First few nes files by groepaz

git-svn-id: svn://svn.cc65.org/cc65/trunk@2056 b7a2c559-68d2-44c3-8de9-860c34a00d81
2003-04-14 21:28:51 +00:00
parent 442df28524
commit 63b0537eb7
6 changed files with 403 additions and 8 deletions
--- a/libsrc/nes/nes.inc
+++ b/libsrc/nes/nes.inc
@@ -0,0 +1,93 @@
+;
+; NES definitions. By Groepaz/Hitmem.
+;
+
+
+;; FIXME: optimize zeropage usage
+
+SCREEN_PTR	= $62           ;2
+CRAM_PTR        = $64           ;2
+CHARCOLOR	= $66
+BGCOLOR		= $67
+RVS		= $68
+CURS_X		= $69
+CURS_Y		= $6a
+
+_tickcount      = $6b           ;2
+
+VBLANK_FLAG	= $70
+
+ringbuff        = $0200
+ringwrite       = $71
+ringread        = $72
+ringcount       = $73
+
+ppuhi           = $74
+ppulo           = $75
+ppuval          = $76
+
+screenrows 	= (32-4)
+charsperline    = 32
+xsize           = charsperline
+
+;; PPU defines
+
+PPU_CTRL1      	= $2000
+PPU_CTRL2	= $2001
+PPU_STATUS	= $2002
+PPU_SPR_ADDR	= $2003
+PPU_SPR_IO  	= $2004
+PPU_VRAM_ADDR1	= $2005
+PPU_VRAM_ADDR2	= $2006
+PPU_VRAM_IO	= $2007
+
+;; APU defines
+
+APU_PULSE1CTRL  = $4000         ; Pulse #1 Control Register (W)
+APU_PULSE1RAMP  = $4001         ; Pulse #1 Ramp Control Register (W)
+APU_PULSE1FTUNE = $4002         ; Pulse #1 Fine Tune (FT) Register (W)
+APU_PULSE1CTUNE = $4003         ; Pulse #1 Coarse Tune (CT) Register (W)
+APU_PULSE2CTRL  = $4004         ; Pulse #2 Control Register (W)
+APU_PULSE2RAMP  = $4005         ; Pulse #2 Ramp Control Register (W)
+APU_PULSE2FTUNE = $4006         ; Pulse #2 Fine Tune Register (W)
+APU_PULSE2STUNE = $4007         ; Pulse #2 Coarse Tune Register (W)
+APU_TRICTRL1    = $4008         ; Triangle Control Register #1 (W)
+APU_TRICTRL2    = $4009         ; Triangle Control Register #2 (?)
+APU_TRIFREQ1    = $400A         ; Triangle Frequency Register #1 (W)
+APU_TRIFREQ2    = $400B         ; Triangle Frequency Register #2 (W)
+APU_NOISECTRL   = $400C         ; Noise Control Register #1 (W)
+;;APU_ = $400D  ; Unused (???)
+APU_NOISEFREQ1  = $400E         ; Noise Frequency Register #1 (W)
+APU_NOISEFREQ2  = $400F         ; Noise Frequency Register #2 (W)
+APU_MODCTRL     = $4010         ; Delta Modulation Control Register (W)
+APU_MODDA       = $4011         ; Delta Modulation D/A Register (W)
+APU_MODADDR     = $4012         ; Delta Modulation Address Register (W)
+APU_MODLEN      = $4013         ; Delta Modulation Data Length Register (W)
+APU_SPR_DMA    	= $4014         ; Sprite DMA Register (W)
+APU_CHANCTRL   	= $4015         ; Sound/Vertical Clock Signal Register (R)
+APU_PAD1       	= $4016         ; Joypad #1 (RW)
+APU_PAD2	= $4017         ; Joypad #2/SOFTCLK (RW)
+
+
+CH_HLINE    	= 11
+CH_VLINE    	= 14
+CH_ULCORNER 	= 176
+CH_URCORNER 	= 174
+CH_LLCORNER 	= 173
+CH_LRCORNER 	= 189
+CH_TTEE	    	= 178
+CH_RTEE	    	= 179
+CH_BTEE	    	= 177
+CH_LTEE	    	= 171
+CH_CROSS    	= 123
+CH_CURS_UP     	= 145
+CH_CURS_DOWN	= 17
+CH_CURS_LEFT	= 157
+CH_CURS_RIGHT	= 29
+CH_PI		= 126
+CH_DEL		= 20
+CH_INS		= 148
+CH_ENTER        = 10
+CH_STOP         = 3
+CH_ESC          = 27
+