godzil/sd2snes
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

12F629

Browse Source
This commit is contained in:
Maximilian Rehkopf 2010-03-15 21:41:37 +01:00
parent 45002f618e
commit 00800dbaba
2 changed files with 39 additions and 41 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
cic/mangle.c
View File

@ -58,26 +58,23 @@ void mangle(unsigned char* data) {
offset &= 0xf;
a=x;
a+=0xf;
CARRY
CARRY;
} while(carry);
}
int main(void) {
unsigned char restart=1;
unsigned char keyseed_orig[16]= {0x0, // dummy
unsigned char keyseed[16]= {0x0, // dummy
0xb,0x1,0x4,0xf,
0x4,0xb,0x5,0x7,
0xf,0xd,0x6,0x1,
0xe,0x9,0x8};
unsigned char lockseed_orig[16]={0x0, // dummy
unsigned char lockseed[16]={0x0, // dummy
0x0,0x9,0xa,0x1,
0x8,0x5,0xf,0x1,
0x1,0xe,0x1,0x0,
0xd,0xe,0xc};
unsigned char keyseed[16];
unsigned char lockseed[16];
printseed(keyseed);
printseed(lockseed);
printf("\n");
@ -85,6 +82,7 @@ int main(void) {
while(1) {
printf("\n");
printstream(keyseed, restart);
printstream(lockseed, restart);
mangle(keyseed);
mangle(keyseed);
mangle(keyseed);
@ -94,8 +92,8 @@ while(1) {
// printseed(keyseed);
// printseed(lockseed);
restart=lockseed[3];
lockseed[3]=lockseed[7];
restart=lockseed[7];
// lockseed[3]=lockseed[7];
if(!restart)restart=1;
// printf("send %d-15\n", restart);
}

