when improving the sound code
|
||||
; 2BD bytes -- after really optimizing the draw code
|
||||
|
||||
show_logo:
|
||||
|
||||
; 101 0000
|
||||
|
||||
lda #80
|
||||
sta LETTER_Y
|
||||
ldx #$7 ; color white
|
||||
lda #1 ; apple rotation
|
||||
jsr draw_logo
|
||||
|
||||
lda #$20 ; switch HGR draw page
|
||||
sta HGR_PAGE
|
||||
|
||||
lda #88
|
||||
sta LETTER_Y
|
||||
ldx #$0 ; color black
|
||||
lda #63 ; apple rotation
|
||||
jsr draw_logo
|
||||
|
||||
448
demos/lovebyte2023/1k/mA2E_4.s
Normal file
448
demos/lovebyte2023/1k/mA2E_4.s
Normal file
@ -0,0 +1,448 @@
|
||||
|
||||
|
||||
.align $100
|
||||
|
||||
channel_a_volume:
|
||||
.byte 14,14,14,14,11,11,10,10
|
||||
|
||||
lengths:
|
||||
.byte 0*8,1*8,2*8,4*8
|
||||
|
||||
tracks_l:
|
||||
.byte <track4,<track0 ;,<track1,<track2,<track3
|
||||
|
||||
; assume all on same page
|
||||
; tracks_h:
|
||||
; .byte >track4,>track0 ;,>track1,>track2,>track3
|
||||
|
||||
bamps_l:
|
||||
.byte <bamps4,<bamps0 ;,<bamps1,<bamps2,<bamps3
|
||||
; bamps_h:
|
||||
; .byte >bamps4,>bamps0 ;,>bamps1,>bamps2,>bamps3
|
||||
|
||||
|
||||
|
||||
track0:
|
||||
|
||||
; A: 12
|
||||
; B: 55
|
||||
; A: 12
|
||||
.byte $00 ; frame=2 A=0 L=0
|
||||
.byte $0D ; frame=2 B=1 L=2
|
||||
; A: 24
|
||||
; B: 64
|
||||
.byte $04 ; frame=4 A=0 L=2
|
||||
; A: 12
|
||||
.byte $10 ; frame=6 A=2 L=0
|
||||
.byte $1D ; frame=6 B=3 L=2
|
||||
; A: 10
|
||||
; B: 62
|
||||
.byte $04 ; frame=8 A=0 L=2
|
||||
; A: 12
|
||||
; B: 60
|
||||
.byte $20 ; frame=10 A=4 L=0
|
||||
.byte $2D ; frame=10 B=5 L=2
|
||||
; A: 15
|
||||
.byte $00 ; frame=12 A=0 L=0
|
||||
.byte $35 ; frame=12 B=6 L=2
|
||||
; A: 17
|
||||
; B: 58
|
||||
.byte $3C ; frame=14 A=7 L=2
|
||||
; A: 10
|
||||
.byte $40 ; frame=16 A=8 L=0
|
||||
.byte $4D ; frame=16 B=9 L=2
|
||||
; A: 10
|
||||
.byte $24 ; frame=18 A=4 L=2
|
||||
; A: 22
|
||||
.byte $24 ; frame=20 A=4 L=2
|
||||
; A: 10
|
||||
; B: 57
|
||||
.byte $54 ; frame=22 A=10 L=2
|
||||
; A: 8
|
||||
; B: 58
|
||||
.byte $20 ; frame=24 A=4 L=0
|
||||
.byte $5D ; frame=24 B=11 L=2
|
||||
; A: 7
|
||||
; B: 57
|
||||
.byte $60 ; frame=26 A=12 L=0
|
||||
.byte $4D ; frame=26 B=9 L=2
|
||||
; A: 5
|
||||
; B: 55
|
||||
.byte $68 ; frame=28 A=13 L=0
|
||||
.byte $5D ; frame=28 B=11 L=2
|
||||
; A: 3
|
||||
; B: 53
|
||||
.byte $70 ; frame=30 A=14 L=0
|
||||
.byte $0D ; frame=30 B=1 L=2
|
||||
; A: 12
|
||||
; B: 52
|
||||
.byte $78 ; frame=32 A=15 L=0
|
||||
.byte $85 ; frame=32 B=16 L=2
|
||||
; A: 12
|
||||
.byte $00 ; frame=34 A=0 L=0
|
||||
.byte $8D ; frame=34 B=17 L=2
|
||||
; A: 24
|
||||
.byte $04 ; frame=36 A=0 L=2
|
||||
; A: 12
|
||||
; B: 55
|
||||
.byte $14 ; frame=38 A=2 L=2
|
||||
; A: 10
|
||||
.byte $00 ; frame=40 A=0 L=0
|
||||
.byte $0D ; frame=40 B=1 L=2
|
||||
; A: 12
|
||||
.byte $24 ; frame=42 A=4 L=2
|
||||
; A: 15
|
||||
.byte $04 ; frame=44 A=0 L=2
|
||||
; A: 17
|
||||
.byte $3C ; frame=46 A=7 L=2
|
||||
; A: 17
|
||||
.byte $44 ; frame=48 A=8 L=2
|
||||
; A: 17
|
||||
.byte $44 ; frame=50 A=8 L=2
|
||||
; A: 29
|
||||
.byte $44 ; frame=52 A=8 L=2
|
||||
; A: 29
|
||||
.byte $94 ; frame=54 A=18 L=2
|
||||
; A: 27
|
||||
