| |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <assert.h> |
| |
| #define VERBOSE 0 |
| |
| typedef unsigned int UInt; |
| typedef unsigned char UChar; |
| typedef unsigned long long int ULong; |
| typedef signed long long int Long; |
| typedef signed int Int; |
| typedef unsigned short UShort; |
| typedef unsigned long UWord; |
| typedef char HChar; |
| |
| ///////////////////////////////////////////////////////////////// |
| // BEGIN crc32 stuff // |
| ///////////////////////////////////////////////////////////////// |
| |
| static const UInt crc32Table[256] = { |
| |
| /*-- Ugly, innit? --*/ |
| |
| 0x00000000L, 0x04c11db7L, 0x09823b6eL, 0x0d4326d9L, |
| 0x130476dcL, 0x17c56b6bL, 0x1a864db2L, 0x1e475005L, |
| 0x2608edb8L, 0x22c9f00fL, 0x2f8ad6d6L, 0x2b4bcb61L, |
| 0x350c9b64L, 0x31cd86d3L, 0x3c8ea00aL, 0x384fbdbdL, |
| 0x4c11db70L, 0x48d0c6c7L, 0x4593e01eL, 0x4152fda9L, |
| 0x5f15adacL, 0x5bd4b01bL, 0x569796c2L, 0x52568b75L, |
| 0x6a1936c8L, 0x6ed82b7fL, 0x639b0da6L, 0x675a1011L, |
| 0x791d4014L, 0x7ddc5da3L, 0x709f7b7aL, 0x745e66cdL, |
| 0x9823b6e0L, 0x9ce2ab57L, 0x91a18d8eL, 0x95609039L, |
| 0x8b27c03cL, 0x8fe6dd8bL, 0x82a5fb52L, 0x8664e6e5L, |
| 0xbe2b5b58L, 0xbaea46efL, 0xb7a96036L, 0xb3687d81L, |
| 0xad2f2d84L, 0xa9ee3033L, 0xa4ad16eaL, 0xa06c0b5dL, |
| 0xd4326d90L, 0xd0f37027L, 0xddb056feL, 0xd9714b49L, |
| 0xc7361b4cL, 0xc3f706fbL, 0xceb42022L, 0xca753d95L, |
| 0xf23a8028L, 0xf6fb9d9fL, 0xfbb8bb46L, 0xff79a6f1L, |
| 0xe13ef6f4L, 0xe5ffeb43L, 0xe8bccd9aL, 0xec7dd02dL, |
| 0x34867077L, 0x30476dc0L, 0x3d044b19L, 0x39c556aeL, |
| 0x278206abL, 0x23431b1cL, 0x2e003dc5L, 0x2ac12072L, |
| 0x128e9dcfL, 0x164f8078L, 0x1b0ca6a1L, 0x1fcdbb16L, |
| 0x018aeb13L, 0x054bf6a4L, 0x0808d07dL, 0x0cc9cdcaL, |
| 0x7897ab07L, 0x7c56b6b0L, 0x71159069L, 0x75d48ddeL, |
| 0x6b93dddbL, 0x6f52c06cL, 0x6211e6b5L, 0x66d0fb02L, |
| 0x5e9f46bfL, 0x5a5e5b08L, 0x571d7dd1L, 0x53dc6066L, |
| 0x4d9b3063L, 0x495a2dd4L, 0x44190b0dL, 0x40d816baL, |
| 0xaca5c697L, 0xa864db20L, 0xa527fdf9L, 0xa1e6e04eL, |
| 0xbfa1b04bL, 0xbb60adfcL, 0xb6238b25L, 0xb2e29692L, |
| 0x8aad2b2fL, 0x8e6c3698L, 0x832f1041L, 0x87ee0df6L, |
| 0x99a95df3L, 0x9d684044L, 0x902b669dL, 0x94ea7b2aL, |
| 0xe0b41de7L, 0xe4750050L, 0xe9362689L, 0xedf73b3eL, |
| 0xf3b06b3bL, 0xf771768cL, 0xfa325055L, 0xfef34de2L, |
| 0xc6bcf05fL, 0xc27dede8L, 0xcf3ecb31L, 0xcbffd686L, |
| 0xd5b88683L, 0xd1799b34L, 0xdc3abdedL, 0xd8fba05aL, |
| 0x690ce0eeL, 0x6dcdfd59L, 0x608edb80L, 0x644fc637L, |
| 0x7a089632L, 0x7ec98b85L, 0x738aad5cL, 0x774bb0ebL, |
| 0x4f040d56L, 0x4bc510e1L, 0x46863638L, 0x42472b8fL, |
| 0x5c007b8aL, 0x58c1663dL, 0x558240e4L, 0x51435d53L, |
| 0x251d3b9eL, 0x21dc2629L, 0x2c9f00f0L, 0x285e1d47L, |
| 0x36194d42L, 0x32d850f5L, 0x3f9b762cL, 0x3b5a6b9bL, |
| 0x0315d626L, 0x07d4cb91L, 0x0a97ed48L, 0x0e56f0ffL, |
| 0x1011a0faL, 0x14d0bd4dL, 0x19939b94L, 0x1d528623L, |
| 0xf12f560eL, 0xf5ee4bb9L, 0xf8ad6d60L, 0xfc6c70d7L, |
| 0xe22b20d2L, 0xe6ea3d65L, 0xeba91bbcL, 0xef68060bL, |
