diff --git a/include/libleo/internal.h b/include/libleo/internal.h index 814f69a..7997020 100644 --- a/include/libleo/internal.h +++ b/include/libleo/internal.h @@ -184,7 +184,13 @@ extern void leomain(void*); extern void leoRead_common(u32 offset); extern void leoClrUA_MEDIUM_CHANGED(void); extern void leoSetUA_MEDIUM_CHANGED(void); -extern int leoC2_Correction(void); +extern s32 leoC2_Correction(void); +extern void leoC2_single_ecc(void); +extern void leoC2_double_ecc(void); +extern void leoC2_3_ecc(void); +extern void leoC2_4_ecc(void); +extern s32 leoAlpha_mult(s32 i, s32 k); +extern s32 leoAlpha_div(s32 i, s32 k); extern s32 leoVerifyRTC(u8 yearhi, u8 yearlo); extern u8 __locReadTimer(__LOCTime* time); extern u8 __locSetTimer(__LOCTime* time); diff --git a/splat.yaml b/splat.yaml index cdf5301..100b3da 100644 --- a/splat.yaml +++ b/splat.yaml @@ -387,8 +387,7 @@ segments: - [0x7E6F0, rodata, rom_rodata_7E6F0] - [0x7E700, .rodata, libleo/leomecha] - [0x7E770, .rodata, libleo/leo_tbl] - - [0x7E950, rodata, rom_rodata_7E950] - - [0x7ED50, .rodata, libleo/leoc2ecc] + - [0x7E950, .rodata, libleo/leoc2ecc] - [0x7ED70, .rodata, libleo/leomseq_tbl] - [0x7EDF0, .rodata, libleo/leotimer] - [0x7EE10, rodata, rom_rodata_7EE10] diff --git a/src/libleo/leoc2ecc.c b/src/libleo/leoc2ecc.c index f0a3f03..46623a8 100644 --- a/src/libleo/leoc2ecc.c +++ b/src/libleo/leoc2ecc.c @@ -1,40 +1,134 @@ #include #include "libleo/internal.h" -//Tables to add here -extern u8 ganlog[512]; -extern u8 glog[512]; +const u8 ganlog[512] = { + 0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80, 0x1D, 0x3A, 0x74, + 0xE8, 0xCD, 0x87, 0x13, 0x26, 0x4C, 0x98, 0x2D, 0x5A, 0xB4, 0x75, + 0xEA, 0xC9, 0x8F, 0x03, 0x06, 0x0C, 0x18, 0x30, 0x60, 0xC0, 0x9D, + 0x27, 0x4E, 0x9C, 0x25, 0x4A, 0x94, 0x35, 0x6A, 0xD4, 0xB5, 0x77, + 0xEE, 0xC1, 0x9F, 0x23, 0x46, 0x8C, 0x05, 0x0A, 0x14, 0x28, 0x50, + 0xA0, 0x5D, 0xBA, 0x69, 0xD2, 0xB9, 0x6F, 0xDE, 0xA1, 0x5F, 0xBE, + 0x61, 0xC2, 0x99, 0x2F, 0x5E, 0xBC, 0x65, 0xCA, 0x89, 0x0F, 0x1E, + 0x3C, 0x78, 0xF0, 0xFD, 0xE7, 0xD3, 0xBB, 0x6B, 0xD6, 0xB1, 0x7F, + 0xFE, 0xE1, 0xDF, 0xA3, 0x5B, 0xB6, 0x71, 0xE2, 0xD9, 0xAF, 0x43, + 0x86, 0x11, 0x22, 0x44, 0x88, 0x0D, 0x1A, 0x34, 0x68, 0xD0, 0xBD, + 0x67, 0xCE, 0x81, 0x1F, 0x3E, 0x7C, 0xF8, 0xED, 0xC7, 0x93, 0x3B, + 0x76, 0xEC, 0xC5, 0x97, 0x33, 0x66, 