// 187 blocks, 12072 bytes // 14 IRAM blocks #include "../../PicoInt.h" #define TCACHE_SIZE (256*1024) static unsigned short *block_table[0x5090/2]; static unsigned short *block_table_iram[15][0x800/2]; static unsigned short *tcache = NULL; static unsigned short *tcache_ptr = NULL; static int had_jump = 0; static int nblocks = 0; static int iram_context = 0; #define EMBED_INTERPRETER #define ssp1601_reset ssp1601_reset_local #define ssp1601_run ssp1601_run_local static unsigned int interp_get_pc(void); #define GET_PC interp_get_pc #define GET_PPC_OFFS() (interp_get_pc()*2 - 2) #define SET_PC(d) { had_jump = 1; rPC = d; } /* must return to dispatcher after this */ //#define GET_PC() (PC - (unsigned short *)svp->iram_rom) //#define GET_PPC_OFFS() ((unsigned int)PC - (unsigned int)svp->iram_rom - 2) //#define SET_PC(d) PC = (unsigned short *)svp->iram_rom + d #include "ssp16.c" // ----------------------------------------------------- static unsigned int crctable[256] = { 0x00000000L, 0x77073096L, 0xEE0E612CL, 0x990951BAL, 0x076DC419L, 0x706AF48FL, 0xE963A535L, 0x9E6495A3L, 0x0EDB8832L, 0x79DCB8A4L, 0xE0D5E91EL, 0x97D2D988L, 0x09B64C2BL, 0x7EB17CBDL, 0xE7B82D07L, 0x90BF1D91L, 0x1DB71064L, 0x6AB020F2L, 0xF3B97148L, 0x84BE41DEL, 0x1ADAD47DL, 0x6DDDE4EBL, 0xF4D4B551L, 0x83D385C7L, 0x136C9856L, 0x646BA8C0L, 0xFD62F97AL, 0x8A65C9ECL, 0x14015C4FL, 0x63066CD9L, 0xFA0F3D63L, 0x8D080DF5L, 0x3B6E20C8L, 0x4C69105EL, 0xD56041E4L, 0xA2677172L, 0x3C03E4D1L, 0x4B04D447L, 0xD20D85FDL, 0xA50AB56BL, 0x35B5A8FAL, 0x42B2986CL, 0xDBBBC9D6L, 0xACBCF940L, 0x32D86CE3L, 0x45DF5C75L, 0xDCD60DCFL, 0xABD13D59L, 0x26D930ACL, 0x51DE003AL, 0xC8D75180L, 0xBFD06116L, 0x21B4F4B5L, 0x56B3C423L, 0xCFBA9599L, 0xB8BDA50FL, 0x2802B89EL, 0x5F058808L, 0xC60CD9B2L, 0xB10BE924L, 0x2F6F7C87L, 0x58684C11L, 0xC1611DABL, 0xB6662D3DL, 0x76DC4190L, 0x01DB7106L, 0x98D220BCL, 0xEFD5102AL, 0x71B18589L, 0x06B6B51FL, 0x9FBFE4A5L, 0xE8B8D433L, 0x7807C9A2L, 0x0F00F934L, 0x9609A88EL, 0xE10E9818L, 0x7F6A0DBBL, 0x086D3D2DL, 0x91646C97L, 0xE6635C01L, 0x6B6B51F4L, 0x1C6C6162L, 0x856530D8L, 0xF262004EL, 0x6C0695EDL, 0x1B01A57BL, 0x8208F4C1L, 0xF50FC457L, 0x65B0D9C6L, 0x12B7E950L, 0x8BBEB8EAL, 0xFCB9887CL, 0x62DD1DDFL, 0x15DA2D49L, 0x8CD37CF3L, 0xFBD44C65L, 0x4DB26158L, 0x3AB551CEL, 0xA3BC0074L, 0xD4BB30E2L, 0x4ADFA541L, 0x3DD895D7L, 0xA4D1C46DL, 0xD3D6F4FBL, 0x4369E96AL, 0x346ED9FCL, 0xAD678846L, 0xDA60B8D0L, 0x44042D73L, 0x33031DE5L, 0xAA0A4C5FL, 0xDD0D7CC9L, 0x5005713CL, 0x270241AAL, 0xBE0B1010L, 0xC90C2086L, 0x5768B525L, 0x206F85B3L, 0xB966D409L, 0xCE61E49FL, 0x5EDEF90EL, 0x29D9C998L, 