| 0xd727bbb6L, 0xd3e6a601L, 0xdea580d8L, 0xda649d6fL, |
| 0xc423cd6aL, 0xc0e2d0ddL, 0xcda1f604L, 0xc960ebb3L, |
| 0xbd3e8d7eL, 0xb9ff90c9L, 0xb4bcb610L, 0xb07daba7L, |
| 0xae3afba2L, 0xaafbe615L, 0xa7b8c0ccL, 0xa379dd7bL, |
| 0x9b3660c6L, 0x9ff77d71L, 0x92b45ba8L, 0x9675461fL, |
| 0x8832161aL, 0x8cf30badL, 0x81b02d74L, 0x857130c3L, |
| 0x5d8a9099L, 0x594b8d2eL, 0x5408abf7L, 0x50c9b640L, |
| 0x4e8ee645L, 0x4a4ffbf2L, 0x470cdd2bL, 0x43cdc09cL, |
| 0x7b827d21L, 0x7f436096L, 0x7200464fL, 0x76c15bf8L, |
| 0x68860bfdL, 0x6c47164aL, 0x61043093L, 0x65c52d24L, |
| 0x119b4be9L, 0x155a565eL, 0x18197087L, 0x1cd86d30L, |
| 0x029f3d35L, 0x065e2082L, 0x0b1d065bL, 0x0fdc1becL, |
| 0x3793a651L, 0x3352bbe6L, 0x3e119d3fL, 0x3ad08088L, |
| 0x2497d08dL, 0x2056cd3aL, 0x2d15ebe3L, 0x29d4f654L, |
| 0xc5a92679L, 0xc1683bceL, 0xcc2b1d17L, 0xc8ea00a0L, |
| 0xd6ad50a5L, 0xd26c4d12L, 0xdf2f6bcbL, 0xdbee767cL, |
| 0xe3a1cbc1L, 0xe760d676L, 0xea23f0afL, 0xeee2ed18L, |
| 0xf0a5bd1dL, 0xf464a0aaL, 0xf9278673L, 0xfde69bc4L, |
| 0x89b8fd09L, 0x8d79e0beL, 0x803ac667L, 0x84fbdbd0L, |
| 0x9abc8bd5L, 0x9e7d9662L, 0x933eb0bbL, 0x97ffad0cL, |
| 0xafb010b1L, 0xab710d06L, 0xa6322bdfL, 0xa2f33668L, |
| 0xbcb4666dL, 0xb8757bdaL, 0xb5365d03L, 0xb1f740b4L |
| }; |
| |
| #define UPDATE_CRC(crcVar,cha) \ |
| { \ |
| crcVar = (crcVar << 8) ^ \ |
| crc32Table[(crcVar >> 24) ^ \ |
| ((UChar)cha)]; \ |
| } |
| |
| static UInt crcBytes ( UChar* bytes, UWord nBytes, UInt crcIn ) |
| { |
| UInt crc = crcIn; |
| while (nBytes >= 4) { |
| UPDATE_CRC(crc, bytes[0]); |
| UPDATE_CRC(crc, bytes[1]); |
| UPDATE_CRC(crc, bytes[2]); |
| UPDATE_CRC(crc, bytes[3]); |
| bytes += 4; |
| nBytes -= 4; |
| } |
| while (nBytes >= 1) { |
| UPDATE_CRC(crc, bytes[0]); |
| bytes += 1; |
| nBytes -= 1; |
| } |
| return crc; |
| } |
| |
| static UInt crcFinalise ( UInt crc ) { |
| return ~crc; |
| } |
| |
| //////// |
| |
| static UInt theCRC = 0xFFFFFFFF; |
| |
| static HChar outBuf[1024]; |
| // take output that's in outBuf, length as specified, and |
| // update the running crc. |
| static void send ( int nbytes ) |
| { |
| assert( ((unsigned int)nbytes) < sizeof(outBuf)-1); |
| assert(outBuf[nbytes] == 0); |
| theCRC = crcBytes( (UChar*)&outBuf[0], nbytes, theCRC ); |
| if (VERBOSE) printf("SEND %08x %s", theCRC, outBuf); |
| } |
| |
| |
| ///////////////////////////////////////////////////////////////// |
| // END crc32 stuff // |
| ///////////////////////////////////////////////////////////////// |
| |
| #if 0 |
| |
| // full version |
| #define NVALS 57 |
| |
| static unsigned int val[NVALS] |
| = { 0x00, 0x01, 0x02, 0x03, |
| 0x3F, 0x40, 0x41, |
| 0x7E, 0x7F, 0x80, 0x81, 0x82, |
| 0xBF, 0xC0, 0xC1, |
| 0xFC, 0xFD, 0xFE, 0xFF, |
| |
| 0xFF00, 0xFF01, 0xFF02, 0xFF03, |
| 0xFF3F, 0xFF40, 0xFF41, |
| 0xFF7E, 0xFF7F, 0xFF80, 0xFF81, 0xFF82, |
| 0xFFBF, 0xFFC0, 0xFFC1, |
| 0xFFFC, 0xFFFD, 0xFFFE, 0xFFFF, |
| |
| 0xFFFFFF00, 0xFFFFFF01, 0xFFFFFF02, 0xFFFFFF03, |
