#include #include #include #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; unsigned myrandom(void) { /* Simple multiply-with-carry random generator. */ static unsigned m_w = 11; static unsigned m_z = 13; m_z = 36969 * (m_z & 65535) + (m_z >> 16); m_w = 18000 * (m_w & 65535) + (m_w >> 16); return (m_z << 16) + m_w; } ///////////////////////////////////////////////////////////////// // 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 76 static ULong val[NVALS] = { 0x00ULL, 0x01ULL, 0x02ULL, 0x03ULL, 0x3FULL, 0x40ULL, 0x41ULL, 0x7EULL, 0x7FULL, 0x80ULL, 0x81ULL, 0x82ULL, 0xBFULL, 0xC0ULL, 0xC1ULL, 0xFCULL, 0xFDULL, 0xFEULL, 0xFFULL, 0xFF00ULL, 0xFF01ULL, 0xFF02ULL, 0xFF03ULL, 0xFF3FULL, 0xFF40ULL, 0xFF41ULL, 0xFF7EULL, 0xFF7FULL, 0xFF80ULL, 0xFF81ULL, 0xFF82ULL, 0xFFBFULL, 0xFFC0ULL, 0xFFC1ULL, 0xFFFCULL, 0xFFFDULL, 0xFFFEULL, 0xFFFFULL, 0xFFFFFF00ULL, 0xFFFFFF01ULL, 0xFFFFFF02ULL, 0xFFFFFF03ULL, 0xFFFFFF3FULL, 0xFFFFFF40ULL, 0xFFFFFF41ULL, 0xFFFFFF7EULL, 0xFFFFFF7FULL, 0xFFFFFF80ULL, 0xFFFFFF81ULL, 0xFFFFFF82ULL, 0xFFFFFFBFULL, 0xFFFFFFC0ULL, 0xFFFFFFC1ULL, 0xFFFFFFFCULL, 0xFFFFFFFDULL, 0xFFFFFFFEULL, 0xFFFFFFFFULL, 0xFFFFFFFFFFFFFF00ULL, 0xFFFFFFFFFFFFFF01ULL, 0xFFFFFFFFFFFFFF02ULL, 0xFFFFFFFFFFFFFF03ULL, 0xFFFFFFFFFFFFFF3FULL, 0xFFFFFFFFFFFFFF40ULL, 0xFFFFFFFFFFFFFF41ULL, 0xFFFFFFFFFFFFFF7EULL, 0xFFFFFFFFFFFFFF7FULL, 0xFFFFFFFFFFFFFF80ULL, 0xFFFFFFFFFFFFFF81ULL, 0xFFFFFFFFFFFFFF82ULL, 0xFFFFFFFFFFFFFFBFULL, 0xFFFFFFFFFFFFFFC0ULL, 0xFFFFFFFFFFFFFFC1ULL, 0xFFFFFFFFFFFFFFFCULL, 0xFFFFFFFFFFFFFFFDULL, 0xFFFFFFFFFFFFFFFEULL, 0xFFFFFFFFFFFFFFFFULL }; #else // shortened version, for use as valgrind regtest #define NVALS 36 static ULong val[NVALS] = { 0x00ULL, 0x01ULL, 0x3FULL, 0x40ULL, 0x7FULL, 0x80ULL, 0xBFULL, 0xC0ULL, 0xFFULL, 0xFF00ULL, 0xFF01ULL, 0xFF3FULL, 0xFF40ULL, 0xFF7FULL, 0xFF80ULL, 0xFFBFULL, 0xFFC0ULL, 0xFFFFULL, 0xFFFFFF00ULL, 0xFFFFFF01ULL, 0xFFFFFF3FULL, 0xFFFFFF40ULL, 0xFFFFFF7EULL, 0xFFFFFF7FULL, 0xFFFFFFBFULL, 0xFFFFFFC0ULL, 0xFFFFFFFFULL, 0xFFFFFFFFFFFFFF00ULL, 0xFFFFFFFFFFFFFF01ULL, 0xFFFFFFFFFFFFFF3FULL, 0xFFFFFFFFFFFFFF40ULL, 0xFFFFFFFFFFFFFF7FULL, 0xFFFFFFFFFFFFFF80ULL, 0xFFFFFFFFFFFFFFBFULL, 0xFFFFFFFFFFFFFFC0ULL, 0xFFFFFFFFFFFFFFFFULL }; #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 Long e_val, g_val, e_val_before; \ Long o, s, z, a, c, p, v1, v2, flags_in; \ Long 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] = (long)&e_val; \ block[3] = 0; \ __asm__ __volatile__( \ "movq 0(%0), %%rax\n\t" \ "pushq %%rax\n\t" \ "popfq\n\t" \ "movq 8(%0), %%rax\n\t" \ "movq 16(%0), %%rbx\n\t" \ "lock; " #_name " %%" #_eax ",(%%rbx)\n\t" \ "pushfq\n\t" \ "popq %%rax\n\t" \ "movq %%rax, 24(%0)\n\t" \ : : "r"(&block[0]) : "rax","rbx","cc","memory" \ ); \ \ send( \ sprintf(outBuf, \ "%s G=%016llx E=%016llx CCIN=%08llx -> E=%016llx CCOUT=%08llx\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(addq,rax) 