0xB0D09822L, 0xC7D7A8B4L, 0x59B33D17L, 0x2EB40D81L, 0xB7BD5C3BL, 0xC0BA6CADL, 0xEDB88320L, 0x9ABFB3B6L, 0x03B6E20CL, 0x74B1D29AL, 0xEAD54739L, 0x9DD277AFL, 0x04DB2615L, 0x73DC1683L, 0xE3630B12L, 0x94643B84L, 0x0D6D6A3EL, 0x7A6A5AA8L, 0xE40ECF0BL, 0x9309FF9DL, 0x0A00AE27L, 0x7D079EB1L, 0xF00F9344L, 0x8708A3D2L, 0x1E01F268L, 0x6906C2FEL, 0xF762575DL, 0x806567CBL, 0x196C3671L, 0x6E6B06E7L, 0xFED41B76L, 0x89D32BE0L, 0x10DA7A5AL, 0x67DD4ACCL, 0xF9B9DF6FL, 0x8EBEEFF9L, 0x17B7BE43L, 0x60B08ED5L, 0xD6D6A3E8L, 0xA1D1937EL, 0x38D8C2C4L, 0x4FDFF252L, 0xD1BB67F1L, 0xA6BC5767L, 0x3FB506DDL, 0x48B2364BL, 0xD80D2BDAL, 0xAF0A1B4CL, 0x36034AF6L, 0x41047A60L, 0xDF60EFC3L, 0xA867DF55L, 0x316E8EEFL, 0x4669BE79L, 0xCB61B38CL, 0xBC66831AL, 0x256FD2A0L, 0x5268E236L, 0xCC0C7795L, 0xBB0B4703L, 0x220216B9L, 0x5505262FL, 0xC5BA3BBEL, 0xB2BD0B28L, 0x2BB45A92L, 0x5CB36A04L, 0xC2D7FFA7L, 0xB5D0CF31L, 0x2CD99E8BL, 0x5BDEAE1DL, 0x9B64C2B0L, 0xEC63F226L, 0x756AA39CL, 0x026D930AL, 0x9C0906A9L, 0xEB0E363FL, 0x72076785L, 0x05005713L, 0x95BF4A82L, 0xE2B87A14L, 0x7BB12BAEL, 0x0CB61B38L, 0x92D28E9BL, 0xE5D5BE0DL, 0x7CDCEFB7L, 0x0BDBDF21L, 0x86D3D2D4L, 0xF1D4E242L, 0x68DDB3F8L, 0x1FDA836EL, 0x81BE16CDL, 0xF6B9265BL, 0x6FB077E1L, 0x18B74777L, 0x88085AE6L, 0xFF0F6A70L, 0x66063BCAL, 0x11010B5CL, 0x8F659EFFL, 0xF862AE69L, 0x616BFFD3L, 0x166CCF45L, 0xA00AE278L, 0xD70DD2EEL, 0x4E048354L, 0x3903B3C2L, 0xA7672661L, 0xD06016F7L, 0x4969474DL, 0x3E6E77DBL, 0xAED16A4AL, 0xD9D65ADCL, 0x40DF0B66L, 0x37D83BF0L, 0xA9BCAE53L, 0xDEBB9EC5L, 0x47B2CF7FL, 0x30B5FFE9L, 0xBDBDF21CL, 0xCABAC28AL, 0x53B39330L, 0x24B4A3A6L, 0xBAD03605L, 0xCDD70693L, 0x54DE5729L, 0x23D967BFL, 0xB3667A2EL, 0xC4614AB8L, 0x5D681B02L, 0x2A6F2B94L, 0xB40BBE37L, 0xC30C8EA1L, 0x5A05DF1BL, 0x2D02EF8DL }; static u32 chksum_crc32 (unsigned char *block, unsigned int length) { register u32 crc; unsigned long i; crc = 0xFFFFFFFF; for (i = 0; i < length; i++) { crc = ((crc >> 8) & 0x00FFFFFF) ^ crctable[(crc ^ *block++) & 0xFF]; } return (crc ^ 0xFFFFFFFF); } //static int iram_crcs[32] = { 0, }; // ----------------------------------------------------- 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; } #define PROGRAM(x) ((unsigned short *)svp->iram_rom)[x] static u32 interp_get_pc(void) { unsigned short *pc1 = PC; int i; while (pc1[-1] != 0xfe01) pc1--; // goto current block start for (i = 0; i < 0x5090/2; i++) if (block_table[i] == pc1) break; if (i == 0x5090/2) { for (i = 0; i < 0x800/2; i++) if (block_table_iram[iram_context][i] == pc1) break; if (i == 0x800/2) { printf("block not found!