| 0xFFFFFF3F, 0xFFFFFF40, 0xFFFFFF41, |
| 0xFFFFFF7E, 0xFFFFFF7F, 0xFFFFFF80, 0xFFFFFF81, 0xFFFFFF82, |
| 0xFFFFFFBF, 0xFFFFFFC0, 0xFFFFFFC1, |
| 0xFFFFFFFC, 0xFFFFFFFD, 0xFFFFFFFE, 0xFFFFFFFF |
| }; |
| |
| #else |
| |
| // shortened version, for use as valgrind regtest |
| #define NVALS 27 |
| |
| static unsigned int val[NVALS] |
| = { 0x00, 0x01, |
| 0x3F, 0x40, |
| 0x7F, 0x80, |
| 0xBF, 0xC0, |
| 0xFF, |
| |
| 0xFF00, 0xFF01, |
| 0xFF3F, 0xFF40, |
| 0xFF7F, 0xFF80, |
| 0xFFBF, 0xFFC0, |
| 0xFFFF, |
| |
| 0xFFFFFF00, 0xFFFFFF01, |
| 0xFFFFFF3F, 0xFFFFFF40, |
| 0xFFFFFF7F, 0xFFFFFF80, |
| 0xFFFFFFBF, 0xFFFFFFC0, |
| 0xFFFFFFFF |
| }; |
| |
| #endif |
| |
| ///////////////////////////////////// |
| |
| #define CC_C 0x0001 |
| #define CC_P 0x0004 |
| #define CC_A 0x0010 |
| #define CC_Z 0x0040 |
| #define CC_S 0x0080 |
| #define CC_O 0x0800 |
| |
| #define CC_MASK (CC_C | CC_P | CC_A | CC_Z | CC_S | CC_O) |
| |
| #define GEN_do_locked_G_E(_name,_eax) \ |
| \ |
| __attribute__((noinline)) void do_locked_G_E_##_name ( void ) \ |
| { \ |
| volatile int e_val, g_val, e_val_before; \ |
| int o, s, z, a, c, p, v1, v2, flags_in; \ |
| int block[4]; \ |
| \ |
| for (v1 = 0; v1 < NVALS; v1++) { \ |
| for (v2 = 0; v2 < NVALS; v2++) { \ |
| \ |
| for (o = 0; o < 2; o++) { \ |
| for (s = 0; s < 2; s++) { \ |
| for (z = 0; z < 2; z++) { \ |
| for (a = 0; a < 2; a++) { \ |
| for (c = 0; c < 2; c++) { \ |
| for (p = 0; p < 2; p++) { \ |
| \ |
| flags_in = (o ? CC_O : 0) \ |
| | (s ? CC_S : 0) \ |
| | (z ? CC_Z : 0) \ |
| | (a ? CC_A : 0) \ |
| | (c ? CC_C : 0) \ |
| | (p ? CC_P : 0); \ |
| \ |
| g_val = val[v1]; \ |
| e_val = val[v2]; \ |
| e_val_before = e_val; \ |
| \ |
| block[0] = flags_in; \ |
| block[1] = g_val; \ |
| block[2] = (int)(long)&e_val; \ |
| block[3] = 0; \ |
| __asm__ __volatile__( \ |
| "movl 0(%0), %%eax\n\t" \ |
| "pushl %%eax\n\t" \ |
| "popfl\n\t" \ |
| "movl 4(%0), %%eax\n\t" \ |
| "movl 8(%0), %%ebx\n\t" \ |
| "lock; " #_name " %%" #_eax ",(%%ebx)\n\t" \ |
| "pushfl\n\t" \ |
| "popl %%eax\n\t" \ |
| "movl %%eax, 12(%0)\n\t" \ |
| : : "r"(&block[0]) : "eax","ebx","cc","memory" \ |
| ); \ |
| \ |
| send( \ |
| sprintf(outBuf, \ |
| "%s G=%08x E=%08x CCIN=%08x -> E=%08x CCOUT=%08x\n", \ |
| #_name, g_val, e_val_before, flags_in, \ |
| e_val, block[3] & CC_MASK) ); \ |
| \ |
| }}}}}} \ |
| \ |
| }} \ |
| } |
| |
| GEN_do_locked_G_E(addb,al) |
| GEN_do_locked_G_E(addw,ax) |
| GEN_do_locked_G_E(addl,eax) |
| |
| GEN_do_locked_G_E(orb, al) |
| GEN_do_locked_G_E(orw, ax) |
| GEN_do_locked_G_E(orl, eax) |
| |
| GEN_do_locked_G_E(adcb,al) |
| GEN_do_locked_G_E(adcw,ax) |
| GEN_do_locked_G_E(adcl,eax) |
| |
| GEN_do_locked_G_E(sbbb,al) |
| GEN_do_locked_G_E(sbbw,ax) |
| GEN_do_locked_G_E(sbbl,eax) |
| |
| GEN_do_locked_G_E(andb,al) |
| GEN_do_locked_G_E(andw,ax) |
| GEN_do_locked_G_E(andl,eax) |
| |
| GEN_do_locked_G_E(subb,al) |
| GEN_do_locked_G_E(subw,ax) |
| GEN_do_locked_G_E(subl,eax) |
| |
