From 38de4c46f2560c08a113c65bd6186ac31f1869dd Mon Sep 17 00:00:00 2001 From: Blue Swirl Date: Sat, 12 May 2012 20:39:26 +0000 Subject: x86: split condition code and shift templates Move shift templates from helper_template.h to shift_helper_template.h and the condition code helpers to cc_helper_template.h. Signed-off-by: Blue Swirl --- target-i386/cc_helper_template.h | 277 ++++++++++++++++++++++++++++ target-i386/helper_template.h | 353 ------------------------------------ target-i386/op_helper.c | 26 ++- target-i386/shift_helper_template.h | 110 +++++++++++ 4 files changed, 409 insertions(+), 357 deletions(-) create mode 100644 target-i386/cc_helper_template.h delete mode 100644 target-i386/helper_template.h create mode 100644 target-i386/shift_helper_template.h diff --git a/target-i386/cc_helper_template.h b/target-i386/cc_helper_template.h new file mode 100644 index 0000000000..ff22830f6b --- /dev/null +++ b/target-i386/cc_helper_template.h @@ -0,0 +1,277 @@ +/* + * x86 condition code helpers + * + * Copyright (c) 2008 Fabrice Bellard + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, see . + */ + +#define DATA_BITS (1 << (3 + SHIFT)) +#define SIGN_MASK (((target_ulong)1) << (DATA_BITS - 1)) + +#if DATA_BITS == 8 +#define SUFFIX b +#define DATA_TYPE uint8_t +#define DATA_MASK 0xff +#elif DATA_BITS == 16 +#define SUFFIX w +#define DATA_TYPE uint16_t +#define DATA_MASK 0xffff +#elif DATA_BITS == 32 +#define SUFFIX l +#define DATA_TYPE uint32_t +#define DATA_MASK 0xffffffff +#elif DATA_BITS == 64 +#define SUFFIX q +#define DATA_TYPE uint64_t +#define DATA_MASK 0xffffffffffffffffULL +#else +#error unhandled operand size +#endif + +/* dynamic flags computation */ + +static int glue(compute_all_add, SUFFIX)(void) +{ + int cf, pf, af, zf, sf, of; + target_long src1, src2; + + src1 = CC_SRC; + src2 = CC_DST - CC_SRC; + cf = (DATA_TYPE)CC_DST < (DATA_TYPE)src1; + pf = parity_table[(uint8_t)CC_DST]; + af = (CC_DST ^ src1 ^ src2) & 0x10; + zf = ((DATA_TYPE)CC_DST == 0) << 6; + sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80; + of = lshift((src1 ^ src2 ^ -1) & (src1 ^ CC_DST), 12 - DATA_BITS) & CC_O; + return cf | pf | af | zf | sf | of; +} + +static int glue(compute_c_add, SUFFIX)(void) +{ + int cf; + target_long src1; + + src1 = CC_SRC; + cf = (DATA_TYPE)CC_DST < (DATA_TYPE)src1; + return cf; +} + +static int glue(compute_all_adc, SUFFIX)(void) +{ + int cf, pf, af, zf, sf, of; + target_long src1, src2; + + src1 = CC_SRC; + src2 = CC_DST - CC_SRC - 1; + cf = (DATA_TYPE)CC_DST <= (DATA_TYPE)src1; + pf = parity_table[(uint8_t)CC_DST]; + af = (CC_DST ^ src1 ^ src2) & 0x10; + zf = ((DATA_TYPE)CC_DST == 0) << 6; + sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80; + of = lshift((src1 ^ src2 ^ -1) & (src1 ^ CC_DST), 12 - DATA_BITS) & CC_O; + return cf | pf | af | zf | sf | of; +} + +static int glue(compute_c_adc, SUFFIX)(void) +{ + int cf; + target_long src1; + + src1 = CC_SRC; + cf = (DATA_TYPE)CC_DST <= (DATA_TYPE)src1; + return cf; +} + +static int glue(compute_all_sub, SUFFIX)(void) +{ + int cf, pf, af, zf, sf, of; + target_long src1, src2; + + src1 = CC_DST + CC_SRC; + src2 = CC_SRC; + cf = (DATA_TYPE)src1 < (DATA_TYPE)src2; + pf = parity_table[(uint8_t)CC_DST]; + af = (CC_DST ^ src1 ^ src2) & 0x10; + zf = ((DATA_TYPE)CC_DST == 0) << 6; + sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80; + of = lshift((src1 ^ src2) & (src1 ^ CC_DST), 12 - DATA_BITS) & CC_O; + return cf | pf | af | zf | sf | of; +} + +static int glue(compute_c_sub, SUFFIX)(void) +{ + int cf; + target_long src1, src2; + + src1 = CC_DST + CC_SRC; + src2 = CC_SRC; + cf = (DATA_TYPE)src1 < (DATA_TYPE)src2; + return cf; +} + +static int glue(compute_all_sbb, SUFFIX)(void) +{ + int cf, pf, af, zf, sf, of; + target_long src1, src2; + + src1 = CC_DST + CC_SRC + 1; + src2 = CC_SRC; + cf = (DATA_TYPE)src1 <= (DATA_TYPE)src2; + pf = parity_table[(uint8_t)CC_DST]; + af = (CC_DST ^ src1 ^ src2) & 0x10; + zf = ((DATA_TYPE)CC_DST == 0) << 6; + sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80; + of = lshift((src1 ^ src2) & (src1 ^ CC_DST), 12 - DATA_BITS) & CC_O; + return cf | pf | af | zf | sf | of; +} + +static int glue(compute_c_sbb, SUFFIX)(void) +{ + int cf; + target_long src1, src2; + + src1 = CC_DST + CC_SRC + 1; + src2 = CC_SRC; + cf = (DATA_TYPE)src1 <= (DATA_TYPE)src2; + return cf; +} + +static int glue(compute_all_logic, SUFFIX)(void) +{ + int cf, pf, af, zf, sf, of; + + cf = 0; + pf = parity_table[(uint8_t)CC_DST]; + af = 0; + zf = ((DATA_TYPE)CC_DST == 0) << 6; + sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80; + of = 0; + return cf | pf | af | zf | sf | of; +} + +static int glue(compute_c_logic, SUFFIX)(void) +{ + return 0; +} + +static int glue(compute_all_inc, SUFFIX)(void) +{ + int cf, pf, af, zf, sf, of; + target_long src1, src2; + + src1 = CC_DST - 1; + src2 = 1; + cf = CC_SRC; + pf = parity_table[(uint8_t)CC_DST]; + af = (CC_DST ^ src1 ^ src2) & 0x10; + zf = ((DATA_TYPE)CC_DST == 0) << 6; + sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80; + of = ((CC_DST & DATA_MASK) == SIGN_MASK) << 11; + return cf | pf | af | zf | sf | of; +} + +#if DATA_BITS == 32 +static int glue(compute_c_inc, SUFFIX)(void) +{ + return CC_SRC; +} +#endif + +static int glue(compute_all_dec, SUFFIX)(void) +{ + int cf, pf, af, zf, sf, of; + target_long src1, src2; + + src1 = CC_DST + 1; + src2 = 1; + cf = CC_SRC; + pf = parity_table[(uint8_t)CC_DST]; + af = (CC_DST ^ src1 ^ src2) & 0x10; + zf = ((DATA_TYPE)CC_DST == 0) << 6; + sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80; + of = ((CC_DST & DATA_MASK) == ((target_ulong)SIGN_MASK - 1)) << 11; + return cf | pf | af | zf | sf | of; +} + +static int glue(compute_all_shl, SUFFIX)(void) +{ + int cf, pf, af, zf, sf, of; + + cf = (CC_SRC >> (DATA_BITS - 1)) & CC_C; + pf = parity_table[(uint8_t)CC_DST]; + af = 0; /* undefined */ + zf = ((DATA_TYPE)CC_DST == 0) << 6; + sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80; + /* of is defined if shift count == 1 */ + of = lshift(CC_SRC ^ CC_DST, 12 - DATA_BITS) & CC_O; + return cf | pf | af | zf | sf | of; +} + +static int glue(compute_c_shl, SUFFIX)(void) +{ + return (CC_SRC >> (DATA_BITS - 1)) & CC_C; +} + +#if DATA_BITS == 32 +static int glue(compute_c_sar, SUFFIX)(void) +{ + return CC_SRC & 1; +} +#endif + +static int glue(compute_all_sar, SUFFIX)(void) +{ + int cf, pf, af, zf, sf, of; + + cf = CC_SRC & 1; + pf = parity_table[(uint8_t)CC_DST]; + af = 0; /* undefined */ + zf = ((DATA_TYPE)CC_DST == 0) << 6; + sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80; + /* of is defined if shift count == 1 */ + of = lshift(CC_SRC ^ CC_DST, 12 - DATA_BITS) & CC_O; + return cf | pf | af | zf | sf | of; +} + +#if DATA_BITS == 32 +static int glue(compute_c_mul, SUFFIX)(void) +{ + int cf; + + cf = (CC_SRC != 0); + return cf; +} +#endif + +/* NOTE: we compute the flags like the P4. On olders CPUs, only OF and + CF are modified and it is slower to do that. */ +static int glue(compute_all_mul, SUFFIX)(void) +{ + int cf, pf, af, zf, sf, of; + + cf = (CC_SRC != 0); + pf = parity_table[(uint8_t)CC_DST]; + af = 0; /* undefined */ + zf = ((DATA_TYPE)CC_DST == 0) << 6; + sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80; + of = cf << 11; + return cf | pf | af | zf | sf | of; +} + +#undef DATA_BITS +#undef SIGN_MASK +#undef DATA_TYPE +#undef DATA_MASK +#undef SUFFIX diff --git a/target-i386/helper_template.h b/target-i386/helper_template.h deleted file mode 100644 index 8b2d4f08f9..0000000000 --- a/target-i386/helper_template.h +++ /dev/null @@ -1,353 +0,0 @@ -/* - * i386 helpers - * - * Copyright (c) 2008 Fabrice Bellard - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2 of the License, or (at your option) any later version. - * - * This library is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with this library; if not, see . - */ - -#define DATA_BITS (1 << (3 + SHIFT)) -#define SHIFT_MASK (DATA_BITS - 1) -#define SIGN_MASK (((target_ulong)1) << (DATA_BITS - 1)) -#if DATA_BITS <= 32 -#define SHIFT1_MASK 0x1f -#else -#define SHIFT1_MASK 0x3f -#endif - -#if DATA_BITS == 8 -#define SUFFIX b -#define DATA_TYPE uint8_t -#define DATA_STYPE int8_t -#define DATA_MASK 0xff -#elif DATA_BITS == 16 -#define SUFFIX w -#define DATA_TYPE uint16_t -#define DATA_STYPE int16_t -#define DATA_MASK 0xffff -#elif DATA_BITS == 32 -#define SUFFIX l -#define DATA_TYPE uint32_t -#define DATA_STYPE int32_t -#define DATA_MASK 0xffffffff -#elif DATA_BITS == 64 -#define SUFFIX q -#define DATA_TYPE uint64_t -#define DATA_STYPE int64_t -#define DATA_MASK 0xffffffffffffffffULL -#else -#error unhandled operand size -#endif - -/* dynamic flags computation */ - -static int glue(compute_all_add, SUFFIX)(void) -{ - int cf, pf, af, zf, sf, of; - target_long src1, src2; - - src1 = CC_SRC; - src2 = CC_DST - CC_SRC; - cf = (DATA_TYPE)CC_DST < (DATA_TYPE)src1; - pf = parity_table[(uint8_t)CC_DST]; - af = (CC_DST ^ src1 ^ src2) & 0x10; - zf = ((DATA_TYPE)CC_DST == 0) << 6; - sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80; - of = lshift((src1 ^ src2 ^ -1) & (src1 ^ CC_DST), 12 - DATA_BITS) & CC_O; - return cf | pf | af | zf | sf | of; -} - -static int glue(compute_c_add, SUFFIX)(void) -{ - int cf; - target_long src1; - - src1 = CC_SRC; - cf = (DATA_TYPE)CC_DST < (DATA_TYPE)src1; - return cf; -} - -static int glue(compute_all_adc, SUFFIX)(void) -{ - int cf, pf, af, zf, sf, of; - target_long src1, src2; - - src1 = CC_SRC; - src2 = CC_DST - CC_SRC - 1; - cf = (DATA_TYPE)CC_DST <= (DATA_TYPE)src1; - pf = parity_table[(uint8_t)CC_DST]; - af = (CC_DST ^ src1 ^ src2) & 0x10; - zf = ((DATA_TYPE)CC_DST == 0) << 6; - sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80; - of = lshift((src1 ^ src2 ^ -1) & (src1 ^ CC_DST), 12 - DATA_BITS) & CC_O; - return cf | pf | af | zf | sf | of; -} - -static int glue(compute_c_adc, SUFFIX)(void) -{ - int cf; - target_long src1; - - src1 = CC_SRC; - cf = (DATA_TYPE)CC_DST <= (DATA_TYPE)src1; - return cf; -} - -static int glue(compute_all_sub, SUFFIX)(void) -{ - int cf, pf, af, zf, sf, of; - target_long src1, src2; - - src1 = CC_DST + CC_SRC; - src2 = CC_SRC; - cf = (DATA_TYPE)src1 < (DATA_TYPE)src2; - pf = parity_table[(uint8_t)CC_DST]; - af = (CC_DST ^ src1 ^ src2) & 0x10; - zf = ((DATA_TYPE)CC_DST == 0) << 6; - sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80; - of = lshift((src1 ^ src2) & (src1 ^ CC_DST), 12 - DATA_BITS) & CC_O; - return cf | pf | af | zf | sf | of; -} - -static int glue(compute_c_sub, SUFFIX)(void) -{ - int cf; - target_long src1, src2; - - src1 = CC_DST + CC_SRC; - src2 = CC_SRC; - cf = (DATA_TYPE)src1 < (DATA_TYPE)src2; - return cf; -} - -static int glue(compute_all_sbb, SUFFIX)(void) -{ - int cf, pf, af, zf, sf, of; - target_long src1, src2; - - src1 = CC_DST + CC_SRC + 1; - src2 = CC_SRC; - cf = (DATA_TYPE)src1 <= (DATA_TYPE)src2; - pf = parity_table[(uint8_t)CC_DST]; - af = (CC_DST ^ src1 ^ src2) & 0x10; - zf = ((DATA_TYPE)CC_DST == 0) << 6; - sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80; - of = lshift((src1 ^ src2) & (src1 ^ CC_DST), 12 - DATA_BITS) & CC_O; - return cf | pf | af | zf | sf | of; -} - -static int glue(compute_c_sbb, SUFFIX)(void) -{ - int cf; - target_long src1, src2; - - src1 = CC_DST + CC_SRC + 1; - src2 = CC_SRC; - cf = (DATA_TYPE)src1 <= (DATA_TYPE)src2; - return cf; -} - -static int glue(compute_all_logic, SUFFIX)(void) -{ - int cf, pf, af, zf, sf, of; - - cf = 0; - pf = parity_table[(uint8_t)CC_DST]; - af = 0; - zf = ((DATA_TYPE)CC_DST == 0) << 6; - sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80; - of = 0; - return cf | pf | af | zf | sf | of; -} - -static int glue(compute_c_logic, SUFFIX)(void) -{ - return 0; -} - -static int glue(compute_all_inc, SUFFIX)(void) -{ - int cf, pf, af, zf, sf, of; - target_long src1, src2; - - src1 = CC_DST - 1; - src2 = 1; - cf = CC_SRC; - pf = parity_table[(uint8_t)CC_DST]; - af = (CC_DST ^ src1 ^ src2) & 0x10; - zf = ((DATA_TYPE)CC_DST == 0) << 6; - sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80; - of = ((CC_DST & DATA_MASK) == SIGN_MASK) << 11; - return cf | pf | af | zf | sf | of; -} - -#if DATA_BITS == 32 -static int glue(compute_c_inc, SUFFIX)(void) -{ - return CC_SRC; -} -#endif - -static int glue(compute_all_dec, SUFFIX)(void) -{ - int cf, pf, af, zf, sf, of; - target_long src1, src2; - - src1 = CC_DST + 1; - src2 = 1; - cf = CC_SRC; - pf = parity_table[(uint8_t)CC_DST]; - af = (CC_DST ^ src1 ^ src2) & 0x10; - zf = ((DATA_TYPE)CC_DST == 0) << 6; - sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80; - of = ((CC_DST & DATA_MASK) == ((target_ulong)SIGN_MASK - 1)) << 11; - return cf | pf | af | zf | sf | of; -} - -static int glue(compute_all_shl, SUFFIX)(void) -{ - int cf, pf, af, zf, sf, of; - - cf = (CC_SRC >> (DATA_BITS - 1)) & CC_C; - pf = parity_table[(uint8_t)CC_DST]; - af = 0; /* undefined */ - zf = ((DATA_TYPE)CC_DST == 0) << 6; - sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80; - /* of is defined if shift count == 1 */ - of = lshift(CC_SRC ^ CC_DST, 12 - DATA_BITS) & CC_O; - return cf | pf | af | zf | sf | of; -} - -static int glue(compute_c_shl, SUFFIX)(void) -{ - return (CC_SRC >> (DATA_BITS - 1)) & CC_C; -} - -#if DATA_BITS == 32 -static int glue(compute_c_sar, SUFFIX)(void) -{ - return CC_SRC & 1; -} -#endif - -static int glue(compute_all_sar, SUFFIX)(void) -{ - int cf, pf, af, zf, sf, of; - - cf = CC_SRC & 1; - pf = parity_table[(uint8_t)CC_DST]; - af = 0; /* undefined */ - zf = ((DATA_TYPE)CC_DST == 0) << 6; - sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80; - /* of is defined if shift count == 1 */ - of = lshift(CC_SRC ^ CC_DST, 12 - DATA_BITS) & CC_O; - return cf | pf | af | zf | sf | of; -} - -#if DATA_BITS == 32 -static int glue(compute_c_mul, SUFFIX)(void) -{ - int cf; - - cf = (CC_SRC != 0); - return cf; -} -#endif - -/* NOTE: we compute the flags like the P4. On olders CPUs, only OF and - CF are modified and it is slower to do that. */ -static int glue(compute_all_mul, SUFFIX)(void) -{ - int cf, pf, af, zf, sf, of; - - cf = (CC_SRC != 0); - pf = parity_table[(uint8_t)CC_DST]; - af = 0; /* undefined */ - zf = ((DATA_TYPE)CC_DST == 0) << 6; - sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80; - of = cf << 11; - return cf | pf | af | zf | sf | of; -} - -/* shifts */ - -target_ulong glue(helper_rcl, SUFFIX)(target_ulong t0, target_ulong t1) -{ - int count, eflags; - target_ulong src; - target_long res; - - count = t1 & SHIFT1_MASK; -#if DATA_BITS == 16 - count = rclw_table[count]; -#elif DATA_BITS == 8 - count = rclb_table[count]; -#endif - if (count) { - eflags = helper_cc_compute_all(CC_OP); - t0 &= DATA_MASK; - src = t0; - res = (t0 << count) | ((target_ulong)(eflags & CC_C) << (count - 1)); - if (count > 1) { - res |= t0 >> (DATA_BITS + 1 - count); - } - t0 = res; - env->cc_tmp = (eflags & ~(CC_C | CC_O)) | - (lshift(src ^ t0, 11 - (DATA_BITS - 1)) & CC_O) | - ((src >> (DATA_BITS - count)) & CC_C); - } else { - env->cc_tmp = -1; - } - return t0; -} - -target_ulong glue(helper_rcr, SUFFIX)(target_ulong t0, target_ulong t1) -{ - int count, eflags; - target_ulong src; - target_long res; - - count = t1 & SHIFT1_MASK; -#if DATA_BITS == 16 - count = rclw_table[count]; -#elif DATA_BITS == 8 - count = rclb_table[count]; -#endif - if (count) { - eflags = helper_cc_compute_all(CC_OP); - t0 &= DATA_MASK; - src = t0; - res = (t0 >> count) | - ((target_ulong)(eflags & CC_C) << (DATA_BITS - count)); - if (count > 1) { - res |= t0 << (DATA_BITS + 1 - count); - } - t0 = res; - env->cc_tmp = (eflags & ~(CC_C | CC_O)) | - (lshift(src ^ t0, 11 - (DATA_BITS - 1)) & CC_O) | - ((src >> (count - 1)) & CC_C); - } else { - env->cc_tmp = -1; - } - return t0; -} - -#undef DATA_BITS -#undef SHIFT_MASK -#undef SHIFT1_MASK -#undef SIGN_MASK -#undef DATA_TYPE -#undef DATA_STYPE -#undef DATA_MASK -#undef SUFFIX diff --git a/target-i386/op_helper.c b/target-i386/op_helper.c index 3b77972527..d791e38168 100644 --- a/target-i386/op_helper.c +++ b/target-i386/op_helper.c @@ -4715,25 +4715,43 @@ void