mirror of
https://github.com/fail0verflow/hbc.git
synced 2024-09-30 02:08:38 +02:00
138 lines
2.4 KiB
C
138 lines
2.4 KiB
C
#include <string.h>
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#include <ogc/machine/processor.h>
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#include "panic.h"
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// steal from libogc
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extern unsigned char console_font_8x16[];
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#define BLACK 0x00800080
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#define RED 0x4C544CFF
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static vu32 *fb;
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static void pchar(u32 cx, u32 cy, char c)
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{
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int x,y;
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unsigned char *p = &console_font_8x16[16*c];
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for (y=0; y<16; y++) {
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char v = *p++;
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for (x=0; x<4; x++) {
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u32 c = RED;
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switch (v&0xc0) {
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case 0x00:
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c = BLACK;
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break;
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case 0x40:
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c = (RED & 0x0000FF00) | (BLACK & 0xFFFF00FF);
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break;
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case 0x80:
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c = (RED & 0xFFFF00FF) | (BLACK & 0x0000FF00);
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break;
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case 0xc0:
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c = RED;
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break;
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}
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fb[320*(cy+y)+cx+x] = c;
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v<<=2;
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}
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}
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}
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static void putsc(u32 y, char *s) {
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u32 x = (320-strlen(s)*4)/2;
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while(*s) {
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pchar(x, y, *s++);
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x += 4;
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}
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}
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static void hex(u32 v, char *p) {
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int i;
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for (i=0; i<8; i++) {
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if ((v>>28) >= 10)
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*p++ = 'A' + (v>>28) - 10;
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else
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*p++ = '0' + (v>>28);
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v <<= 4;
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}
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}
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#define HW_REG_BASE 0xd800000
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#define HW_RESETS (HW_REG_BASE + 0x194)
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// written to be as generic and reliable as possible
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void _panic(u32 file, u32 line)
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{
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u32 level;
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u32 fbr;
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int count = 30;
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int x,y;
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u32 bcolor = BLACK;
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u16 vtr;
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int lines;
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char guru[] = "Guru Meditation #00000000.00000000";
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_CPU_ISR_Disable(level);
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fbr = read32(0xc00201c) & 0x1fffffff;
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if (fbr&0x10000000)
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fbr <<= 5;
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fb = (vu32*)(fbr | 0xC0000000);
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vtr = read16(0xc002000);
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if ((vtr & 0xf) > 10)
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lines = vtr >> 4;
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else
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lines = 2 * (vtr >> 4);
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for(y=(lines-1); y>=116; y--)
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for(x=0; x<320; x++)
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fb[y*320+x] = fb[(y-116)*320+x];
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for(y=0; y<116; y++)
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for(x=0; x<320; x++)
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fb[y*320+x] = BLACK;
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hex(file, &guru[17]);
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hex(line, &guru[26]);
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putsc(42, "Software Failure. Press reset button to continue.");
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putsc(62, guru);
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// wait for reset button
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while(read32(0xcc003000)&0x10000) {
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// blink
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if (count >= 25) {
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if (bcolor == RED)
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bcolor = BLACK;
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else
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bcolor = RED;
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for(y=28; y<34; y++)
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for(x=14; x<306; x++)
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fb[y*320+x] = bcolor;
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for(y=34; y<84; y++) {
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for(x=14; x<17; x++)
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fb[y*320+x] = bcolor;
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for(x=303; x<306; x++)
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fb[y*320+x] = bcolor;
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}
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for(y=84; y<90; y++)
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for(x=14; x<306; x++)
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fb[y*320+x] = bcolor;
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count = 0;
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}
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// hacky waitvsync
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while(read16(0xc00202c) >= 200);
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while(read16(0xc00202c) < 200);
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count++;
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}
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// needs AHBPROT, is evil. so sue me.
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write32(HW_RESETS, read32(HW_RESETS)&(~1));
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while(1);
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}
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