| GEN_do_locked_G_E(xorb,al) |
| GEN_do_locked_G_E(xorw,ax) |
| GEN_do_locked_G_E(xorl,eax) |
| |
| |
| |
| |
| #define GEN_do_locked_imm_E(_name,_eax,_imm) \ |
| \ |
| __attribute__((noinline)) void do_locked_imm_E_##_name##_##_imm ( void ) \ |
| { \ |
| volatile int e_val, e_val_before; \ |
| int o, s, z, a, c, p, v2, flags_in; \ |
| int block[3]; \ |
| \ |
| for (v2 = 0; v2 < NVALS; v2++) { \ |
| \ |
| for (o = 0; o < 2; o++) { \ |
| for (s = 0; s < 2; s++) { \ |
| for (z = 0; z < 2; z++) { \ |
| for (a = 0; a < 2; a++) { \ |
| for (c = 0; c < 2; c++) { \ |
| for (p = 0; p < 2; p++) { \ |
| \ |
| flags_in = (o ? CC_O : 0) \ |
| | (s ? CC_S : 0) \ |
| | (z ? CC_Z : 0) \ |
| | (a ? CC_A : 0) \ |
| | (c ? CC_C : 0) \ |
| | (p ? CC_P : 0); \ |
| \ |
| e_val = val[v2]; \ |
| e_val_before = e_val; \ |
| \ |
| block[0] = flags_in; \ |
| block[1] = (int)(long)&e_val; \ |
| block[2] = 0; \ |
| __asm__ __volatile__( \ |
| "movl 0(%0), %%eax\n\t" \ |
| "pushl %%eax\n\t" \ |
| "popfl\n\t" \ |
| "movl 4(%0), %%ebx\n\t" \ |
| "lock; " #_name " $" #_imm ",(%%ebx)\n\t" \ |
| "pushfl\n\t" \ |
| "popl %%eax\n\t" \ |
| "movl %%eax, 8(%0)\n\t" \ |
| : : "r"(&block[0]) : "eax","ebx","cc","memory" \ |
| ); \ |
| \ |
| send( \ |
| sprintf(outBuf, \ |
| "%s I=%s E=%08x CCIN=%08x -> E=%08x CCOUT=%08x\n", \ |
| #_name, #_imm, e_val_before, flags_in, \ |
| e_val, block[2] & CC_MASK) ); \ |
| \ |
| }}}}}} \ |
| \ |
| } \ |
| } |
| |
| GEN_do_locked_imm_E(addb,al,0x7F) |
| GEN_do_locked_imm_E(addb,al,0xF1) |
| GEN_do_locked_imm_E(addw,ax,0x7E) |
| GEN_do_locked_imm_E(addw,ax,0x9325) |
| GEN_do_locked_imm_E(addl,eax,0x7D) |
| GEN_do_locked_imm_E(addl,eax,0x31415927) |
| |
| GEN_do_locked_imm_E(orb,al,0x7F) |
| GEN_do_locked_imm_E(orb,al,0xF1) |
| GEN_do_locked_imm_E(orw,ax,0x7E) |
| GEN_do_locked_imm_E(orw,ax,0x9325) |
| GEN_do_locked_imm_E(orl,eax,0x7D) |
| GEN_do_locked_imm_E(orl,eax,0x31415927) |
| |
| GEN_do_locked_imm_E(adcb,al,0x7F) |
| GEN_do_locked_imm_E(adcb,al,0xF1) |
| GEN_do_locked_imm_E(adcw,ax,0x7E) |
| GEN_do_locked_imm_E(adcw,ax,0x9325) |
| GEN_do_locked_imm_E(adcl,eax,0x7D) |
| GEN_do_locked_imm_E(adcl,eax,0x31415927) |
| |
| GEN_do_locked_imm_E(sbbb,al,0x7F) |
| GEN_do_locked_imm_E(sbbb,al,0xF1) |
| GEN_do_locked_imm_E(sbbw,ax,0x7E) |
| GEN_do_locked_imm_E(sbbw,ax,0x9325) |
| GEN_do_locked_imm_E(sbbl,eax,0x7D) |
| GEN_do_locked_imm_E(sbbl,eax,0x31415927) |
| |
| GEN_do_locked_imm_E(andb,al,0x7F) |
| GEN_do_locked_imm_E(andb,al,0xF1) |
| GEN_do_locked_imm_E(andw,ax,0x7E) |
| GEN_do_locked_imm_E(andw,ax,0x9325) |
| GEN_do_locked_imm_E(andl,eax,0x7D) |
| GEN_do_locked_imm_E(andl,eax,0x31415927) |
| |
| GEN_do_locked_imm_E(subb,al,0x7F) |
| GEN_do_locked_imm_E(subb,al,0xF1) |
| GEN_do_locked_imm_E(subw,ax,0x7E) |
| GEN_do_locked_imm_E(subw,ax,0x9325) |
| GEN_do_locked_imm_E(subl,eax,0x7D) |
| GEN_do_locked_imm_E(subl,eax,0x31415927) |
| |
| GEN_do_locked_imm_E(xorb,al,0x7F) |
| GEN_do_locked_imm_E(xorb,al,0xF1) |
