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Added nes-stdjoy.s from Stefan Haubenthal
git-svn-id: svn://svn.cc65.org/cc65/trunk@3267 b7a2c559-68d2-44c3-8de9-860c34a00d81
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@ -26,45 +26,76 @@ CFLAGS = -Osir -g -T -t $(SYS) --forget-inc-paths -I . -I ../../include
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%.o: %.s
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@$(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 $@ $^
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%.mou: %.o ../runtime/zeropage.o
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@$(LD) -t module -o $@ $^
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%.ser: %.o ../runtime/zeropage.o
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@$(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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C_OBJS =
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OBJS = _scrsize.o \
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cclear.o \
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chline.o \
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clock.o \
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clrscr.o \
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color.o \
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cputc.o \
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crt0.o \
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ctype.o \
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cvline.o \
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getenv.o \
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gotox.o \
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gotoxy.o \
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gotoy.o \
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mainargs.o \
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ppu.o \
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ppubuf.o \
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randomize.o \
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revers.o \
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setcursor.o \
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sysuname.o \
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waitvblank.o \
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wherex.o \
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wherey.o
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S_OBJS = _scrsize.o \
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cclear.o \
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chline.o \
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clock.o \
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clrscr.o \
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color.o \
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cputc.o \
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crt0.o \
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ctype.o \
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cvline.o \
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getenv.o \
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gotox.o \
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gotoxy.o \
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gotoy.o \
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mainargs.o \
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ppu.o \
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ppubuf.o \
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randomize.o \
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revers.o \
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setcursor.o \
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sysuname.o \
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waitvblank.o \
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wherex.o \
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wherey.o
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#--------------------------------------------------------------------------
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# Drivers
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EMDS =
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JOYS = nes-stdjoy.joy
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MOUS =
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SERS =
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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: $(C_OBJS) $(S_OBJS)
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all: $(OBJS) $(EMDS) $(JOYS) $(MOUS) $(SERS) $(TGIS)
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../runtime/zeropage.o:
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$(MAKE) -C $(dir $@) $(notdir $@)
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clean:
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@$(RM) $(C_OBJS:.c=.s) $(C_OBJS) $(S_OBJS)
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@$(RM) $(OBJS) $(EMDS:.emd=.o) $(JOYS:.joy=.o) $(MOUS:.mou=.o) $(SERS:.ser=.o) $(TGIS:.tgi=.o)
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zap: clean
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@$(RM) $(EMDS) $(JOYS) $(MOUS) $(SERS) $(TGIS)
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111
libsrc/nes/nes-stdjoy.s
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111
libsrc/nes/nes-stdjoy.s
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@ -0,0 +1,111 @@
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;
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; Standard joypad driver for the NES. 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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; Stefan Haubenthal, 2004-10-05
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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 "nes.inc"
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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 JOY_API_VERSION ; Driver API version number
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; Button state masks (8 values)
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.byte $08 ; JOY_UP
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.byte $04 ; JOY_DOWN
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.byte $02 ; JOY_LEFT
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.byte $01 ; JOY_RIGHT
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.byte $80 ; JOY_FIRE (A)
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.byte $40 ; JOY_FIRE2 (B)
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.byte $20 ; JOY_FIRE3 (Select)
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.byte $10 ; JOY_FIRE4 (Start)
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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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.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 #0
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; rts ; Run into UNINSTALL 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 #0
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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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tay ; Joystick number (0,1) into Y
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; Read joystick
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lda #1
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sta APU_PAD1,y
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lda #0
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sta APU_PAD1,y
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sta tmp1
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ldx #8
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@L1: asl tmp1
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lda APU_PAD1,y
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and #$01
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beq @L2
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lda tmp1
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ora #$01
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sta tmp1
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@L2: dex
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bne @L1
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lda tmp1
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; ldx #$00 ; fix X
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rts
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