\n"); exit(1); } } return i + (PC - pc1); } static void *translate_block(int pc) { int tmp, op, op1, icount = 0; void *ret; ret = tcache_ptr; //printf("translate %04x -> %04x\n", pc<<1, (tcache_ptr-tcache)<<1); for (;;) { op = PROGRAM(pc++); op1 = op >> 9; *tcache_ptr++ = op; icount++; // need immediate? if ((op1 & 0xf) == 4 || (op1 & 0xf) == 6) { tmp = PROGRAM(pc++); *tcache_ptr++ = tmp; // immediate } if (op1 == 0x24 || op1 == 0x26 || // call, bra ((op1 == 0 || op1 == 1 || op1 == 4 || op1 == 5 || op1 == 9 || op1 == 0x25) && (op & 0xf0) == 0x60)) { // ld PC break; } } *tcache_ptr++ = 0xfe01; // end of block //printf(" %i inst\n", icount); if (tcache_ptr - tcache > TCACHE_SIZE/2) { printf("tcache overflow!\n"); fflush(stdout); exit(1); } // stats nblocks++; //if (pc >= 0x400) printf("%i blocks, %i bytes\n", nblocks, (tcache_ptr - tcache)*2); return ret; } // ----------------------------------------------------- int ssp1601_dyn_init(void) { tcache = tcache_ptr = malloc(TCACHE_SIZE); memset(tcache, 0, sizeof(TCACHE_SIZE)); memset(block_table, 0, sizeof(block_table)); memset(block_table_iram, 0, sizeof(block_table_iram)); *tcache_ptr++ = 0xfe01; return 0; } void ssp1601_dyn_reset(ssp1601_t *ssp) { ssp1601_reset_local(ssp); } void ssp1601_dyn_run(int cycles) { while (cycles > 0) { int pc_old = rPC; if (rPC < 0x800/2) { if (iram_dirty) { iram_context = get_iram_context(); iram_dirty = 0; } if (block_table_iram[iram_context][rPC] == NULL) block_table_iram[iram_context][rPC] = translate_block(rPC); PC = block_table_iram[iram_context][rPC]; } else { if (block_table[rPC] == NULL) block_table[rPC] = translate_block(rPC); PC = block_table[rPC]; } had_jump = 0; //printf("enter @ %04x, PC=%04x\n", (PC - tcache)<<1, rPC<<1); ssp1601_run_local(0x10000); cycles -= 0x10000 - g_cycles; if (!had_jump) { // no jumps if (pc_old < 0x800/2) rPC += (PC - block_table_iram[iram_context][pc_old]) - 1; else rPC += (PC - block_table[pc_old]) - 1; } //printf("end @ %04x, PC=%04x\n", (PC - tcache)<<1, rPC<<1); /* if (pc_old < 0x400) { // flush IRAM cache tcache_ptr = block_table[pc_old]; block_table[pc_old] = NULL; nblocks--; } if (pc_old >= 0x400 && rPC < 0x400) { int i, crc = chksum_crc32(svp->iram_rom, 0x800); for (i = 0; i < 32; i++) if (iram_crcs[i] == crc) break; if (i == 32) { char name[32]; for (i = 0; i < 32 && iram_crcs[i]; i++); iram_crcs[i] = crc; printf("%i IRAMs\n", i+1); sprintf(name, "ir%08x.bin", crc); debug_dump2file(name, svp->iram_rom, 0x800); } printf("CRC %08x %08x\n", crc, iram_id); } */ } // debug_dump2file("tcache.bin", tcache, (tcache_ptr - tcache) << 1); // exit(1); }