| GEN_do_locked_imm_E(xorw,ax,0x7E) |
| GEN_do_locked_imm_E(xorw,ax,0x9325) |
| GEN_do_locked_imm_E(xorl,eax,0x7D) |
| GEN_do_locked_imm_E(xorl,eax,0x31415927) |
| |
| #define GEN_do_locked_unary_E(_name,_eax) \ |
| \ |
| __attribute__((noinline)) void do_locked_unary_E_##_name ( void ) \ |
| { \ |
| volatile int e_val, e_val_before; \ |
| int o, s, z, a, c, p, v2, flags_in; \ |
| int block[3]; \ |
| \ |
| for (v2 = 0; v2 < NVALS; v2++) { \ |
| \ |
| for (o = 0; o < 2; o++) { \ |
| for (s = 0; s < 2; s++) { \ |
| for (z = 0; z < 2; z++) { \ |
| for (a = 0; a < 2; a++) { \ |
| for (c = 0; c < 2; c++) { \ |
| for (p = 0; p < 2; p++) { \ |
| \ |
| flags_in = (o ? CC_O : 0) \ |
| | (s ? CC_S : 0) \ |
| | (z ? CC_Z : 0) \ |
| | (a ? CC_A : 0) \ |
| | (c ? CC_C : 0) \ |
| | (p ? CC_P : 0); \ |
| \ |
| e_val = val[v2]; \ |
| e_val_before = e_val; \ |
| \ |
| block[0] = flags_in; \ |
| block[1] = (int)(long)&e_val; \ |
| block[2] = 0; \ |
| __asm__ __volatile__( \ |
| "movl 0(%0), %%eax\n\t" \ |
| "pushl %%eax\n\t" \ |
| "popfl\n\t" \ |
| "movl 4(%0), %%ebx\n\t" \ |
| "lock; " #_name " (%%ebx)\n\t" \ |
| "pushfl\n\t" \ |
| "popl %%eax\n\t" \ |
| "movl %%eax, 8(%0)\n\t" \ |
| : : "r"(&block[0]) : "eax","ebx","cc","memory" \ |
| ); \ |
| \ |
| send( \ |
| sprintf(outBuf, \ |
| "%s E=%08x CCIN=%08x -> E=%08x CCOUT=%08x\n", \ |
| #_name, e_val_before, flags_in, \ |
| e_val, block[2] & CC_MASK)); \ |
| \ |
| }}}}}} \ |
| \ |
| } \ |
| } |
| |
| GEN_do_locked_unary_E(decb,al) |
| GEN_do_locked_unary_E(decw,ax) |
| GEN_do_locked_unary_E(decl,eax) |
| |
| GEN_do_locked_unary_E(incb,al) |
| GEN_do_locked_unary_E(incw,ax) |
| GEN_do_locked_unary_E(incl,eax) |
| |
| GEN_do_locked_unary_E(negb,al) |
| GEN_do_locked_unary_E(negw,ax) |
| GEN_do_locked_unary_E(negl,eax) |
| |
| GEN_do_locked_unary_E(notb,al) |
| GEN_do_locked_unary_E(notw,ax) |
| GEN_do_locked_unary_E(notl,eax) |
| |
| |
| ///////////////////////////////////////////////////////////////// |
| |
| unsigned int btsl_mem ( UChar* base, int bitno ) |
| { |
| unsigned char res; |
| __asm__ |
| __volatile__("lock; btsl\t%2, %0\n\t" |
| "setc\t%1" |
| : "=m" (*base), "=q" (res) |
| : "r" (bitno)); |
| /* Pretty meaningless to dereference base here, but that's what you |
| have to do to get a btsl insn which refers to memory starting at |
| base. */ |
| return res; |
| } |
| unsigned int btsw_mem ( UChar* base, int bitno ) |
| { |
| unsigned char res; |
| __asm__ |
| __volatile__("lock; btsw\t%w2, %0\n\t" |
| "setc\t%1" |
| : "=m" (*base), "=q" (res) |
| : "r" (bitno)); |
| return res; |
| } |
| |
| unsigned int btrl_mem ( UChar* base, int bitno ) |
| { |
| unsigned char res; |
| __asm__ |
| __volatile__("lock; btrl\t%2, %0\n\t" |
| "setc\t%1" |
| : "=m" (*base), "=q" (res) |
| : "r" (bitno)); |
| return res; |
| } |
| unsigned int btrw_mem ( UChar* base, int bitno ) |
| { |
| unsigned char res; |
| __asm__ |
| __volatile__("lock; btrw\t%w2, %0\n\t" |
| "setc\t%1" |
