Merge branch 'master' into master

This commit is contained in:
Oliver Schmidt
2021-11-23 22:56:51 +01:00
committed by GitHub
111 changed files with 3761 additions and 2043 deletions

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@@ -44,4 +44,4 @@ _exit: jsr donelib ; Run module destructors
; A 5200 program isn't supposed to exit.
halt: jmp halt
halt: jmp halt

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@@ -93,9 +93,7 @@ joy1: lda #$7F
sta CIA1_PRA
lda CIA1_PRB
cli
and #$1F
eor #$1F
rts
jmp end
; Read joystick 2
@@ -107,8 +105,6 @@ joy2: ldx #0
lda CIA1_PRA
sty CIA1_DDRA
cli
and #$1F
end: and #$1F
eor #$1F
rts

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@@ -1,11 +1,11 @@
;
; Standard joystick driver for the Creativision.
;
; Christian Groessler, 2017-03-08
; 2017-03-08, Christian Groessler
; 2021-06-01, Greg King
;
.include "zeropage.inc"
.include "joy-kernel.inc"
.include "joy-error.inc"
.include "creativision.inc"
@@ -13,10 +13,12 @@
.macpack module
buttons := tmp2
; ------------------------------------------------------------------------
; Header. Includes jump table
module_header _creativisionstd_joy
module_header _creativisionstd_joy
; Driver signature
@@ -39,16 +41,14 @@
JOY_COUNT = 2 ; Number of joysticks we support
; Symbolic names for joystick masks (similar names like the defines in joystick.h, but not related to them)
; Symbolic names for joystick masks (similar names to the macros in joystick.h,
; with the same values as the masks in creativision.h)
JOY_UP = $10
JOY_DOWN = $04
JOY_LEFT = $20
JOY_RIGHT = $08
; ------------------------------------------------------------------------
; Code
.code
; ------------------------------------------------------------------------
@@ -59,7 +59,7 @@ JOY_RIGHT = $08
;
INSTALL: lda #JOY_ERR_OK
ldx #0
ldx #>$0000
; rts ; Fall through
; ------------------------------------------------------------------------
@@ -82,14 +82,14 @@ COUNT: lda #<JOY_COUNT
; READ: Read a particular joystick passed in A.
;
READJOY: and #1 ; fix joystick number
bne READJOY_1 ; read right joystick
READJOY: lsr a ; Get joystick number
bcs READJOY_1 ; Read right joystick
; Read left joystick
ldx ZP_JOY0_DIR
lda ZP_JOY0_BUTTONS
jmp convert ; convert joystick state to cc65 values
bcc convert ; Convert joystick state to cc65 values
; Read right joystick
@@ -97,11 +97,11 @@ READJOY_1: ldx ZP_JOY1_DIR
lda ZP_JOY1_BUTTONS
lsr a
lsr a
;jmp convert ; convert joystick state to cc65 values
; fall thru...
;jmp convert ; Convert joystick state to cc65 values
; Fall thru...
; ------------------------------------------------------------------------
; convert: make runtime lib compatible values
; convert: make runtime lib-compatible values
; inputs:
; A - buttons
; X - direction
@@ -111,24 +111,24 @@ convert:
; ------
; buttons:
; Port values are for the left hand joystick (right hand joystick
; Port values are for the left-hand joystick (right-hand joystick
; values were shifted to the right to be identical).
; Why are there two bits indicating a pressed trigger?
; According to the "Second book of programs for the Dick Smith Wizard"
; (pg. 88ff), the left hand button gives the value of
; %00010001 and the right hand button gives %00100010
; (pg. 88ff), the left-hand button gives the value of
; %00010001 and the right-hand button gives %00100010
; Why two bits? Can there be cases that just one of those bits is set?
; Until these questions have been answered, we only use the lower two
; bits and ignore the upper ones...
; Until those questions have been answered, we only use the lower two
