+static unsigned char iram_context_map[] =
+{
+ 0, 0, 0, 0, 1, 0, 0, 0, // 04
+ 0, 0, 0, 0, 0, 0, 2, 0, // 0e
+ 0, 0, 0, 0, 0, 3, 0, 4, // 15 17
+ 5, 0, 0, 6, 0, 7, 0, 0, // 18 1b 1d
+ 8, 9, 0, 0, 0,10, 0, 0, // 20 21 25
+ 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0,11, 0, 0,12, 0, 0, // 32 35
+ 13,14, 0, 0, 0, 0, 0, 0 // 38 39
+};
+
+static unsigned int checksums[] =
+{
+ 0,
+ 0xfa9ddfb2,
+ 0x229c80b6,
+ 0x3af0c3d3,
+ 0x98fc4552,
+ 0x5ecacdbc,
+ 0xa6931962,
+ 0x53930b10,
+ 0x69524552,
+ 0xcb1ccdaf,
+ 0x995068c7,
+ 0x48b97f4d,
+ 0xe8c61b74,
+ 0xafa2e81a,
+ 0x4e3e071a
+};
+
+
+static int get_iram_context(void)
+{
+ unsigned char *ir = (unsigned char *)svp->iram_rom;
+ int val1, val = ir[0x083^1] + ir[0x4FA^1] + ir[0x5F7^1] + ir[0x47B^1];
+ int crc = chksum_crc32(svp->iram_rom, 0x800);
+ val1 = iram_context_map[(val>>1)&0x3f];
+
+ if (crc != checksums[val1]) {
+ printf("val: %02x PC=%04x\n", (val>>1)&0x3f, rPC);
+ elprintf(EL_ANOMALY, "bad crc: %08x vs %08x", crc, checksums[val1]);
+ //debug_dump2file(name, svp->iram_rom, 0x800);
+ exit(1);
+ }
+ elprintf(EL_ANOMALY, "iram_context: %02i", val1);
+ return val1;
+}
+