From fb6371eec6ebfb5bad0329b829a658b460651680 Mon Sep 17 00:00:00 2001 From: Vince Weaver Date: Sun, 9 Jan 2022 23:58:37 -0500 Subject: [PATCH] d2: more work on tiny mockingboard player --- demos/l/d2/Makefile | 69 ++++++ demos/l/d2/d2.s | 56 +++++ demos/l/d2/hardware.inc | 92 ++++++++ demos/l/d2/hello.bas | 6 + demos/l/d2/interrupt_handler.s | 173 ++++++++++++++ demos/l/d2/mA2E_2.txt | 212 +++++++++++++++++ demos/l/d2/mockingboard_setup.s | 211 +++++++++++++++++ demos/l/d2/text_to_tiny.c | 396 ++++++++++++++++++++++++++++++++ demos/l/d2/zp.inc | 28 +++ 9 files changed, 1243 insertions(+) create mode 100644 demos/l/d2/Makefile create mode 100644 demos/l/d2/d2.s create mode 100644 demos/l/d2/hardware.inc create mode 100644 demos/l/d2/hello.bas create mode 100644 demos/l/d2/interrupt_handler.s create mode 100644 demos/l/d2/mA2E_2.txt create mode 100644 demos/l/d2/mockingboard_setup.s create mode 100644 demos/l/d2/text_to_tiny.c create mode 100644 demos/l/d2/zp.inc diff --git a/demos/l/d2/Makefile b/demos/l/d2/Makefile new file mode 100644 index 00000000..d1d265a6 --- /dev/null +++ b/demos/l/d2/Makefile @@ -0,0 +1,69 @@ +include ../../../Makefile.inc + +DOS33 = ../../../utils/dos33fs-utils/dos33 +EMPTY_DISK = ../../../empty_disk +HGR2PNG = ../../../utils/hgr-utils/png2hgr +LINKER_SCRIPTS = ../../../linker_scripts +TOKENIZE = ../../../utils/asoft_basic-utils/tokenize_asoft + +all: hgr_d2.dsk text_to_tiny + +submit: hgr_d2_1k.zip + +#### + +hgr_d2_1k.zip: D2 d2.s file_id.diz hgr_d2.dsk + mkdir -p demosplash2021_hgr_d2_1k + cp D2 ./demosplash2021_hgr_d2_1k + cp *.s ./demosplash2021_hgr_d2_1k + cp file_id.diz ./demosplash2021_hgr_d2_1k + cp hgr_d2.dsk ./demosplash2021_hgr_d2_1k + cp hgr_d2.webm ./demosplash2021_hgr_d2_1k + zip -r hgr_d2_1k.zip demosplash2021_hgr_d2_1k + +#### + +hgr_d2.dsk: HELLO D2 + cp $(EMPTY_DISK)/empty.dsk ./hgr_d2.dsk + $(DOS33) -y hgr_d2.dsk SAVE A HELLO + $(DOS33) -y hgr_d2.dsk -t BIN -a 0x6000 BSAVE D2 + +#### + +HELLO: hello.bas + $(TOKENIZE) < hello.bas > HELLO + +#### + +peasant_music.s: peasant.txt text_to_tiny + ./text_to_tiny peasant.txt > peasant_music.s + +#### + +mA2E_2.s: mA2E_2.txt text_to_tiny + ./text_to_tiny mA2E_2.txt > mA2E_2.s + + +#### + +D2: d2.o + ld65 -o D2 d2.o -C $(LINKER_SCRIPTS)/apple2_6000.inc + +d2.o: d2.s \ + zp.inc hardware.inc \ + mA2E_2.s \ + interrupt_handler.s mockingboard_setup.s + ca65 -o d2.o d2.s -l d2.lst + +#### + +text_to_tiny: text_to_tiny.o + $(CC) -o text_to_tiny text_to_tiny.o -lm + +text_to_tiny.o: text_to_tiny.c + $(CC) $(CFLAGS) -c text_to_tiny.c + +#### + +clean: + rm -f *~ *.o *.lst D2 HELLO text_to_tiny mA2E_2.s diff --git a/demos/l/d2/d2.s b/demos/l/d2/d2.s new file mode 100644 index 00000000..bc5b77c7 --- /dev/null +++ b/demos/l/d2/d2.s @@ -0,0 +1,56 @@ +; Apple II graphics/music in 1k + +; by deater (Vince Weaver) + +; Zero Page + .include "zp.inc" + .include "hardware.inc" + +; 466 bytes -- original from D2 demo +; 436 bytes -- left channel only +; 427 bytes -- optimize init a bit + +d2: + + ;=================== + ; music Player Setup + + + lda #peasant_song + sta SONG_H + + ; assume mockingboard in slot#4 + + ; TODO: inline? + + jsr mockingboard_init + + cli + +bob: + jmp bob + + + + ;================ + ; halt music + ; stop playing + ; turn off sound +its_over: + sei + lda #$3f + ldx #7 + jsr ay3_write_reg + +stuck_forever: + bne stuck_forever + + + +; music +.include "mA2E_2.s" +.include "interrupt_handler.s" +; must be last +.include "mockingboard_setup.s" diff --git a/demos/l/d2/hardware.inc b/demos/l/d2/hardware.inc new file mode 100644 index 00000000..e68b75fd --- /dev/null +++ b/demos/l/d2/hardware.inc @@ -0,0 +1,92 @@ +;; 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 +HGR2 = $F3D8 +HCLR = $F3F2 +HPOSN = $F411 ; (Y,X),(A) (values stores in HGRX,XH,Y) +XDRAW0 = $F65D + + +;; 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 + + + + + + +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 = $FF + diff --git a/demos/l/d2/hello.bas b/demos/l/d2/hello.bas new file mode 100644 index 00000000..52c966ed --- /dev/null +++ b/demos/l/d2/hello.bas @@ -0,0 +1,6 @@ +5 HOME +10 PRINT "HGR DEMO2 - 1K DEMO AT DEMOSPLASH 2021" +20 PRINT CHR$(4);"CATALOG" +25 PRINT:PRINT "AUTOMATICALLY STARTING" +30 PRINT "]BRUN D2" +40 PRINT CHR$(4);"BRUN D2" diff --git a/demos/l/d2/interrupt_handler.s b/demos/l/d2/interrupt_handler.s new file mode 100644 index 00000000..8158f9c5 --- /dev/null +++ b/demos/l/d2/interrupt_handler.s @@ -0,0 +1,173 @@ + ;================================ + ;================================ + ; 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 $0404 ; debug (flashes char onscreen) + + +ay3_irq_handler: + bit MOCK_6522_T1CL ; clear 6522 interrupt by reading T1C-L ; 4 + + ; see if still counting down + lda SONG_COUNTDOWN + bpl done_update_song + +try_again: + ldy SONG_OFFSET +set_notes_loop: + + ; see if hit end + lda (SONG_L),Y + cmp #$C0 + bne all_ok + + ; if at end, loop + +loop_forever: +; jmp loop_forever + + lda #0 + sta SONG_OFFSET + +; lda #peasant_song +; sta SONG_H + + + beq try_again ; bra +all_ok: + + ; see if note + + tax + and #$C0 + cmp #$C0 + beq handle_timing + +note_only: + txa + ; CCOONNNN -- c=channel, o=octave, n=note + ; TODO: OONNNNCC instead? + + lsr + lsr + lsr + lsr + sta octave_smc+1 + lsr + and #$FE + sta out_smc+1 + + txa + + and #$3F + + tax + lda frequency_lookup_low,X + sty y_smc+1 +out_smc: + ldx #$00 + jsr ay3_write_reg ; trashes A/Y + + ; set coarse note A + ; hack: if octave=0 (C2) then coarse=1 + ; else coarse=0 + + inx +octave_smc: + lda #$dd + and #$3 ; if 0 then 1 + ; if 1,2,3 then 0 + bne blah0 +blah1: + lda #1 + bne blah_blah +blah0: + lda #0 +blah_blah: + + jsr ay3_write_reg ; trashes A/Y + +y_smc: + ldy #0 + iny + +; bne not_wrap2 ; assume less than 256 bytes +; inc SONG_H +;not_wrap2: + bne set_notes_loop ; bra + +handle_timing: + ; was timing + + txa + + and #$3f + sta SONG_COUNTDOWN + iny + sty SONG_OFFSET + bne not_wrap1 + + inc SONG_H + +not_wrap1: + +done_update_song: + dec SONG_COUNTDOWN + + + ;================================= + ; 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 + + + + + + + diff --git a/demos/l/d2/mA2E_2.txt b/demos/l/d2/mA2E_2.txt new file mode 100644 index 00000000..d3a5eb5a --- /dev/null +++ b/demos/l/d2/mA2E_2.txt @@ -0,0 +1,212 @@ +'' TITLE: Mockingboard Tune 2 - 2021 +' AUTHOR: mA2E / dSr +' COMMENTS: +' +' LOOP: 640 +' +' BPM: 250 +' TEMPO: 6 +' FREQ: 1000000 +' IRQ: 50 +' +' LYRICS: 0 +' +' ENDHEADER +------- +' 0 +0 F 3-- C 5-- C 4-- +1 ----- ----- ----- +2 ----- ----- ----- +3 ----- ----- ----- +4 ----- ----- F 4-- +5 ----- ----- ----- +6 ----- ----- ----- +7 ----- ----- ----- +8 F 4-- F 5-- G 4-- +9 ----- ----- ----- +A ----- ----- ----- +B ----- ----- ----- +C ----- ----- G#4-- +D ----- ----- ----- +E ----- ----- ----- +F ----- ----- ----- +10 F 3-- G 5-- C 4-- +11 ----- ----- ----- +12 ----- ----- ----- +13 ----- ----- ----- +14 ----- ----- F 4-- +15 ----- ----- ----- +16 ----- ----- ----- +17 ----- ----- ----- +18 F 4-- G#5-- G 4-- +19 ----- ----- ----- +1A ----- ----- ----- +1B ----- ----- ----- +1C ----- ----- G#4-- +1D ----- ----- ----- +1E ----- ----- ----- +1F ----- ----- ----- +20 F 3-- G 5-- C 4-- +21 ----- ----- ----- +22 ----- ----- ----- +23 ----- ----- ----- +24 ----- ----- F 4-- +25 ----- ----- ----- +26 ----- ----- ----- +27 ----- ----- ----- +28 F 4-- G#5-- G 4-- +29 ----- ----- ----- +2A ----- ----- ----- +2B ----- ----- ----- +2C ----- ----- G#4-- +2D ----- ----- ----- +2E ----- ----- ----- +2F ----- ----- ----- +30 F 3-- C 6-- C 4-- +31 ----- ----- ----- +32 ----- ----- ----- +33 ----- ----- ----- +34 ----- ----- F 4-- +35 ----- ----- ----- +36 ----- ----- ----- +37 ----- ----- ----- +38 F 4-- ----- G 4-- +39 ----- ----- ----- +3A ----- ----- ----- +3B ----- ----- ----- +3C ----- ----- G#4-- +3D ----- ----- ----- +3E ----- ----- ----- +3F ----- ----- ----- +' 1 +0 D#3-- A#5-- D#4-- +1 ----- ----- ----- +2 ----- ----- ----- +3 ----- ----- ----- +4 ----- ----- G 4-- +5 ----- ----- ----- +6 ----- ----- ----- +7 ----- ----- ----- +8 D#4-- G#5-- G#4-- +9 ----- ----- ----- +A ----- ----- ----- +B ----- ----- ----- +C ----- ----- A#4-- +D ----- ----- ----- +E ----- ----- ----- +F ----- ----- ----- +10 D#3-- G 5-- D#4-- +11 ----- ----- ----- +12 ----- ----- ----- +13 ----- ----- ----- +14 ----- ----- G 4-- +15 ----- ----- ----- +16 ----- ----- ----- +17 ----- ----- ----- +18 D#4-- F 5-- G#4-- +19 ----- ----- ----- +1A ----- ----- ----- +1B ----- ----- ----- +1C ----- ----- A#4-- +1D ----- ----- ----- +1E ----- ----- ----- +1F ----- ----- ----- +20 D#3-- G 5-- D#4-- +21 ----- ----- ----- +22 ----- ----- ----- +23 ----- ----- ----- +24 ----- ----- G 4-- +25 ----- ----- ----- +26 ----- ----- ----- +27 ----- ----- ----- +28 D#4-- G#5-- G#4-- +29 ----- ----- ----- +2A ----- ----- ----- +2B ----- ----- ----- +2C ----- ----- A#4-- +2D ----- ----- ----- +2E ----- ----- ----- +2F ----- ----- ----- +30 D#3-- G 5-- D#4-- +31 ----- ----- ----- +32 ----- ----- ----- +33 ----- ----- ----- +34 ----- ----- G 4-- +35 ----- ----- ----- +36 ----- ----- ----- +37 ----- ----- ----- +38 D#4-- ----- G#4-- +39 ----- ----- ----- +3A ----- ----- ----- +3B ----- ----- ----- +3C ----- ----- A#4-- +3D ----- ----- ----- +3E ----- ----- ----- +3F ----- ----- ----- +' 2 +0 C#3-- G 5-- C#4-- +1 ----- ----- ----- +2 ----- ----- ----- +3 ----- ----- ----- +4 ----- ----- F 4-- +5 ----- ----- ----- +6 ----- ----- ----- +7 ----- ----- ----- +8 C#4-- ----- G 4-- +9 ----- ----- ----- +A ----- ----- ----- +B ----- ----- ----- +C ----- ----- G#4-- +D ----- ----- ----- +E ----- ----- ----- +F ----- ----- ----- +10 C#3-- G#5-- C#4-- +11 ----- ----- ----- +12 ----- ----- ----- +13 ----- ----- ----- +14 ----- ----- F 4-- +15 ----- ----- ----- +16 ----- ----- ----- +17 ----- ----- ----- +18 C#4-- F 5-- G 4-- +19 ----- ----- ----- +1A ----- ----- ----- +1B ----- ----- ----- +1C ----- ----- G#4-- +1D ----- ----- ----- +1E ----- ----- ----- +1F ----- ----- ----- +20 C#3-- ----- C#4-- +21 ----- ----- ----- +22 ----- ----- ----- +23 ----- ----- ----- +24 ----- ----- F 4-- +25 ----- ----- ----- +26 ----- ----- ----- +27 ----- ----- ----- +28 C#4-- ----- G 4-- +29 ----- ----- ----- +2A ----- ----- ----- +2B ----- ----- ----- +2C ----- ----- G#4-- +2D ----- ----- ----- +2E ----- ----- ----- +2F ----- ----- ----- +30 C#3-- ----- C#4-- +31 ----- ----- ----- +32 ----- ----- ----- +33 ----- ----- ----- +34 ----- ----- F 4-- +35 ----- ----- ----- +36 ----- ----- ----- +37 ----- ----- ----- +38 C#4-- ----- G 4-- +39 ----- ----- ----- +3A ----- ----- ----- +3B ----- ----- ----- +3C ----- ----- A#4-- +3D ----- ----- ----- +3E ----- ----- ----- +3F ----- ----- ----- + + diff --git a/demos/l/d2/mockingboard_setup.s b/demos/l/d2/mockingboard_setup.s new file mode 100644 index 00000000..43a87998 --- /dev/null +++ b/demos/l/d2/mockingboard_setup.s @@ -0,0 +1,211 @@ +; 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: + + 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 + + ;======================== + ; set up interrupt + ; Vector address goes to 0x3fe/0x3ff + + lda #interrupt_handler + sta $03ff + + + + ;========================= + ; Initialize the 6522s + ; Reset Left AY-3-8910 + ;=========================== + + ; entries=10 + ; 14 + 2*entries = 34 bytes + ; to beat = 46 bytes + + ldy #0 +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: + + + +init_registers: + + ; init song data + + lda #0 + sta SONG_OFFSET + sta SONG_COUNTDOWN + + ; read 14 bytes from beginning of song to init + + ldx #13 +init_loop: +init_smc: + txa + tay + lda (SONG_L),Y + jsr ay3_write_reg ; trashes Y + dex + bne init_loop + + ; update SONG_L to point past the init + lda SONG_L + clc + adc #14 + sta SONG_L + bcc no_oflo + inc SONG_H +no_oflo: + + ; create Frequency Table + ldx #11 +make_freq_loop: + sec + lda frequency_lookup_low,X + ror + sta frequency_lookup_low+16,X + lsr + sta frequency_lookup_low+32,X + lsr + sta frequency_lookup_low+48,X + + dex + bpl make_freq_loop + + inx + stx