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(orq, rax) 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(adcq,rax) 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(sbbq,rax) 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(andq,rax) 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(subq,rax) GEN_do_locked_G_E(xorb,al) GEN_do_locked_G_E(xorw,ax) GEN_do_locked_G_E(xorl,eax) GEN_do_locked_G_E(xorq,rax) #define GEN_do_locked_imm_E(_name,_eax,_imm) \ \ __attribute__((noinline)) void do_locked_imm_E_##_name##_##_imm ( void ) \ { \ volatile Long e_val, e_val_before; \ Long o, s, z, a, c, p, v2, flags_in; \ Long 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] = (long)&e_val; \ block[2] = 0; \ __asm__ __volatile__( \ "movq 0(%0), %%rax\n\t" \ "pushq %%rax\n\t" \ "popfq\n\t" \ "movq 8(%0), %%rbx\n\t" \ "lock; " #_name " $" #_imm ",(%%rbx)\n\t" \ "pushfq\n\t" \ "popq %%rax\n\t" \ "movq %%rax, 16(%0)\n\t" \ : : "r"(&block[0]) : "rax","rbx","cc","memory" \ ); \ \ send( \ sprintf(outBuf, \ "%s I=%s E=%016llx CCIN=%08llx -> E=%016llx CCOUT=%08llx\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(addq,rax,0x7D) GEN_do_locked_imm_E(addq,rax,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(orq,rax,0x7D) GEN_do_locked_imm_E(orq,rax,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(adcq,rax,0x7D) GEN_do_locked_imm_E(adcq,rax,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(sbbq,rax,0x7D) GEN_do_locked_imm_E(sbbq,rax,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(andq,rax,0x7D) GEN_do_locked_imm_E(andq,rax,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(subq,rax,0x7D) GEN_do_locked_imm_E(subq,rax,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) GEN_do_locked_imm_E(xorq,rax,0x7D) GEN_do_locked_imm_E(xorq,rax,0x31415927) #define GEN_do_locked_unary_E(_name,_eax) \ \ __attribute__((noinline)) void do_locked_unary_E_##_name ( void ) \ { \ volatile Long e_val, e_val_before; \ Long o, s, z, a, c, p, v2, flags_in; \ Long 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] = (long)&e_val; \ block[2] = 0; \ __asm__ __volatile__( \ "movq 0(%0), %%rax\n\t" \ "pushq %%rax\n\t" \ "popfq\n\t" \ "movq 8(%0), %%rbx\n\t" \ "lock; " #_name " (%%rbx)\n\t" \ "pushfq\n\t" \ "popq %%rax\n\t" \ "movq %%rax, 16(%0)\n\t" \ : : "r"(&block[0]) : "rax","rbx","cc","memory" \ ); \ \ send( \ sprintf(outBuf, \ "%s E=%016llx CCIN=%08llx -> E=%016llx CCOUT=%08llx\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(decq,rax) 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(incq,rax) 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(negq,rax) GEN_do_locked_unary_E(notb,al) GEN_do_locked_unary_E(notw,ax) GEN_do_locked_unary_E(notl,eax) GEN_do_locked_unary_E(notq,rax) ///////////////////////////////////////////////////////////////// ULong btsq_mem ( UChar* base, int