; bits, and ignore the upper ones.
and #%00000011 ; button status came in in A, strip high bits
sta retval ; initialize 'retval' with button status
and #%00000011 ; Button status came in A, strip high bits
sta buttons
; ------
; direction:
; CV has a 16-direction joystick
; CV has a 16-direction joystick.
;
; port values: (compass points)
; Port values: (compass points)
; N - $49 - %01001001
; NNE - $48 - %01001000
; NE - $47 - %01000111
@@ -147,55 +147,51 @@ convert:
; NNW - $4A - %01001010
; center - $00 - %00000000
;
; mapping to cc65 definitions (4-direction joystick with 8 possible directions thru combinations)
; Mapping to cc65 definitions (4-direction joystick with 8 possible directions thru combinations):
; N, E, S, W -> JOY_UP, JOY_RIGHT, JOY_DOWN, JOY_LEFT
; NE, SE, SW, NW -> (JOY_UP | JOY_RIGHT), (JOY_DOWN | JOY_RIGHT), (JOY_DOWN | JOY_LEFT), (JOY_UP | JOY_LEFT)
; NNE, ENE, ESE, SSE, SSW, WSW, WNW, NNW:
; toggle between straight and diagonal direction for every call, e.g.
; toggle between the straight and diagonal directions for each call, e.g.,
; NNE:
; call to READJOY: return JOY_UP | JOY_RIGHT
; call to READJOY: return JOY_UP
; call to READJOY: return JOY_UP | JOY_RIGHT
; call to READJOY: return JOY_UP
; call to READJOY: return JOY_UP | JOY_RIGHT
; etc...
; etc.
txa ; move direction status into A
beq done ; center position (no bits are set), nothing to do
txa ; Move direction status into A
beq done ; Center position (no bits are set), nothing to do
and #$0F ; get rid of the "$40" bit
bit bit0 ; is it a "three letter" direction (NNE, ENE, etc.)?
beq special ; yes (bit #0 is zero)
and #$0F ; Get rid of the "$40" bit
lsr a ; Is it "three-letter" direction (NNE, ENE, etc.)?
tax ; Create index into table
bcc special ; Yes (bit #0 was zero)
lsr a ; create index into table
tax
lda dirtable,x
done: ora retval ; include "button" bits
ldx #0
done: ora buttons ; Include button bits
ldx #>$0000
rts
; NNE, ENE, ESE, SSE, SSW, WSW, WNW, NNW
special: lsr a
tax
lda toggler ; toggle the toggler
special: lda toggle ; Toggle the flag
eor #$01
sta toggler
bne spec_1 ; toggler is 1, use spectable_1 entry
sta toggle
bne spec_1 ; Flag is 1, use spectable_1 entry
lda spectable_0,x ; toggler is 0, use spectable_0 entry
bne done ; jump always
lda spectable_0,x
bne done ; Jump always
spec_1: lda spectable_1,x
bne done ; jump always
bne done ; Jump always
; ------------------------------------------------------------------------
;
.rodata
; a mapping table of "port values" to "cc65 values"
; port value had been shifted one bit to the right (range 0..7)
; A mapping table of "port values" to "cc65 values"
; Port value had been shifted one bit to the right (range 0..7)
dirtable: .byte JOY_DOWN ; S
.byte JOY_DOWN | JOY_RIGHT ; SE
.byte JOY_RIGHT ; E
@@ -205,12 +201,12 @@ dirtable: .byte JOY_DOWN ; S
.byte JOY_LEFT ; W
.byte JOY_DOWN | JOY_LEFT ; SW
; two "special" mapping tables for three-letter directions (NNE, etc.)
; Two "special" mapping tables for three-letter directions (NNE, etc.)
spectable_0: .byte JOY_DOWN ; SSW
.byte JOY_DOWN ; SSE
.byte JOY_RIGHT ; ESE
.byte JOY_RIGHT ; ENE
.byte JOY_RIGHT ; NNE
.byte JOY_UP ; NNE
.byte JOY_UP ; NNW
.byte JOY_LEFT ; WNW
.byte JOY_LEFT ; WSW
@@ -224,14 +220,10 @@ spectable_1: .byte JOY_DOWN | JOY_LEFT ; SSW
.byte JOY_UP | JOY_LEFT ; WNW
.byte JOY_DOWN | JOY_LEFT ; WSW
; ------------------------------------------------------------------------
;
bit0: .byte $01
; ------------------------------------------------------------------------
;
.bss
toggler: .res 1
retval: .res 1
toggle: .res 1
.end