0xCC, 0x85, 0x17, 0x2E, 0x5C, + 0xB8, 0x6D, 0xDA, 0xA9, 0x4F, 0x9E, 0x21, 0x42, 0x84, 0x15, 0x2A, + 0x54, 0xA8, 0x4D, 0x9A, 0x29, 0x52, 0xA4, 0x55, 0xAA, 0x49, 0x92, + 0x39, 0x72, 0xE4, 0xD5, 0xB7, 0x73, 0xE6, 0xD1, 0xBF, 0x63, 0xC6, + 0x91, 0x3F, 0x7E, 0xFC, 0xE5, 0xD7, 0xB3, 0x7B, 0xF6, 0xF1, 0xFF, + 0xE3, 0xDB, 0xAB, 0x4B, 0x96, 0x31, 0x62, 0xC4, 0x95, 0x37, 0x6E, + 0xDC, 0xA5, 0x57, 0xAE, 0x41, 0x82, 0x19, 0x32, 0x64, 0xC8, 0x8D, + 0x07, 0x0E, 0x1C, 0x38, 0x70, 0xE0, 0xDD, 0xA7, 0x53, 0xA6, 0x51, + 0xA2, 0x59, 0xB2, 0x79, 0xF2, 0xF9, 0xEF, 0xC3, 0x9B, 0x2B, 0x56, + 0xAC, 0x45, 0x8A, 0x09, 0x12, 0x24, 0x48, 0x90, 0x3D, 0x7A, 0xF4, + 0xF5, 0xF7, 0xF3, 0xFB, 0xEB, 0xCB, 0x8B, 0x0B, 0x16, 0x2C, 0x58, + 0xB0, 0x7D, 0xFA, 0xE9, 0xCF, 0x83, 0x1B, 0x36, 0x6C, 0xD8, 0xAD, + 0x47, 0x8E, 0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80, 0x1D, + 0x3A, 0x74, 0xE8, 0xCD, 0x87, 0x13, 0x26, 0x4C, 0x98, 0x2D, 0x5A, + 0xB4, 0x75, 0xEA, 0xC9, 0x8F, 0x03, 0x06, 0x0C, 0x18, 0x30, 0x60, + 0xC0, 0x9D, 0x27, 0x4E, 0x9C, 0x25, 0x4A, 0x94, 0x35, 0x6A, 0xD4, + 0xB5, 0x77, 0xEE, 0xC1, 0x9F, 0x23, 0x46, 0x8C, 0x05, 0x0A, 0x14, + 0x28, 0x50, 0xA0, 0x5D, 0xBA, 0x69, 0xD2, 0xB9, 0x6F, 0xDE, 0xA1, + 0x5F, 0xBE, 0x61, 0xC2, 0x99, 0x2F, 0x5E, 0xBC, 0x65, 0xCA, 0x89, + 0x0F, 0x1E, 0x3C, 0x78, 0xF0, 0xFD, 0xE7, 0xD3, 0xBB, 0x6B, 0xD6, + 0xB1, 0x7F, 0xFE, 0xE1, 0xDF, 0xA3, 0x5B, 0xB6, 0x71, 0xE2, 0xD9, + 0xAF, 0x43, 0x86, 0x11, 0x22, 0x44, 0x88, 0x0D, 0x1A, 0x34, 0x68, + 0xD0, 0xBD, 0x67, 0xCE, 0x81, 0x1F, 0x3E, 0x7C, 0xF8, 0xED, 0xC7, + 0x93, 0x3B, 0x76, 0xEC, 0xC5, 0x97, 0x33, 0x66, 0xCC, 0x85, 0x17, + 0x2E, 0x5C, 0xB8, 0x6D, 0xDA, 0xA9, 0x4F, 0x9E, 0x21, 0x42, 0x84, + 0x15, 0x2A, 0x54, 0xA8, 0x4D, 0x9A, 0x29, 0x52, 0xA4, 0x55, 0xAA, + 0x49, 0x92, 0x39, 0x72, 0xE4, 0xD5, 0xB7, 0x73, 0xE6, 0xD1, 0xBF, + 0x63, 0xC6, 0x91, 0x3F, 0x7E, 0xFC, 0xE5, 0xD7, 0xB3, 0x7B, 0xF6, + 0xF1, 0xFF, 0xE3, 0xDB, 0xAB, 0x4B, 0x96, 0x31, 0x62, 0xC4, 0x95, + 0x37, 0x6E, 0xDC, 0xA5, 0x57, 0xAE, 0x41, 0x82, 0x19, 0x32, 0x64, + 0xC8, 0x8D, 0x07, 0x0E, 0x1C, 0x38, 0x70, 0xE0, 0xDD, 0xA7, 0x53, + 0xA6, 0x51, 0xA2, 0x59, 0xB2, 0x79, 0xF2, 0xF9, 0xEF, 0xC3, 0x9B, + 0x2B, 0x56, 0xAC, 0x45, 0x8A, 0x09, 0x12, 0x24, 0x48, 0x90, 0x3D, + 0x7A, 0xF4, 0xF5, 0xF7, 0xF3, 0xFB, 0xEB, 0xCB, 0x8B, 0x0B, 0x16, + 0x2C, 0x58, 0xB0, 0x7D, 0xFA, 0xE9, 0xCF, 0x83, 