-typedef unsigned char uint8_t;
-typedef unsigned short uint16_t;
-typedef unsigned int uint32_t;
-typedef unsigned long long uint64_t;
-
-typedef signed char int8_t;
-typedef signed short int16_t;
-typedef signed int int32_t;
-typedef signed long long int64_t;
-
-#ifdef __i386__
-register int T0 asm("esi");
-register int T1 asm("ebx");
-register int A0 asm("edi");
-register struct CPU86State *env asm("ebp");
-#define FORCE_RET() asm volatile ("ret");
-#endif
-#ifdef __powerpc__
-register int T0 asm("r24");
-register int T1 asm("r25");
-register int A0 asm("r26");
-register struct CPU86State *env asm("r27");
-#define FORCE_RET() asm volatile ("blr");
-#endif
-#ifdef __arm__
-register int T0 asm("r4");
-register int T1 asm("r5");
-register int A0 asm("r6");
-register struct CPU86State *env asm("r7");
-#define FORCE_RET() asm volatile ("mov pc, lr");
-#endif
-#ifdef __mips__
-register int T0 asm("s0");
-register int T1 asm("s1");
-register int A0 asm("s2");
-register struct CPU86State *env asm("s3");
-#define FORCE_RET() asm volatile ("jr $31");
-#endif
-#ifdef __sparc__
-register int T0 asm("l0");
-register int T1 asm("l1");
-register int A0 asm("l2");
-register struct CPU86State *env asm("l3");
-#define FORCE_RET() asm volatile ("retl ; nop");
-#endif
-
-#ifndef OPPROTO
-#define OPPROTO
-#endif
-
-#define xglue(x, y) x ## y
-#define glue(x, y) xglue(x, y)
-
-#define EAX (env->regs[R_EAX])
-#define ECX (env->regs[R_ECX])
-#define EDX (env->regs[R_EDX])
-#define EBX (env->regs[R_EBX])
-#define ESP (env->regs[R_ESP])
-#define EBP (env->regs[R_EBP])
-#define ESI (env->regs[R_ESI])
-#define EDI (env->regs[R_EDI])
-#define PC (env->pc)
-#define DF (env->df)
-
-#define CC_SRC (env->cc_src)
-#define CC_DST (env->cc_dst)
-#define CC_OP (env->cc_op)
-
-extern int __op_param1, __op_param2, __op_param3;
-#define PARAM1 ((long)(&__op_param1))
-#define PARAM2 ((long)(&__op_param2))
-#define PARAM3 ((long)(&__op_param3))
-
-#include "cpu-i386.h"
-
-typedef struct CCTable {
- int (*compute_c)(void); /* return the C flag */
- int (*compute_z)(void); /* return the Z flag */
- int (*compute_s)(void); /* return the S flag */
- int (*compute_o)(void); /* return the O flag */
- int (*compute_all)(void); /* return all the flags */
-} CCTable;
-
-uint8_t parity_table[256] = {
- CC_P, 0, 0, CC_P, 0, CC_P, CC_P, 0,
- 0, CC_P, CC_P, 0, CC_P, 0, 0, CC_P,
- 0, CC_P, CC_P, 0, CC_P, 0, 0, CC_P,
- CC_P, 0, 0, CC_P, 0, CC_P, CC_P, 0,
- 0, CC_P, CC_P, 0, CC_P, 0, 0, CC_P,
- CC_P, 0, 0, CC_P, 0, CC_P, CC_P, 0,
- CC_P, 0, 0, CC_P, 0, CC_P, CC_P, 0,
- 0, CC_P, CC_P, 0, CC_P, 0, 0, CC_P,
- 0, CC_P, CC_P, 0, CC_P, 0, 0, CC_P,
- CC_P, 0, 0, CC_P, 0, CC_P, CC_P, 0,
- CC_P, 0, 0, CC_P, 0, CC_P, CC_P, 0,
- 0, CC_P, CC_P, 0, CC_P, 0, 0, CC_P,
- CC_P, 0, 0, CC_P, 0, CC_P, CC_P, 0,
- 0, CC_P, CC_P, 0, CC_P, 0, 0, CC_P,
- 0, CC_P, CC_P, 0, CC_P, 0, 0, CC_P,
- CC_P, 0, 0, CC_P, 0, CC_P, CC_P, 0,
- 0, CC_P, CC_P, 0, CC_P, 0, 0, CC_P,
- CC_P, 0, 0, CC_P, 0, CC_P, CC_P, 0,
- CC_P, 0, 0, CC_P, 0, CC_P, CC_P, 0,
- 0, CC_P, CC_P, 0, CC_P, 0, 0, CC_P,
- CC_P, 0, 0, CC_P, 0, CC_P, CC_P, 0,
- 0, CC_P, CC_P, 0, CC_P, 0, 0, CC_P,
- 0, CC_P, CC_P, 0, CC_P, 0, 0, CC_P,
- CC_P, 0, 0, CC_P, 0, CC_P, CC_P, 0,
- CC_P, 0, 0, CC_P, 0, CC_P, CC_P, 0,
- 0, CC_P, CC_P, 0, CC_P, 0, 0, CC_P,
- 0, CC_P, CC_P, 0, CC_P, 0, 0, CC_P,
- CC_P, 0, 0, CC_P, 0, CC_P, CC_P, 0,
- 0, CC_P, CC_P, 0, CC_P, 0, 0, CC_P,
- CC_P, 0, 0, CC_P, 0, CC_P, CC_P, 0,
- CC_P, 0, 0, CC_P, 0, CC_P, CC_P, 0,
- 0, CC_P, CC_P, 0, CC_P, 0, 0, CC_P,
-};
-
-static int compute_eflags_all(void)
-{
- return CC_SRC;
-}
-
-static int compute_eflags_addb(void)
-{
- int cf, pf, af, zf, sf, of;
- int src1, src2;
- src1 = CC_SRC;
- src2 = CC_DST - CC_SRC;
- cf = (uint8_t)CC_DST < (uint8_t)src1;
- pf = parity_table[(uint8_t)CC_DST];
- af = (CC_DST ^ src1 ^ src2) & 0x10;
- zf = ((uint8_t)CC_DST != 0) << 6;
- sf = CC_DST & 0x80;
- of = ((src1 ^ src2 ^ -1) & (src1 ^ CC_DST) & 0x80) << 4;
- return cf | pf | af | zf | sf | of;
-}
-
-static int compute_eflags_subb(void)
-{
- int cf, pf, af, zf, sf, of;
- int src1, src2;
- src1 = CC_SRC;
- src2 = CC_SRC - CC_DST;
- cf = (uint8_t)src1 < (uint8_t)src2;
- pf = parity_table[(uint8_t)CC_DST];
- af = (CC_DST ^ src1 ^ src2) & 0x10;
- zf = ((uint8_t)CC_DST != 0) << 6;
- sf = CC_DST & 0x80;
- of = ((src1 ^ src2 ^ -1) & (src1 ^ CC_DST) & 0x80) << 4;
- return cf | pf | af | zf | sf | of;
-}
-
-static int compute_eflags_logicb(void)
-{
- cf = 0;
- pf = parity_table[(uint8_t)CC_DST];
- af = 0;
- zf = ((uint8_t)CC_DST != 0) << 6;
- sf = CC_DST & 0x80;
- of = 0;
- return cf | pf | af | zf | sf | of;
-}
-
-static int compute_eflags_incb(void)
-{
- int cf, pf, af, zf, sf, of;
- int src2;
- src1 = CC_DST - 1;
- src2 = 1;
- cf = CC_SRC;
- pf = parity_table[(uint8_t)CC_DST];
- af = (CC_DST ^ src1 ^ src2) & 0x10;
- zf = ((uint8_t)CC_DST != 0) << 6;
- sf = CC_DST & 0x80;
- of = ((src1 ^ src2 ^ -1) & (src1 ^ CC_DST) & 0x80) << 4;
- return cf | pf | af | zf | sf | of;
-}
-
-static int compute_eflags_decb(void)
-{
- int cf, pf, af, zf, sf, of;
- int src1, src2;
- src1 = CC_DST + 1;
- src2 = 1;
