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fastchip.s
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; %help
; fastchip -- Control A2Heaven FastChip //e
;
; THIS PROGRAM IS BETA, SOME THINGS MAY NOT WORK!
;
; options:
; -l List speeds and exit
; -s <num> Set speed, 0-40, see -l for list of speed values
; Setting speed to 0 (off) causes a reboot.
; -p <str> Set slot speeds, slot numbers in str are set to fast, rest slow
; To set all slow, use -p 0. Will not set Disk IIs to fast.
; -a <num> Set audio (speaker) delay, 0-4 (Off/Fast/Normal/Music/Hifi)
; -j <num> Set joystick delay, 0-2 (Off/Short/Long)
; -b <num> Set backlight, 0-5 (Off/Fade/Speed/R/G/B)
; -y Answer reboot y/n questions with yes
;
; Invalid values are silently ignored. Settings that will cause a reboot
; will be confirmed unless -y is given.
;
; No options: List current settings
; %hend
.p02
.include "davex-mg.inc"
UNLOCKV = $6a
LOCKV = $a6
CFG_SPEED = $00
CFG_SLOTS = $01
CFG_SPKR = $02
CFG_JSTCK = $03
CFG_RFENA = $04
CFG_RFSLT = $05
CFG_RWENA = $06
CFG_LIGHT = $07
fcbase = $c06a
fcenable = fcbase+1
fcslots = fcbase+2
fcspeed = fcbase+3
fcregnum = fcbase+4
fcregval = fcbase+5
showall = xczpage ; if nonzero, don't show all settings
myidx = showall+1 ; index variable
mytemp = myidx+1 ; temp for use in setting/showing/misc
mytemp1 = mytemp+2 ; temp for Disk II check
savex = mytemp1+2 ; place to save x reg
savey = savex+1 ; place to save y reg
DX_start dx_mg_auto_origin ; load address
DX_info $01,$12,dx_cc_iie_or_iigs,$00
DX_ptab
DX_parm 'l',t_nil ; list speeds
DX_parm 's',t_int1 ; speed
DX_parm 'p',t_string ; slot speeds
DX_parm 'a',t_int1 ; speaker delay
DX_parm 'j',t_int1 ; joystick delay
DX_parm 'b',t_int1 ; backlight
DX_parm 'y',t_nil ; force yes
DX_end_ptab
DX_desc "Control FastChip //e."
DX_main
; let user list speeds even if not on a supported machine
lda #'l'|$80 ; list speed?
jsr xgetparm_ch
bcs :+
jmp listspeeds
; davex has already identified the machine as a //e or IIgs
: sec
jsr checkmach ; see if IIgs
bcs :+ ; not a IIgs
badiie: lda #$01
jsr xredirect
jsr xmess
asc_hi "This program requires an Apple //e"
.byte $8d,$00
exiterr: lda #$ff
jsr xredirect
jmp xerr
: lda $fbdd ; //e Card ID byte
cmp #$02
beq badiie ; not gonna work
; meat and potatoes now follow
jsr fcdetect
bcc doit
lda #$01
jsr xredirect
jsr xmess
asc_hi "No FastChip detected!"
.byte $8d,$00
jmp exiterr ; comment out for basic emulator testing
doit: lda #$00
sta showall
jsr try_all
lda showall
bne :+
jsr show_all
: rts
; Try all config setting options
.proc try_all
php
sei
jsr fcunlock
sta fcenable
jsr try_speed
jsr try_slots
jsr try_speaker
jsr try_joystick
jsr try_backlight
jsr fclock
plp
rts
.endproc
.proc try_speed
lda #'s'|$80
jsr xgetparm_ch
bcs done
cpy #0
beq disable
cpy #41 ; too big?
bcs done
doset: lda #CFG_SPEED
sta fcregnum ; config reg
sty fcregval ; value
noset: jsr show_speed
inc showall
done: rts
disable: lda #'y'|$80
jsr xgetparm_ch
bcc :+
jsr ask_reboot
beq noset
: ldy #0
beq doset
.endproc
.proc try_slots
lda #'p'|$80
jsr xgetparm_ch
bcc :+
rts
: sta mytemp+1 ; save string pointer
sty mytemp
ldy #$00
sty myidx ; we'll keep calculated value here
lda (mytemp),y ; length of string
beq done ; empty
tay ; length into y
lp: lda (mytemp),y ; get char
and #$7f
cmp #'1'
bcc next
cmp #'7'+1
bcs next
and #$0f ; get the bits containing slot #
jsr is_disk_ii ; check if Disk II
bcc :+ ; nope, go ahead
sty savey ; otherwise, warn user
jsr xmess
asc_hi "Not setting fast Disk II for slot "
.byte $00
ldy savey
lda (mytemp),y ; get slot number back
ora #$80 ; make printable
jsr cout ; print it
lda #$8d ; and cr
jsr cout
jmp next ; go to next number
: tax
lda #$01
: asl ; shift left for the slot
dex
bne :-
ora myidx ; combine with existing
sta myidx ; and save
next: dey
bne lp
ldy myidx ; get computed value
lda #CFG_SLOTS
sta fcregnum ; config reg
sty fcregval ; value
;lda #$00 ; DEBUG
;jsr xprdec_2 ; DEBUG
jsr show_slots
inc showall
done: rts
.endproc
.proc try_speaker
lda #'a'|$80
jsr xgetparm_ch
bcs done
cpy #05 ; too big?
