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-rw-r--r--target-i386/ops_template.h617
1 files changed, 617 insertions, 0 deletions
diff --git a/target-i386/ops_template.h b/target-i386/ops_template.h
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+++ b/target-i386/ops_template.h
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+/*
+ * i386 micro operations (included several times to generate
+ * different operand sizes)
+ *
+ * Copyright (c) 2003 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, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+#define DATA_BITS (1 << (3 + SHIFT))
+#define SHIFT_MASK (DATA_BITS - 1)
+#define SIGN_MASK (1 << (DATA_BITS - 1))
+
+#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
+#else
+#error unhandled operand size
+#endif
+
+/* dynamic flags computation */
+
+static int glue(compute_all_add, SUFFIX)(void)
+{
+ int cf, pf, af, zf, sf, of;
+ int 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 src1, cf;
+ 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;
+ int 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 src1, cf;
+ 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;
+ int 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 src1, src2, cf;
+ 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;
+ int 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 src1, src2, cf;
+ 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;
+ int 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;
+ int 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) == ((uint32_t)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;
+}
+
+/* various optimized jumps cases */
+
+void OPPROTO glue(op_jb_sub, SUFFIX)(void)
+{
+ int src1, src2;
+ src1 = CC_DST + CC_SRC;
+ src2 = CC_SRC;
+
+ if ((DATA_TYPE)src1 < (DATA_TYPE)src2)
+ JUMP_TB(glue(op_jb_sub, SUFFIX), PARAM1, 0, PARAM2);
+ else
+ JUMP_TB(glue(op_jb_sub, SUFFIX), PARAM1, 1, PARAM3);
+ FORCE_RET();
+}
+
+void OPPROTO glue(op_jz_sub, SUFFIX)(void)
+{
+ if ((DATA_TYPE)CC_DST == 0)
+ JUMP_TB(glue(op_jz_sub, SUFFIX), PARAM1, 0, PARAM2);
+ else
+ JUMP_TB(glue(op_jz_sub, SUFFIX), PARAM1, 1, PARAM3);
+ FORCE_RET();
+}
+
+void OPPROTO glue(op_jbe_sub, SUFFIX)(void)
+{
+ int src1, src2;
+ src1 = CC_DST + CC_SRC;
+ src2 = CC_SRC;
+
+ if ((DATA_TYPE)src1 <= (DATA_TYPE)src2)
+ JUMP_TB(glue(op_jbe_sub, SUFFIX), PARAM1, 0, PARAM2);
+ else
+ JUMP_TB(glue(op_jbe_sub, SUFFIX), PARAM1, 1, PARAM3);
+ FORCE_RET();
+}
+
+void OPPROTO glue(op_js_sub, SUFFIX)(void)
+{
+ if (CC_DST & SIGN_MASK)
+ JUMP_TB(glue(op_js_sub, SUFFIX), PARAM1, 0, PARAM2);
+ else
+ JUMP_TB(glue(op_js_sub, SUFFIX), PARAM1, 1, PARAM3);
+ FORCE_RET();
+}
+
+void OPPROTO glue(op_jl_sub, SUFFIX)(void)
+{
+ int src1, src2;
+ src1 = CC_DST + CC_SRC;
+ src2 = CC_SRC;
+
+ if ((DATA_STYPE)src1 < (DATA_STYPE)src2)
+ JUMP_TB(glue(op_jl_sub, SUFFIX), PARAM1, 0, PARAM2);
+ else
+ JUMP_TB(glue(op_jl_sub, SUFFIX), PARAM1, 1, PARAM3);
+ FORCE_RET();
+}
+