.byte $94 ; frame=56 A=18 L=2
|
||||
; A: 26
|
||||
.byte $9C ; frame=58 A=19 L=2
|
||||
; A: 24
|
||||
.byte $A4 ; frame=60 A=20 L=2
|
||||
; A: 22
|
||||
.byte $14 ; frame=62 A=2 L=2
|
||||
; last: a=10 b=-1 len=2
|
||||
.byte $54 ; frame=64 A=10 L=2
|
||||
;.byte $ff
|
||||
track1:
|
||||
|
||||
; A: 12
|
||||
; B: 55
|
||||
; A: 12
|
||||
.byte $00 ; frame=2 A=0 L=0
|
||||
.byte $0D ; frame=2 B=1 L=2
|
||||
; A: 24
|
||||
; B: 64
|
||||
.byte $04 ; frame=4 A=0 L=2
|
||||
; A: 12
|
||||
.byte $10 ; frame=6 A=2 L=0
|
||||
.byte $1D ; frame=6 B=3 L=2
|
||||
; A: 10
|
||||
; B: 62
|
||||
.byte $04 ; frame=8 A=0 L=2
|
||||
; A: 12
|
||||
; B: 64
|
||||
.byte $20 ; frame=10 A=4 L=0
|
||||
.byte $2D ; frame=10 B=5 L=2
|
||||
; A: 15
|
||||
.byte $00 ; frame=12 A=0 L=0
|
||||
.byte $1D ; frame=12 B=3 L=2
|
||||
; A: 17
|
||||
; B: 65
|
||||
.byte $3C ; frame=14 A=7 L=2
|
||||
; A: 10
|
||||
.byte $40 ; frame=16 A=8 L=0
|
||||
.byte $AD ; frame=16 B=21 L=2
|
||||
; A: 10
|
||||
.byte $24 ; frame=18 A=4 L=2
|
||||
; A: 22
|
||||
.byte $24 ; frame=20 A=4 L=2
|
||||
; A: 10
|
||||
; B: 64
|
||||
.byte $54 ; frame=22 A=10 L=2
|
||||
; A: 8
|
||||
; B: 65
|
||||
.byte $20 ; frame=24 A=4 L=0
|
||||
.byte $1D ; frame=24 B=3 L=2
|
||||
; A: 7
|
||||
; B: 64
|
||||
.byte $60 ; frame=26 A=12 L=0
|
||||
.byte $AD ; frame=26 B=21 L=2
|
||||
; A: 5
|
||||
; B: 62
|
||||
.byte $68 ; frame=28 A=13 L=0
|
||||
.byte $1D ; frame=28 B=3 L=2
|
||||
; A: 3
|
||||
; B: 60
|
||||
.byte $70 ; frame=30 A=14 L=0
|
||||
.byte $2D ; frame=30 B=5 L=2
|
||||
; A: 12
|
||||
; B: 52
|
||||
.byte $78 ; frame=32 A=15 L=0
|
||||
.byte $35 ; frame=32 B=6 L=2
|
||||
; A: 12
|
||||
.byte $00 ; frame=34 A=0 L=0
|
||||
.byte $8D ; frame=34 B=17 L=2
|
||||
; A: 24
|
||||
.byte $04 ; frame=36 A=0 L=2
|
||||
; A: 12
|
||||
.byte $14 ; frame=38 A=2 L=2
|
||||
; A: 10
|
||||
.byte $04 ; frame=40 A=0 L=2
|
||||
; A: 12
|
||||
.byte $24 ; frame=42 A=4 L=2
|
||||
; A: 15
|
||||
.byte $04 ; frame=44 A=0 L=2
|
||||
; A: 17
|
||||
.byte $3C ; frame=46 A=7 L=2
|
||||
; A: 17
|
||||
.byte $44 ; frame=48 A=8 L=2
|
||||
; A: 17
|
||||
.byte $44 ; frame=50 A=8 L=2
|
||||
; A: 29
|
||||
.byte $44 ; frame=52 A=8 L=2
|
||||
; A: 29
|
||||
.byte $94 ; frame=54 A=18 L=2
|
||||
; A: 27
|
||||
.byte $94 ; frame=56 A=18 L=2
|
||||
; A: 26
|
||||
.byte $9C ; frame=58 A=19 L=2
|
||||
; A: 24
|
||||
.byte $A4 ; frame=60 A=20 L=2
|
||||
; A: 22
|
||||
.byte $14 ; frame=62 A=2 L=2
|
||||
; last: a=10 b=-1 len=2
|
||||
.byte $54 ; frame=64 A=10 L=2
|
||||
;.byte $ff
|
||||
track2:
|
||||
|
||||
; A: 15
|
||||
; B: 63
|
||||
; A: 15
|
||||
.byte $38 ; frame=2 A=7 L=0
|
||||
.byte $B5 ; frame=2 B=22 L=2
|
||||
; A: 27
|
||||
.byte $3C ; frame=4 A=7 L=2
|
||||
; A: 15
|
||||
.byte $9C ; frame=6 A=19 L=2
|
||||
; A: 17
|
||||
; B: 62
|
||||
.byte $3C ; frame=8 A=7 L=2
|
||||
; A: 17
|
||||
; B: 60
|
||||
.byte $40 ; frame=10 A=8 L=0
|
||||
.byte $2D ; frame=10 B=5 L=2
|
||||
; A: 29
|
||||
; B: 58
|
||||
.byte $40 ; frame=12 A=8 L=0
|
||||
.byte $35 ; frame=12 B=6 L=2
|
||||
; A: 17
|
||||
; B: 53
|
||||
.byte $90 ; frame=14 A=18 L=0
|
||||
.byte $4D ; frame=14 B=9 L=2
|
||||
; A: 12
|
||||
; B: 55
