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vox_test.asm
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;
; vox_test.asm
;
;
; By Alex Herbert, 2004
;
processor 6502
; TIA Registers (Write)
VSYNC equ $00
VBLANK equ $01
WSYNC equ $02
RSYNC equ $03
NUSIZ0 equ $04
NUSIZ1 equ $05
COLUP0 equ $06
COLUP1 equ $07
COLUPF equ $08
COLUBK equ $09
CTRLPF equ $0a
REFP0 equ $0b
REFP1 equ $0c
PF0 equ $0d
PF1 equ $0e
PF2 equ $0f
RESP0 equ $10
RESP1 equ $11
RESM0 equ $12
RESM1 equ $13
RESBL equ $14
AUDC0 equ $15
AUDC1 equ $16
AUDF0 equ $17
AUDF1 equ $18
AUDV0 equ $19
AUDV1 equ $1a
GRP0 equ $1b
GRP1 equ $1c
ENAM0 equ $1d
ENAM1 equ $1e
ENABL equ $1f
HMP0 equ $20
HMP1 equ $21
HMM0 equ $22
HMM1 equ $23
HMBL equ $24
VDELP0 equ $25
VDELP1 equ $26
VDELBL equ $27
RESMP0 equ $28
RESMP1 equ $29
HMOVE equ $2a
HMCLR equ $2b
CXCLR equ $2c
; TIA Registers (Read)
CXM0P equ $00
CXM1P equ $01
CXP0FB equ $02
CXP1FB equ $03
CXM0FB equ $04
CXM1FB equ $05
CXBLPF equ $06
CXPPMM equ $07
INPT0 equ $08
INPT1 equ $09
INPT2 equ $0a
INPT3 equ $0b
INPT4 equ $0c
INPT5 equ $0d
; RIOT Registers
SWCHA equ $0280
SWACNT equ $0281
SWCHB equ $0282
SWBCNT equ $0283
INTIM equ $0284
TIMINT equ $0285
TIM1T equ $0294
TIM8T equ $0295
TIM64T equ $0296
T1024T equ $0297
; Speakjet Driver
include "speakjet.inc"
; Macros
mac WAIT_TIMINT
.1 bit TIMINT
bpl .1
sta WSYNC
endm
mac WAIT_HBLS
ldx {1}
.1 dex
sta WSYNC
bne .1
endm
; Variables
seg.u bss
org $0080
frame ds 1
temp ds 1
switch_states ds 1
switch_edges ds 1
speech_addr ds 2
; Code/Data
seg code
org $f000,$ff
; Speech Data
fire_speech
dc.b 31,253
dc.b $ff
up_speech
dc.b 31,191,131,8,187,191,129,143,2,2
dc.b 191,131,8,187,191,129,143,2,2
dc.b 147,14,136,8,141,8,191,162,8,190,148,8,128,31
dc.b $ff
down_speech
dc.b 31,22,110,23,1,215,6
dc.b 174,154,7,141,7,165,7,151,6,215,6
dc.b 174,154,7,141,7,165,7,151,6,215,6
dc.b 174,154,7,141,7,165,7,151,31
dc.b $ff
left_speech
dc.b 31,21,116,23,4,22,55,182,129,194,131,141
dc.b 2,2,8,186,7,155,4,191,6,145,7,136,7,155,196,6
dc.b 154,128,6,148,7,137,7,164,18,171,136,191,31
dc.b $ff
right_speech
dc.b 31,21,127,170,128,174,128,170,128,174,128
dc.b 170,128,174,128,170,128,174,128,170,128,174,128,31
dc.b $ff
silence_speech
dc.b 31
dc.b $ff
; Boot Code
boot
sei
cld
ldx #$ff
txs
inx
txa
boot_loop
pha
dex
bne boot_loop
SPEAK silence_speech
; Display Loop
vertical_sync
lda #$02
sta WSYNC
sta VSYNC
ldx #$ff
txs
inc frame
sta WSYNC
lda #(36*76)>>6
sta WSYNC
sta TIM64T
lda #$00
sta WSYNC
sta VSYNC
vblank_start
jsr read_switches
jsr speech_select
lda #$03
sta WSYNC
sta NUSIZ0 ; 3
sta NUSIZ1 ; 3 6
ldx #$01 ; 2 8
stx VDELP0 ; 3 11
stx VDELP1 ; 3 14
stx CTRLPF ; 3 17
dex ; 2 19
stx GRP0 ; 3 22
stx GRP1 ; 3 25
stx GRP0 ; 3 28
lda #$40 ; 2 30
sta HMP0 ; 3 33
lda #$50 ; 2 35
sta HMP1 ; 3 37
sta RESP0 ; 3 40
sta RESP1 ; 3 43
lda #$04
sta COLUBK
lda #$28
sta COLUP0
sta COLUP1
