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subproject: IGR

ikari 13 years ago
parent
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221c165aef
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  1. 339 0
      misc/igr/COPYING
  2. 323 0
      misc/igr/snes-igr.asm
  3. 27 0
      misc/igr/snes-igr.hex

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misc/igr/COPYING

@@ -0,0 +1,339 @@
+		    GNU GENERAL PUBLIC LICENSE
+		       Version 2, June 1991
+
+ Copyright (C) 1989, 1991 Free Software Foundation, Inc.,
+ 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+			    Preamble
+
+  The licenses for most software are designed to take away your
+freedom to share and change it.  By contrast, the GNU General Public
+License is intended to guarantee your freedom to share and change free
+software--to make sure the software is free for all its users.  This
+General Public License applies to most of the Free Software
+Foundation's software and to any other program whose authors commit to
+using it.  (Some other Free Software Foundation software is covered by
+the GNU Lesser General Public License instead.)  You can apply it to
+your programs, too.
+
+  When we speak of free software, we are referring to freedom, not
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+
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+
+  We protect your rights with two steps: (1) copyright the software, and
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+
+  Also, for each author's protection and ours, we want to make certain
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+  The precise terms and conditions for copying, distribution and
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+
+		    GNU GENERAL PUBLIC LICENSE
+   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
+
+  0. This License applies to any program or other work which contains
+a notice placed by the copyright holder saying it may be distributed
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+
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+
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+
+			    NO WARRANTY
+
+  11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
+FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW.  EXCEPT WHEN
+OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
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+
+		     END OF TERMS AND CONDITIONS
+
+	    How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
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+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
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+    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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+If the program is interactive, make it output a short notice like this
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+
+    Gnomovision version 69, Copyright (C) year name of author
+    Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, the commands you use may
+be called something other than `show w' and `show c'; they could even be
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+
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+
+  Yoyodyne, Inc., hereby disclaims all copyright interest in the program
+  `Gnomovision' (which makes passes at compilers) written by James Hacker.
+
+  <signature of Ty Coon>, 1 April 1989
+  Ty Coon, President of Vice
+
+This General Public License does not permit incorporating your program into
+proprietary programs.  If your program is a subroutine library, you may
+consider it more useful to permit linking proprietary applications with the
+library.  If this is what you want to do, use the GNU Lesser General
+Public License instead of this License.