|
||||
.byte $40 ; frame=16 A=8 L=0
|
||||
.byte $85 ; frame=16 B=16 L=2
|
||||
; A: 12
|
||||
.byte $00 ; frame=18 A=0 L=0
|
||||
.byte $0D ; frame=18 B=1 L=2
|
||||
; A: 24
|
||||
.byte $04 ; frame=20 A=0 L=2
|
||||
; A: 12
|
||||
.byte $14 ; frame=22 A=2 L=2
|
||||
; A: 12
|
||||
.byte $04 ; frame=24 A=0 L=2
|
||||
; A: 12
|
||||
.byte $04 ; frame=26 A=0 L=2
|
||||
; A: 24
|
||||
.byte $04 ; frame=28 A=0 L=2
|
||||
; A: 12
|
||||
.byte $14 ; frame=30 A=2 L=2
|
||||
; A: 15
|
||||
; B: 51
|
||||
.byte $04 ; frame=32 A=0 L=2
|
||||
; A: 15
|
||||
.byte $38 ; frame=34 A=7 L=0
|
||||
.byte $BD ; frame=34 B=23 L=2
|
||||
; A: 27
|
||||
.byte $3C ; frame=36 A=7 L=2
|
||||
; A: 15
|
||||
.byte $9C ; frame=38 A=19 L=2
|
||||
; A: 17
|
||||
; B: 55
|
||||
.byte $3C ; frame=40 A=7 L=2
|
||||
; A: 17
|
||||
; B: 53
|
||||
.byte $40 ; frame=42 A=8 L=0
|
||||
.byte $0D ; frame=42 B=1 L=2
|
||||
; A: 29
|
||||
; B: 51
|
||||
.byte $40 ; frame=44 A=8 L=0
|
||||
.byte $85 ; frame=44 B=16 L=2
|
||||
; B: 50
|
||||
.byte $90 ; frame=45 A=18 L=0
|
||||
.byte $BB ; frame=45 B=23 L=1
|
||||
; A: 17
|
||||
; B: 48
|
||||
.byte $C3 ; frame=46 B=24 L=1
|
||||
; B: 46
|
||||
.byte $40 ; frame=47 A=8 L=0
|
||||
.byte $CB ; frame=47 B=25 L=1
|
||||
; A: 12
|
||||
; B: 48
|
||||
.byte $D3 ; frame=48 B=26 L=1
|
||||
; A: 10
|
||||
.byte $00 ; frame=52 A=0 L=0
|
||||
.byte $CF ; frame=52 B=25 L=3
|
||||
; A: 12
|
||||
.byte $26 ; frame=56 A=4 L=3
|
||||
; last: a=0 b=-1 len=8
|
||||
.byte $10 ; frame=64 A=0 L=8
|
||||
;.byte $ff
|
||||
track3:
|
||||
|
||||
; A: 15
|
||||
; B: 39
|
||||
; A: 15
|
||||
.byte $38 ; frame=2 A=7 L=0
|
||||
.byte $DD ; frame=2 B=27 L=2
|
||||
; A: 27
|
||||
.byte $3C ; frame=4 A=7 L=2
|
||||
; A: 15
|
||||
.byte $9C ; frame=6 A=19 L=2
|
||||
; A: 17
|
||||
; B: 41
|
||||
.byte $3C ; frame=8 A=7 L=2
|
||||
; A: 17
|
||||
; B: 43
|
||||
.byte $40 ; frame=10 A=8 L=0
|
||||
.byte $E5 ; frame=10 B=28 L=2
|
||||
; A: 29
|
||||
; B: 46
|
||||
.byte $40 ; frame=12 A=8 L=0
|
||||
.byte $ED ; frame=12 B=29 L=2
|
||||
; A: 17
|
||||
; B: 48
|
||||
.byte $90 ; frame=14 A=18 L=0
|
||||
.byte $D5 ; frame=14 B=26 L=2
|
||||
; A: 12
|
||||
; B: 43
|
||||
.byte $40 ; frame=16 A=8 L=0
|
||||
.byte $CD ; frame=16 B=25 L=2
|
||||
; A: 12
|
||||
.byte $00 ; frame=18 A=0 L=0
|
||||
.byte $ED ; frame=18 B=29 L=2
|
||||
; A: 24
|
||||
.byte $04 ; frame=20 A=0 L=2
|
||||
; A: 12
|
||||
.byte $14 ; frame=22 A=2 L=2
|
||||
; A: 12
|
||||
.byte $04 ; frame=24 A=0 L=2
|
||||
; A: 12
|
||||
.byte $04 ; frame=26 A=0 L=2
|
||||
; A: 24
|
||||
.byte $04 ; frame=28 A=0 L=2
|
||||
; A: 12
|
||||
.byte $14 ; frame=30 A=2 L=2
|
||||
; A: 15
|
||||
; B: 51
|
||||
.byte $04 ; frame=32 A=0 L=2
|
||||
; A: 15
|
||||
.byte $38 ; frame=34 A=7 L=0
|
||||
.byte $BD ; frame=34 B=23 L=2
|
||||
; A: 27
|
||||
.byte $3C ; frame=36 A=7 L=2
|
||||
; A: 15
|
||||
.byte $9C ; frame=38 A=19 L=2
|
||||
; A: 17
|
||||
; B: 48
|
||||
.byte $3C ; frame=40 A=7 L=2
|
||||
; A: 17
|
||||
; B: 51
|
||||
.byte $40 ; frame=42 A=8 L=0
|
||||
.byte $CD ; frame=42 B=25 L=2
|
||||
; A: 29
|
||||
; B: 53
|
||||
.byte $40 ; frame=44 A=8 L=0
|
||||
.byte $BD ; frame=44 B=23 L=2