0x1B, 0x36, 0x6C, + 0xD8, 0xAD, 0x47, 0x8E, 0x01, 0x02 +}; +const u8 glog[512] = { + 0x00, 0x00, 0x01, 0x19, 0x02, 0x32, 0x1A, 0xC6, 0x03, 0xDF, 0x33, + 0xEE, 0x1B, 0x68, 0xC7, 0x4B, 0x04, 0x64, 0xE0, 0x0E, 0x34, 0x8D, + 0xEF, 0x81, 0x1C, 0xC1, 0x69, 0xF8, 0xC8, 0x08, 0x4C, 0x71, 0x05, + 0x8A, 0x65, 0x2F, 0xE1, 0x24, 0x0F, 0x21, 0x35, 0x93, 0x8E, 0xDA, + 0xF0, 0x12, 0x82, 0x45, 0x1D, 0xB5, 0xC2, 0x7D, 0x6A, 0x27, 0xF9, + 0xB9, 0xC9, 0x9A, 0x09, 0x78, 0x4D, 0xE4, 0x72, 0xA6, 0x06, 0xBF, + 0x8B, 0x62, 0x66, 0xDD, 0x30, 0xFD, 0xE2, 0x98, 0x25, 0xB3, 0x10, + 0x91, 0x22, 0x88, 0x36, 0xD0, 0x94, 0xCE, 0x8F, 0x96, 0xDB, 0xBD, + 0xF1, 0xD2, 0x13, 0x5C, 0x83, 0x38, 0x46, 0x40, 0x1E, 0x42, 0xB6, + 0xA3, 0xC3, 0x48, 0x7E, 0x6E, 0x6B, 0x3A, 0x28, 0x54, 0xFA, 0x85, + 0xBA, 0x3D, 0xCA, 0x5E, 0x9B, 0x9F, 0x0A, 0x15, 0x79, 0x2B, 0x4E, + 0xD4, 0xE5, 0xAC, 0x73, 0xF3, 0xA7, 0x57, 0x07, 0x70, 0xC0, 0xF7, + 0x8C, 0x80, 0x63, 0x0D, 0x67, 0x4A, 0xDE, 0xED, 0x31, 0xC5, 0xFE, + 0x18, 0xE3, 0xA5, 0x99, 0x77, 0x26, 0xB8, 0xB4, 0x7C, 0x11, 0x44, + 0x92, 0xD9, 0x23, 0x20, 0x89, 0x2E, 0x37, 0x3F, 0xD1, 0x5B, 0x95, + 0xBC, 0xCF, 0xCD, 0x90, 0x87, 0x97, 0xB2, 0xDC, 0xFC, 0xBE, 0x61, + 0xF2, 0x56, 0xD3, 0xAB, 0x14, 0x2A, 0x5D, 0x9E, 0x84, 0x3C, 0x39, + 0x53, 0x47, 0x6D, 0x41, 0xA2, 0x1F, 0x2D, 0x43, 0xD8, 0xB7, 0x7B, + 0xA4, 0x76, 0xC4, 0x17, 0x49, 0xEC, 0x7F, 0x0C, 0x6F, 0xF6, 0x6C, + 0xA1, 0x3B, 0x52, 0x29, 0x9D, 0x55, 0xAA, 0xFB, 0x60, 0x86, 0xB1, + 0xBB, 0xCC, 0x3E, 0x5A, 0xCB, 0x59, 0x5F, 0xB0, 0x9C, 0xA9, 0xA0, + 0x51, 0x0B, 0xF5, 0x16, 0xEB, 0x7A, 0x75, 0x2C, 0xD7, 0x4F, 0xAE, + 0xD5, 0xE9, 0xE6, 0xE7, 0xAD, 0xE8, 0x74, 0xD6, 0xF4, 0xEA, 0xA8, + 0x50, 0x58, 0xAF, 0xFF, 0x01, 0x19, 0x02, 0x32, 0x1A, 0xC6, 0x03, + 0xDF, 0x33, 0xEE, 0x1B, 0x68, 0xC7, 0x4B, 0x04, 0x64, 0xE0, 0x0E, + 0x34, 0x8D, 0xEF, 0x81, 0x1C, 0xC1, 0x69, 0xF8, 0xC8, 0x08, 0x4C, + 0x71, 0x05, 0x8A, 0x65, 0x2F, 0xE1, 0x24, 0x0F, 0x21, 0x35, 0x93, + 0x8E, 0xDA, 0xF0, 0x12, 0x82, 0x45, 0x1D, 0xB5, 0xC2, 0x7D, 0x6A, + 0x27, 0xF9, 0xB9, 0xC9, 0x9A, 0x09, 0x78, 0x4D, 0xE4, 0x72, 0xA6, + 0x06, 0xBF, 0x8B, 0x62, 0x66, 0xDD, 0x30, 0xFD, 0xE2, 0x98, 0x25, + 0xB3, 0x10, 0x91, 0x22, 0x88, 0x36, 0xD0, 0x94, 0xCE, 0x8F, 0x96, + 0xDB, 0xBD, 0xF1, 0xD2, 0x13, 0x5C, 0x83, 0x38, 0x46, 0x40, 0x1E, + 0x42, 0xB6, 0xA3, 0xC3, 0x48, 0x7E, 0x6E, 0x6B, 0x3A, 0x28, 0x54, + 0xFA, 