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P.A.S.E. joystick driver for the Oric Atmos, contributed by Stefan Haubenthal.

git-svn-id: svn://svn.cc65.org/cc65/trunk@4532 b7a2c559-68d2-44c3-8de9-860c34a00d81
This commit is contained in:
uz 2009-12-21 21:14:21 +00:00
parent 651df0889c
commit 62669bcb73
4 changed files with 128 additions and 1 deletions

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@ -113,6 +113,7 @@ atmoslib:
$(MAKE) SYS=atmos -C $$i || exit 1; \
$(AR) a atmos.lib $$i/*.o;\
done
cp atmos/*.joy .
cp atmos/*.tgi .
#-----------------------------------------------------------------------------

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@ -73,7 +73,7 @@ OBJS = _scrsize.o \
EMDS =
JOYS =
JOYS = atmos-pase.joy
MOUS =

125
libsrc/atmos/atmos-pase.s Normal file
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@ -0,0 +1,125 @@
;
; P.A.S.E. joystick driver for the Atmos
; May be used multiple times when linked to the statically application.
;
; Stefan Haubenthal, 2009-12-21
; Based on Ullrich von Bassewitz, 2002-12-20
;
.include "joy-kernel.inc"
.include "joy-error.inc"
; .include "atmos.inc"
; ------------------------------------------------------------------------
; Header. Includes jump table
.segment "JUMPTABLE"
; Driver signature
.byte $6A, $6F, $79 ; "joy"
.byte JOY_API_VERSION ; Driver API version number
; Button state masks (8 values)
.byte $10 ; JOY_UP
.byte $08 ; JOY_DOWN
.byte $01 ; JOY_LEFT
.byte $02 ; JOY_RIGHT
.byte $20 ; JOY_FIRE
.byte $00 ; Future expansion
.byte $00 ; Future expansion
.byte $00 ; Future expansion
; Jump table.
.addr INSTALL
.addr UNINSTALL
.addr COUNT
.addr READ
.addr 0 ; IRQ entry unused
; ------------------------------------------------------------------------
; Constants
JOY_COUNT = 2 ; Number of joysticks we support
PRA = $0301
DDRA = $0303
PRA2 = $030F
; ------------------------------------------------------------------------
; Data.
.bss
temp1: .byte $00
temp2: .byte $00
.code
; ------------------------------------------------------------------------
; INSTALL routine. Is called after the driver is loaded into memory. If
; possible, check if the hardware is present and determine the amount of
; memory available.
; Must return an JOY_ERR_xx code in a/x.
;
INSTALL:
lda #JOY_ERR_OK
ldx #0
; rts ; Run into UNINSTALL instead
; ------------------------------------------------------------------------
; UNINSTALL routine. Is called before the driver is removed from memory.
; Can do cleanup or whatever. Must not return anything.
;
UNINSTALL:
rts
; ------------------------------------------------------------------------
; COUNT: Return the total number of available joysticks in a/x.
;
COUNT:
lda #JOY_COUNT
ldx #0
rts
; ------------------------------------------------------------------------
; READ: Read a particular joystick passed in A.
;
READ:
tay
lda PRA
pha
lda DDRA
pha
lda #%11000000
sta DDRA
lda #%10000000
sta PRA2
lda PRA2
sta temp1
lda #%01000000
sta PRA2
lda PRA
sta temp2
pla
sta DDRA
pla
sta PRA2
ldx #0
tya
bne @L1
lda temp1
eor #$FF
rts
@L1: lda temp2
eor #$FF
rts

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@ -185,6 +185,7 @@ programs for the Oric Atmos using the cc65 crosscompiler.
%files atmos
%attr(644,root,root) /usr/lib/cc65/lib/atmos.lib
%attr(644,root,root) /usr/lib/cc65/tgi/atmos-*.joy
%attr(644,root,root) /usr/lib/cc65/tgi/atmos-*.tgi