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TestJ2b.asm
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TestJ2b.asm
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; 2B+ Joystick test program
; By Abel Carrasco
;--------------------------------------------------------------------------------
; 01/05/2019 - first version
; 06/04/2019 - change graphics
; 11/04/2021 - changes shared by Eyvind Bernhardsen :
; * allow testing of non-Joy2B sticks
; * buttons 2 and 3 only appear if they are present
; * tweak and add decay to the sounds
; * make the direction rose point in eight directions instead of four
; 12/04/2021 - change of text to english and new version
RTCLOK = $14
ATRACT = $4d
VDSLST = $200
SDLSTL = $230
PADDL0 = $270
PADDL1 = $271
PADDL2 = $272
PADDL3 = $273
STICK0 = $278
STICK1 = $279
COLOR1 = $2c5
COLOR2 = $2c6
STRIG0 = $d010
STRIG1 = $d011
COLPF0 = $d016
COLBK = $d01a
AUDF1 = $d200
AUDC1 = $d201
AUDF2 = $d202
AUDC2 = $d203
AUDF3 = $d204
AUDC3 = $d205
AUDF4 = $d206
AUDC4 = $d207
AUDCTL = $d208
PORTA = $d300
WSYNC = $d40a
NMIEN = $d40e
org $2000
; Program start
start
mva #0 AUDCTL
mva #59 AUDF1
mva #71 AUDF2
mva #84 AUDF3
mva #107 AUDF4
mwa #dl SDLSTL
mwa #dli VDSLST
mva #$c0 NMIEN
mva #$30 COLOR2
mva #$f COLOR1
; Joystick control
joystick
mva #0 ATRACT
lda STICK0
drawDirection #%0101, #%0000, #$47, joy1_1+10 ; up + left
drawDirection #%1101, #%1100, #$7c, joy1_1+11 ; up
drawDirection #%1001, #%0000, #$46, joy1_1+12 ; up + right
drawDirection #%0111, #%0011, #$52, joy1_2+10 ; left
drawDirection #%1011, #%0011, #$52, joy1_2+12 ; right
drawDirection #%0110, #%0000, #$46, joy1_3+10 ; down + left
drawDirection #%1110, #%1100, #$7c, joy1_3+11 ; down
drawDirection #%1010, #%0000, #$47, joy1_3+12 ; down + right
setVolume prev_s1, vol_s1
lda STICK1
drawDirection #%0101, #%0000, #$47, joy2_1+10 ; up + left
drawDirection #%1101, #%1100, #$7c, joy2_1+11 ; up
drawDirection #%1001, #%0000, #$46, joy2_1+12 ; up + right
drawDirection #%0111, #%0011, #$52, joy2_2+10 ; left
drawDirection #%1011, #%0011, #$52, joy2_2+12 ; right
drawDirection #%0110, #%0000, #$46, joy2_3+10 ; down + left
drawDirection #%1110, #%1100, #$7c, joy2_3+11 ; down
drawDirection #%1010, #%0000, #$47, joy2_3+12 ; down + right
setVolume prev_s2, vol_s2
sound vol_s1, vol_s2, AUDC1
; Buttons
lda STRIG0
readButton #$01, #"1", joy1_2+18, vol_a1
lda STRIG1
readButton #$10, #"1", joy2_2+18, vol_a2
sound vol_a1, vol_a2, AUDC2
lda PADDL0
cmp #$e4
readButton #$02, #"2", joy1_2+23, vol_b1
lda PADDL2
cmp #$e4
readButton #$20, #"2", joy2_2+23, vol_b2
sound vol_b1, vol_b2, AUDC3
lda PADDL1
cmp #$e4
readButton #$04, #"3", joy1_2+28, vol_c1
lda PADDL3
cmp #$e4
readButton #$40, #"3", joy2_2+28, vol_c2
sound vol_c1, vol_c2, AUDC4
ldx #0
ldy #3
delay
dex
bne delay
dey
bne delay
jmp joystick
; The drawDirection macro pushes the accumulator to the stack on entry
; and pops it back off on exit to allow chaining.