|
||||
; A: 17
|
||||
; B: 58
|
||||
.byte $90 ; frame=46 A=18 L=0
|
||||
.byte $85 ; frame=46 B=16 L=2
|
||||
; A: 12
|
||||
; B: 55
|
||||
.byte $40 ; frame=48 A=8 L=0
|
||||
.byte $4D ; frame=48 B=9 L=2
|
||||
; A: 12
|
||||
.byte $00 ; frame=50 A=0 L=0
|
||||
.byte $0D ; frame=50 B=1 L=2
|
||||
; A: 24
|
||||
.byte $04 ; frame=52 A=0 L=2
|
||||
; A: 12
|
||||
.byte $14 ; frame=54 A=2 L=2
|
||||
; A: 12
|
||||
.byte $04 ; frame=56 A=0 L=2
|
||||
; A: 12
|
||||
.byte $04 ; frame=58 A=0 L=2
|
||||
; A: 24
|
||||
.byte $04 ; frame=60 A=0 L=2
|
||||
; A: 12
|
||||
.byte $14 ; frame=62 A=2 L=2
|
||||
; last: a=0 b=-1 len=2
|
||||
.byte $04 ; frame=64 A=0 L=2
|
||||
.byte $ff
|
||||
track4:
|
||||
|
||||
; A: 12
|
||||
; A: 12
|
||||
.byte $04 ; frame=2 A=0 L=2
|
||||
; A: 24
|
||||
.byte $04 ; frame=4 A=0 L=2
|
||||
; A: 12
|
||||
.byte $14 ; frame=6 A=2 L=2
|
||||
; A: 10
|
||||
.byte $04 ; frame=8 A=0 L=2
|
||||
; A: 12
|
||||
.byte $24 ; frame=10 A=4 L=2
|
||||
; A: 15
|
||||
.byte $04 ; frame=12 A=0 L=2
|
||||
; A: 17
|
||||
.byte $3C ; frame=14 A=7 L=2
|
||||
; A: 10
|
||||
.byte $44 ; frame=16 A=8 L=2
|
||||
; A: 10
|
||||
.byte $24 ; frame=18 A=4 L=2
|
||||
; A: 22
|
||||
.byte $24 ; frame=20 A=4 L=2
|
||||
; A: 10
|
||||
.byte $54 ; frame=22 A=10 L=2
|
||||
; A: 8
|
||||
.byte $24 ; frame=24 A=4 L=2
|
||||
; A: 7
|
||||
.byte $64 ; frame=26 A=12 L=2
|
||||
; A: 5
|
||||
.byte $6C ; frame=28 A=13 L=2
|
||||
; A: 3
|
||||
.byte $74 ; frame=30 A=14 L=2
|
||||
; A: 12
|
||||
.byte $7C ; frame=32 A=15 L=2
|
||||
; A: 12
|
||||
.byte $04 ; frame=34 A=0 L=2
|
||||
; A: 24
|
||||
.byte $04 ; frame=36 A=0 L=2
|
||||
; A: 12
|
||||
.byte $14 ; frame=38 A=2 L=2
|
||||
; A: 10
|
||||
.byte $04 ; frame=40 A=0 L=2
|
||||
; A: 12
|
||||
.byte $24 ; frame=42 A=4 L=2
|
||||
; A: 15
|
||||
.byte $04 ; frame=44 A=0 L=2
|
||||
; A: 17
|
||||
.byte $3C ; frame=46 A=7 L=2
|
||||
; A: 17
|
||||
.byte $44 ; frame=48 A=8 L=2
|
||||
; A: 15
|
||||
.byte $46 ; frame=52 A=8 L=3
|
||||
; A: 12
|
||||
.byte $3E ; frame=56 A=7 L=3
|
||||
; B: 51
|
||||
.byte $06 ; frame=60 A=0 L=3
|
||||
; B: 53
|
||||
.byte $BD ; frame=62 B=23 L=2
|
||||
; last: a=-1 b=16 len=2
|
||||
.byte $85 ; frame=64 B=16 L=2
|
||||
.byte $FF ; end
|
||||
|
||||
|
||||
21
demos/lovebyte2023/1k/mockingboard_constants.s
Normal file
21
demos/lovebyte2023/1k/mockingboard_constants.s
Normal file
@ -0,0 +1,21 @@
|
||||
init_addresses:
|
||||
.byte <MOCK_6522_DDRB1,<MOCK_6522_DDRA1 ; set the data direction for all pins of PortA/PortB to be output
|
||||
.byte <MOCK_6522_ACR,<MOCK_6522_IER ; Continuous interrupts, clear all interrupts
|
||||
.byte <MOCK_6522_IFR,<MOCK_6522_IER ; enable interrupt on timer overflow
|
||||
.byte <MOCK_6522_T1CL,<MOCK_6522_T1CH ; set oflow value, start counting
|
||||
.byte <MOCK_6522_ORB1,<MOCK_6522_ORB1 ; reset ay-3-8910
|
||||
|
||||
; note, terminated by the $ff below
|
||||
|
||||
init_values:
|
||||
.byte $ff,$ff ; set the data direction for all pins of PortA/PortB to be output
|
||||
.byte $40,$7f
|
||||
.byte $C0,$C0
|
||||
.byte $e7,$4f ; 50Hz
|
||||
.byte MOCK_AY_RESET,MOCK_AY_INACTIVE
|
||||
|
||||
; c7ce / 1.023e6 = .050s, 20Hz