0x85, 0xBA, 0x3D, 0xCA, 0x5E, 0x9B, 0x9F, 0x0A, 0x15, 0x79, + 0x2B, 0x4E, 0xD4, 0xE5, 0xAC, 0x73, 0xF3, 0xA7, 0x57, 0x07, 0x70, + 0xC0, 0xF7, 0x8C, 0x80, 0x63, 0x0D, 0x67, 0x4A, 0xDE, 0xED, 0x31, + 0xC5, 0xFE, 0x18, 0xE3, 0xA5, 0x99, 0x77, 0x26, 0xB8, 0xB4, 0x7C, + 0x11, 0x44, 0x92, 0xD9, 0x23, 0x20, 0x89, 0x2E, 0x37, 0x3F, 0xD1, + 0x5B, 0x95, 0xBC, 0xCF, 0xCD, 0x90, 0x87, 0x97, 0xB2, 0xDC, 0xFC, + 0xBE, 0x61, 0xF2, 0x56, 0xD3, 0xAB, 0x14, 0x2A, 0x5D, 0x9E, 0x84, + 0x3C, 0x39, 0x53, 0x47, 0x6D, 0x41, 0xA2, 0x1F, 0x2D, 0x43, 0xD8, + 0xB7, 0x7B, 0xA4, 0x76, 0xC4, 0x17, 0x49, 0xEC, 0x7F, 0x0C, 0x6F, + 0xF6, 0x6C, 0xA1, 0x3B, 0x52, 0x29, 0x9D, 0x55, 0xAA, 0xFB, 0x60, + 0x86, 0xB1, 0xBB, 0xCC, 0x3E, 0x5A, 0xCB, 0x59, 0x5F, 0xB0, 0x9C, + 0xA9, 0xA0, 0x51, 0x0B, 0xF5, 0x16, 0xEB, 0x7A, 0x75, 0x2C, 0xD7, + 0x4F, 0xAE, 0xD5, 0xE9, 0xE6, 0xE7, 0xAD, 0xE8, 0x74, 0xD6, 0xF4, + 0xEA, 0xA8, 0x50, 0x58, 0xAF, 0xFF +}; + +//.bss extern block_param_form LEOc2_param; + +//extern +extern u8 LEO_TempBuffer[0xE8]; extern u8 LEOC2_Syndrome[2][0xE8*4]; -#pragma GCC diagnostic push -#pragma GCC diagnostic ignored "-Wunknown-pragmas" - -#ifdef NON_MATCHING s32 leoC2_Correction(void) { switch (LEOc2_param.err_num) { + case 0: + break; case 1: leoC2_single_ecc(); - return 0; + break; case 2: leoC2_double_ecc(); - return 0; + break; case 3: leoC2_3_ecc(); - return 0; + break; case 4: leoC2_4_ecc(); - return 0; + break; default: - return -1; - case 0: - return 0; + return 0xFFFF; } + return 0; } -#else -#pragma GLOBAL_ASM("asm/nonmatchings/libleo/leoc2ecc/leoC2_Correction.s") -#endif void leoC2_single_ecc(void) { u8* pointer; @@ -52,11 +146,343 @@ void leoC2_single_ecc(void) { } } -#pragma GLOBAL_ASM("asm/nonmatchings/libleo/leoc2ecc/leoC2_double_ecc.s") +void leoC2_double_ecc(void) { + register u32 s0; + register u32 error_k; + u8* pointer1; + u8* pointer2; + u32 k; + u32 m; + u32 a; + u32 d; + u32 byte; + u8* p_s; -#pragma GLOBAL_ASM("asm/nonmatchings/libleo/leoc2ecc/leoC2_3_ecc.s") + k = 0x58 - LEOc2_param.err_pos[0]; + m = 0x58 - LEOc2_param.err_pos[1]; + d = ganlog[k] ^ ganlog[m]; + d = glog[leoAlpha_div(1, d)]; + byte = LEOc2_param.bytes; -#pragma GLOBAL_ASM("asm/nonmatchings/libleo/leoc2ecc/leoC2_4_ecc.s") + if (LEOc2_param.err_pos[1] < 0x55) { + goto c2_2_2; + } + pointer2 = &LEO_TempBuffer[sizeof(LEO_TempBuffer)]; + if (LEOc2_param.err_pos[0] < 0x55) { + goto c2_2_1; + } + return; +c2_2_2: + pointer2 = &LEOc2_param.pntr[(LEOc2_param.err_pos[1] + 1) * byte]; +c2_2_1: + pointer1 = &LEOc2_param.pntr[(LEOc2_param.err_pos[0] + 1) * byte]; + p_s = LEOc2_param.c2buff_e; + + do { + p_s -= 4; + s0 = p_s[0]; + if (s0 != 0) { + a = ganlog[m + glog[s0]] ^ p_s[1]; + } else { + a = p_s[1]; + } + pointer1--; + pointer2--; + if (a != 0) { + error_k = ganlog[glog[a] + d]; + *pointer1 ^= error_k; + *pointer2 ^= error_k ^ s0; + } else { + *pointer2 ^= s0; + } + } while (--byte != 0); +} + +void leoC2_3_ecc(void) { + register u32 s0; + register u32 error_i; + register u32 error_j; + register u32 error_k; + u8* pointer1; + u8* pointer2; + u8* pointer3; + u32 byte; + u32 ii; + u32 jj; + u32 kk; + u32 c; + u32 f; + u32 o; + u32 b; + u32 d; + u32 h; + u32 a; + u32 e; + u32 g; + u32 p; + u8* p_s; + + ii = 0x58 - LEOc2_param.err_pos[0]; + jj = 0x58 - LEOc2_param.err_pos[1]; + kk = 0x58 - LEOc2_param.err_pos[2]; + ii = ganlog[ii]; + jj = ganlog[jj]; + kk = ganlog[kk]; + c = leoAlpha_mult(kk, kk); + f = leoAlpha_mult(jj, jj); + o = leoAlpha_mult(ii, ii); + b = c ^ f; + d = c ^ o; + h = f ^ o; + a = leoAlpha_mult(jj, c) ^ leoAlpha_mult(kk, f); + e = leoAlpha_mult(kk, o) ^ leoAlpha_mult(ii, c); + g = leoAlpha_mult(jj, o) ^ leoAlpha_mult(ii, f); + c = jj ^ kk; + f = kk ^ ii; + o = ii ^ jj; + p = a ^ e ^ g; + p = leoAlpha_div(1, p); + a = glog[a]; + b = glog[b]; + c = glog[c]; + d = glog[d]; + e = glog[e]; + f = glog[f]; + g = glog[g]; + h = glog[h]; + o = glog[o]; + p = glog[p]; + byte = LEOc2_param.bytes; + if (LEOc2_param.err_pos[2] < 0x55) goto c2_3_3; + pointer3 = &LEO_TempBuffer[sizeof(LEO_TempBuffer)]; + if (LEOc2_param.err_pos[1] < 0x55) goto c2_3_2; + pointer2 = &LEO_TempBuffer[sizeof(LEO_TempBuffer)]; + if (LEOc2_param.err_pos[0] < 0x55) goto c2_3_1; + return; +c2_3_3: + pointer3 = &LEOc2_param.pntr[(LEOc2_param.err_pos[2] + 1) * byte]; +c2_3_2: + pointer2 = &LEOc2_param.pntr[(LEOc2_param.err_pos[1] + 1) * byte]; +c2_3_1: + pointer1 = &LEOc2_param.pntr[(LEOc2_param.err_pos[0] + 1) * byte]; + p_s = LEOc2_param.c2buff_e; + + do { + p_s -= 4; + s0 = p_s[0]; + if (s0) { + s0 = glog[s0]; + error_i = ganlog[s0 + a]; + error_j = ganlog[s0 + e]; + error_k = ganlog[s0 + g]; + } else { + error_i = error_j = error_k = 0; + } + s0 = p_s[1]; + if (s0) { + s0 = glog[s0]; + error_i ^= ganlog[s0 + b]; + error_j ^= ganlog[s0 + d]; + error_k ^= ganlog[s0 + h]; + } + s0 = p_s[2]; + if (s0) { + s0 = glog[s0]; + error_i ^= ganlog[s0 + c]; + error_j ^= ganlog[s0 + f]; + error_k ^= ganlog[s0 + o]; + } + pointer1--; + pointer2--; + pointer3--; + if (error_i) { + *pointer1 ^= ganlog[glog[error_i] + p]; + } + if (error_j) { + *pointer2 ^= ganlog[glog[error_j] + p]; + } + if (error_k) { + *pointer3 ^= ganlog[glog[error_k] + p]; + } + } while (--byte != 0); +} + +void leoC2_4_ecc(void) { + register u32 s0; + register u32 R0; + register u32 R1; + register u32 R2; + register u32 R3; + u8* pointer1; + u8* pointer2; + u8* pointer3; + u8* pointer4; + u32 aa; + u32 bb; + u32 dd; + u32 ee; + u32 gg; + u32 hh; + u32 pp; + u32 qq; + u32 ll; + u32 ii; + u32 jj; + u32 kk; + u32 byte; + u32 s; + u32 a; + u32 e; + u32 g; + u32 p; + u32 c; + u32 f; + u32 o; + u32 r; + u32 t; + u32 u; + u32 v; + u32 b; + u32 d; + u32 h; + u32 q; + u8* p_s; + + ii = 0x58 - LEOc2_param.err_pos[0]; + jj = 0x58 - LEOc2_param.err_pos[1]; + kk = 0x58 - LEOc2_param.err_pos[2]; + ll = 0x58 - LEOc2_param.err_pos[3]; + + ii = ganlog[ii]; + jj = ganlog[jj]; + kk = ganlog[kk]; + ll = ganlog[ll]; + s = ganlog[0]; + + aa = leoAlpha_div(s, ii); + bb = leoAlpha_div(s, jj); + ee = leoAlpha_div(s, kk); + dd = leoAlpha_div(s, ll); + + a = leoAlpha_mult(bb, ee); + e = leoAlpha_mult(ee, dd); + g = leoAlpha_mult(dd, bb); + p = leoAlpha_mult(dd, aa); + c = leoAlpha_mult(aa, ee); + f = leoAlpha_mult(aa, bb); + + b = a ^ e ^ g; + d = e ^ p ^ c; + h = p ^ f ^ g; + q = f ^ a ^ c; + a = bb ^ ee ^ dd; + e = ee ^ dd ^ aa; + g = dd ^ aa ^ bb; + p = aa ^ bb ^ ee; + + c = leoAlpha_mult(leoAlpha_mult(bb, ee), dd); + f = leoAlpha_mult(leoAlpha_mult(ee, dd), aa); + o = leoAlpha_mult(leoAlpha_mult(dd, aa), bb); + r = leoAlpha_mult(leoAlpha_mult(aa, bb), ee); + + s = leoAlpha_mult(leoAlpha_mult(leoAlpha_div(ii, jj) ^ 1, leoAlpha_div(ii, kk) ^ 1), leoAlpha_div(ii, ll) ^ 1); + s = leoAlpha_div(1, s); + t = leoAlpha_mult(leoAlpha_mult(leoAlpha_div(jj, ii) ^ 1, leoAlpha_div(jj, kk) ^ 1), leoAlpha_div(jj, ll) ^ 1); + t = leoAlpha_div(1, t); + u = leoAlpha_mult(leoAlpha_mult(leoAlpha_div(kk, ii) ^ 1, leoAlpha_div(kk, jj) ^ 1), leoAlpha_div(kk, ll) ^ 1); + u = leoAlpha_div(1, u); + v = leoAlpha_mult(leoAlpha_mult(leoAlpha_div(ll, ii) ^ 