- cf = (uint8_t)src1 < (uint8_t)src2;
- pf = parity_table[(uint8_t)CC_DST];
- af = (CC_DST ^ src1 ^ src2) & 0x10;
- zf = ((uint8_t)CC_DST != 0) << 6;
- sf = CC_DST & 0x80;
- of = ((src1 ^ src2 ^ -1) & (src1 ^ CC_DST) & 0x80) << 4;
- return cf | pf | af | zf | sf | of;
-}
-
-static int compute_eflags_shlb(void)
-{
- cf = CC_SRC;
- pf = parity_table[(uint8_t)CC_DST];
- af = 0; /* undefined */
- zf = ((uint8_t)CC_DST != 0) << 6;
- sf = CC_DST & 0x80;
- of = 0; /* undefined */
- return cf | pf | af | zf | sf | of;
-}
-
-static int compute_eflags_shrb(void)
-{
- cf = CC_SRC & 1;
- pf = parity_table[(uint8_t)CC_DST];
- af = 0; /* undefined */
- zf = ((uint8_t)CC_DST != 0) << 6;
- sf = CC_DST & 0x80;
- of = sf << 4;
- return cf | pf | af | zf | sf | of;
-}
-
-static int compute_eflags_mul(void)
-{
- cf = (CC_SRC != 0);
- pf = 0; /* undefined */
- af = 0; /* undefined */
- zf = 0; /* undefined */
- sf = 0; /* undefined */
- of = cf << 11;
- return cf | pf | af | zf | sf | of;
+/*
+ * i386 micro operations
+ *
+ * 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
+ */
+#include "exec-i386.h"
+
+/* n must be a constant to be efficient */
+static inline int lshift(int x, int n)
+{
+ if (n >= 0)
+ return x << n;
+ else
+ return x >> (-n);
}
-
-CTable cc_table[CC_OP_NB] = {
- [CC_OP_DYNAMIC] = { NULL, NULL, NULL },
- [CC_OP_EFLAGS] = { NULL, NULL, NULL },
-
-};
/* we define the various pieces of code used by the JIT */
#undef REG
#undef REGNAME
-/* operations */
+/* operations with flags */
void OPPROTO op_addl_T0_T1_cc(void)
{
CC_DST = T0;
}
-void OPPROTO op_adcl_T0_T1_cc(void)
-{
- CC_SRC = T0;
- T0 = T0 + T1 + cc_table[CC_OP].compute_c();
- CC_DST = T0;
-}
-
-void OPPROTO op_sbbl_T0_T1_cc(void)
-{
- CC_SRC = T0;
- T0 = T0 - T1 - cc_table[CC_OP].compute_c();
- CC_DST = T0;
-}
-
void OPPROTO op_andl_T0_T1_cc(void)
{
T0 &= T1;
CC_DST = T0 - T1;
}
-void OPPROTO op_notl_T0(void)
-{
- T0 = ~T0;
-}
-
void OPPROTO op_negl_T0_cc(void)
{
CC_SRC = 0;
void OPPROTO op_incl_T0_cc(void)
{
+ CC_SRC = cc_table[CC_OP].compute_c();
T0++;
CC_DST = T0;
}
void OPPROTO op_decl_T0_cc(void)
{
+ CC_SRC = cc_table[CC_OP].compute_c();
T0--;
CC_DST = T0;
}
void OPPROTO op_testl_T0_T1_cc(void)
{
- CC_SRC = T0;
CC_DST = T0 & T1;
}
-/* shifts */
-
-void OPPROTO op_roll_T0_T1_cc(void)
-{
- int count;
- count = T1 & 0x1f;
- if (count) {
- CC_SRC = T0;
- T0 = (T0 << count) | (T0 >> (32 - count));
- CC_DST = T0;
- CC_OP = CC_OP_ROLL;
- }
-}
-
-void OPPROTO op_rolw_T0_T1_cc(void)
-{
- int count;
- count = T1 & 0xf;
- if (count) {
- T0 = T0 & 0xffff;
- CC_SRC = T0;
- T0 = (T0 << count) | (T0 >> (16 - count));
- CC_DST = T0;
- CC_OP = CC_OP_ROLW;
- }
-}
-
-void OPPROTO op_rolb_T0_T1_cc(void)
-{
- int count;
- count = T1 & 0x7;
- if (count) {
- T0 = T0 & 0xff;
- CC_SRC = T0;
- T0 = (T0 << count) | (T0 >> (8 - count));
- CC_DST = T0;
- CC_OP = CC_OP_ROLB;
- }
-}
-
-void OPPROTO op_rorl_T0_T1_cc(void)
-{
- int count;
- count = T1 & 0x1f;
- if (count) {
- CC_SRC = T0;
- T0 = (T0 >> count) | (T0 << (32 - count));
- CC_DST = T0;
- CC_OP = CC_OP_RORB;
- }
-}
-
-void OPPROTO op_rorw_T0_T1_cc(void)
-{
- int count;
- count = T1 & 0xf;
- if (count) {
- CC_SRC = T0;
- T0 = (T0 >> count) | (T0 << (16 - count));
- CC_DST = T0;
- CC_OP = CC_OP_RORW;
- }
-}
-
-void OPPROTO op_rorb_T0_T1_cc(void)
-{
- int count;
- count = T1 & 0x7;
- if (count) {
- CC_SRC = T0;
- T0 = (T0 >> count) | (T0 << (8 - count));
- CC_DST = T0;
- CC_OP = CC_OP_RORL;
- }
-}
-
-/* modulo 17 table */
-const uint8_t rclw_table[32] = {
- 0, 1, 2, 3, 4, 5, 6, 7,
- 8, 9,10,11,12,13,14,15,
- 16, 0, 1, 2, 3, 4, 5, 6,
- 7, 8, 9,10,11,12,13,14,
-};
-
-/* modulo 9 table */
-const uint8_t rclb_table[32] = {
- 0, 1, 2, 3, 4, 5, 6, 7,
- 8, 0, 1, 2, 3, 4, 5, 6,
- 7, 8, 0, 1, 2, 3, 4, 5,
- 6, 7, 8, 0, 1, 2, 3, 4,
-};
+/* operations without flags */
-void helper_rcll_T0_T1_cc(void)
+void OPPROTO op_addl_T0_T1(void)
{
- int count, res;
-
- count = T1 & 0x1f;
- if (count) {
- CC_SRC = T0;
- res = (T0 << count) | (cc_table[CC_OP].compute_c() << (count - 1));
- if (count > 1)
- res |= T0 >> (33 - count);
- T0 = res;
- CC_DST = T0 ^ CC_SRC; /* O is in bit 31 */
- CC_SRC >>= (32 - count); /* CC is in bit 0 */
- CC_OP = CC_OP_RCLL;
- }
+ T0 += T1;
}
-void OPPROTO op_rcll_T0_T1_cc(void)
+void OPPROTO op_orl_T0_T1(void)
{
- helper_rcll_T0_T1_cc();
+ T0 |= T1;
}
-void OPPROTO op_rclw_T0_T1_cc(void)
+void OPPROTO op_andl_T0_T1(void)
{
- int count;
- count = rclw_table[T1 & 0x1f];
- if (count) {
- T0 = T0 & 0xffff;
- CC_SRC = T0;
- T0 = (T0 << count) | (cc_table[CC_OP].compute_c() << (count - 1)) |
- (T0 >> (17 - count));
- CC_DST = T0 ^ CC_SRC;
- CC_SRC >>= (16 - count);
- CC_OP = CC_OP_RCLW;
- }
+ T0 &= T1;
}
-void OPPROTO op_rclb_T0_T1_cc(void)
+void OPPROTO op_subl_T0_T1(void)
{
- int count;
- count = rclb_table[T1 & 0x1f];
- if (count) {
- T0 = T0 & 0xff;
- CC_SRC = T0;
- T0 = (T0 << count) | (cc_table[CC_OP].compute_c() << (count - 1)) |
- (T0 >> (9 - count));
- CC_DST = T0 ^ CC_SRC;
- CC_SRC >>= (8 - count);
- CC_OP = CC_OP_RCLB;
- }
+ T0 -= T1;
}
-void OPPROTO op_rcrl_T0_T1_cc(void)
+void OPPROTO op_xorl_T0_T1(void)