|
||||
; 9c40 / 1.023e6 = .040s, 25Hz
|
||||
; 4fe7 / 1.023e6 = .020s, 50Hz
|
||||
; 411a / 1.023e6 = .016s, 60Hz
|
||||
|
||||
120
demos/lovebyte2023/1k/mockingboard_init.s
Normal file
120
demos/lovebyte2023/1k/mockingboard_init.s
Normal file
@ -0,0 +1,120 @@
|
||||
; Mockingboad programming:
|
||||
; + Has two 6522 I/O chips connected to two AY-3-8910 chips
|
||||
; + Optionally has some speech chips controlled via the outport on the AY
|
||||
; + Often in slot 4
|
||||
; TODO: how to auto-detect?
|
||||
; References used:
|
||||
; http://macgui.com/usenet/?group=2&id=8366
|
||||
; 6522 Data Sheet
|
||||
; AY-3-8910 Data Sheet
|
||||
|
||||
;========================
|
||||
; Mockingboard card
|
||||
; Essentially two 6522s hooked to the Apple II bus
|
||||
; Connected to AY-3-8910 chips
|
||||
; PA0-PA7 on 6522 connected to DA0-DA7 on AY
|
||||
; PB0 on 6522 connected to BC1
|
||||
; PB1 on 6522 connected to BDIR
|
||||
; PB2 on 6522 connected to RESET
|
||||
|
||||
|
||||
; left speaker
|
||||
MOCK_6522_ORB1 = $C400 ; 6522 #1 port b data
|
||||
MOCK_6522_ORA1 = $C401 ; 6522 #1 port a data
|
||||
MOCK_6522_DDRB1 = $C402 ; 6522 #1 data direction port B
|
||||
MOCK_6522_DDRA1 = $C403 ; 6522 #1 data direction port A
|
||||
MOCK_6522_T1CL = $C404 ; 6522 #1 t1 low order latches
|
||||
MOCK_6522_T1CH = $C405 ; 6522 #1 t1 high order counter
|
||||
MOCK_6522_T1LL = $C406 ; 6522 #1 t1 low order latches
|
||||
MOCK_6522_T1LH = $C407 ; 6522 #1 t1 high order latches
|
||||
MOCK_6522_T2CL = $C408 ; 6522 #1 t2 low order latches
|
||||
MOCK_6522_T2CH = $C409 ; 6522 #1 t2 high order counters
|
||||
MOCK_6522_SR = $C40A ; 6522 #1 shift register
|
||||
MOCK_6522_ACR = $C40B ; 6522 #1 auxilliary control register
|
||||
MOCK_6522_PCR = $C40C ; 6522 #1 peripheral control register
|
||||
MOCK_6522_IFR = $C40D ; 6522 #1 interrupt flag register
|
||||
MOCK_6522_IER = $C40E ; 6522 #1 interrupt enable register
|
||||
MOCK_6522_ORANH = $C40F ; 6522 #1 port a data no handshake
|
||||
|
||||
|
||||
; right speaker
|
||||
MOCK_6522_ORB2 = $C480 ; 6522 #2 port b data
|
||||
MOCK_6522_ORA2 = $C481 ; 6522 #2 port a data
|
||||
MOCK_6522_DDRB2 = $C482 ; 6522 #2 data direction port B
|
||||
MOCK_6522_DDRA2 = $C483 ; 6522 #2 data direction port A
|
||||
|
||||
; AY-3-8910 commands on port B
|
||||
; RESET BDIR BC1
|
||||
MOCK_AY_RESET = $0 ; 0 0 0
|
||||
MOCK_AY_INACTIVE = $4 ; 1 0 0
|
||||
MOCK_AY_READ = $5 ; 1 0 1
|
||||
MOCK_AY_WRITE = $6 ; 1 1 0
|
||||
MOCK_AY_LATCH_ADDR = $7 ; 1 1 1
|
||||
|
||||
|
||||
;========================
|
||||
;========================
|
||||
; Mockingboard Init
|
||||
;========================
|
||||
;========================
|
||||
; Left channel only
|
||||
|
||||
mockingboard_init:
|
||||
|
||||
;=========================
|
||||
; Initialize the 6522s
|
||||
; Reset Left AY-3-8910
|
||||
;===========================
|
||||
|
||||
; ldx #$FF
|
||||
; stx MOCK_6522_DDRB1
|
||||
; stx MOCK_6522_DDRA1
|
||||
|
||||
; inx ; #MOCK_AY_RESET $0
|
||||
; stx MOCK_6522_ORB1
|
||||
; ldx #MOCK_AY_INACTIVE ; $4
|
||||
; stx MOCK_6522_ORB1
|
||||
|
||||
|
||||
; sei ; disable interrupts, is this necessary?