sta WSYNC
sta HMOVE
WAIT_TIMINT
display_start
lda #$00
sta WSYNC
sta VBLANK
lda #(191*76)>>6
sta TIM64T
WAIT_HBLS #$40
lda #$fe
sta WSYNC
sta PF2
sta WSYNC
sta WSYNC
sta WSYNC
ldx #$10
title_loop
dex
sta WSYNC
lda title_sprite0,x ; 4
sta GRP0 ; 3
lda title_sprite1,x ; 4
sta GRP1 ; 3
lda title_sprite2,x ; 4
sta GRP0 ; 3 21
ldy title_sprite3,x ; 4
lda title_sprite4,x ; 4
sta temp ; 3
lda title_sprite5,x ; 4 36
txs ; 2
ldx temp ; 3 41
sty GRP1 ; 3 44
stx GRP0 ; 3 47
sta GRP1 ; 3 50
sta GRP0 ; 3 53
lda #$00
sta WSYNC
sta GRP1
sta GRP0
sta GRP1
tsx
bne title_loop
sta WSYNC
sta WSYNC
sta WSYNC
lda #$00
sta WSYNC
sta PF2
WAIT_TIMINT
overscan_start
lda #$02
sta WSYNC
sta VBLANK
lda #(30*76)>>6
sta TIM64T
SPKOUT temp
WAIT_TIMINT
jmp vertical_sync
; Subroutines
read_switches
lda switch_states
eor #$ff
sta switch_edges
lda SWCHB
ora #$f4
sta switch_states
lda SWCHA
ora #$0f
and switch_states
bit INPT4
bmi switches_skip
and #$fb
switches_skip
eor #$ff
sta switch_states
and switch_edges
sta switch_edges
rts
speech_select
lda switch_edges
asl
bcs start_rightspeech
asl
bcs start_leftspeech
asl
bcs start_downspeech
asl
bcs start_upspeech
asl
bmi start_firespeech
rts
start_firespeech
SPEAK fire_speech
rts
start_upspeech
SPEAK up_speech
rts
start_downspeech
SPEAK down_speech
rts
start_leftspeech
SPEAK left_speech
rts
start_rightspeech
SPEAK right_speech
rts
; Sprite Data
align $100
title_sprite0
dc.b %00000000
dc.b %00000000
dc.b %00000000
dc.b %00000000
dc.b %00000000
dc.b %00000000
dc.b %00000000
dc.b 0
dc.b 0
dc.b %10001000
dc.b %10001000
dc.b %11111000
dc.b %10001000
dc.b %10001000
dc.b %01010000
dc.b %00100011
title_sprite1
dc.b %00000010
dc.b %00000010
dc.b %00000010
dc.b %00000010
dc.b %00000010
dc.b %00000010
dc.b %00001111
dc.b 0
dc.b 0
dc.b %10001000
dc.b %10001000
dc.b %10001111
dc.b %10001000
dc.b %10001000
dc.b %10000101
dc.b %11100010
title_sprite2
dc.b %00111110
dc.b %00100000
dc.b %00100000
dc.b %00111100
dc.b %00100000
dc.b %00100000
dc.b %10111110
dc.b 0
dc.b 0
dc.b %10100010
dc.b %10100100
dc.b %10101000
dc.b %10111100
dc.b %10100010
dc.b %00100010
dc.b %00111100
title_sprite3
dc.b %01110000
dc.b %10001000
dc.b %00001000
dc.b %01110000
dc.b %10000000
dc.b %10001000
dc.b %01110011
dc.b 0
dc.b 0
dc.b %01110000
dc.b %00100001
dc.b %00100010
dc.b %00100010
dc.b %00100010
dc.b %00100010
dc.b %01110010
title_sprite4
dc.b %10000000
dc.b %10000000
dc.b %10000000
dc.b %10000000
dc.b %10000000
dc.b %10000000
dc.b %11100000
dc.b 0
dc.b 0
dc.b %10000111
dc.b %01001000
dc.b %00101000
dc.b %00101000
dc.b %00101000
dc.b %00101000
dc.b %00100111
title_sprite5
dc.b %00000000
dc.b %00000000
dc.b %00000000
dc.b %00000000
dc.b %00000000
dc.b %00000000
dc.b %00000000
dc.b 0
dc.b 0
dc.b %00100010
dc.b %10100010
dc.b %10010100
dc.b %10001000
dc.b %10010100
dc.b %10100010
dc.b %00100010
org $fffa
dc.w boot,boot,boot