{
- int count, res;
- count = T1 & 0x1f;
- if (count) {
- CC_SRC = T0;
- res = (T0 >> count) | (cc_table[CC_OP].compute_c() << (32 - count));
- if (count > 1)
- res |= T0 << (33 - count);
- T0 = res;
- CC_DST = T0 ^ CC_SRC;
- CC_SRC >>= (count - 1);
- CC_OP = CC_OP_RCLL;
- }
+ T0 ^= T1;
}
-void OPPROTO op_rcrw_T0_T1_cc(void)
+void OPPROTO op_negl_T0(void)
{
- int count;
- count = rclw_table[T1 & 0x1f];
- if (count) {
- T0 = T0 & 0xffff;
- CC_SRC = T0;
- T0 = (T0 >> count) | (cc_table[CC_OP].compute_c() << (16 - count)) |
- (T0 << (17 - count));
- CC_DST = T0 ^ CC_SRC;
- CC_SRC >>= (count - 1);
- CC_OP = CC_OP_RCLW;
- }
+ T0 = -T0;
}
-void OPPROTO op_rcrb_T0_T1_cc(void)
+void OPPROTO op_incl_T0(void)
{
- int count;
- count = rclb_table[T1 & 0x1f];
- if (count) {
- T0 = T0 & 0xff;
- CC_SRC = T0;
- T0 = (T0 >> count) | (cc_table[CC_OP].compute_c() << (8 - count)) |
- (T0 << (9 - count));
- CC_DST = T0 ^ CC_SRC;
- CC_SRC >>= (count - 1);
- CC_OP = CC_OP_RCLB;
- }
-}
-
-void OPPROTO op_shll_T0_T1_cc(void)
-{
- int count;
- count = T1 & 0x1f;
- if (count == 1) {
- CC_SRC = T0;
- T0 = T0 << 1;
- CC_DST = T0;
- CC_OP = CC_OP_ADDL;
- } else if (count) {
- CC_SRC = T0 >> (32 - count);
- T0 = T0 << count;
- CC_DST = T0;
- CC_OP = CC_OP_SHLL;
- }
-}
-
-void OPPROTO op_shlw_T0_T1_cc(void)
-{
- int count;
- count = T1 & 0x1f;
- if (count == 1) {
- CC_SRC = T0;
- T0 = T0 << 1;
- CC_DST = T0;
- CC_OP = CC_OP_ADDW;
- } else if (count) {
- CC_SRC = T0 >> (16 - count);
- T0 = T0 << count;
- CC_DST = T0;
- CC_OP = CC_OP_SHLW;
- }
-}
-
-void OPPROTO op_shlb_T0_T1_cc(void)
-{
- int count;
- count = T1 & 0x1f;
- if (count == 1) {
- CC_SRC = T0;
- T0 = T0 << 1;
- CC_DST = T0;
- CC_OP = CC_OP_ADDB;
- } else if (count) {
- CC_SRC = T0 >> (8 - count);
- T0 = T0 << count;
- CC_DST = T0;
- CC_OP = CC_OP_SHLB;
- }
-}
-
-void OPPROTO op_shrl_T0_T1_cc(void)
-{
- int count;
- count = T1 & 0x1f;
- if (count == 1) {
- CC_SRC = T0;
- T0 = T0 >> 1;
- CC_DST = T0;
- CC_OP = CC_OP_SHRL;
- } else if (count) {
- CC_SRC = T0 >> (count - 1);
- T0 = T0 >> count;
- CC_DST = T0;
- CC_OP = CC_OP_SHLL;
- }
-}
-
-void OPPROTO op_shrw_T0_T1_cc(void)
-{
- int count;
- count = T1 & 0x1f;
- if (count == 1) {
- T0 = T0 & 0xffff;
- CC_SRC = T0;
- T0 = T0 >> 1;
- CC_DST = T0;
- CC_OP = CC_OP_SHRW;
- } else if (count) {
- T0 = T0 & 0xffff;
- CC_SRC = T0 >> (count - 1);
- T0 = T0 >> count;
- CC_DST = T0;
- CC_OP = CC_OP_SHLW;
- }
-}
-
-void OPPROTO op_shrb_T0_T1_cc(void)
-{
- int count;
- count = T1 & 0x1f;
- if (count == 1) {
- T0 = T0 & 0xff;
- CC_SRC = T0;
- T0 = T0 >> 1;
- CC_DST = T0;
- CC_OP = CC_OP_SHRB;
- } else if (count) {
- T0 = T0 & 0xff;
- CC_SRC = T0 >> (count - 1);
- T0 = T0 >> count;
- CC_DST = T0;
- CC_OP = CC_OP_SHLB;
- }
+ T0++;
}
-void OPPROTO op_sarl_T0_T1_cc(void)
+void OPPROTO op_decl_T0(void)
{
- int count;
- count = T1 & 0x1f;
- if (count) {
- CC_SRC = (int32_t)T0 >> (count - 1);
- T0 = (int32_t)T0 >> count;
- CC_DST = T0;
- CC_OP = CC_OP_SHLL;
- }
+ T0--;
}
-void OPPROTO op_sarw_T0_T1_cc(void)
+void OPPROTO op_notl_T0(void)
{
- int count;
- count = T1 & 0x1f;
- if (count) {
- CC_SRC = (int16_t)T0 >> (count - 1);
- T0 = (int16_t)T0 >> count;
- CC_DST = T0;
- CC_OP = CC_OP_SHLW;
- }
+ T0 = ~T0;
}
-void OPPROTO op_sarb_T0_T1_cc(void)
+void OPPROTO op_bswapl_T0(void)
{
- int count;
- count = T1 & 0x1f;
- if (count) {
- CC_SRC = (int8_t)T0 >> (count - 1);
- T0 = (int8_t)T0 >> count;
- CC_DST = T0;
- CC_OP = CC_OP_SHLB;
- }
+ T0 = bswap32(T0);
}
/* multiply/divide */
void OPPROTO op_imull_T0_T1(void)
{
int64_t res;
- res = (int64_t)((int32_t)EAX) * (int64_t)((int32_t)T1);
+ res = (int64_t)((int32_t)T0) * (int64_t)((int32_t)T1);
T0 = res;
CC_SRC = (res != (int32_t)res);
}
/* division, flags are undefined */
-/* XXX: add exceptions for overflow & div by zero */
+/* XXX: add exceptions for overflow */
+
void OPPROTO op_divb_AL_T0(void)
{
unsigned int num, den, q, r;
num = (EAX & 0xffff);
den = (T0 & 0xff);
+ if (den == 0) {
+ EIP = PARAM1;
+ raise_exception(EXCP00_DIVZ);
+ }
q = (num / den) & 0xff;
r = (num % den) & 0xff;
EAX = (EAX & 0xffff0000) | (r << 8) | q;
num = (int16_t)EAX;
den = (int8_t)T0;
+ if (den == 0) {
+ EIP = PARAM1;
+ raise_exception(EXCP00_DIVZ);
+ }
q = (num / den) & 0xff;
r = (num % den) & 0xff;
EAX = (EAX & 0xffff0000) | (r << 8) | q;
num = (EAX & 0xffff) | ((EDX & 0xffff) << 16);
den = (T0 & 0xffff);
+ if (den == 0) {
+ EIP = PARAM1;
+ raise_exception(EXCP00_DIVZ);
+ }
q = (num / den) & 0xffff;
r = (num % den) & 0xffff;
EAX = (EAX & 0xffff0000) | q;
num = (EAX & 0xffff) | ((EDX & 0xffff) << 16);
den = (int16_t)T0;
+ if (den == 0) {
+ EIP = PARAM1;
+ raise_exception(EXCP00_DIVZ);
+ }
q = (num / den) & 0xffff;
r = (num % den) & 0xffff;
EAX = (EAX & 0xffff0000) | q;
void OPPROTO op_divl_EAX_T0(void)
{
- unsigned int den, q, r;
- uint64_t num;
-
- num = EAX | ((uint64_t)EDX << 32);
- den = T0;
- q = (num / den);
- r = (num % den);
- EAX = q;
- EDX = r;
+ helper_divl_EAX_T0(PARAM1);
}
void OPPROTO op_idivl_EAX_T0(void)
{
- int den, q, r;
- int16_t num;
-
- num = EAX | ((uint64_t)EDX << 32);
- den = (int16_t)T0;
- q = (num / den);