|
||||
|
||||
;=========================
|
||||
; Setup Interrupt Handler
|
||||
;=========================
|
||||
|
||||
; NOTE: we don't support IIc as it's a hack
|
||||
; traditionally Mockingboard on IIc was rare
|
||||
|
||||
|
||||
|
||||
;=========================
|
||||
; Initialize the 6522s
|
||||
; Reset Left AY-3-8910
|
||||
;===========================
|
||||
|
||||
; entries=10
|
||||
; 14 + 2*entries = 34 bytes
|
||||
|
||||
; assume Y=0 on entry?
|
||||
|
||||
; ldy #0 ; 2
|
||||
init_it_loop:
|
||||
lda init_values,Y ; 3
|
||||
ldx init_addresses,Y ; 3
|
||||
bmi doneit ; 2
|
||||
iny ; 1
|
||||
sta $c400,X ; 3
|
||||
bne init_it_loop ; 2
|
||||
doneit:
|
||||
|
||||
;========================
|
||||
; set up interrupt
|
||||
; Vector address goes to 0x3fe/0x3ff
|
||||
|
||||
|
||||
lda #<interrupt_handler ; 2
|
||||
sta $03fe ; 3
|
||||
lda #>interrupt_handler ; 2
|
||||
sta $03ff ; 3
|
||||
;=========
|
||||
; 10
|
||||
161
demos/lovebyte2023/1k/play_frame.s
Normal file
161
demos/lovebyte2023/1k/play_frame.s
Normal file
@ -0,0 +1,161 @@
|
||||
play_frame:
|
||||
|
||||
|
||||
;============================
|
||||
; see if still counting down
|
||||
|
||||
lda SONG_COUNTDOWN
|
||||
bpl done_update_song
|
||||
|
||||
set_notes_loop:
|
||||
|
||||
|
||||
;==================
|
||||
; load next byte
|
||||
|
||||
; ldy SONG_OFFSET ; Y = offset into song
|
||||
track_smc:
|
||||
lda track4;,Y ; get next byte into A
|
||||
|
||||
;==================
|
||||
; see if hit end
|
||||
|
||||
cmp #$ff ; FF means we hit end
|
||||
bne not_end
|
||||
|
||||
;====================================
|
||||
; if at end, loop back to beginning
|
||||
|
||||
; ldy WHICH_TRACK ; get current track in Y
|
||||
; iny ; increment track
|
||||
|
||||
; cpy #5 ; see if off end
|
||||
; bne no_wrap
|
||||
ldy #1 ; loop to track 1
|
||||
no_wrap:
|
||||
sty WHICH_TRACK
|
||||
|
||||
lda tracks_l,Y ; self-modify track
|
||||
sta track_smc+1
|
||||
; lda tracks_h,Y ; enforce in same page
|
||||
; sta track_smc+2
|
||||
|
||||
lda bamps_l,Y ; self modify B-amplitude
|
||||
sta bamp_smc+1
|
||||
; lda bamps_h,Y ; enforce in same page
|
||||
; sta bamp_smc+2
|
||||
|
||||
; lda #0 ; reset song offset
|
||||
; sta SONG_OFFSET
|
||||
|
||||
jmp set_notes_loop ; bra ; try again in new track
|
||||
|
||||
not_end:
|
||||
|
||||
|
||||
; NNNNNEEC -- c=channel, e=end, n=note
|
||||
|
||||
pha ; save note
|
||||
|
||||
and #1
|
||||
asl
|
||||
tax ; put channel offset*2 in X
|
||||
|
||||
|
||||
pla ; restore note
|
||||
pha
|
||||
|
||||
and #$6 ; get note length
|
||||
lsr
|
||||
tay
|
||||
lda lengths,Y ; lookup in table
|
||||
sta SONG_COUNTDOWN ;
|
||||
|
||||
pla
|
||||
lsr
|
||||
lsr
|
||||
lsr ; get note in A
|
||||
|
||||
tay ; lookup in table
|
||||
|
||||
lda frequencies_high,Y ; get high frequency
|
||||
sta AY_REGS+1,X ; put in AY register
|
||||
|
||||
lda frequencies_low,Y ; get low frequency
|
||||
sta AY_REGS,X ; also put in AY register
|
||||
|
||||
|
||||
;============================
|
||||
; point to next
|
||||
|
||||
; assume less than 256 bytes
|
||||
inc track_smc+1 ; SONG_OFFSET
|
||||
|
||||
|
||||
done_update_song:
|
||||
|