frequency_lookup_low+28 + + rts + + + ;===================== + ;===================== + ;===================== + ; ay3 write reg + ;===================== + ;===================== + ;===================== + ; writes to one chip + ; address in X + ; data in A + +ay3_write_reg: + pha + lda #MOCK_AY_LATCH_ADDR ; latch_address for PB1 ; 2 + ldy #MOCK_AY_INACTIVE ; go inactive ; 2 + + stx MOCK_6522_ORA1 ; put address on PA1 ; 4 + sta MOCK_6522_ORB1 ; latch_address on PB1 ; 4 + sty MOCK_6522_ORB1 ; 4 + + pla + + ; value + sta MOCK_6522_ORA1 ; put value on PA1 ; 4 + lda #MOCK_AY_WRITE ; ; 2 + sta MOCK_6522_ORB1 ; write on PB1 ; 4 + sty MOCK_6522_ORB1 ; 4 + + rts + + +; starts at C4 +frequency_lookup_low: +.byte $E8,$CD,$B3,$9B,$83,$6E,$59,$46,$33,$22,$12,$02 + +;$1E8,$1CD,$1B3,$19B,$183,$16E,$159,$146,$133,$122,$112,$102, +;.byte $F4,$E6,$D9,$CD,$C1,$B7,$AC,$A3,$99,$91,$89,$81,$00,$00,$00,$00 +;.byte $7A,$73,$6C,$66,$60,$5B,$56,$51,$4C,$48,$44,$40,$00,$00,$00,$00 +;.byte $3D,$39,$36,$33,$30,$2D,$2B,$28,$26,$24,$22,$20,$00,$00,$00,$00 + + +init_addresses: + .byte +#include +#include +#include +#include + +#include +#include +#include +#include + +static int octave_adjust=0; + +static int notes_used[64]; + +// CCOONNNN -- c=channel, o=octave, n=note + +int note_to_ed(char note, int flat, int sharp, int octave) { + + int offset; + + switch(note) { + case 'C': offset=0; break; + case 'D': offset=2; break; + case 'E': offset=4; break; + case 'F': offset=5; break; + case 'G': offset=7; break; + case 'A': offset=9; break; + case 'B': offset=11; break; + + case 'R': offset=12; flat=0; sharp=0; octave=3; break; + + default: + fprintf(stderr,"Unknown note %c\n",note); + return -1; + } + if (flat==1) offset--; + if (sharp==1) offset++; + if (sharp==2) offset+=2; + + + offset=((((octave+octave_adjust)-3)&0x3)<<4)|offset; + + return offset; +} + + + +static int debug=0; + +static int line=0; + +static int header_version=0; + + +struct note_type { + unsigned char which; + unsigned char note; + int sharp,flat; + int octave; + int len; + int enabled; + int freq; + int length; + int left; + int ed_freq; +}; + + + +static int get_note(char *string, int sp, struct note_type *n, int line) { + + int freq; + int ch; + +// fprintf(stderr,"VMW: Entering, sp=%d\n",sp); + + /* Skip white space */ + while((string[sp]==' ' || string[sp]=='\t')) sp++; + + if (string[sp]=='\n') return -1; + + /* return early if no change */ + ch=string[sp]; + +// fprintf(stderr,"VMW: %d %d\n",ch,sp); + + if (ch=='-') { + if (header_version==0) return sp+6; + else { + return sp+11; + } + } + + /* get note info */ + n->sharp=0; + n->flat=0; + n->ed_freq=-1; + n->note=ch; + sp++; + if (string[sp]==' ') ; + else if (string[sp]=='#') n->sharp=1; + else if (string[sp]=='-') n->flat=1; + else if (string[sp]=='=') n->flat=2; + else { + fprintf(stderr,"Unknown note modifier %c, line %d:%d\n", + string[sp],line,sp); + fprintf(stderr,"String: %s\n",string); + } +// printf("Sharp=%d Flat=%d\n",n->sharp,n->flat); + sp++; + n->octave=string[sp]-'0'; + sp++; + sp++; + n->len=string[sp]-'0'; + sp++; + + + if (n->note!