- r = (num % den);
- EAX = q;
- EDX = r;
+ helper_idivl_EAX_T0(PARAM1);
}
-/* constant load */
+/* constant load & misc op */
-void OPPROTO op1_movl_T0_im(void)
+void OPPROTO op_movl_T0_im(void)
{
T0 = PARAM1;
}
-void OPPROTO op1_movl_T1_im(void)
+void OPPROTO op_addl_T0_im(void)
+{
+ T0 += PARAM1;
+}
+
+void OPPROTO op_andl_T0_ffff(void)
+{
+ T0 = T0 & 0xffff;
+}
+
+void OPPROTO op_movl_T0_T1(void)
+{
+ T0 = T1;
+}
+
+void OPPROTO op_movl_T1_im(void)
{
T1 = PARAM1;
}
-void OPPROTO op1_movl_A0_im(void)
+void OPPROTO op_addl_T1_im(void)
+{
+ T1 += PARAM1;
+}
+
+void OPPROTO op_movl_T1_A0(void)
+{
+ T1 = A0;
+}
+
+void OPPROTO op_movl_A0_im(void)
{
A0 = PARAM1;
}
+void OPPROTO op_addl_A0_im(void)
+{
+ A0 += PARAM1;
+}
+
+void OPPROTO op_addl_A0_AL(void)
+{
+ A0 += (EAX & 0xff);
+}
+
+void OPPROTO op_andl_A0_ffff(void)
+{
+ A0 = A0 & 0xffff;
+}
+
/* memory access */
void OPPROTO op_ldub_T0_A0(void)
stl((uint8_t *)A0, T0);
}
-/* flags */
+/* used for bit operations */
-void OPPROTO op_set_cc_op(void)
+void OPPROTO op_add_bitw_A0_T1(void)
{
- CC_OP = PARAM1;
+ A0 += ((int32_t)T1 >> 4) << 1;
}
-void OPPROTO op_movl_eflags_T0(void)
+void OPPROTO op_add_bitl_A0_T1(void)
{
- CC_SRC = T0;
- DF = (T0 & DIRECTION_FLAG) ? -1 : 1;
+ A0 += ((int32_t)T1 >> 5) << 2;
}
-void OPPROTO op_movb_eflags_T0(void)
+/* indirect jump */
+
+void OPPROTO op_jmp_T0(void)
{
- int cc_o;
- cc_o = cc_table[CC_OP].compute_o();
- CC_SRC = T0 | (cc_o << 11);
+ EIP = T0;
}
-void OPPROTO op_movl_T0_eflags(void)
+void OPPROTO op_jmp_im(void)
{
- cc_table[CC_OP].compute_eflags();
+ EIP = PARAM1;
}
-void OPPROTO op_cld(void)
+void OPPROTO op_raise_interrupt(void)
{
- DF = 1;
+ int intno;
+ unsigned int next_eip;
+ intno = PARAM1;
+ next_eip = PARAM2;
+ raise_interrupt(intno, 1, 0, next_eip);
}
-void OPPROTO op_std(void)
+void OPPROTO op_raise_exception(void)
{
- DF = -1;
+ int exception_index;
+ exception_index = PARAM1;
+ raise_exception(exception_index);
+}
+
+void OPPROTO op_into(void)
+{
+ int eflags;
+ eflags = cc_table[CC_OP].compute_all();
+ if (eflags & CC_O) {
+ raise_interrupt(EXCP04_INTO, 1, 0, PARAM1);
+ }
+ FORCE_RET();
}
-/* jumps */
+void OPPROTO op_cli(void)
+{
+ env->eflags &= ~IF_MASK;
+}
-/* indirect jump */
-void OPPROTO op_jmp_T0(void)
+void OPPROTO op_sti(void)
{
- PC = T0;
+ env->eflags |= IF_MASK;
}
-void OPPROTO op_jmp_im(void)
+#if 0
+/* vm86plus instructions */
+void OPPROTO op_cli_vm(void)
{
- PC = PARAM1;
+ env->eflags &= ~VIF_MASK;
}
-void OPPROTO op_jne_b(void)
+void OPPROTO op_sti_vm(void)
{
- if ((uint8_t)CC_DST != 0)
- PC += PARAM1;
- else
- PC += PARAM2;
+ env->eflags |= VIF_MASK;
+ if (env->eflags & VIP_MASK) {
+ EIP = PARAM1;
+ raise_exception(EXCP0D_GPF);
+ }
FORCE_RET();
}
+#endif
-void OPPROTO op_jne_w(void)
+void OPPROTO op_boundw(void)
{
- if ((uint16_t)CC_DST != 0)
- PC += PARAM1;
- else
- PC += PARAM2;
+ int low, high, v;
+ low = ldsw((uint8_t *)A0);
+ high = ldsw((uint8_t *)A0 + 2);
+ v = (int16_t)T0;
+ if (v < low || v > high) {
+ EIP = PARAM1;
+ raise_exception(EXCP05_BOUND);
+ }
FORCE_RET();
}
-void OPPROTO op_jne_l(void)
+void OPPROTO op_boundl(void)
{
- if (CC_DST != 0)
- PC += PARAM1;
- else
- PC += PARAM2;
- FORCE_RET(); /* generate a return so that gcc does not generate an
- early function return */
+ int low, high, v;
+ low = ldl((uint8_t *)A0);
+ high = ldl((uint8_t *)A0 + 4);
+ v = T0;
+ if (v < low || v > high) {
+ EIP = PARAM1;
+ raise_exception(EXCP05_BOUND);
+ }
+ FORCE_RET();
+}
+
+void OPPROTO op_cmpxchg8b(void)
+{
+ helper_cmpxchg8b();
+}
+
+void OPPROTO op_jmp_tb_next(void)
+{
+ JUMP_TB(PARAM1, 0, PARAM2);
}
-/* string ops */
+void OPPROTO op_movl_T0_0(void)
+{
+ T0 = 0;
+}
+
+/* multiple size ops */
#define ldul ldl
-#define SUFFIX b
#define SHIFT 0
-#include "opstring_template.h"
-#undef SUFFIX
+#include "ops_template.h"
#undef SHIFT
-#define SUFFIX w
#define SHIFT 1
-#include "opstring_template.h"
-#undef SUFFIX
+#include "ops_template.h"
#undef SHIFT
-#define SUFFIX l
#define SHIFT 2
-#include "opstring_template.h"
-#undef SUFFIX
+#include "ops_template.h"
#undef SHIFT
/* sign extend */
}
/* push/pop */
-/* XXX: add 16 bit operand/16 bit seg variants */
void op_pushl_T0(void)
{
ESP = offset;
}
-void op_pushl_T1(void)
+void op_pushw_T0(void)
+{
+ uint32_t offset;
+ offset = ESP - 2;
+ stw((void *)offset, T0);
+ /* modify ESP after to handle exceptions correctly */
+ ESP = offset;
+}
+
+void op_pushl_ss32_T0(void)
{
uint32_t offset;
offset = ESP - 4;
- stl((void *)offset, T1);
+ stl(env->seg_cache[R_SS].base + offset, T0);
+ /* modify ESP after to handle exceptions correctly */
+ ESP = offset;
+}
+
+void op_pushw_ss32_T0(void)
+{
+ uint32_t offset;
+ offset = ESP - 2;
+ stw(env->seg_cache[R_SS].base + offset, T0);
/* modify ESP after to handle exceptions correctly */
ESP = offset;
}
+void op_pushl_ss16_T0(void)
+{
+ uint32_t offset;
+ offset = (ESP - 4) & 0xffff;
+ stl(env->seg_cache[R_SS].base + offset, T0);
+ /* modify ESP after to handle exceptions correctly */
+ ESP = (ESP & ~0xffff) | offset;
+}
+
+void op_pushw_ss16_T0(void)
+{
+ uint32_t offset;
+ offset = (ESP - 2) & 0xffff;