+void OPPROTO glue(op_jle_sub, SUFFIX)(void)
+{
+ int src1, src2;
+ src1 = CC_DST + CC_SRC;
+ src2 = CC_SRC;
+
+ if ((DATA_STYPE)src1 <= (DATA_STYPE)src2)
+ JUMP_TB(glue(op_jle_sub, SUFFIX), PARAM1, 0, PARAM2);
+ else
+ JUMP_TB(glue(op_jle_sub, SUFFIX), PARAM1, 1, PARAM3);
+ FORCE_RET();
+}
+
+/* oldies */
+
+#if DATA_BITS >= 16
+
+void OPPROTO glue(op_loopnz, SUFFIX)(void)
+{
+ unsigned int tmp;
+ int eflags;
+ eflags = cc_table[CC_OP].compute_all();
+ tmp = (ECX - 1) & DATA_MASK;
+ ECX = (ECX & ~DATA_MASK) | tmp;
+ if (tmp != 0 && !(eflags & CC_Z))
+ EIP = PARAM1;
+ else
+ EIP = PARAM2;
+ FORCE_RET();
+}
+
+void OPPROTO glue(op_loopz, SUFFIX)(void)
+{
+ unsigned int tmp;
+ int eflags;
+ eflags = cc_table[CC_OP].compute_all();
+ tmp = (ECX - 1) & DATA_MASK;
+ ECX = (ECX & ~DATA_MASK) | tmp;
+ if (tmp != 0 && (eflags & CC_Z))
+ EIP = PARAM1;
+ else
+ EIP = PARAM2;
+ FORCE_RET();
+}
+
+void OPPROTO glue(op_loop, SUFFIX)(void)
+{
+ unsigned int tmp;
+ tmp = (ECX - 1) & DATA_MASK;
+ ECX = (ECX & ~DATA_MASK) | tmp;
+ if (tmp != 0)
+ EIP = PARAM1;
+ else
+ EIP = PARAM2;
+ FORCE_RET();
+}
+
+void OPPROTO glue(op_jecxz, SUFFIX)(void)
+{
+ if ((DATA_TYPE)ECX == 0)
+ EIP = PARAM1;
+ else
+ EIP = PARAM2;
+ FORCE_RET();
+}
+
+#endif
+
+/* various optimized set cases */
+
+void OPPROTO glue(op_setb_T0_sub, SUFFIX)(void)
+{
+ int src1, src2;
+ src1 = CC_DST + CC_SRC;
+ src2 = CC_SRC;
+
+ T0 = ((DATA_TYPE)src1 < (DATA_TYPE)src2);
+}
+
+void OPPROTO glue(op_setz_T0_sub, SUFFIX)(void)
+{
+ T0 = ((DATA_TYPE)CC_DST == 0);
+}
+
+void OPPROTO glue(op_setbe_T0_sub, SUFFIX)(void)
+{
+ int src1, src2;
+ src1 = CC_DST + CC_SRC;
+ src2 = CC_SRC;
+
+ T0 = ((DATA_TYPE)src1 <= (DATA_TYPE)src2);
+}
+
+void OPPROTO glue(op_sets_T0_sub, SUFFIX)(void)
+{
+ T0 = lshift(CC_DST, -(DATA_BITS - 1)) & 1;
+}
+
+void OPPROTO glue(op_setl_T0_sub, SUFFIX)(void)
+{
+ int src1, src2;
+ src1 = CC_DST + CC_SRC;
+ src2 = CC_SRC;
+
+ T0 = ((DATA_STYPE)src1 < (DATA_STYPE)src2);
+}
+
+void OPPROTO glue(op_setle_T0_sub, SUFFIX)(void)
+{
+ int src1, src2;
+ src1 = CC_DST + CC_SRC;
+ src2 = CC_SRC;
+
+ T0 = ((DATA_STYPE)src1 <= (DATA_STYPE)src2);
+}
+
+/* shifts */
+
+void OPPROTO glue(glue(op_shl, SUFFIX), _T0_T1)(void)
+{
+ int count;
+ count = T1 & 0x1f;
+ T0 = T0 << count;
+ FORCE_RET();
+}
+
+void OPPROTO glue(glue(op_shr, SUFFIX), _T0_T1)(void)
+{
+ int count;
+ count = T1 & 0x1f;
+ T0 &= DATA_MASK;
+ T0 = T0 >> count;
+ FORCE_RET();
+}
+
+void OPPROTO glue(glue(op_sar, SUFFIX), _T0_T1)(void)
+{
+ int count, src;
+ count = T1 & 0x1f;
+ src = (DATA_STYPE)T0;
+ T0 = src >> count;
+ FORCE_RET();
+}
+
+#undef MEM_WRITE
+#include "ops_template_mem.h"
+
+#define MEM_WRITE
+#include "ops_template_mem.h"
+
+/* bit operations */
+#if DATA_BITS >= 16
+
+void OPPROTO glue(glue(op_bt, SUFFIX), _T0_T1_cc)(void)
+{
+ int count;
+ count = T1 & SHIFT_MASK;
+ CC_SRC = T0 >> count;
+}
+
+void OPPROTO glue(glue(op_bts, SUFFIX), _T0_T1_cc)(void)
+{
+ int count;
+ count = T1 & SHIFT_MASK;
+ T1 = T0 >> count;