1, leoAlpha_div(ll, jj) ^ 1), leoAlpha_div(ll, kk) ^ 1); + v = leoAlpha_div(1, v); + + aa = glog[leoAlpha_mult(a, s)]; + bb = glog[leoAlpha_mult(b, s)]; + c = leoAlpha_mult(c, s); + ee = glog[leoAlpha_mult(e, t)]; + dd = glog[leoAlpha_mult(d, t)]; + f = leoAlpha_mult(f, t); + gg = glog[leoAlpha_mult(g, u)]; + hh = glog[leoAlpha_mult(h, u)]; + o = leoAlpha_mult(o, u); + pp = glog[leoAlpha_mult(p, v)]; + qq = glog[leoAlpha_mult(q, v)]; + r = leoAlpha_mult(r, v); + + s = glog[s]; + c = glog[c]; + t = glog[t]; + f = glog[f]; + u = glog[u]; + o = glog[o]; + v = glog[v]; + r = glog[r]; + + byte = LEOc2_param.bytes; + + if (LEOc2_param.err_pos[3] < 0x55) goto c2_4_4; + pointer4 = &LEO_TempBuffer[sizeof(LEO_TempBuffer)]; + if (LEOc2_param.err_pos[2] < 0x55) goto c2_4_3; + pointer3 = &LEO_TempBuffer[sizeof(LEO_TempBuffer)]; + if (LEOc2_param.err_pos[1] < 0x55) goto c2_4_2; + pointer2 = &LEO_TempBuffer[sizeof(LEO_TempBuffer)]; + if (LEOc2_param.err_pos[0] < 0x55) goto c2_4_1; + return; + +c2_4_4: + pointer4 = &LEOc2_param.pntr[(LEOc2_param.err_pos[3] + 1) * byte]; +c2_4_3: + pointer3 = &LEOc2_param.pntr[(LEOc2_param.err_pos[2] + 1) * byte]; +c2_4_2: + pointer2 = &LEOc2_param.pntr[(LEOc2_param.err_pos[1] + 1) * byte]; +c2_4_1: + pointer1 = &LEOc2_param.pntr[(LEOc2_param.err_pos[0] + 1) * byte]; + p_s = LEOc2_param.c2buff_e; + + do { + p_s -= 4; + s0 = p_s[0]; + if (!s0) { + R0 = R1 = R2 = R3 = 0; + } else { + s0 = glog[s0]; + R0 = ganlog[s0 + s]; + R1 = ganlog[s0 + t]; + R2 = ganlog[s0 + u]; + R3 = ganlog[s0 + v]; + } + s0 = p_s[1]; + if (s0) { + s0 = glog[s0]; + R0 ^= (!a) ? 0 : ganlog[s0 + aa]; + R1 ^= (!e) ? 0 : ganlog[s0 + ee]; + R2 ^= (!g) ? 0 : ganlog[s0 + gg]; + R3 ^= (!p) ? 0 : ganlog[s0 + pp]; + } + s0 = p_s[2]; + if (s0) { + s0 = glog[s0]; + R0 ^= (!b) ? 0 : ganlog[s0 + bb]; + R1 ^= (!d) ? 0 : ganlog[s0 + dd]; + R2 ^= (!h) ? 0 : ganlog[s0 + hh]; + R3 ^= (!q) ? 0 : ganlog[s0 + qq]; + } + s0 = p_s[3]; + if (s0) { + s0 = glog[s0]; + R0 ^= ganlog[s0 + c]; + R1 ^= ganlog[s0 + f]; + R2 ^= ganlog[s0 + o]; + R3 ^= ganlog[s0 + r]; + } + pointer1--; + pointer2--; + pointer3--; + pointer4--; + if (R0) *pointer1 ^= R0; + if (R1) *pointer2 ^= R1; + if (R2) *pointer3 ^= R2; + if (R3) *pointer4 ^= R3; + } while (--byte != 0); +} s32 leoAlpha_mult(s32 i, s32 k) { if ((i == 0) || (k == 0)) {