+ stw(env->seg_cache[R_SS].base + offset, T0);
+ /* modify ESP after to handle exceptions correctly */
+ ESP = (ESP & ~0xffff) | offset;
+}
+
+/* NOTE: ESP update is done after */
void op_popl_T0(void)
{
T0 = ldl((void *)ESP);
- ESP += 4;
}
-void op_addl_ESP_im(void)
+void op_popw_T0(void)
{
- ESP += PARAM1;
+ T0 = lduw((void *)ESP);
+}
+
+void op_popl_ss32_T0(void)
+{
+ T0 = ldl(env->seg_cache[R_SS].base + ESP);
+}
+
+void op_popw_ss32_T0(void)
+{
+ T0 = lduw(env->seg_cache[R_SS].base + ESP);
+}
+
+void op_popl_ss16_T0(void)
+{
+ T0 = ldl(env->seg_cache[R_SS].base + (ESP & 0xffff));
+}
+
+void op_popw_ss16_T0(void)
+{
+ T0 = lduw(env->seg_cache[R_SS].base + (ESP & 0xffff));
+}
+
+void op_addl_ESP_4(void)
+{
+ ESP += 4;
}
+
+void op_addl_ESP_2(void)
+{
+ ESP += 2;
+}
+
+void op_addw_ESP_4(void)
+{
+ ESP = (ESP & ~0xffff) | ((ESP + 4) & 0xffff);
+}
+
+void op_addw_ESP_2(void)
+{
+ ESP = (ESP & ~0xffff) | ((ESP + 2) & 0xffff);
+}
+
+void op_addl_ESP_im(void)
+{
+ ESP += PARAM1;
+}
+
+void op_addw_ESP_im(void)
+{
+ ESP = (ESP & ~0xffff) | ((ESP + PARAM1) & 0xffff);
+}
+
+void OPPROTO op_rdtsc(void)
+{
+ helper_rdtsc();
+}
+
+void OPPROTO op_cpuid(void)
+{
+ helper_cpuid();
+}
+
+/* bcd */
+
+/* XXX: exception */
+void OPPROTO op_aam(void)
+{
+ int base = PARAM1;
+ int al, ah;
+ al = EAX & 0xff;
+ ah = al / base;
+ al = al % base;
+ EAX = (EAX & ~0xffff) | al | (ah << 8);
+ CC_DST = al;
+}
+
+void OPPROTO op_aad(void)
+{
+ int base = PARAM1;
+ int al, ah;
+ al = EAX & 0xff;
+ ah = (EAX >> 8) & 0xff;
+ al = ((ah * base) + al) & 0xff;
+ EAX = (EAX & ~0xffff) | al;
+ CC_DST = al;
+}
+
+void OPPROTO op_aaa(void)
+{
+ int icarry;
+ int al, ah, af;
+ int eflags;
+
+ eflags = cc_table[CC_OP].compute_all();
+ af = eflags & CC_A;
+ al = EAX & 0xff;
+ ah = (EAX >> 8) & 0xff;
+
+ icarry = (al > 0xf9);
+ if (((al & 0x0f) > 9 ) || af) {
+ al = (al + 6) & 0x0f;
+ ah = (ah + 1 + icarry) & 0xff;
+ eflags |= CC_C | CC_A;
+ } else {
+ eflags &= ~(CC_C | CC_A);
+ al &= 0x0f;
+ }
+ EAX = (EAX & ~0xffff) | al | (ah << 8);
+ CC_SRC = eflags;
+}
+
+void OPPROTO op_aas(void)
+{
+ int icarry;
+ int al, ah, af;
+ int eflags;
+
+ eflags = cc_table[CC_OP].compute_all();
+ af = eflags & CC_A;
+ al = EAX & 0xff;
+ ah = (EAX >> 8) & 0xff;
+
+ icarry = (al < 6);
+ if (((al & 0x0f) > 9 ) || af) {
+ al = (al - 6) & 0x0f;
+ ah = (ah - 1 - icarry) & 0xff;
+ eflags |= CC_C | CC_A;
+ } else {
+ eflags &= ~(CC_C | CC_A);
+ al &= 0x0f;
+ }
+ EAX = (EAX & ~0xffff) | al | (ah << 8);
+ CC_SRC = eflags;
+}
+
+void OPPROTO op_daa(void)
+{
+ int al, af, cf;
+ int eflags;
+
+ eflags = cc_table[CC_OP].compute_all();
+ cf = eflags & CC_C;
+ af = eflags & CC_A;
+ al = EAX & 0xff;
+
+ eflags = 0;
+ if (((al & 0x0f) > 9 ) || af) {
+ al = (al + 6) & 0xff;
+ eflags |= CC_A;
+ }
+ if ((al > 0x9f) || cf) {
+ al = (al + 0x60) & 0xff;
+ eflags |= CC_C;
+ }
+ EAX = (EAX & ~0xff) | al;
+ /* well, speed is not an issue here, so we compute the flags by hand */
+ eflags |= (al == 0) << 6; /* zf */
+ eflags |= parity_table[al]; /* pf */
+ eflags |= (al & 0x80); /* sf */
+ CC_SRC = eflags;
+}
+
+void OPPROTO op_das(void)
+{
+ int al, al1, af, cf;
+ int eflags;
+
+ eflags = cc_table[CC_OP].compute_all();
+ cf = eflags & CC_C;
+ af = eflags & CC_A;
+ al = EAX & 0xff;
+
+ eflags = 0;
+ al1 = al;
+ if (((al & 0x0f) > 9 ) || af) {
+ eflags |= CC_A;
+ if (al < 6 || cf)
+ eflags |= CC_C;
+ al = (al - 6) & 0xff;
+ }
+ if ((al1 > 0x99) || cf) {
+ al = (al - 0x60) & 0xff;
+ eflags |= CC_C;
+ }
+ EAX = (EAX & ~0xff) | al;
+ /* well, speed is not an issue here, so we compute the flags by hand */
+ eflags |= (al == 0) << 6; /* zf */
+ eflags |= parity_table[al]; /* pf */
+ eflags |= (al & 0x80); /* sf */
+ CC_SRC = eflags;
+}
+
+/* segment handling */
+
+void OPPROTO op_movl_seg_T0(void)
+{
+ load_seg(PARAM1, T0 & 0xffff, PARAM2);
+}
+
+/* faster VM86 version */
+void OPPROTO op_movl_seg_T0_vm(void)
+{
+ int selector;
+
+ selector = T0 & 0xffff;
+ /* env->segs[] access */
+ *(uint32_t *)((char *)env + PARAM1) = selector;
+ /* env->seg_cache[] access */
+ ((SegmentCache *)((char *)env + PARAM2))->base = (void *)(selector << 4);
+}
+
+void OPPROTO op_movl_T0_seg(void)
+{
+ T0 = env->segs[PARAM1];
+}
+
+void OPPROTO op_movl_A0_seg(void)
+{
+ A0 = *(unsigned long *)((char *)env + PARAM1);
+}
+
+void OPPROTO op_addl_A0_seg(void)
+{
+ A0 += *(unsigned long *)((char *)env + PARAM1);
+}
+
+void OPPROTO op_lsl(void)
+{
+ helper_lsl();
+}
+
+void OPPROTO op_lar(void)
+{
+ helper_lar();
+}
+
+/* flags handling */
+
+/* slow jumps cases : in order to avoid calling a function with a
+ pointer (which can generate a stack frame on PowerPC), we use
+ op_setcc to set T0 and then call op_jcc. */
+void OPPROTO op_jcc(void)
+{
+ if (T0)
+ JUMP_TB(PARAM1, 0, PARAM2);
+ else
+ JUMP_TB(PARAM1, 1, PARAM3);
+ FORCE_RET();
+}
+
+/* slow set cases (compute x86 flags) */
+void OPPROTO op_seto_T0_cc(void)
+{
+ int eflags;
+ eflags = cc_table[CC_OP].compute_all();
+ T0 = (eflags >> 11) & 1;
+}
+
+void OPPROTO op_setb_T0_cc(void)
+{
+ T0 = cc_table[CC_OP].compute_c();
+}
+
+void OPPROTO op_setz_T0_cc(void)