cpu_vmexit(CPUX86State *nenv, uint32_t exit_code, uint64_t exit_info_1) #endif #define SHIFT 0 -#include "helper_template.h" +#include "cc_helper_template.h" #undef SHIFT #define SHIFT 1 -#include "helper_template.h" +#include "cc_helper_template.h" #undef SHIFT #define SHIFT 2 -#include "helper_template.h" +#include "cc_helper_template.h" #undef SHIFT #ifdef TARGET_X86_64 #define SHIFT 3 -#include "helper_template.h" +#include "cc_helper_template.h" #undef SHIFT #endif +#define SHIFT 0 +#include "shift_helper_template.h" +#undef SHIFT + +#define SHIFT 1 +#include "shift_helper_template.h" +#undef SHIFT + +#define SHIFT 2 +#include "shift_helper_template.h" +#undef SHIFT + +#ifdef TARGET_X86_64 +#define SHIFT 3 +#include "shift_helper_template.h" +#undef SHIFT +#endif + /* bit operations */ target_ulong helper_bsf(target_ulong t0) { diff --git a/target-i386/shift_helper_template.h b/target-i386/shift_helper_template.h new file mode 100644 index 0000000000..239ee0973c --- /dev/null +++ b/target-i386/shift_helper_template.h @@ -0,0 +1,110 @@ +/* + * x86 shift helpers + * + * Copyright (c) 2008 Fabrice Bellard + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, see . + */ + +#define DATA_BITS (1 << (3 + SHIFT)) +#define SHIFT_MASK (DATA_BITS - 1) +#if DATA_BITS <= 32 +#define SHIFT1_MASK 0x1f +#else +#define SHIFT1_MASK 0x3f +#endif + +#if DATA_BITS == 8 +#define SUFFIX b +#define DATA_MASK 0xff +#elif DATA_BITS == 16 +#define SUFFIX w +#define DATA_MASK 0xffff +#elif DATA_BITS == 32 +#define SUFFIX l +#define DATA_MASK 0xffffffff +#elif DATA_BITS == 64 +#define SUFFIX q +#define DATA_MASK 0xffffffffffffffffULL +#else +#error unhandled operand size +#endif + +target_ulong glue(helper_rcl, SUFFIX)(target_ulong t0, target_ulong t1) +{ + int count, eflags; + target_ulong src; + target_long res; + + count = t1 & SHIFT1_MASK; +#if DATA_BITS == 16 + count = rclw_table[count]; +#elif DATA_BITS == 8 + count = rclb_table[count]; +#endif + if (count) { + eflags = helper_cc_compute_all(CC_OP); + t0 &= DATA_MASK; + src = t0; + res = (t0 << count) | ((target_ulong)(eflags & CC_C) << (count - 1)); + if (count > 1) { + res |= t0 >> (DATA_BITS + 1 - count); + } + t0 = res; + env->cc_tmp = (eflags & ~(CC_C | CC_O)) | + (lshift(src ^ t0, 11 - (DATA_BITS - 1)) & CC_O) | + ((src >> (DATA_BITS - count)) & CC_C); + } else { + env->cc_tmp = -1; + } + return t0; +} + +target_ulong glue(helper_rcr, SUFFIX)(target_ulong t0, target_ulong t1) +{ + int count, eflags; + target_ulong src; + target_long res; + + count = t1 & SHIFT1_MASK; +#if DATA_BITS == 16 + count = rclw_table[count]; +#elif DATA_BITS == 8 + count = rclb_table[count]; +#endif + if (count) { + eflags = helper_cc_compute_all(CC_OP); + t0 &= DATA_MASK; + src = t0; + res = (t0 >> count) | + ((target_ulong)(eflags & CC_C) << (DATA_BITS - count)); + if (count > 1) { + res |= t0 << (DATA_BITS + 1 - count); + } + t0 = res; + env->cc_tmp = (eflags & ~(CC_C | CC_O)) | + (lshift(src ^ t0, 11 - (DATA_BITS - 1)) & CC_O) | + ((src >> (count - 1)) & CC_C); + } else { + env->cc_tmp = -1; + } + return t0; +} + +#undef DATA_BITS +#undef SHIFT_MASK +#undef SHIFT1_MASK +#undef DATA_TYPE +#undef DATA_MASK +#undef SUFFIX -- cgit v1.2.3