+ T0 |= (1 << count);
+}
+
+void OPPROTO glue(glue(op_btr, SUFFIX), _T0_T1_cc)(void)
+{
+ int count;
+ count = T1 & SHIFT_MASK;
+ T1 = T0 >> count;
+ T0 &= ~(1 << count);
+}
+
+void OPPROTO glue(glue(op_btc, SUFFIX), _T0_T1_cc)(void)
+{
+ int count;
+ count = T1 & SHIFT_MASK;
+ T1 = T0 >> count;
+ T0 ^= (1 << count);
+}
+
+void OPPROTO glue(glue(op_bsf, SUFFIX), _T0_cc)(void)
+{
+ int res, count;
+ res = T0 & DATA_MASK;
+ if (res != 0) {
+ count = 0;
+ while ((res & 1) == 0) {
+ count++;
+ res >>= 1;
+ }
+ T0 = count;
+ CC_DST = 1; /* ZF = 1 */
+ } else {
+ CC_DST = 0; /* ZF = 1 */
+ }
+ FORCE_RET();
+}
+
+void OPPROTO glue(glue(op_bsr, SUFFIX), _T0_cc)(void)
+{
+ int res, count;
+ res = T0 & DATA_MASK;
+ if (res != 0) {
+ count = DATA_BITS - 1;
+ while ((res & SIGN_MASK) == 0) {
+ count--;
+ res <<= 1;
+ }
+ T0 = count;
+ CC_DST = 1; /* ZF = 1 */
+ } else {
+ CC_DST = 0; /* ZF = 1 */
+ }
+ FORCE_RET();
+}
+
+#endif
+
+#if DATA_BITS == 32
+void OPPROTO op_update_bt_cc(void)
+{
+ CC_SRC = T1;
+}
+#endif
+
+/* string operations */
+
+void OPPROTO glue(op_movl_T0_Dshift, SUFFIX)(void)
+{
+ T0 = DF << SHIFT;
+}
+
+void OPPROTO glue(op_string_jz_sub, SUFFIX)(void)
+{
+ if ((DATA_TYPE)CC_DST == 0)
+ JUMP_TB2(glue(op_string_jz_sub, SUFFIX), PARAM1, 1);
+ FORCE_RET();
+}
+
+void OPPROTO glue(op_string_jnz_sub, SUFFIX)(void)
+{
+ if ((DATA_TYPE)CC_DST != 0)
+ JUMP_TB2(glue(op_string_jnz_sub, SUFFIX), PARAM1, 1);
+ FORCE_RET();
+}
+
+void OPPROTO glue(glue(op_string_jz_sub, SUFFIX), _im)(void)
+{
+ if ((DATA_TYPE)CC_DST == 0) {
+ EIP = PARAM1;
+ if (env->eflags & TF_MASK) {
+ raise_exception(EXCP01_SSTP);
+ }
+ T0 = 0;
+ EXIT_TB();
+ }
+ FORCE_RET();
+}
+
+void OPPROTO glue(glue(op_string_jnz_sub, SUFFIX), _im)(void)
+{
+ if ((DATA_TYPE)CC_DST != 0) {
+ EIP = PARAM1;
+ if (env->eflags & TF_MASK) {
+ raise_exception(EXCP01_SSTP);
+ }
+ T0 = 0;
+ EXIT_TB();
+ }
+ FORCE_RET();
+}
+
+#if DATA_BITS >= 16
+void OPPROTO glue(op_jz_ecx, SUFFIX)(void)
+{
+ if ((DATA_TYPE)ECX == 0)
+ JUMP_TB(glue(op_jz_ecx, SUFFIX), PARAM1, 1, PARAM2);
+ FORCE_RET();
+}
+
+void OPPROTO glue(glue(op_jz_ecx, SUFFIX), _im)(void)
+{
+ if ((DATA_TYPE)ECX == 0) {
+ EIP = PARAM1;
+ if (env->eflags & TF_MASK) {
+ raise_exception(EXCP01_SSTP);
+ }
+ T0 = 0;
+ EXIT_TB();
+ }
+ FORCE_RET();
+}
+#endif
+
+/* port I/O */
+
+void OPPROTO glue(glue(op_out, SUFFIX), _T0_T1)(void)
+{
+ glue(cpu_x86_out, SUFFIX)(env, T0 & 0xffff, T1 & DATA_MASK);
+}
+
+void OPPROTO glue(glue(op_in, SUFFIX), _T0_T1)(void)
+{
+ T1 = glue(cpu_x86_in, SUFFIX)(env, T0 & 0xffff);
+}
+
+void OPPROTO glue(glue(op_in, SUFFIX), _DX_T0)(void)
+{
+ T0 = glue(cpu_x86_in, SUFFIX)(env, EDX & 0xffff);
+}
+
+void OPPROTO glue(glue(op_out, SUFFIX), _DX_T0)(void)
+{
+ glue(cpu_x86_out, SUFFIX)(env, EDX & 0xffff, T0);
+}
+
+#undef DATA_BITS
+#undef SHIFT_MASK
+#undef SIGN_MASK
+#undef DATA_TYPE
+#undef DATA_STYPE
+#undef DATA_MASK
+#undef SUFFIX
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-28 02:10:25 +0000