bcs done
lda #CFG_SPKR
sta fcregnum ; config reg
sty fcregval ; value
jsr show_speaker
inc showall
done: rts
.endproc
.proc try_joystick
lda #'j'|$80
jsr xgetparm_ch
bcs done
cpy #03 ; too big?
bcs done
lda #CFG_JSTCK
sta fcregnum ; config reg
sty fcregval ; value
jsr show_joystick
inc showall
done: rts
.endproc
.proc try_backlight
lda #'b'|$80
jsr xgetparm_ch
bcs done
cpy #06 ; too big?
bcs done
lda #CFG_LIGHT
sta fcregnum ; config reg
sty fcregval ; value
jsr show_backlight
inc showall
done: rts
.endproc
; Show all current settings
.proc show_all
jsr xmess
asc_hi "FastChip //e"
.byte $8d
asc_hi "------------"
.byte $8d,$00
php
sei
jsr fcunlock
sta fcenable
jsr show_speed
jsr show_slots
jsr show_speaker
jsr show_joystick
jsr show_backlight
jsr show_slinky
jsr show_aux
jsr fclock
plp
rts
.endproc
.proc show_speed
jsr xmess
asc_hi "Speed: "
.byte $00
lda #CFG_SPEED
sta fcregnum ; config reg
lda fcregval ; get speed
pha ; save it
tay ; and put in y for printing
lda #$00 ; high byte for printing
jsr xprdec_2
jsr xmess
asc_hi " = "
.byte $00
pla ; get speed back
jsr print_speed ; print it
bcs :+ ; skip if non-number printed by print_speed
jsr xmess
asc_hi " MHz"
.byte $00
: lda #$8d
jsr cout
rts
.endproc
.proc show_slots
jsr xmess
asc_hi "Slots: "
.byte $00
lda #CFG_SLOTS
sta fcregnum
lda fcregval
lsr ; slot zero bit unused
sta temp
lda #'1'|$80
sta myidx
lp: jsr cout ; myidx reloaded at end of loop
lsr temp ; get slot bit into carry
bcc :+ ; fast are marked with 1 bits
lda #'+'|$80 ; indicate fast
bne :++ ; always
: lda #' '|$80 ; indicate slow
: jsr cout ; print fast/slow
lda #' '|$80 ; now get a space for separation
jsr cout ; print it
inc myidx ; next slot
lda myidx ; get it
cmp #'8'|$80 ; done with slots?
bcc lp ; nope, print this one
jsr xmess
asc_hi "(+ = fast)"
.byte $8d,$00
rts
.endproc
.proc show_speaker
jsr xmess
asc_hi "Speaker: "
.byte $00
lda #CFG_SPKR
sta fcregnum
ldx fcregval
bne :+
jsr pr_off
lda #$8d
jsr cout
rts
: dex
bne :+
jsr xmess
asc_hi "Fast"
.byte $8d,$00
rts
: dex
bne :+
jsr xmess
asc_hi "Normal"
.byte $8d,$00
rts
: dex
bne :+
jsr xmess
asc_hi "Music"
.byte $8d,$00
rts
: dex
bne :+
jsr xmess
asc_hi "HiFi"
.byte $8d,$00
rts
: jsr pr_err
lda #$8d
jsr cout
rts
.endproc
.proc show_joystick
jsr xmess
asc_hi "Joystick: "
.byte $00
lda #CFG_JSTCK
sta fcregnum
ldx fcregval
bne :+
jsr pr_off
lda #$8d
jsr cout
rts
: dex
bne :+
jsr xmess
asc_hi "Short"
.byte $8d,$00
rts
: dex
bne :+
jsr xmess
asc_hi "Long"
.byte $8d,$00
rts
: jsr pr_err
lda #$8d
jsr cout
rts
.endproc
.proc show_backlight
jsr xmess
asc_hi "Backlight: "
.byte $00
lda #CFG_LIGHT
sta fcregnum
ldx fcregval
bne :+
jsr pr_off
lda #$8d
jsr cout
rts
: dex
bne :+
jsr xmess
asc_hi "Fade"
.byte $8d,$00
rts
: dex
bne :+
jsr xmess
asc_hi "Speed"
.byte $8d,$00
rts
: dex
bne :+
jsr xmess
asc_hi "Red"
.byte $8d,$00
rts
: dex
bne :+
jsr xmess
asc_hi "Green"
.byte $8d,$00
rts
: dex
bne :+
jsr xmess
asc_hi "Blue"
.byte $8d,$00
rts
: jsr pr_err
lda #$8d
jsr cout
rts
.endproc
.proc show_slinky
jsr xmess
asc_hi "Slinky: "
.byte $00
lda #CFG_RFENA
sta fcregnum
lda fcregval
jsr pr_onoff
jsr xmess
asc_hi ", slot "
.byte $00
lda #CFG_RFSLT
sta fcregnum
ldy fcregval
lda #$00
jsr xprdec_2
lda #$8d
jsr cout
rts
.endproc
.proc show_aux
jsr xmess
asc_hi "Aux RAM: "
.byte $00
lda #CFG_RWENA
sta fcregnum
lda fcregval
jsr pr_onoff
lda #$8d
jsr cout
rts
.endproc
; detect fastchip //e. If present, return carry clear
; otherwise return carry set.