66
cic/snescic-key.asm
View File

@ -1,8 +1,8 @@
#include <p12f683.inc>
processor p12f683
#include <p12f629.inc>
processor p12f629
; -----------------------------------------------------------------------
__CONFIG _EC_OSC & _WDT_OFF & _PWRTE_OFF & _MCLRE_OFF & _CP_OFF & _CPD_OFF & _BOD_ON & _IESO_ON & _FCMEN_ON
__CONFIG _EC_OSC & _WDT_OFF & _PWRTE_OFF & _MCLRE_OFF & _CP_OFF & _CPD_OFF
; -----------------------------------------------------------------------
; code memory
@ -29,15 +29,14 @@ init
org 0x0010
banksel GPIO
clrf GPIO
movlw 0x17 ; GPIO4, GPIO2, GPIO1, GPIO0 are digital I/O
movwf CMCON0
movlw 0x07 ; GPIO2..0 are digital I/O (not connected to comparator)
movwf CMCON
movlw 0x90 ; Enable interrupts + enable INT
movwf INTCON
banksel ANSEL
clrf ANSEL
banksel TRISIO
movlw 0x2e ; in out in in in out
movwf TRISIO
movlw 0x80 ; 0x3f for pullups
movlw 0x80 ; 0x00 for pullups
movwf OPTION_REG
banksel GPIO
bsf GPIO, 0x0
@ -50,7 +49,6 @@ main
bsf TRISIO, 1
bcf TRISIO, 0
banksel GPIO
; sleep
;--------INIT KEY SEED--------
movlw 0xb
movwf 0x21
@ -287,31 +285,31 @@ mangle_key_withoutskip
movf 0x28, w ;
addlw 0x1 ;inc
addwf 0x29, f ;add to 28
addwf 0x29, f ;add to 29
movf 0x29, w ;
addlw 0x1 ;inc
addwf 0x2a, f ;add to 28
addwf 0x2a, f ;add to 2a
movf 0x2a, w ;
addlw 0x1 ;inc
addwf 0x2b, f ;add to 28
addwf 0x2b, f ;add to 2b
movf 0x2b, w ;
addlw 0x1 ;inc
addwf 0x2c, f ;add to 28
addwf 0x2c, f ;add to 2c
movf 0x2c, w ;
addlw 0x1 ;inc
addwf 0x2d, f ;add to 28
addwf 0x2d, f ;add to 2d
movf 0x2d, w ;
addlw 0x1 ;inc
addwf 0x2e, f ;add to 28
addwf 0x2e, f ;add to 2e
movf 0x2e, w ;
addlw 0x1 ;inc
addwf 0x2f, f ;add to 28
addwf 0x2f, f ;add to 2f
;60
movf 0x20, w ;restore original 0xf
andlw 0xf
@ -331,17 +329,18 @@ mangle_key_withoutskip
nop
goto mangle_key_loop
; 69 when goto, 69 when return
; CIC has 78
; CIC has 78 -> 9 nops
mangle_key_withskip
movf 0x41, w ;restore 23
addwf 0x23, f ;add to 23
movf 0x24, w
movwf 0x40 ;save 25 to 40
movwf 0x40 ;save 24 to 40
movf 0x23, w
addwf 0x24, f
movf 0x25, w
movwf 0x41 ;save 26 to 41
movf 0x40, w ;restore 25
movwf 0x41 ;save 25 to 41
movf 0x40, w ;restore 24
andlw 0xf ;mask nibble
addlw 0x8 ;add #8 to HIGH nibble
movwf 0x40
@ -349,13 +348,13 @@ mangle_key_withskip
addwf 0x25, w
movwf 0x25
movf 0x41, w ;restore 26
movf 0x41, w ;restore 25
addlw 0x1 ;inc
addwf 0x26, f ;add to 27
addwf 0x26, f ;add to 26
movf 0x26, w ;
addlw 0x1 ;inc
addwf 0x27, f ;add to 28
addwf 0x27, f ;add to 27
movf 0x27, w ;
addlw 0x1 ;inc
@ -363,31 +362,31 @@ mangle_key_withskip
movf 0x28, w ;
addlw 0x1 ;inc
addwf 0x29, f ;add to 28
addwf 0x29, f ;add to 29
movf 0x29, w ;
addlw 0x1 ;inc
addwf 0x2a, f ;add to 28
addwf 0x2a, f ;add to 2a
movf 0x2a, w ;
addlw 0x1 ;inc
addwf 0x2b, f ;add to 28
addwf 0x2b, f ;add to 2b
movf 0x2b, w ;
addlw 0x1 ;inc
addwf 0x2c, f ;add to 28
addwf 0x2c, f ;add to 2c
movf 0x2c, w ;
addlw 0x1 ;inc
addwf 0x2d, f ;add to 28
addwf 0x2d, f ;add to 2d
movf 0x2d, w ;
addlw 0x1 ;inc
addwf 0x2e, f ;add to 28
addwf 0x2e, f ;add to 2e
movf 0x2e, w ;
addlw 0x1 ;inc
addwf 0x2f, f ;add to 28
addwf 0x2f, f ;add to 2f
;64
movf 0x20, w ;restore original 0xf
andlw 0xf
@ -411,7 +410,7 @@ mangle_key_withskip
mangle_return
return
;73 when goto, 73 when return
;CIC has 84
;CIC has 84 -> 11 nops
mangle_lock
movf 0x3f, w
@ -506,7 +505,7 @@ mangle_lock_withoutskip
nop
goto mangle_lock_loop
; 69 when goto, 69 when return
; CIC has 78
; CIC has 78 -> 9 nops
mangle_lock_withskip
movf 0x41, w ;restore 33
@ -585,7 +584,7 @@ mangle_lock_withskip
nop
goto mangle_lock_loop
;73 when goto, 73 when return
;CIC has 84
;CIC has 84 -> 11 nops
;--------wait: 3*(W-1)+7 cycles (including call+return). W=0 -> 256!--------
wait
@ -638,6 +637,7 @@ die_intloop
bsf INTCON, GIE
banksel GPIO
;--------forever: blink status pin--------
die_blink
clrw
call longwait