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Apple 2 joystick driver based on code by Stefan Haubenthal
git-svn-id: svn://svn.cc65.org/cc65/trunk@2113 b7a2c559-68d2-44c3-8de9-860c34a00d81
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cuz
parent
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commit
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@ -38,7 +38,7 @@ all:
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# Apple ][
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apple2lib:
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for i in apple2 common runtime conio dbg em tgi; do \
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for i in apple2 common runtime conio dbg em joystick tgi; do \
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AS=$(AS) \
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CC=$(CC) \
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LD=$(LD) \
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@ -115,7 +115,7 @@ c16lib:
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# C64
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c64lib:
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for i in c64 cbm common runtime conio dbg em joystick tgi; do \
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for i in c64 cbm common runtime conio dbg em joystick serial tgi; do \
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AS=$(AS) \
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CC=$(CC) \
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LD=$(LD) \
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@ -169,7 +169,7 @@ cbm510lib:
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# PET-II series
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cbm610lib:
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for i in cbm610 cbm common runtime conio dbg em; do \
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for i in cbm610 cbm common runtime conio dbg em joystick tgi; do \
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CC=$(CC) \
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AS=$(AS) \
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LD=$(LD) \
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@ -216,7 +216,7 @@ geoslib:
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# NES
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neslib:
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for i in nes common runtime conio em tgi; do \
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for i in nes common runtime conio em joystick tgi; do \
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CC=$(CC) \
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AS=$(AS) \
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LD=$(LD) \
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@ -231,7 +231,7 @@ neslib:
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# CBM PET machines
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petlib:
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for i in pet cbm common runtime conio dbg em tgi; do \
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for i in pet cbm common runtime conio dbg em joystick tgi; do \
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CC=$(CC) \
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AS=$(AS) \
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LD=$(LD) \
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@ -264,14 +264,15 @@ plus4lib:
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.PHONY: clean
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clean:
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@for i in cbm common conio dbg em joystick runtime tgi $(ALLTARGETS); do\
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$(MAKE) -C $$i clean; \
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$(MAKE) -C $$i clean; \
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done
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.PHONY: zap
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zap: clean
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@for i in cbm common conio dbg em joystick runtime tgi $(ALLTARGETS); do\
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$(MAKE) -C $$i zap; \
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$(MAKE) -C $$i zap; \
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done
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@rm -f *.o *.emd *.joy *.lib *.tgi
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3
libsrc/apple2/.cvsignore
Normal file
3
libsrc/apple2/.cvsignore
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@ -0,0 +1,3 @@
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*.emd
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*.joy
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*.tgi
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@ -14,6 +14,15 @@
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%.o: %.s
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@$(AS) -g -o $@ $(AFLAGS) $<
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%.emd: %.o ../runtime/zeropage.o
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@$(LD) -t module -o $@ $^
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%.joy: %.o ../runtime/zeropage.o
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@$(LD) -t module -o $@ $^
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%.tgi: %.o ../runtime/zeropage.o
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@$(LD) -t module -o $@ $^
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#--------------------------------------------------------------------------
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# Object files
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@ -28,6 +37,7 @@ OBJS= _scrsize.o \
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crt0.o \
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ctype.o \
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cvline.o \
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joy_stddrv.o \
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kbhit.o \
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mainargs.o \
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randomize.o \
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@ -37,15 +47,28 @@ OBJS= _scrsize.o \
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where.o \
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write.o
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#--------------------------------------------------------------------------
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# Drivers
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EMDS =
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JOYS = apple2-stdjoy.joy
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TGIS =
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#--------------------------------------------------------------------------
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# Targets
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.PHONY: all clean zap
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all: $(OBJS)
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all: $(OBJS) $(EMDS) $(JOYS) $(TGIS)
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../runtime/zeropage.o:
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$(MAKE) -C $(dir $@) $(notdir $@)
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clean:
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@rm -f $(OBJS)
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@rm -f $(OBJS) $(EMDS:.emd=.o) $(JOYS:.joy=.o) $(TGIS:.tgi=.o)
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zap: clean
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@rm -f $(EMDS) $(JOYS) $(TGIS)
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145
libsrc/apple2/apple2-stdjoy.s
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145
libsrc/apple2/apple2-stdjoy.s
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@ -0,0 +1,145 @@
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;
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; Standard joystick driver for the Apple ][. May be used multiple times when
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; linked to the statically application.