+{
+ int eflags;
+ eflags = cc_table[CC_OP].compute_all();
+ T0 = (eflags >> 6) & 1;
+}
+
+void OPPROTO op_setbe_T0_cc(void)
+{
+ int eflags;
+ eflags = cc_table[CC_OP].compute_all();
+ T0 = (eflags & (CC_Z | CC_C)) != 0;
+}
+
+void OPPROTO op_sets_T0_cc(void)
+{
+ int eflags;
+ eflags = cc_table[CC_OP].compute_all();
+ T0 = (eflags >> 7) & 1;
+}
+
+void OPPROTO op_setp_T0_cc(void)
+{
+ int eflags;
+ eflags = cc_table[CC_OP].compute_all();
+ T0 = (eflags >> 2) & 1;
+}
+
+void OPPROTO op_setl_T0_cc(void)
+{
+ int eflags;
+ eflags = cc_table[CC_OP].compute_all();
+ T0 = ((eflags ^ (eflags >> 4)) >> 7) & 1;
+}
+
+void OPPROTO op_setle_T0_cc(void)
+{
+ int eflags;
+ eflags = cc_table[CC_OP].compute_all();
+ T0 = (((eflags ^ (eflags >> 4)) & 0x80) || (eflags & CC_Z)) != 0;
+}
+
+void OPPROTO op_xor_T0_1(void)
+{
+ T0 ^= 1;
+}
+
+void OPPROTO op_set_cc_op(void)
+{
+ CC_OP = PARAM1;
+}
+
+#define FL_UPDATE_MASK32 (TF_MASK | AC_MASK | ID_MASK)
+#define FL_UPDATE_MASK16 (TF_MASK)
+
+void OPPROTO op_movl_eflags_T0(void)
+{
+ int eflags;
+ eflags = T0;
+ CC_SRC = eflags & (CC_O | CC_S | CC_Z | CC_A | CC_P | CC_C);
+ DF = 1 - (2 * ((eflags >> 10) & 1));
+ /* we also update some system flags as in user mode */
+ env->eflags = (env->eflags & ~FL_UPDATE_MASK32) | (eflags & FL_UPDATE_MASK32);
+}
+
+void OPPROTO op_movw_eflags_T0(void)
+{
+ int eflags;
+ eflags = T0;
+ CC_SRC = eflags & (CC_O | CC_S | CC_Z | CC_A | CC_P | CC_C);
+ DF = 1 - (2 * ((eflags >> 10) & 1));
+ /* we also update some system flags as in user mode */
+ env->eflags = (env->eflags & ~FL_UPDATE_MASK16) | (eflags & FL_UPDATE_MASK16);
+}
+
+#if 0
+/* vm86plus version */
+void OPPROTO op_movw_eflags_T0_vm(void)
+{
+ int eflags;
+ eflags = T0;
+ CC_SRC = eflags & (CC_O | CC_S | CC_Z | CC_A | CC_P | CC_C);
+ DF = 1 - (2 * ((eflags >> 10) & 1));
+ /* we also update some system flags as in user mode */
+ env->eflags = (env->eflags & ~(FL_UPDATE_MASK16 | VIF_MASK)) |
+ (eflags & FL_UPDATE_MASK16);
+ if (eflags & IF_MASK) {
+ env->eflags |= VIF_MASK;
+ if (env->eflags & VIP_MASK) {
+ EIP = PARAM1;
+ raise_exception(EXCP0D_GPF);
+ }
+ }
+ FORCE_RET();
+}
+
+void OPPROTO op_movl_eflags_T0_vm(void)
+{
+ int eflags;
+ eflags = T0;
+ CC_SRC = eflags & (CC_O | CC_S | CC_Z | CC_A | CC_P | CC_C);
+ DF = 1 - (2 * ((eflags >> 10) & 1));
+ /* we also update some system flags as in user mode */
+ env->eflags = (env->eflags & ~(FL_UPDATE_MASK32 | VIF_MASK)) |
+ (eflags & FL_UPDATE_MASK32);
+ if (eflags & IF_MASK) {
+ env->eflags |= VIF_MASK;
+ if (env->eflags & VIP_MASK) {
+ EIP = PARAM1;
+ raise_exception(EXCP0D_GPF);
+ }
+ }
+ FORCE_RET();
+}
+#endif
+
+/* XXX: compute only O flag */
+void OPPROTO op_movb_eflags_T0(void)
+{
+ int of;
+ of = cc_table[CC_OP].compute_all() & CC_O;
+ CC_SRC = (T0 & (CC_S | CC_Z | CC_A | CC_P | CC_C)) | of;
+}
+
+void OPPROTO op_movl_T0_eflags(void)
+{
+ int eflags;
+ eflags = cc_table[CC_OP].compute_all();
+ eflags |= (DF & DF_MASK);
+ eflags |= env->eflags & ~(VM_MASK | RF_MASK);
+ T0 = eflags;
+}
+
+/* vm86plus version */
+#if 0
+void OPPROTO op_movl_T0_eflags_vm(void)
+{
+ int eflags;
+ eflags = cc_table[CC_OP].compute_all();
+ eflags |= (DF & DF_MASK);
+ eflags |= env->eflags & ~(VM_MASK | RF_MASK | IF_MASK);
+ if (env->eflags & VIF_MASK)
+ eflags |= IF_MASK;
+ T0 = eflags;
+}
+#endif
+
+void OPPROTO op_cld(void)
+{
+ DF = 1;
+}
+
+void OPPROTO op_std(void)
+{
+ DF = -1;
+}
+
+void OPPROTO op_clc(void)
+{
+ int eflags;
+ eflags = cc_table[CC_OP].compute_all();
+ eflags &= ~CC_C;
+ CC_SRC = eflags;
+}
+
+void OPPROTO op_stc(void)
+{
+ int eflags;
+ eflags = cc_table[CC_OP].compute_all();
+ eflags |= CC_C;
+ CC_SRC = eflags;
+}
+
+void OPPROTO op_cmc(void)
+{
+ int eflags;
+ eflags = cc_table[CC_OP].compute_all();
+ eflags ^= CC_C;
+ CC_SRC = eflags;
+}
+
+void OPPROTO op_salc(void)
+{
+ int cf;
+ cf = cc_table[CC_OP].compute_c();
+ EAX = (EAX & ~0xff) | ((-cf) & 0xff);
+}
+
+static int compute_all_eflags(void)
+{
+ return CC_SRC;
+}
+
+static int compute_c_eflags(void)
+{
+ return CC_SRC & CC_C;
+}
+
+static int compute_c_mul(void)
+{
+ int cf;
+ cf = (CC_SRC != 0);
+ return cf;
+}
+
+static int compute_all_mul(void)
+{
+ int cf, pf, af, zf, sf, of;
+ cf = (CC_SRC != 0);
+ pf = 0; /* undefined */
+ af = 0; /* undefined */
+ zf = 0; /* undefined */
+ sf = 0; /* undefined */
+ of = cf << 11;
+ return cf | pf | af | zf | sf | of;
+}
+
+CCTable cc_table[CC_OP_NB] = {
+ [CC_OP_DYNAMIC] = { /* should never happen */ },
+
+ [CC_OP_EFLAGS] = { compute_all_eflags, compute_c_eflags },
+
+ [CC_OP_MUL] = { compute_all_mul, compute_c_mul },
+
+ [CC_OP_ADDB] = { compute_all_addb, compute_c_addb },
+ [CC_OP_ADDW] = { compute_all_addw, compute_c_addw },
+ [CC_OP_ADDL] = { compute_all_addl, compute_c_addl },
+
+ [CC_OP_ADCB] = { compute_all_adcb, compute_c_adcb },
+ [CC_OP_ADCW] = { compute_all_adcw, compute_c_adcw },
+ [CC_OP_ADCL] = { compute_all_adcl, compute_c_adcl },
+
+ [CC_OP_SUBB] = { compute_all_subb, compute_c_subb },
+ [CC_OP_SUBW] = { compute_all_subw, compute_c_subw },
+ [CC_OP_SUBL] = { compute_all_subl, compute_c_subl },
+