+ 323 - 0
misc/igr/snes-igr.asm

@@ -0,0 +1,323 @@
+    #include <p16f630.inc>
+
+; -----------------------------------------------------------------------
+;   SNES "In-game reset" (IGR) controller
+;
+;   Copyright (C) 2010 by Maximilian Rehkopf <otakon@gmx.net>
+;
+;   This program is free software; you can redistribute it and/or modify
+;   it under the terms of the GNU General Public License as published by
+;   the Free Software Foundation; version 2 of the License only.
+;
+;   This program is distributed in the hope that it will be useful,
+;   but WITHOUT ANY WARRANTY; without even the implied warranty of
+;   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;   GNU General Public License for more details.
+;
+;   You should have received a copy of the GNU General Public License
+;   along with this program; if not, write to the Free Software
+;   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+;
+; -----------------------------------------------------------------------
+;
+;   This program is designed to run on a PIC 16F630 microcontroller connected
+;   to the controller port and SNES main board. It allows an SNES to be reset
+;   and region switched via a standard controller.
+;
+;   pin configuration: (controller port pin) [other connection]
+;                                              ,-----_-----.
+;                                      +5V (1) |1        14| GND (7)
+;   Reset out [to CIC pin 8 / SuperCIC pin 13] |2  A5 A0 13| serial data in(4)
+;                        50/60Hz out [to PPUs] |3  A4 A1 12| latch in(3)
+;            50/60Hz in [from SuperCIC pin 12] |4  A3 A2 11| clk in(2)
+;                                LED out - grn |5  C5 C0 10| LED in - grn [from SuperCIC pin 5]
+;                                LED out - red |6  C4 C1  9| LED in - red [from SuperCIC pin 6]
+;                                  LED_TYPE in |7  C3 C2  8| SuperCIC present
+;                                              `-----------'
+;
+;   Pin 4 should be connected to SuperCIC pin 12 if a SuperCIC is used.
+;
+;   Pin 7 (LED_TYPE) sets the output mode for the LED pins
+;   (must be tied to either level):
+;      low  = common cathode
+;      high = common anode   (output inverted)
+;
+;   Pin 8 should be connected as follows:
+;      low = no SuperCIC present
+;      high = SuperCIC present
+;
+;   controller pin numbering
+;   ========================
+;        _______________________________
+;       |                 |             \
+;       | (1) (2) (3) (4) | (5) (6) (7)  )
+;       |_________________|_____________/
+;
+;
+;   key mapping: L + R + Select +                               (stream data)
+;   =============================
+;   Start       Reset (normal)                                  0xcf 0xcf
+;   X           Reset (6s)                                      0xdf 0x8f
+;
+;   Y           Region 50Hz/PAL                                 0x9f 0xcf
+;   A           Region 60Hz/NTSC                                0xdf 0x4f
+;   B           Region from SuperCIC (SuperCIC only)            0x5f 0xcf
+;
+;   functional description:
+;   =======================
+;   Reset (normal):      simply resets the console.
+;   Reset (6s):          resets the console for >5s to enter main menu on
+;                        PowerPak and sd2snes.
+;
+;   Region 50Hz/PAL      overrides the region to 50Hz/PAL.
+;   Region 60Hz/NTSC     overrides the region to 60Hz/NTSC.
+;   Region from SuperCIC sets the region according to the input level of
+;                        pin 4 (+5V = 50Hz, 0V = 60Hz). In this mode the
+;                        region is updated constantly.
+;                        This function is only available in SuperCIC mode
+;                        (pin 8 = 5V).
+;
+; -----------------------------------------------------------------------
+; Configuration bits: adapt to your setup and needs
+    __CONFIG _INTRC_OSC_NOCLKOUT & _WDT_OFF & _PWRTE_OFF & _MCLRE_OFF & _BODEN & _CP_OFF & _CPD_OFF
+
+; -----------------------------------------------------------------------
+; relocatable code
+PROG CODE
+start
+        banksel PORTA
+        clrf    PORTA
+        movlw   0x07            ; PORTA2..0 are digital I/O (not connected to comparator)
+        movwf   CMCON
+        movlw   0x00            ; disable all interrupts
+        movwf   INTCON
+        banksel TRISA
+        movlw   0x2f            ; in out in in in in
+        movwf   TRISA
+        movlw   0x0f            ; out out in in in in
+        movwf   TRISC
+        movlw   0x00            ; no pullups
+        movwf   WPUA
+        movlw   0x80            ; global pullup disable
+        movwf   OPTION_REG
+	banksel	PORTA
+	bsf	PORTA, 5
+
+;	tits	GTFO
+
+	clrf	0x24
+	btfsc	PORTC, 2
+	bsf	0x24, 1
+
+	clrf	0x23
+	btfss	0x24, 1		; SuperCIC present?
+	bsf	0x23, 1		; then enable passthru
+
+	goto	doregion_60	; set defaults
+
+waitforlatch_h	; wait for "latch" to become high 
+	btfss	PORTA, 1
+	goto	waitforlatch_h
+
+
+waitforlatch_l	; wait for "latch" to become low
+	btfsc	PORTA, 1
+	goto	waitforlatch_l
+
+
+	clrf	0x20
+	clrf	0x21
+	clrf	0x22
+	bcf	STATUS, C	; clear carry
+dl1
+	movf	PORTA, w		;read data bit
+	rlf	0x20, f		;shift
+	andlw	0x1	
+	iorwf	0x20, f		;put in data reg
+	incf	0x22, f		;inc bit count
+dl1_wait
+	btfss	PORTA, 2		;wait for clk=h
+	goto	dl1_wait
+	btfss	0x22, 3		;first byte done?
+	goto	dl1
+	bcf	STATUS, C	; clear carry
+dl2
+	movf	PORTA, w		;read data bit
+	rlf	0x21, f		;shift
+	andlw	0x1	
+	iorwf	0x21, f		;put in data reg
+	incf	0x22, f		;inc bit count
+dl2_wait
+	btfss	PORTA, 2		;wait for clk=h
+	goto	dl2_wait
+	btfss	0x22, 4
+	goto	dl2
+
+; check region passthru
+	btfss	0x23, 1		; passthru enabled?
+	goto	checkkeys	; 
+	btfsc	PORTA, 3
+	bsf	PORTA, 4
+	btfss	PORTA, 3
+	bcf	PORTA, 4
+	call	setleds_passthru
+	
+
+checkkeys
+; we now have the first 8 bits in 0x20 and the second 8 bits in 0x21
+	; 00011111 00011111 = ABXY, Select, L
+	movlw	0x4f
+	xorwf	0x21, w
+	btfsc	STATUS, Z
+	goto	group4f
+	movlw	0x8f
+	xorwf	0x21, w
+	btfsc	STATUS, Z
+	goto	group8f
+	movlw	0xcf
+	xorwf	0x21, w
+	btfsc	STATUS, Z
+	goto	groupcf
+	goto	waitforlatch_h
+
+group4f
+	movlw	0xdf
+	xorwf	0x20, w
+	btfss	STATUS, Z
+	goto	waitforlatch_h
+	goto	doregion_60
+
+group8f
+	movlw	0xdf
+	xorwf	0x20, w
+	btfss	STATUS, Z
+	goto	waitforlatch_h
+	btfss	0x24, 1		; SuperCIC absent?
+	goto	doreset_long	; then do long reset
+	goto	doreset_dbl	; else do dbl reset
+
+groupcf
+	movlw	0x5f
+	xorwf	0x20, w
+	btfsc	STATUS, Z
+	goto	doregion_passthru
+	movlw	0x9f
+	xorwf	0x20, w
+	btfsc	STATUS, Z
+	goto	doregion_50
+	movlw	0xcf
+	xorwf	0x20, w
+	btfsc	STATUS, Z
+	goto	doreset_normal
+	goto	waitforlatch_h
+
+doreset_normal
+	banksel	TRISA
+	bcf	TRISA, 5
+	banksel	PORTA
+	bsf	PORTA, 5
+	movlw	0x15
+	call	longwait
+	banksel TRISA
+	bsf	TRISA, 5
+	banksel	PORTA
+	goto	waitforlatch_h
+
+doreset_dbl
+	banksel	TRISA
+	bcf	TRISA, 5
+	banksel	PORTA
+	bsf	PORTA, 5
+	movlw	0x15
+	call	longwait
+	banksel	TRISA
+	bsf	TRISA, 5
+	clrw
+	call	longwait
+	bcf	TRISA, 5
+	movlw	0x15
+	call	longwait
+	banksel	TRISA
+	bsf	TRISA, 5
+	banksel	PORTA
+	goto	waitforlatch_h
+
+doreset_long
+	banksel	TRISA
+	bcf	TRISA, 5
+	banksel	PORTA
+	bsf	PORTA, 5
+	movlw	0x1e
+	call	superlongwait
+	banksel	TRISA
+	bsf	TRISA, 5
+	banksel	PORTA
+	goto	waitforlatch_h
+
+doregion_50
+	bsf	PORTA, 4
+	clrf	0x23
+	call	setleds_own
+	goto	waitforlatch_h
+
+doregion_60
+	bcf	PORTA, 4
+	clrf	0x23
+	call	setleds_own
+	goto	waitforlatch_h
+
+doregion_passthru
+	clrf	0x23
+	btfsc	0x24, 1		; SuperCIC present?
+	bsf	0x23, 1		; then enable passthru
+	goto	waitforlatch_h
+
+; --------wait: 3*(W-1)+7 cycles (including call+return). W=0 -> 256!--------
+wait
+        movwf   0x2f
+wait0   decfsz  0x2f, f
+        goto    wait0
+        goto	longwait1
+
+; --------wait long: 8+(3*(w-1))+(772*w). W=0 -> 256!--------
+longwait
+        movwf   0x2e
+        clrw
+longwait0
+        goto	wait
+longwait1
+        decfsz  0x2e, f
+        goto    longwait0
+        return
+
+; --------wait extra long: 8+(3*(w-1))+(198405*w).
+superlongwait
+	movwf	0x2d
+	clrw
+superlongwait0
+	call	longwait
+	decfsz	0x2d, f
+	goto	superlongwait0
+	return
+
+setleds
+	btfss	0x24, 1
+	goto	setleds_own
+setleds_passthru
+	clrw
+	btfsc	PORTC, 0	; green LED	
+	iorlw	0x20
+	btfsc	PORTC, 1	; red LED
+	iorlw	0x10
+	movwf	PORTC
+	return
+
+setleds_own
+	movlw	0x20		; assume green LED
+	btfss	PORTA, 4
+	movlw	0x10		; if PORTA.4 is low -> red LED
+	btfsc	PORTC, 3	; if common anode:
+	xorlw	0x30		; invert output
+	movwf	PORTC	
+	return
+END