||||
|
||||
;=================================
|
||||
; coundown song
|
||||
|
||||
dec SONG_COUNTDOWN ; if length was 0, means there
|
||||
; was another note starting at same
|
||||
; time, so go back and play that too
|
||||
bmi set_notes_loop
|
||||
|
||||
|
||||
|
||||
|
||||
;===============================
|
||||
;===============================
|
||||
; things that happen every frame
|
||||
;===============================
|
||||
;===============================
|
||||
|
||||
|
||||
;=================================
|
||||
; rotate through channel A volume
|
||||
|
||||
lda FRAME ; repeating 8-long pattern
|
||||
and #$7
|
||||
tay
|
||||
lda channel_a_volume,Y
|
||||
sta AY_REGS+8 ; A volume
|
||||
|
||||
|
||||
;=================================
|
||||
; handle channel B volume
|
||||
chanb:
|
||||
; lda FRAME
|
||||
; and #$7
|
||||
tya
|
||||
bne bamps_skip
|
||||
|
||||
lda BAMP_COUNTDOWN ; b-amp conutdown
|
||||
bne bamps_good
|
||||
|
||||
bamp_smc:
|
||||
lda bamps4 ; get new value
|
||||
pha
|
||||
and #$f ; bottom 4 its is ampllitude
|
||||
sta AY_REGS+9 ; B volume
|
||||
pla
|
||||
|
||||
lsr ; top 4 bits are length
|
||||
lsr
|
||||
lsr
|
||||
lsr
|
||||
sta BAMP_COUNTDOWN
|
||||
|
||||
inc bamp_smc+1 ; increment to next location
|
||||
; assumes on same page
|
||||
; and less than 256
|
||||
bamps_good:
|
||||
dec BAMP_COUNTDOWN ; countdown
|
||||
|
||||
bamps_skip:
|
||||
|
||||
;=================================
|
||||
; inc frame counter
|
||||
|
||||
inc FRAME
|
||||
15
demos/lovebyte2023/1k/tracker_init.s
Normal file
15
demos/lovebyte2023/1k/tracker_init.s
Normal file
@ -0,0 +1,15 @@
|
||||
tracker_init:
|
||||
|
||||
; setup initial ay-3-8910 values (this depends on song)
|
||||
|
||||
; claer out $70-$90
|
||||
init_registers_to_zero:
|
||||
ldx #$20 ; init registers to zero
|
||||
lda #0
|
||||
init_loop:
|
||||
sta AY_REGS,X
|
||||
dex
|
||||
bpl init_loop
|
||||
|
||||
lda #$38 ; ABC channels on
|
||||
sta AY_REGS+7 ; $07 mixer
|
||||
42
demos/lovebyte2023/1k/zp.inc
Normal file
42
demos/lovebyte2023/1k/zp.inc
Normal file
@ -0,0 +1,42 @@
|
||||
; zero page
|
||||
|
||||
; pre-defined applesoft vars
|
||||
|
||||
HGR_BITS = $1C
|
||||
|
||||
CH = $24
|
||||
CV = $25
|
||||
GBASL = $26
|
||||
GBASH = $27
|
||||
BASL = $28
|
||||
BASH = $29
|
||||
|
||||
AY_REGS = $70
|
||||
; through = $7D
|
||||
|
||||
FRAME = $80
|
||||
BAMP_COUNTDOWN = $81
|
||||
WHICH_TRACK = $82
|
||||
SONG_COUNTDOWN = $83
|
||||
|
||||
|
||||
OUR_ROT = $A5
|
||||
|
||||
HGR_X = $E0
|
||||
HGR_XH = $E1
|
||||
HGR_Y = $E2
|
||||
HGR_COLOR = $E4
|
||||
HGR_PAGE = $E6
|
||||
HGR_SCALE = $E7
|
||||
|
||||
OUTL = $F4
|
||||
OUTH = $F5
|
||||
LINE = $F6
|
||||
|
||||
SAVE_Y = $F7
|
||||
LETTER_X = $F8
|
||||
LETTER_Y = $F9
|
||||
COUNT = $FA
|
||||
INL = $FD
|
||||
INH = $FE
|
||||
TEMP = $FF
|
||||
159
demos/lovebyte2023/1k/zx02_optim.s
Normal file
159
demos/lovebyte2023/1k/zx02_optim.s
Normal file
@ -0,0 +1,159 @@
|
||||
; De-compressor for ZX02 files
|
||||
; ----------------------------
|
||||
;
|
||||
; Decompress ZX02 data (6502 optimized format), optimized for speed and size
|
||||
; 138 bytes code, 58.0 cycles/byte in test file.