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@@ -0,0 +1,40 @@
; void __fastcall__ bios_playsound (void *a, unsigned char b);
.export _bios_playsound
.import popax
.include "creativision.inc"
songptr := $00 ; Points to current tune data
volptr := $04 ; Points to current volume table
;* Creativision Sound Player
;* Based on BIOS song player.
;*
;* Pass a pointer to a set of note triples, terminated with a tempo byte;
;* and pass the length of the triples and tempo (max 255).
;*
;* Note: tune data must be stored backwards.
_bios_playsound:
php
pha ; Save tune length
sei
lda #<$FCD5 ; BIOS decreasing-volume table
ldx #>$FCD5
sta volptr
stx volptr+1
jsr popax ; Get tune array pointer
sta songptr
stx songptr+1
pla
tay
dey ; Point to tempo byte
jmp BIOS_PLAY_SONG ; Let BIOS do its thing

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@@ -1,63 +1,30 @@
; void __fastcall__ psg_outb( unsigned char b );
; void __fastcall__ psg_delayms( unsigned char c);
; void __fastcall__ bios_playsound( void *b, unsigned char c);
; void psg_silence( void );
; void __fastcall__ psg_outb (unsigned char b);
; void __fastcall__ psg_delay (unsigned char b);
; void psg_silence (void);
.export _psg_outb, _psg_silence, _psg_delay
.export _psg_outb, _psg_silence, _psg_delay
.export _bios_playsound
.import popa
.include "creativision.inc"
_psg_outb:
;* Let BIOS output the value
jmp $FE77
;* Let BIOS output the value.
_psg_outb := BIOS_POKE_PSG
_psg_silence:
jmp $FE54
_psg_silence := BIOS_QUIET_PSG
_psg_delay:
tay
l1: lda #200
l2: sbc #1
bne l2
l1: lda #200
l2: sbc #1
bne l2
lda #200
l3: sbc #1
bne l3
lda #200
l3: sbc #1
bne l3
dey
bne l1
bne l1
rts
;* Creativision Sound Player
;*
;* Based on BIOS sound player.
;* Pass a pointer to a set of note triples, terminated with a tempo byte
;* and the len (max 255)
_bios_playsound:
pha ; Save Length Byte
sei
lda #$D5 ; BIOS volume table low
sta $4
lda #$FC ; BIOS volume table high
sta $5
jsr popa ; Get Sound table pointer low
sta $0
jsr popa ; Get Sound table pointer high
sta $1
pla
tay ; Put length in Y
dey
php
jmp $FBED ; Let BIOS do it's thing

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@@ -36,7 +36,7 @@ emd_sig: .byte $65, $6d, $64, EMD_API_VERSION ; "emd", version
;----------------------------------------------------------------------------
; unsigned char __fastcall__ em_install (void* driver);
; unsigned char __fastcall__ em_install (const void* driver);
; /* Install the driver once it is loaded */

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@@ -3,7 +3,7 @@
;
; 25.12.99
; void GraphicsString (char *myString);
; void GraphicsString (const void *myString);
.export _GraphicsString

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@@ -33,7 +33,7 @@ joy_sig: .byte $6A, $6F, $79, JOY_API_VERSION ; "joy", version
.code
;----------------------------------------------------------------------------
; unsigned char __fastcall__ joy_install (void* driver);
; unsigned char __fastcall__ joy_install (const void* driver);
; /* Install the driver once it is loaded */

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@@ -39,7 +39,7 @@ ser_sig: .byte $73, $65, $72, SER_API_VERSION ; "ser", version
.code
;----------------------------------------------------------------------------
; unsigned char __fastcall__ ser_install (void* driver);
; unsigned char __fastcall__ ser_install (const void* driver);
; /* Install the driver once it is loaded */

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@@ -67,13 +67,13 @@ not_dma:
; Removing this segment gives only a warning.
.segment "FFF0"
.proc reset32kcode
lda #(6<<5) | SV_LCD_ON | SV_NMI_ENABLE_ON
lda #(6<<5) | SV_LCD_ON | SV_NMI_ENABLE_ON
sta sv_bank
; Now, the 32Kbyte image can reside in the top of 64Kbyte and 128Kbyte ROMs.
jmp reset
.endproc
.segment "VECTOR"
.segment "VECTORS"
.word nmi
.word reset32kcode

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@@ -88,7 +88,7 @@ tgi_sig: .byte $74, $67, $69, TGI_API_VERSION ; "tgi", version
.code
;----------------------------------------------------------------------------
; void __fastcall__ tgi_install (void* driver);
; void __fastcall__ tgi_install (const void* driver);
; /* Install an already loaded driver. */