+ 27 - 0
misc/igr/snes-igr.hex

@@ -0,0 +1,27 @@
+:020000040000FA
+:100000008312031385010730990000308B0083169B
+:1000100003132F3085000F308700003095008030AB
+:100020008100831203138516A4010719A414A301E8
+:10003000A418A314851C1A2885181C28A001A10146
+:10004000A20103100508A00D0139A004A20A051D94
+:100050002728A21D222803100508A10D0139A1049B
+:10006000A20A051D3128221E2C28A31C3C28851914
+:100070000516851D0512B2204F30210603194928A7
+:100080008F30210603194E28CF3021060319552839
+:100090001A28DF302006031D1A289828DF30200692
+:1000A000031D1A28A41C862870285F302006031917
+:1000B0009C289F30200603199428CF30200603196E
+:1000C00062281A28831603138512831203138516D8
+:1000D0001530A420831603138516831203131A28E0
+:1000E0008316031385128312031385161530A4207B
+:1000F0008316031385160301A42085121530A4204E
+:10010000831603138516831203131A288316031309
+:1001100085128312031385161E30AA20831603133B
+:100120008516831203131A280516A301B9201A286D
+:100130000512A301B9201A28A301A418A3141A2890
+:10014000AF00AF0BA128A728AE000301A028AE0B7B
+:10015000A6280800AD000301A420AD0BAC280800C0
+:10016000A41CB92803010718203887181038870005
+:1001700008002030051E10308719303A870008002B
+:02400E00D43F9D
+:00000001FF