| : "=m" (*base), "=q" (res) |
| : "r" (bitno)); |
| return res; |
| } |
| |
| unsigned int btcl_mem ( UChar* base, int bitno ) |
| { |
| unsigned char res; |
| __asm__ |
| __volatile__("lock; btcl\t%2, %0\n\t" |
| "setc\t%1" |
| : "=m" (*base), "=q" (res) |
| : "r" (bitno)); |
| return res; |
| } |
| unsigned int btcw_mem ( UChar* base, int bitno ) |
| { |
| unsigned char res; |
| __asm__ |
| __volatile__("lock; btcw\t%w2, %0\n\t" |
| "setc\t%1" |
| : "=m" (*base), "=q" (res) |
| : "r" (bitno)); |
| return res; |
| } |
| |
| unsigned int btl_mem ( UChar* base, int bitno ) |
| { |
| unsigned char res; |
| __asm__ |
| __volatile__("btl\t%2, %0\n\t" |
| "setc\t%1" |
| : "=m" (*base), "=q" (res) |
| : "r" (bitno) |
| : "cc", "memory"); |
| return res; |
| } |
| unsigned int btw_mem ( UChar* base, int bitno ) |
| { |
| unsigned char res; |
| __asm__ |
| __volatile__("btw\t%w2, %0\n\t" |
| "setc\t%1" |
| : "=m" (*base), "=q" (res) |
| : "r" (bitno)); |
| return res; |
| } |
| |
| ULong rol1 ( ULong x ) |
| { |
| return (x << 1) | (x >> 63); |
| } |
| |
| void do_bt_G_E_tests ( void ) |
| { |
| UInt n, bitoff, op; |
| UInt c; |
| UChar* block; |
| ULong carrydep, res;; |
| |
| /*------------------------ MEM-L -----------------------*/ |
| |
| carrydep = 0; |
| block = calloc(200,1); |
| block += 100; |
| /* Valid bit offsets are -800 .. 799 inclusive. */ |
| |
| for (n = 0; n < 10000; n++) { |
| bitoff = (random() % 1600) - 800; |
| op = random() % 4; |
| c = 2; |
| switch (op) { |
| case 0: c = btsl_mem(block, bitoff); break; |
| case 1: c = btrl_mem(block, bitoff); break; |
| case 2: c = btcl_mem(block, bitoff); break; |
| case 3: c = btl_mem(block, bitoff); break; |
| } |
| c &= 255; |
| assert(c == 0 || c == 1); |
| carrydep = c ? (rol1(carrydep) ^ (Long)(Int)bitoff) : carrydep; |
| } |
| |
| /* Compute final result */ |
| block -= 100; |
| res = 0; |
| for (n = 0; n < 200; n++) { |
| UChar ch = block[n]; |
| /* printf("%d ", (int)block[n]); */ |
| res = rol1(res) ^ (ULong)ch; |
| } |
| |
| send( sprintf(outBuf, |
| "bt{s,r,c}l: final res 0x%llx, carrydep 0x%llx\n", |
| res, carrydep )); |
| free(block); |
| |
| /*------------------------ MEM-W -----------------------*/ |
| |
| carrydep = 0; |
| block = calloc(200,1); |
| block += 100; |
| /* Valid bit offsets are -800 .. 799 inclusive. */ |
| |
| for (n = 0; n < 10000; n++) { |
| bitoff = (random() % 1600) - 800; |
| op = random() % 4; |
| c = 2; |
| switch (op) { |
| case 0: c = btsw_mem(block, bitoff); break; |
| case 1: c = btrw_mem(block, bitoff); break; |
| case 2: c = btcw_mem(block, bitoff); break; |
| case 3: c = btw_mem(block, bitoff); break; |
| } |
| c &= 255; |
| assert(c == 0 || c == 1); |
| carrydep = c ? (rol1(carrydep) ^ (Long)(Int)bitoff) : carrydep; |
| } |
| |
| /* Compute final result */ |
| block -= 100; |
| res = 0; |
| for (n = 0; n < 200; n++) { |
| UChar ch = block[n]; |
| /* printf("%d ", (int)block[n]); */ |
| res = rol1(res) ^ (ULong)ch; |