.proc fcdetect
php
sei
jsr fcunlock ; unlock
sta fcenable ; enable FC registers
lda fcenable ; now see if it's there
bpl notfound ; bit 7 set if present and enabled
ldy fcspeed ; speed reg
iny ; increment
tya ; put in accum
dey ; fix value back for later restore
and #$1f ; at this point value is not what we read out
sta fcspeed ; set speed reg
eor fcspeed ; a should be 0 now
sty fcspeed ; restore value
bne notfound ; or not found
sta fcregnum ; config register select, 0 = speed
cpy fcregval ; config register data, saved speed
bne notfound ; no match, no fastchip
; at this point we have a high degree of confidence that FC is there
jsr fclock ; lock it back up
plp ; restore IRQs
clc ; indicate found
rts
notfound: plp ; restore IRQs
sec ; indicate not found
rts
.endproc
.proc fcunlock
lda #UNLOCKV
sta fcbase
sta fcbase
sta fcbase
sta fcbase
rts
.endproc
.proc fclock
lda #LOCKV
sta fcbase
rts
.endproc
.proc listspeeds
lda #$00
sta num+2 ; clear upper bytes of num
sta num+1
lda #41
sta myidx
spdlp: dec myidx ; next index
bmi done
lda myidx ; get it into accumulator
sta num ; prepare to print
pha ; save it
and #%11 ; mask off low bits
php ; save Z flag
tax
lda tabstops,x ; get tab stop for table
sta ch ; set cursor pos
plp
bne :+ ; if 0, no cr
lda #$8d
jsr cout
: ldy #$01 ; field width-1
jsr xprdec_pady
lda #'='|$80
jsr cout
pla ; get speed back
jsr print_speed ; and print it
lda #' '|$80 ; in case output doesn't respect ch
jsr cout
jmp spdlp
done: jsr xmess
.byte $8d,$00
rts
tabstops: .byte 0,30,20,10
.endproc
; print fastchip speed in MHz from value in A
; returns carry clear if a number was printed
; carry set otherwise
.proc print_speed
cmp #41
bcs invalid
ora #$00
beq off
asl
tax
ldy spdtab,x ; MHz
lda spdtab+1,x ; decimal
pha ; save it
lda #$00
jsr xprdec_2 ; print MHz in AY
lda #'.'|$80
jsr cout
pla ; get decimal back
tay
lda #$00
jsr xprdec_2 ; print decimal in AY
clc
rts
invalid: jsr pr_err
sec
rts
off: jsr pr_off
sec
rts
; speed table... each pair is MHZ.decimal
spdtab: .byte 0,0,0,2,0,3
.byte 0,4,0,5,0,6
.byte 0,7,0,8,0,9
.byte 1,0,1,1,1,2
.byte 1,3,1,4,1,5
.byte 1,6,1,7,1,8
.byte 1,9,2,0,2,1
.byte 2,2,2,3,2,5
.byte 2,6,2,7,2,9
.byte 3,1,3,3,3,5
.byte 3,8,4,1,4,55
.byte 5,0,5,5,6,2
.byte 7,1,8,3,10,0
.byte 12,5,16,6
.endproc
.proc ask_reboot
lda #$01
jsr xredirect
jsr xmess
asc_hi "Apply setting and reboot"
.byte $00
lda #'n'|$80
jsr xyesno2
php
lda #$ff
jsr xredirect
plp ; restore z flag
rts
.endproc
.proc pr_err
jsr xmess
asc_hi "Err!"
.byte $00
rts
.endproc
.proc pr_onoff
ora #$00
beq pr_off
cmp #$01
bne pr_err
jsr xmess
asc_hi "On"
.byte $00
rts
.endproc
.proc pr_off
jsr xmess
asc_hi "Off"
.byte $00
rts
.endproc
; check slot referenced by A, set carry if disk II, clear carry if not
; saves all regs
.proc is_disk_ii
pha
stx savex
sty savey
ora #$c0
sta mytemp1+1
lda #$00
sta mytemp1
ldx #$03
: ldy idloc,x
lda (mytemp1),y
cmp idval,x
bne :+
dex
bpl :-
sec
bcs getxy
: clc
getxy: ldx savex
ldy savey
pla
rts
idloc: .byte $01,$03,$05,$ff
idval: .byte $20,$00,$03,$00
.endproc
DX_end