bitno ) { ULong res; __asm__ __volatile__("lock; btsq\t%2, %0\n\t" "setc %%dl\n\t" "movzbq %%dl,%1\n" : "=m" (*base), "=r" (res) : "r" ((ULong)bitno) : "rdx","cc","memory" ); /* 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; } ULong btsl_mem ( UChar* base, int bitno ) { ULong res; __asm__ __volatile__("lock; btsl\t%2, %0\n\t" "setc %%dl\n\t" "movzbq %%dl,%1\n" : "=m" (*base), "=r" (res) : "r" ((UInt)bitno)); return res; } ULong btsw_mem ( UChar* base, int bitno ) { ULong res; __asm__ __volatile__("lock; btsw\t%w2, %0\n\t" "setc %%dl\n\t" "movzbq %%dl,%1\n" : "=m" (*base), "=r" (res) : "r" ((ULong)bitno)); return res; } ULong btrq_mem ( UChar* base, int bitno ) { ULong res; __asm__ __volatile__("lock; btrq\t%2, %0\n\t" "setc %%dl\n\t" "movzbq %%dl,%1\n" : "=m" (*base), "=r" (res) : "r" ((ULong)bitno)); return res; } ULong btrl_mem ( UChar* base, int bitno ) { ULong res; __asm__ __volatile__("lock; btrl\t%2, %0\n\t" "setc %%dl\n\t" "movzbq %%dl,%1\n" : "=m" (*base), "=r" (res) : "r" ((UInt)bitno)); return res; } ULong btrw_mem ( UChar* base, int bitno ) { ULong res; __asm__ __volatile__("lock; btrw\t%w2, %0\n\t" "setc %%dl\n\t" "movzbq %%dl,%1\n" : "=m" (*base), "=r" (res) : "r" ((ULong)bitno)); return res; } ULong btcq_mem ( UChar* base, int bitno ) { ULong res; __asm__ __volatile__("lock; btcq\t%2, %0\n\t" "setc %%dl\n\t" "movzbq %%dl,%1\n" : "=m" (*base), "=r" (res) : "r" ((ULong)bitno)); return res; } ULong btcl_mem ( UChar* base, int bitno ) { ULong res; __asm__ __volatile__("lock; btcl\t%2, %0\n\t" "setc %%dl\n\t" "movzbq %%dl,%1\n" : "=m" (*base), "=r" (res) : "r" ((UInt)bitno)); return res; } ULong btcw_mem ( UChar* base, int bitno ) { ULong res; __asm__ __volatile__("lock; btcw\t%w2, %0\n\t" "setc %%dl\n\t" "movzbq %%dl,%1\n" : "=m" (*base), "=r" (res) : "r" ((ULong)bitno)); return res; } ULong btq_mem ( UChar* base, int bitno ) { ULong res; __asm__ __volatile__("btq\t%2, %0\n\t" "setc %%dl\n\t" "movzbq %%dl,%1\n" : "=m" (*base), "=r" (res) : "r" ((ULong)bitno) : "cc", "memory"); return res; } ULong btl_mem ( UChar* base, int bitno ) { ULong res; __asm__ __volatile__("btl\t%2, %0\n\t" "setc %%dl\n\t" "movzbq %%dl,%1\n" : "=m" (*base), "=r" (res) : "r" ((UInt)bitno) : "cc", "memory"); return res; } ULong btw_mem ( UChar* base, int bitno ) { ULong res; __asm__ __volatile__("btw\t%w2, %0\n\t" "setc %%dl\n\t" "movzbq %%dl,%1\n" : "=m" (*base), "=r" (res) : "r" ((ULong)bitno)); return res; } ULong rol1 ( ULong x ) { return (x << 1) | (x >> 63); } void do_bt_G_E_tests ( void ) { ULong n, bitoff, op; ULong c; UChar* block; ULong carrydep, res;; /*------------------------ MEM-Q -----------------------*/ carrydep = 0; block = calloc(200,1); block += 100; /* Valid bit offsets are -800 .. 