| } |
| |
| send( sprintf(outBuf, |
| "bt{s,r,c}w: final res 0x%llx, carrydep 0x%llx\n", |
| res, carrydep )); |
| free(block); |
| } |
| |
| |
| ///////////////////////////////////////////////////////////////// |
| |
| /* Given a word, do bt/bts/btr/btc on bits 0, 1, 2 and 3 of it, and |
| also reconstruct the original bits 0, 1, 2, 3 by looking at the |
| carry flag. Returned result has mashed bits 0-3 at the bottom and |
| the reconstructed original bits 0-3 as 4-7. */ |
| |
| UInt mash_mem_L ( UInt* origp ) |
| { |
| UInt reconstructed, mashed; |
| __asm__ __volatile__ ( |
| "movl %2, %%edx\n\t" |
| "" |
| "movl $0, %%eax\n\t" |
| "\n\t" |
| "btl $0, (%%edx)\n\t" |
| "setb %%cl\n\t" |
| "movzbl %%cl, %%ecx\n\t" |
| "orl %%ecx, %%eax\n\t" |
| "\n\t" |
| "lock; btsl $1, (%%edx)\n\t" |
| "setb %%cl\n\t" |
| "movzbl %%cl, %%ecx\n\t" |
| "shll $1, %%ecx\n\t" |
| "orl %%ecx, %%eax\n\t" |
| "\n\t" |
| "lock; btrl $2, (%%edx)\n\t" |
| "setb %%cl\n\t" |
| "movzbl %%cl, %%ecx\n\t" |
| "shll $2, %%ecx\n\t" |
| "orl %%ecx, %%eax\n\t" |
| "\n\t" |
| "lock; btcl $3, (%%edx)\n\t" |
| "setb %%cl\n\t" |
| "movzbl %%cl, %%ecx\n\t" |
| "shll $3, %%ecx\n\t" |
| "orl %%ecx, %%eax\n\t" |
| "\n\t" |
| "movl %%eax, %0\n\t" |
| "movl (%%edx), %1" |
| |
| : "=r" (reconstructed), "=r" (mashed) |
| : "r" (origp) |
| : "eax", "ecx", "edx", "cc"); |
| return (mashed & 0xF) | ((reconstructed & 0xF) << 4); |
| } |
| |
| UInt mash_mem_W ( UShort* origp ) |
| { |
| UInt reconstructed, mashed; |
| __asm__ __volatile__ ( |
| "movl %2, %%edx\n\t" |
| "" |
| "movl $0, %%eax\n\t" |
| "\n\t" |
| "btw $0, (%%edx)\n\t" |
| "setb %%cl\n\t" |
| "movzbl %%cl, %%ecx\n\t" |
| "orl %%ecx, %%eax\n\t" |
| "\n\t" |
| "lock; btsw $1, (%%edx)\n\t" |
| "setb %%cl\n\t" |
| "movzbl %%cl, %%ecx\n\t" |
| "shll $1, %%ecx\n\t" |
| "orl %%ecx, %%eax\n\t" |
| "\n\t" |
| "lock; btrw $2, (%%edx)\n\t" |
| "setb %%cl\n\t" |
| "movzbl %%cl, %%ecx\n\t" |
| "shll $2, %%ecx\n\t" |
| "orl %%ecx, %%eax\n\t" |
| "\n\t" |
| "lock; btcw $3, (%%edx)\n\t" |
| "setb %%cl\n\t" |
| "movzbl %%cl, %%ecx\n\t" |
| "shll $3, %%ecx\n\t" |
| "orl %%ecx, %%eax\n\t" |
| "\n\t" |
| "movl %%eax, %0\n\t" |
| "movzwl (%%edx), %1" |
| |
| : "=r" (reconstructed), "=r" (mashed) |
| : "r" (origp) |
| : "eax", "ecx", "edx", "cc"); |
| return (mashed & 0xF) | ((reconstructed & 0xF) << 4); |
| } |
| |
| |
| void do_bt_imm_E_tests( void ) |
| { |
| int i; |
| UInt* iil = malloc(sizeof(UInt)); |
| UShort* iiw = malloc(sizeof(UShort)); |
| for (i = 0; i < 0x10; i++) { |
| *iil = i; |
| *iiw = i; |
| send( sprintf(outBuf, "0x%x -> 0x%02x 0x%02x\n", i, |
| mash_mem_L(iil), mash_mem_W(iiw))); |
| } |
| free(iil); |
| free(iiw); |
| } |
| |
| |
| |
| ///////////////////////////////////////////////////////////////// |
| |
| int main ( void ) |
| { |
| do_locked_G_E_addb(); |
| do_locked_G_E_addw(); |
| do_locked_G_E_addl(); |
| |
| do_locked_G_E_orb(); |
| do_locked_G_E_orw(); |