|
||||
;
|
||||
; Compress with:
|
||||
; zx02 input.bin output.zx0
|
||||
;
|
||||
; (c) 2022 DMSC
|
||||
; Code under MIT license, see LICENSE file.
|
||||
|
||||
|
||||
ZP=$80
|
||||
|
||||
offset = ZP+0
|
||||
ZX0_src = ZP+2
|
||||
ZX0_dst = ZP+4
|
||||
bitr = ZP+6
|
||||
pntr = ZP+7
|
||||
|
||||
; Initial values for offset, source, destination and bitr
|
||||
;zx0_ini_block:
|
||||
; .byte $00, $00, <comp_data, >comp_data, <out_addr, >out_addr, $80
|
||||
|
||||
;--------------------------------------------------
|
||||
; Decompress ZX0 data (6502 optimized format)
|
||||
|
||||
zx02_full_decomp:
|
||||
; Get initialization block
|
||||
; ldy #7
|
||||
|
||||
;copy_init: lda zx0_ini_block-1, y
|
||||
; sta offset-1, y
|
||||
; dey
|
||||
; bne copy_init
|
||||
|
||||
|
||||
sta ZX0_dst+1 ; page to output to in A
|
||||
zx_src_l:
|
||||
ldy #$dd
|
||||
sty ZX0_src
|
||||
zx_src_h:
|
||||
ldy #$dd
|
||||
sty ZX0_src+1
|
||||
ldy #$80
|
||||
sty bitr
|
||||
ldy #0
|
||||
sty offset
|
||||
sty offset+1
|
||||
sty ZX0_dst ; always on even page
|
||||
|
||||
; Decode literal: Ccopy next N bytes from compressed file
|
||||
; Elias(length) byte[1] byte[2] ... byte[N]
|
||||
decode_literal:
|
||||
jsr get_elias
|
||||
|
||||
cop0: lda (ZX0_src), y
|
||||
inc ZX0_src
|
||||
bne plus1
|
||||
inc ZX0_src+1
|
||||
plus1: sta (ZX0_dst),y
|
||||
inc ZX0_dst
|
||||
bne plus2
|
||||
inc ZX0_dst+1
|
||||
plus2: dex
|
||||
bne cop0
|
||||
|
||||
asl bitr
|
||||
bcs dzx0s_new_offset
|
||||
|
||||
; Copy from last offset (repeat N bytes from last offset)
|
||||
; Elias(length)
|
||||
jsr get_elias
|
||||
dzx0s_copy:
|
||||
lda ZX0_dst
|
||||
sbc offset ; C=0 from get_elias
|
||||
sta pntr
|
||||
lda ZX0_dst+1
|
||||
sbc offset+1
|
||||
sta pntr+1
|
||||
|
||||
cop1:
|
||||
lda (pntr), y
|
||||
inc pntr
|
||||
bne plus3
|
||||
inc pntr+1
|
||||
plus3: sta (ZX0_dst),y
|
||||
inc ZX0_dst
|
||||
bne plus4
|
||||
inc ZX0_dst+1
|
||||
plus4: dex
|
||||
bne cop1
|
||||
|
||||
asl bitr
|
||||
bcc decode_literal
|
||||
|
||||
; Copy from new offset (repeat N bytes from new offset)
|
||||
; Elias(MSB(offset)) LSB(offset) Elias(length-1)
|
||||
dzx0s_new_offset:
|
||||
; Read elias code for high part of offset
|
||||
jsr get_elias
|
||||
beq exit ; Read a 0, signals the end
|
||||
; Decrease and divide by 2
|
||||
dex
|
||||
txa
|
||||
lsr ; @
|
||||
sta offset+1
|
||||
|
||||
; Get low part of offset, a literal 7 bits
|
||||
lda (ZX0_src), y
|
||||
inc ZX0_src
|
||||
bne plus5
|
||||
inc ZX0_src+1
|
||||
plus5:
|
||||
; Divide by 2
|
||||
ror ; @
|
||||
sta offset
|
||||
|
||||
; And get the copy length.
|
||||
; Start elias reading with the bit already in carry:
|
||||
ldx #1
|
||||
jsr elias_skip1
|
||||
|
||||
inx
|
||||
bcc dzx0s_copy
|
||||
|
||||
; Read an elias-gamma interlaced code.
|
||||
; ------------------------------------
|
||||
get_elias:
|
||||
; Initialize return value to #1
|
||||
ldx #1
|
||||
bne elias_start
|
||||
|
||||
elias_get: ; Read next data bit to result
|
||||
asl bitr
|
||||
rol ; @
|
||||
tax
|
||||
|
||||
elias_start:
|
||||
; Get one bit
|
||||
asl bitr
|
||||
bne elias_skip1
|
||||
|
||||
; Read new bit from stream
|
||||
lda (ZX0_src), y
|
||||
inc ZX0_src
|
||||
bne plus6
|
||||
inc ZX0_src+1
|
||||
plus6: ;sec ; not needed, C=1 guaranteed from last bit
|
||||
rol ;@
|
||||
sta bitr
|
||||
|
||||
elias_skip1:
|
||||
txa
|
||||
bcs elias_get
|
||||
; Got ending bit, stop reading
|
||||
exit:
|
||||
rts
|
||||
Loading…
x
Reference in New Issue
Block a user