799 inclusive. */ for (n = 0; n < 10000; n++) { bitoff = (myrandom() % 1600) - 800; op = myrandom() % 4; c = 2; switch (op) { case 0: c = btsq_mem(block, bitoff); break; case 1: c = btrq_mem(block, bitoff); break; case 2: c = btcq_mem(block, bitoff); break; case 3: c = btq_mem(block, bitoff); break; } c &= 255; assert(c == 0 || c == 1); carrydep = c ? (rol1(carrydep) ^ (Long)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}q: final res 0x%llx, carrydep 0x%llx\n", res, carrydep)); free(block); /*------------------------ MEM-L -----------------------*/ carrydep = 0; block = calloc(200,1); block += 100; /* Valid bit offsets are -800 .. 799 inclusive. */ for (n = 0; n < 10000; n++) { bitoff = (myrandom() % 1600) - 800; op = myrandom() % 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 = (myrandom() % 1600) - 800; op = myrandom() % 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. */ ULong mash_mem_Q ( ULong* origp ) { ULong reconstructed, mashed; __asm__ __volatile__ ( "movq %2, %%rdx\n\t" "" "movq $0, %%rax\n\t" "\n\t" "btq $0, (%%rdx)\n\t" "setb %%cl\n\t" "movzbq %%cl, %%rcx\n\t" "orq %%rcx, %%rax\n\t" "\n\t" "lock; btsq $1, (%%rdx)\n\t" "setb %%cl\n\t" "movzbq %%cl, %%rcx\n\t" "shlq $1, %%rcx\n\t" "orq %%rcx, %%rax\n\t" "\n\t" "lock; btrq $2, (%%rdx)\n\t" "setb %%cl\n\t" "movzbq %%cl, %%rcx\n\t" "shlq $2, %%rcx\n\t" "orq %%rcx, %%rax\n\t" "\n\t" "lock; btcq $3, (%%rdx)\n\t" "setb %%cl\n\t" "movzbq %%cl, %%rcx\n\t" "shlq $3, %%rcx\n\t" "orq %%rcx, %%rax\n\t" "\n\t" "movq %%rax, %0\n\t" "movq (%%rdx), %1" : "=r" (reconstructed), "=r" (mashed) : "r" (origp) : "rax", "rcx", "rdx", "cc"); return (mashed & 0xF) | ((reconstructed & 0xF) << 4); } ULong mash_mem_L ( UInt* origp ) { ULong reconstructed; UInt mashed; __asm__ __volatile__ ( "movq %2, %%rdx\n\t" "" "movq $0, %%rax\n\t" "\n\t" "btl $0, (%%rdx)\n\t" "setb %%cl\n\t" "movzbq %%cl, %%rcx\n\t" "orq %%rcx, %%rax\n\t" "\n\t" "lock; btsl $1, (%%rdx)\n\t" "setb %%cl\n\t" "movzbq %%cl, %%rcx\n\t" "shlq $1, %%rcx\n\t" "orq %%rcx, %%rax\n\t" "\n\t" "lock; btrl $2, (%%rdx)\n\t" "setb %%cl\n\t" "movzbq %%cl, %%rcx\n\t" "shlq $2, %%rcx\n\t" "orq %%rcx, %%rax\n\t" "\n\t" "lock; btcl $3, (%%rdx)\n\t" "setb %%cl\n\t" "movzbq %%cl, %%rcx\n\t" "shlq $3, %%rcx\n\t" "orq %%rcx, %%rax\n\t" "\n\t" "movq %%rax, %0\n\t" "movl (%%rdx), %1" : "=r" (reconstructed), "=r" (mashed) : "r" (origp) : "rax", "rcx", "rdx", "cc"); return (mashed & 0xF) | ((reconstructed & 0xF) << 4); } ULong mash_mem_W ( UShort* origp ) { ULong reconstructed, mashed; __asm__ __volatile__ ( "movq %2, %%rdx\n\t" "" "movq $0, %%rax\n\t" "\n\t" "btw $0, (%%rdx)\n\t" "setb %%cl\n\t" "movzbq %%cl, %%rcx\n\t" "orq %%rcx, %%rax\n\t" "\n\t" "lock; btsw $1, (%%rdx)\n\t" "setb %%cl\n\t" "movzbq %%cl, %%rcx\n\t" "shlq $1, %%rcx\n\t" "orq %%rcx, %%rax\n\t" "\n\t" "lock; btrw $2, (%%rdx)\n\t" "setb %%cl\n\t" "movzbq %%cl, %%rcx\n\t" "shlq $2, %%rcx\n\t" "orq %%rcx, %%rax\n\t" "\n\t" "lock; btcw $3, (%%rdx)\n\t" "setb %%cl\n\t" "movzbq %%cl, %%rcx\n\t" "shlq $3, %%rcx\n\t" "orq %%rcx, %%rax\n\t" "\n\t" "movq %%rax, %0\n\t" "movzwq (%%rdx), %1" : "=r" (reconstructed), "=r" (mashed) : "r" (origp) : "rax", "rcx", "rdx", "cc"); return (mashed & 0xF) | ((reconstructed & 0xF) << 4); } void do_bt_imm_E_tests( void ) { ULong i; ULong* iiq = malloc(sizeof(ULong)); UInt* iil = malloc(sizeof(UInt)); UShort* iiw = malloc(sizeof(UShort)); for (i = 0; i < 0x10; i++) { *iiq = i; *iil = i; *iiw = i; send(sprintf(outBuf,"0x%llx -> 0x%02llx 0x%02llx 0x%02llx\n", i, mash_mem_Q(iiq), mash_mem_L(iil), mash_mem_W(iiw))); } free(iiq); 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_addq(); do_locked_G_E_orb(); do_locked_G_E_orw(); do_locked_G_E_orl(); do_locked_G_E_orq(); do_locked_G_E_adcb(); do_locked_G_E_adcw(); do_locked_G_E_adcl(); do_locked_G_E_adcq(); do_locked_G_E_sbbb(); do_locked_G_E_sbbw(); do_locked_G_E_sbbl(); do_locked_G_E_sbbq(); do_locked_G_E_andb(); do_locked_G_E_andw(); do_locked_G_E_andl(); do_locked_G_E_andq(); do_locked_G_E_subb(); do_locked_G_E_subw(); do_locked_G_E_subl(); do_locked_G_E_subq(); do_locked_G_E_xorb(); do_locked_G_E_xorw(); do_locked_G_E_xorl(); do_locked_G_E_xorq(); // 4 * 7 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_addq_0x7D(); do_locked_imm_E_addq_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_orq_0x7D(); do_locked_imm_E_orq_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_adcq_0x7D(); do_locked_imm_E_adcq_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_sbbq_0x7D(); do_locked_imm_E_sbbq_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_andq_0x7D(); do_locked_imm_E_andq_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_subq_0x7D(); do_locked_imm_E_subq_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(); do_locked_imm_E_xorq_0x7D(); do_locked_imm_E_xorq_0x31415927(); // 4 * 7 + 8 * 7 == 84 do_locked_unary_E_decb(); do_locked_unary_E_decw(); do_locked_unary_E_decl(); do_locked_unary_E_decq(); do_locked_unary_E_incb(); do_locked_unary_E_incw(); do_locked_unary_E_incl(); do_locked_unary_E_incq(); do_locked_unary_E_negb(); do_locked_unary_E_negw(); do_locked_unary_E_negl(); do_locked_unary_E_negq(); do_locked_unary_E_notb(); do_locked_unary_E_notw(); do_locked_unary_E_notl(); do_locked_unary_E_notq(); // 100 do_bt_G_E_tests(); // 109 do_bt_imm_E_tests(); // 118 // So there should be 118 lock-prefixed instructions in the // disassembly of this compilation unit. // confirm with // objdump -d ./amd64locked | grep lock | grep -v do_lock | grep -v elf64 | wc { UInt crcExpd = 0xDF0656F1; theCRC = crcFinalise( theCRC ); if (theCRC == crcExpd) { printf("amd64locked: PASS: CRCs actual 0x%08X expected 0x%08X\n", theCRC, crcExpd); } else { printf("amd64locked: FAIL: CRCs actual 0x%08X expected 0x%08X\n", theCRC, crcExpd); printf("amd64locked: set #define VERBOSE 1 to diagnose\n"); } } return 0; }