| do_locked_G_E_orl(); |
| |
| do_locked_G_E_adcb(); |
| do_locked_G_E_adcw(); |
| do_locked_G_E_adcl(); |
| |
| do_locked_G_E_sbbb(); |
| do_locked_G_E_sbbw(); |
| do_locked_G_E_sbbl(); |
| |
| do_locked_G_E_andb(); |
| do_locked_G_E_andw(); |
| do_locked_G_E_andl(); |
| |
| do_locked_G_E_subb(); |
| do_locked_G_E_subw(); |
| do_locked_G_E_subl(); |
| |
| do_locked_G_E_xorb(); |
| do_locked_G_E_xorw(); |
| do_locked_G_E_xorl(); |
| //21 |
| do_locked_imm_E_addb_0x7F(); |
| do_locked_imm_E_addb_0xF1(); |
| do_locked_imm_E_addw_0x7E(); |
| do_locked_imm_E_addw_0x9325(); |
| do_locked_imm_E_addl_0x7D(); |
| do_locked_imm_E_addl_0x31415927(); |
| |
| do_locked_imm_E_orb_0x7F(); |
| do_locked_imm_E_orb_0xF1(); |
| do_locked_imm_E_orw_0x7E(); |
| do_locked_imm_E_orw_0x9325(); |
| do_locked_imm_E_orl_0x7D(); |
| do_locked_imm_E_orl_0x31415927(); |
| |
| do_locked_imm_E_adcb_0x7F(); |
| do_locked_imm_E_adcb_0xF1(); |
| do_locked_imm_E_adcw_0x7E(); |
| do_locked_imm_E_adcw_0x9325(); |
| do_locked_imm_E_adcl_0x7D(); |
| do_locked_imm_E_adcl_0x31415927(); |
| |
| do_locked_imm_E_sbbb_0x7F(); |
| do_locked_imm_E_sbbb_0xF1(); |
| do_locked_imm_E_sbbw_0x7E(); |
| do_locked_imm_E_sbbw_0x9325(); |
| do_locked_imm_E_sbbl_0x7D(); |
| do_locked_imm_E_sbbl_0x31415927(); |
| |
| do_locked_imm_E_andb_0x7F(); |
| do_locked_imm_E_andb_0xF1(); |
| do_locked_imm_E_andw_0x7E(); |
| do_locked_imm_E_andw_0x9325(); |
| do_locked_imm_E_andl_0x7D(); |
| do_locked_imm_E_andl_0x31415927(); |
| |
| do_locked_imm_E_subb_0x7F(); |
| do_locked_imm_E_subb_0xF1(); |
| do_locked_imm_E_subw_0x7E(); |
| do_locked_imm_E_subw_0x9325(); |
| do_locked_imm_E_subl_0x7D(); |
| do_locked_imm_E_subl_0x31415927(); |
| |
| do_locked_imm_E_xorb_0x7F(); |
| do_locked_imm_E_xorb_0xF1(); |
| do_locked_imm_E_xorw_0x7E(); |
| do_locked_imm_E_xorw_0x9325(); |
| do_locked_imm_E_xorl_0x7D(); |
| do_locked_imm_E_xorl_0x31415927(); |
| // 63 |
| do_locked_unary_E_decb(); |
| do_locked_unary_E_decw(); |
| do_locked_unary_E_decl(); |
| |
| do_locked_unary_E_incb(); |
| do_locked_unary_E_incw(); |
| do_locked_unary_E_incl(); |
| |
| do_locked_unary_E_negb(); |
| do_locked_unary_E_negw(); |
| do_locked_unary_E_negl(); |
| |
| do_locked_unary_E_notb(); |
| do_locked_unary_E_notw(); |
| do_locked_unary_E_notl(); |
| // 75 |
| do_bt_G_E_tests(); |
| // 81 |
| do_bt_imm_E_tests(); |
| // 87 |
| // So there should be 87 lock-prefixed instructions in the |
| // disassembly of this compilation unit. |
| // confirm with |
| // objdump -d ./x86locked | grep lock | grep -v do_lock | grep -v elf32 | wc |
| |
| { UInt crcExpd = 0x8235DC9C; |
| theCRC = crcFinalise( theCRC ); |
| if (theCRC == crcExpd) { |
| printf("x86locked: PASS: CRCs actual 0x%08X expected 0x%08X\n", |
| theCRC, crcExpd); |
| } else { |
| printf("x86locked: FAIL: CRCs actual 0x%08X expected 0x%08X\n", |
| theCRC, crcExpd); |
| printf("x86locked: set #define VERBOSE 1 to diagnose\n"); |
| } |
| } |
| |
| return 0; |
| } |