+ [CC_OP_SBBB] = { compute_all_sbbb, compute_c_sbbb },
+ [CC_OP_SBBW] = { compute_all_sbbw, compute_c_sbbw },
+ [CC_OP_SBBL] = { compute_all_sbbl, compute_c_sbbl },
+
+ [CC_OP_LOGICB] = { compute_all_logicb, compute_c_logicb },
+ [CC_OP_LOGICW] = { compute_all_logicw, compute_c_logicw },
+ [CC_OP_LOGICL] = { compute_all_logicl, compute_c_logicl },
+
+ [CC_OP_INCB] = { compute_all_incb, compute_c_incl },
+ [CC_OP_INCW] = { compute_all_incw, compute_c_incl },
+ [CC_OP_INCL] = { compute_all_incl, compute_c_incl },
+
+ [CC_OP_DECB] = { compute_all_decb, compute_c_incl },
+ [CC_OP_DECW] = { compute_all_decw, compute_c_incl },
+ [CC_OP_DECL] = { compute_all_decl, compute_c_incl },
+
+ [CC_OP_SHLB] = { compute_all_shlb, compute_c_shlb },
+ [CC_OP_SHLW] = { compute_all_shlw, compute_c_shlw },
+ [CC_OP_SHLL] = { compute_all_shll, compute_c_shll },
+
+ [CC_OP_SARB] = { compute_all_sarb, compute_c_sarl },
+ [CC_OP_SARW] = { compute_all_sarw, compute_c_sarl },
+ [CC_OP_SARL] = { compute_all_sarl, compute_c_sarl },
+};
+
+/* floating point support. Some of the code for complicated x87
+ functions comes from the LGPL'ed x86 emulator found in the Willows
+ TWIN windows emulator. */
+
+#if defined(__powerpc__)
+extern CPU86_LDouble copysign(CPU86_LDouble, CPU86_LDouble);
+
+/* correct (but slow) PowerPC rint() (glibc version is incorrect) */
+double qemu_rint(double x)
+{
+ double y = 4503599627370496.0;
+ if (fabs(x) >= y)
+ return x;
+ if (x < 0)
+ y = -y;
+ y = (x + y) - y;
+ if (y == 0.0)
+ y = copysign(y, x);
+ return y;
+}
+
+#define rint qemu_rint
+#endif
+
+/* fp load FT0 */
+
+void OPPROTO op_flds_FT0_A0(void)
+{
+#ifdef USE_FP_CONVERT
+ FP_CONVERT.i32 = ldl((void *)A0);
+ FT0 = FP_CONVERT.f;
+#else
+ FT0 = ldfl((void *)A0);
+#endif
+}
+
+void OPPROTO op_fldl_FT0_A0(void)
+{
+#ifdef USE_FP_CONVERT
+ FP_CONVERT.i64 = ldq((void *)A0);
+ FT0 = FP_CONVERT.d;
+#else
+ FT0 = ldfq((void *)A0);
+#endif
+}
+
+/* helpers are needed to avoid static constant reference. XXX: find a better way */
+#ifdef USE_INT_TO_FLOAT_HELPERS
+
+void helper_fild_FT0_A0(void)
+{
+ FT0 = (CPU86_LDouble)ldsw((void *)A0);
+}
+
+void helper_fildl_FT0_A0(void)
+{
+ FT0 = (CPU86_LDouble)((int32_t)ldl((void *)A0));
+}
+
+void helper_fildll_FT0_A0(void)
+{
+ FT0 = (CPU86_LDouble)((int64_t)ldq((void *)A0));
+}
+
+void OPPROTO op_fild_FT0_A0(void)
+{
+ helper_fild_FT0_A0();
+}
+
+void OPPROTO op_fildl_FT0_A0(void)
+{
+ helper_fildl_FT0_A0();
+}
+
+void OPPROTO op_fildll_FT0_A0(void)
+{
+ helper_fildll_FT0_A0();
+}
+
+#else
+
+void OPPROTO op_fild_FT0_A0(void)
+{
+#ifdef USE_FP_CONVERT
+ FP_CONVERT.i32 = ldsw((void *)A0);
+ FT0 = (CPU86_LDouble)FP_CONVERT.i32;
+#else
+ FT0 = (CPU86_LDouble)ldsw((void *)A0);
+#endif
+}
+
+void OPPROTO op_fildl_FT0_A0(void)
+{
+#ifdef USE_FP_CONVERT
+ FP_CONVERT.i32 = (int32_t) ldl((void *)A0);
+ FT0 = (CPU86_LDouble)FP_CONVERT.i32;
+#else
+ FT0 = (CPU86_LDouble)((int32_t)ldl((void *)A0));
+#endif
+}
+
+void OPPROTO op_fildll_FT0_A0(void)
+{
+#ifdef USE_FP_CONVERT
+ FP_CONVERT.i64 = (int64_t) ldq((void *)A0);
+ FT0 = (CPU86_LDouble)FP_CONVERT.i64;
+#else
+ FT0 = (CPU86_LDouble)((int64_t)ldq((void *)A0));
+#endif
+}
+#endif
+
+/* fp load ST0 */
+
+void OPPROTO op_flds_ST0_A0(void)
+{
+#ifdef USE_FP_CONVERT
+ FP_CONVERT.i32 = ldl((void *)A0);
+ ST0 = FP_CONVERT.f;
+#else
+ ST0 = ldfl((void *)A0);
+#endif
+}
+
+void OPPROTO op_fldl_ST0_A0(void)
+{
+#ifdef USE_FP_CONVERT
+ FP_CONVERT.i64 = ldq((void *)A0);
+ ST0 = FP_CONVERT.d;
+#else
+ ST0 = ldfq((void *)A0);
+#endif
+}
+
+#ifdef USE_X86LDOUBLE
+void OPPROTO op_fldt_ST0_A0(void)
+{
+ ST0 = *(long double *)A0;
+}
+#else
+void OPPROTO op_fldt_ST0_A0(void)
+{
+ helper_fldt_ST0_A0();
+}
+#endif
+
+/* helpers are needed to avoid static constant reference. XXX: find a better way */
+#ifdef USE_INT_TO_FLOAT_HELPERS
+
+void helper_fild_ST0_A0(void)
+{
+ ST0 = (CPU86_LDouble)ldsw((void *)A0);
+}
+
+void helper_fildl_ST0_A0(void)
+{
+ ST0 = (CPU86_LDouble)((int32_t)ldl((void *)A0));
+}
+
+void helper_fildll_ST0_A0(void)
+{
+ ST0 = (CPU86_LDouble)((int64_t)ldq((void *)A0));
+}
+
+void OPPROTO op_fild_ST0_A0(void)
+{
+ helper_fild_ST0_A0();
+}
+
+void OPPROTO op_fildl_ST0_A0(void)
+{
+ helper_fildl_ST0_A0();
+}
+
+void OPPROTO op_fildll_ST0_A0(void)
+{
+ helper_fildll_ST0_A0();
+}
+
+#else
+
+void OPPROTO op_fild_ST0_A0(void)
+{
+#ifdef USE_FP_CONVERT
+ FP_CONVERT.i32 = ldsw((void *)A0);
+ ST0 = (CPU86_LDouble)FP_CONVERT.i32;
+#else
+ ST0 = (CPU86_LDouble)ldsw((void *)A0);
+#endif
+}
+
+void OPPROTO op_fildl_ST0_A0(void)
+{
+#ifdef USE_FP_CONVERT
+ FP_CONVERT.i32 = (int32_t) ldl((void *)A0);
+ ST0 = (CPU86_LDouble)FP_CONVERT.i32;
+#else
+ ST0 = (CPU86_LDouble)((int32_t)ldl((void *)A0));
+#endif
+}
+
+void OPPROTO op_fildll_ST0_A0(void)
+{
+#ifdef USE_FP_CONVERT
+ FP_CONVERT.i64 = (int64_t) ldq((void *)A0);
+ ST0 = (CPU86_LDouble)FP_CONVERT.i64;
+#else
+ ST0 = (CPU86_LDouble)((int64_t)ldq((void *)A0));
+#endif
+}
+
+#endif
+
+/* fp store */
+
+void OPPROTO op_fsts_ST0_A0(void)
+{
+#ifdef USE_FP_CONVERT
+ FP_CONVERT.f = (float)ST0;
+ stfl((void *)A0, FP_CONVERT.f);
+#else
+ stfl((void *)A0, (float)ST0);