.macro drawDirection mask, value, char, pos
pha
and :mask
cmp :value
bne clear
lda :char
bne draw
clear
lda #0
draw
sta :pos
pla
.endm
.macro setVolume prev, vol
cmp :prev
beq unchanged
sta :prev
cmp #$f
beq not_held
lda #$8f
bne setvol
not_held
lda #0
beq setvol
unchanged
lda :vol
beq skip
sec
sbc #1
setvol
sta :vol
skip
.endm
.macro sound v1, v2, channel
lda :v1
cmp :v2
scs:lda :v2
lsr
lsr
lsr
lsr
seq:ora #$a0
sta :channel
.endm
.macro readButton mask, char, pos, vol
beq pressed
lda :exists
ora :mask
sta :exists
mva :char+128 :pos
lda #0
beq setvol
pressed
lda :exists
and :mask
beq next
mva :char :pos
lda :vol
bne decay
lda #$8f
bne setvol
decay
cmp #$f
bcc next
sbc #1
setvol
sta :vol
next
.endm
exists
.byte 0
vol_s1
.byte 0
vol_s2
.byte 0
prev_s1
.byte 0
prev_s2
.byte 0
vol_a1
.byte 0
vol_a2
.byte 0
vol_b1
.byte 0
vol_b2
.byte 0
vol_c1
.byte 0
vol_c2
.byte 0
; Display list
dl
:3 .byte $70
.byte $70+$80
.byte $47
.word title
.byte $40,$46
.word author
.byte $70,$70
.byte $42
.word blankline
.byte $42
.word joy1_1
.byte $42
.word joy1_2
.byte $42
.word joy1_3
.byte $42
.word blankline
.byte $70
.byte $42
.word blankline
.byte $42
.word joy2_1
.byte $42
.word joy2_2
.byte $42
.word joy2_3
.byte $42
.word blankline
.byte $70,$70,$42
.word messages
.byte $02
.byte $41
.word dl
; Title messages
title
.byte " TESTER JOY 2B+ "
author
.byte " BY ASCRNET V2021 "
blankline
:40 .byte " "
joy1_1
:10 .byte " "
.byte 0,92,0
:4 .byte " "
.byte 72," "*,74
:2 .byte " "
.byte 72," "*,74
:2 .byte " "
.byte 72," "*,74
:10 .byte " "
joy1_2
:10 .byte " "
.byte 94,"O",95
:4 .byte " "
.byte " "*
:2 .byte " "
.byte " "*
:2 .byte " "
.byte " "*
:10 .byte " "
joy1_3
:10 .byte " "
.byte 0,93,0
:4 .byte " "
.byte 202," "*,200
:2 .byte " "
.byte 202," "*,200
:2 .byte " "
.byte 202," "*,200
:10 .byte " "
joy2_1
:10 .byte " "
.byte 0,92,0
:4 .byte " "
.byte 72," "*,74
:2 .byte " "
.byte 72," "*,74
:2 .byte " "
.byte 72," "*,74
:10 .byte " "
joy2_2
:10 .byte " "
.byte 94,"O",95
:4 .byte " "
.byte " "*
:2 .byte " "
.byte " "*
:2 .byte " "
.byte " "*
:10 .byte " "
joy2_3
:10 .byte " "
.byte 0,93,0
:4 .byte " "
.byte 202," "*,200
:2 .byte " "
.byte 202," "*,200
:2 .byte " "
.byte 202," "*,200
:10 .byte " "
messages
.byte " Buttons "
.byte "2"*
.byte " and "
.byte "3"*
.byte " will be activated when "
.byte " a joystick with support is connected "
; Display list interrupts
dli
phr
ldx #$0
dli_color1
lda dli_colores1,x
sta COLPF0
sta WSYNC
inx
cpx #16
bne dli_color1
ldx #0
dli_color2
lda dli_colores2,x
sta COLBK
sta WSYNC
inx
cpx #18
bne dli_color2
plr
rti
; DLI colors
dli_colores1
.byte $b0,$b0,$b0,$bf,$bf,$bc,$bc,$ba,$ba,$b8,$b8,$b6,$b6,$b4,$b4,$f
dli_colores2
.byte $0,$0,$0,$2a,$28,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$28,$2a,$0
run start