='-') { + + freq=note_to_ed(n->note,n->flat,n->sharp, + n->octave); + + n->enabled=1; + n->length=0; + n->ed_freq=freq; + } + + if (header_version==2) sp+=6; + + return sp; +} + +static int get_string(char *string, char *key, char *output, int strip_linefeed) { + + char *found; + + found=strstr(string,key); + found=found+strlen(key); + + /* get rid of leading whitespace */ + while(1) { + if ((*found==' ') || (*found=='\t')) found++; + else break; + } + + strcpy(output,found); + + /* remove trailing linefeed */ + if (strip_linefeed) output[strlen(output)-1]=0; + + return 0; + +} + +static void print_help(int just_version, char *exec_name) { + + printf("\ntext_to_ed version %s by Vince Weaver \n\n",VERSION); + if (just_version) exit(0); + + printf("This created Electric Duet files\n\n"); + + printf("Usage:\n"); + printf("\t%s [-h] [-v] [-d] [-o X] [-i X] textfile outbase\n\n", + exec_name); + printf("\t-h: this help message\n"); + printf("\t-v: version info\n"); + printf("\t-d: print debug messages\n"); + printf("\t-o: Offset octave by X\n"); + printf("\t-i: set second instrument to X\n"); + + exit(0); +} + + +int main(int argc, char **argv) { + + char string[BUFSIZ]; + char *result; + char *in_filename; + char temp[BUFSIZ]; + FILE *in_file=NULL; + //int attributes=0; + int loop=0; + int sp,external_frequency,irq; + struct note_type a,b,c; + int copt; + + char song_name[BUFSIZ]; + char author_name[BUFSIZ]; + char comments[BUFSIZ]; + char *comments_ptr=comments; + + unsigned char sharp_char[]=" #-="; + + /* Parse command line arguments */ + while ((copt = getopt(argc, argv, "dhvo:i:"))!=-1) { + switch (copt) { + case 'd': + /* Debug messages */ + printf("Debug enabled\n"); + debug=1; + break; + case 'h': + /* help */ + print_help(0,argv[0]); + break; + case 'v': + /* version */ + print_help(1,argv[0]); + break; + case 'o': + /* octave offset */ + octave_adjust=atoi(optarg); + break; + default: + print_help(0,argv[0]); + break; + } + } + + if (argv[optind]!=NULL) { + /* Open the input file */ + if (argv[optind][0]=='-') { + in_file=stdin; + } + else { + in_filename=strdup(argv[optind]); + in_file=fopen(in_filename,"r"); + if (in_file==NULL) { + fprintf(stderr,"Couldn't open %s\n",in_filename); + return -1; + } + } + } + + + /* Get the info for the header */ + + while(1) { + result=fgets(string,BUFSIZ,in_file); + if (result==NULL) break; + line++; + if (strstr(string,"ENDHEADER")) break; + if (strstr(string,"HEADER:")) { + get_string(string,"HEADER:",temp,1); + header_version=atoi(temp); + printf("Found header version %d\n",header_version); + } + if (strstr(string,"TITLE:")) { + get_string(string,"TITLE:",song_name,1); + } + if (strstr(string,"AUTHOR:")) { + get_string(string,"AUTHOR:",author_name,1); + } + if (strstr(string,"COMMENTS:")) { + get_string(string,"COMMENTS:",comments_ptr,0); + comments_ptr=&comments[strlen(comments)]; + } + + if (strstr(string,"FREQ:")) { + get_string(string,"FREQ:",temp,1); + external_frequency=atoi(temp); + } + if (strstr(string,"IRQ:")) { + get_string(string,"IRQ:",temp,1); + irq=atoi(temp); + } + if (strstr(string,"LOOP:")) { + get_string(string,"LOOP:",temp,1); + loop=atoi(temp); + } + + } + + a.which='A'; b.which='B'; c.which='C'; + + + // algorithm + // get A,B,C + + +// int first=1; +// int a_last=0,b_last=0,same_count=0; +// int a_len=0,b_len=0,a_freq=0,b_freq=0; + int current_length=0; + int first=1; + +printf("peasant_song:\n"); +printf("; register init\n"); +printf("\t.byte $00,$00,$00,$00,$00,$00 ; $00: A/B/C fine/coarse\n"); +printf("\t.byte $00 ; $06\n"); +printf("\t.byte $38 ; $07 mixer (ABC on)\n"); +printf("\t.byte $0E,$0C,$0C ; $08 volume A/B/C\n"); +printf("\t.byte $00,$00,$00,$00 ; $09\n"); +printf("\n"); + + while(1) { + result=fgets(string,BUFSIZ,in_file); + if (result==NULL) break; + line++; + + a.ed_freq=-1; + b.ed_freq=-1; + c.ed_freq=-1; + a.length=0; + b.length=0; + c.length=0; + + /* skip comments */ + if (string[0]=='\'') continue; + if (string[0]=='-') continue; + if (string[0]=='*') continue; + + sp=0; + + /* Skip line number */ + while((string[sp]!=' ' && string[sp]!='\t')) sp++; + + sp=get_note(string,sp,&a,line); + if (sp!=-1) sp=get_note(string,sp,&b,line); + if (sp!=-1) sp=get_note(string,sp,&c,line); + + if (a.ed_freq>=0) { + notes_used[a.ed_freq]++; + fprintf(stderr,"A: %d\n",a.ed_freq); + } + if (b.ed_freq>=0) { + notes_used[b.ed_freq]++; + fprintf(stderr,"B: %d\n",b.ed_freq); + } + if (c.ed_freq>=0) { + notes_used[c.ed_freq]++; + fprintf(stderr,"C: %d\n",c.ed_freq); + } + + if ((a.ed_freq>=0)||(b.ed_freq>=0)||(c.ed_freq>=0)) { + if (!first) { + printf("\t.byte $%02X ; L = %d\n", + current_length|0xc0,current_length); + printf("\n"); + current_length=0; + } + + first=0; + + } + + + if (a.ed_freq>=0) { + printf("\t.byte $%02X ; A = %c%c%d\n", + a.ed_freq, + a.note,sharp_char[a.sharp+2*a.flat], + a.octave); + } + if (b.ed_freq>=0) { + printf("\t.byte $%02X ; B = %c%c%d\n", + b.ed_freq|0x40, + b.note,sharp_char[b.sharp+2*b.flat], + b.octave); + } + if (c.ed_freq>=0) { + printf("\t.byte $%02X ; C = %c%c%d\n", + c.ed_freq|0x80, + c.note,sharp_char[c.sharp+2*c.flat], + c.octave); + } + + current_length++; + + + } + + printf("\t.byte $C0 ; end\n"); + + int o,n; + + for(o=0;o<4;o++) { + printf("; Octave %d : ",o); + for(n=0;n<12;n++) { + printf("%d ",notes_used[(o*12)+n]); + } + printf("\n"); + } + + (void) irq; + (void) loop; + (void) external_frequency; + + return 0; +} + diff --git a/demos/l/d2/zp.inc b/demos/l/d2/zp.inc new file mode 100644 index 00000000..57a4ad60 --- /dev/null +++ b/demos/l/d2/zp.inc @@ -0,0 +1,28 @@ +; zero page + +; pre-defined applesoft vars + +CH = $24 +CV = $25 +GBASL = $26 +GBASH = $27 +BASL = $28 +BASH = $29 + +SONG_L = $70 +SONG_H = $71 +SONG_OFFSET = $72 +SONG_COUNTDOWN = $73 + +OUR_ROT = $A5 + +HGR_X = $E0 +HGR_XH = $E1 +HGR_Y = $E2 +HGR_COLOR = $E4 +HGR_PAGE = $E6 +HGR_SCALE = $E7 + +COUNT = $FB +FRAME = $FC +