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;
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; Ullrich von Bassewitz, 2003-05-02
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; Using the readjoy code from Stefan Haubenthal
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;
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.include "zeropage.inc"
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.include "joy-kernel.inc"
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.include "joy-error.inc"
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.include "apple2.inc"
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.macpack generic
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; ------------------------------------------------------------------------
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; Constants
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JOY_UP = $01
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JOY_DOWN = $02
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JOY_LEFT = $04
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JOY_RIGHT = $08
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JOY_FIRE = $10
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OFFS = 10
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; ------------------------------------------------------------------------
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; Header. Includes jump table
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.segment "JUMPTABLE"
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; Driver signature
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.byte $6A, $6F, $79 ; "joy"
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.byte $00 ; Driver API version number
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; Button state masks (8 values)
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.byte JOY_UP
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.byte JOY_DOWN
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.byte JOY_LEFT
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.byte JOY_RIGHT
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.byte JOY_FIRE
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.byte $00 ; Future expansion
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.byte $00 ; Future expansion
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.byte $00 ; Future expansion
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; Jump table.
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.word INSTALL
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.word UNINSTALL
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.word COUNT
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.word READJOY
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; ------------------------------------------------------------------------
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; Constants
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JOY_COUNT = 2 ; Number of joysticks we support
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; ------------------------------------------------------------------------
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; Data.
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.code
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; ------------------------------------------------------------------------
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; INSTALL routine. Is called after the driver is loaded into memory. If
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; possible, check if the hardware is present and determine the amount of
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; memory available.
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; Must return an JOY_ERR_xx code in a/x.
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;
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INSTALL:
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lda #<JOY_ERR_OK
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ldx #>JOY_ERR_OK
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; rts ; Run into DEINSTALL instead
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; ------------------------------------------------------------------------
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; UNINSTALL routine. Is called before the driver is removed from memory.
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; Can do cleanup or whatever. Must not return anything.
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;
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UNINSTALL:
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rts
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; ------------------------------------------------------------------------
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; COUNT: Return the total number of available joysticks in a/x.
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;
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COUNT:
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lda #<JOY_COUNT
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ldx #>JOY_COUNT
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rts
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; ------------------------------------------------------------------------
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; READ: Read a particular joystick passed in A.
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;
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READJOY:
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and #$01 ; Fix joystick number
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asl a ;
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tax ; Joystick number (0,2) into X
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; Read joystick
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lda #$00 ; Clear result
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ldy OPEN_APPLE,x ; Check fire button
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bpl @nofire
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ora #JOY_FIRE ; Fire button pressed
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@nofire:
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pha
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jsr PREAD ; Read first paddle value
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pla
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cpy #127-OFFS
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bcc @left
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cpy #127+OFFS
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bcc @nextpaddle
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ora #JOY_RIGHT
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.byte $2c
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@left: ora #JOY_LEFT
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@nextpaddle:
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inx
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pha
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jsr PREAD
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pla
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cpy #127-OFFS
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bcc @up
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cpy #127+OFFS
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bcc @done
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ora #JOY_DOWN
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.byte $2c
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@up: ora #JOY_UP
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@done: ldx #0 ; fix X
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rts
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@ -105,3 +105,5 @@ XDRAW = $F65D ; Draws a shape by inverting the existing
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SETHCOL = $F6EC ; Set the hi-res color to (X), where (X)
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; must be between 0 and 7.
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PREAD = $FB1E ; Read paddle in X, return AD conv. value in Y
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14
libsrc/apple2/joy_stddrv.s
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14
libsrc/apple2/joy_stddrv.s
Normal file
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;
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; Name of the standard joystick driver
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;
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; Ullrich von Bassewitz, 2002-12-21
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;
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; const char joy_stddrv[];
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;
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.export _joy_stddrv
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.rodata
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_joy_stddrv: .asciiz "apple2-stdjoy.joy"
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