+#endif
+}
+
+void OPPROTO op_fstl_ST0_A0(void)
+{
+ stfq((void *)A0, (double)ST0);
+}
+
+#ifdef USE_X86LDOUBLE
+void OPPROTO op_fstt_ST0_A0(void)
+{
+ *(long double *)A0 = ST0;
+}
+#else
+void OPPROTO op_fstt_ST0_A0(void)
+{
+ helper_fstt_ST0_A0();
+}
+#endif
+
+void OPPROTO op_fist_ST0_A0(void)
+{
+#if defined(__sparc__) && !defined(__sparc_v9__)
+ register CPU86_LDouble d asm("o0");
+#else
+ CPU86_LDouble d;
+#endif
+ int val;
+
+ d = ST0;
+ val = lrint(d);
+ if (val != (int16_t)val)
+ val = -32768;
+ stw((void *)A0, val);
+}
+
+void OPPROTO op_fistl_ST0_A0(void)
+{
+#if defined(__sparc__) && !defined(__sparc_v9__)
+ register CPU86_LDouble d asm("o0");
+#else
+ CPU86_LDouble d;
+#endif
+ int val;
+
+ d = ST0;
+ val = lrint(d);
+ stl((void *)A0, val);
+}
+
+void OPPROTO op_fistll_ST0_A0(void)
+{
+#if defined(__sparc__) && !defined(__sparc_v9__)
+ register CPU86_LDouble d asm("o0");
+#else
+ CPU86_LDouble d;
+#endif
+ int64_t val;
+
+ d = ST0;
+ val = llrint(d);
+ stq((void *)A0, val);
+}
+
+void OPPROTO op_fbld_ST0_A0(void)
+{
+ helper_fbld_ST0_A0();
+}
+
+void OPPROTO op_fbst_ST0_A0(void)
+{
+ helper_fbst_ST0_A0();
+}
+
+/* FPU move */
+
+void OPPROTO op_fpush(void)
+{
+ fpush();
+}
+
+void OPPROTO op_fpop(void)
+{
+ fpop();
+}
+
+void OPPROTO op_fdecstp(void)
+{
+ env->fpstt = (env->fpstt - 1) & 7;
+ env->fpus &= (~0x4700);
+}
+
+void OPPROTO op_fincstp(void)
+{
+ env->fpstt = (env->fpstt + 1) & 7;
+ env->fpus &= (~0x4700);
+}
+
+void OPPROTO op_fmov_ST0_FT0(void)
+{
+ ST0 = FT0;
+}
+
+void OPPROTO op_fmov_FT0_STN(void)
+{
+ FT0 = ST(PARAM1);
+}
+
+void OPPROTO op_fmov_ST0_STN(void)
+{
+ ST0 = ST(PARAM1);
+}
+
+void OPPROTO op_fmov_STN_ST0(void)
+{
+ ST(PARAM1) = ST0;
+}
+
+void OPPROTO op_fxchg_ST0_STN(void)
+{
+ CPU86_LDouble tmp;
+ tmp = ST(PARAM1);
+ ST(PARAM1) = ST0;
+ ST0 = tmp;
+}
+
+/* FPU operations */
+
+/* XXX: handle nans */
+void OPPROTO op_fcom_ST0_FT0(void)
+{
+ env->fpus &= (~0x4500); /* (C3,C2,C0) <-- 000 */
+ if (ST0 < FT0)
+ env->fpus |= 0x100; /* (C3,C2,C0) <-- 001 */
+ else if (ST0 == FT0)
+ env->fpus |= 0x4000; /* (C3,C2,C0) <-- 100 */
+ FORCE_RET();
+}
+
+/* XXX: handle nans */
+void OPPROTO op_fucom_ST0_FT0(void)
+{
+ env->fpus &= (~0x4500); /* (C3,C2,C0) <-- 000 */
+ if (ST0 < FT0)
+ env->fpus |= 0x100; /* (C3,C2,C0) <-- 001 */
+ else if (ST0 == FT0)
+ env->fpus |= 0x4000; /* (C3,C2,C0) <-- 100 */
+ FORCE_RET();
+}
+
+/* XXX: handle nans */
+void OPPROTO op_fcomi_ST0_FT0(void)
+{
+ int eflags;
+ eflags = cc_table[CC_OP].compute_all();
+ eflags &= ~(CC_Z | CC_P | CC_C);
+ if (ST0 < FT0)
+ eflags |= CC_C;
+ else if (ST0 == FT0)
+ eflags |= CC_Z;
+ CC_SRC = eflags;
+ FORCE_RET();
+}
+
+/* XXX: handle nans */
+void OPPROTO op_fucomi_ST0_FT0(void)
+{
+ int eflags;
+ eflags = cc_table[CC_OP].compute_all();
+ eflags &= ~(CC_Z | CC_P | CC_C);
+ if (ST0 < FT0)
+ eflags |= CC_C;
+ else if (ST0 == FT0)
+ eflags |= CC_Z;
+ CC_SRC = eflags;
+ FORCE_RET();
+}
+
+void OPPROTO op_fadd_ST0_FT0(void)
+{
+ ST0 += FT0;
+}
+
+void OPPROTO op_fmul_ST0_FT0(void)
+{
+ ST0 *= FT0;
+}
+
+void OPPROTO op_fsub_ST0_FT0(void)
+{
+ ST0 -= FT0;
+}
+
+void OPPROTO op_fsubr_ST0_FT0(void)
+{
+ ST0 = FT0 - ST0;
+}
+
+void OPPROTO op_fdiv_ST0_FT0(void)
+{
+ ST0 /= FT0;
+}
+
+void OPPROTO op_fdivr_ST0_FT0(void)
+{
+ ST0 = FT0 / ST0;
+}
+
+/* fp operations between STN and ST0 */
+
+void OPPROTO op_fadd_STN_ST0(void)
+{
+ ST(PARAM1) += ST0;
+}
+
+void OPPROTO op_fmul_STN_ST0(void)
+{
+ ST(PARAM1) *= ST0;
+}
+
+void OPPROTO op_fsub_STN_ST0(void)
+{
+ ST(PARAM1) -= ST0;
+}
+
+void OPPROTO op_fsubr_STN_ST0(void)
+{
+ CPU86_LDouble *p;
+ p = &ST(PARAM1);
+ *p = ST0 - *p;
+}
+
+void OPPROTO op_fdiv_STN_ST0(void)
+{
+ ST(PARAM1) /= ST0;
+}
+
+void OPPROTO op_fdivr_STN_ST0(void)
+{
+ CPU86_LDouble *p;
+ p = &ST(PARAM1);
+ *p = ST0 / *p;
+}
+
+/* misc FPU operations */
+void OPPROTO op_fchs_ST0(void)
+{
+ ST0 = -ST0;
+}
+
+void OPPROTO op_fabs_ST0(void)
+{
+ ST0 = fabs(ST0);
+}
+
+void OPPROTO op_fxam_ST0(void)
+{
+ helper_fxam_ST0();
+}
+
+void OPPROTO op_fld1_ST0(void)
+{
+ ST0 = f15rk[1];
+}
+
+void OPPROTO op_fldl2t_ST0(void)
+{
+ ST0 = f15rk[6];
+}
+
+void OPPROTO op_fldl2e_ST0(void)
+{
+ ST0 = f15rk[5];
+}
+
+void OPPROTO op_fldpi_ST0(void)
+{
+ ST0 = f15rk[2];
+}
+
+void OPPROTO op_fldlg2_ST0(void)
+{
+ ST0 = f15rk[3];
+}
+
+void OPPROTO op_fldln2_ST0(void)
+{
+ ST0 = f15rk[4];
+}
+
+void OPPROTO op_fldz_ST0(void)
+{
+ ST0 = f15rk[0];
+}
+
+void OPPROTO op_fldz_FT0(void)
+{
+ ST0 = f15rk[0];
+}
+
+/* associated heplers to reduce generated code length and to simplify
+ relocation (FP constants are usually stored in .rodata section) */
+
+void OPPROTO op_f2xm1(void)
+{
+ helper_f2xm1();
+}
+
+void OPPROTO op_fyl2x(void)
+{
+ helper_fyl2x();
+}
+
+void OPPROTO op_fptan(void)
+{
+ helper_fptan();
+}
+
+void OPPROTO op_fpatan(void)
+{
+ helper_fpatan();
+}
+
+void OPPROTO op_fxtract(void)
+{
+ helper_fxtract();
+}
+
+void OPPROTO op_fprem1(void)
+{
+ helper_fprem1();
+}
+
+
+void OPPROTO op_fprem(void)
+{
+ helper_fprem();
+}
+
+void OPPROTO op_fyl2xp1(void)
+{
+ helper_fyl2xp1();
+}
+
+void OPPROTO op_fsqrt(void)
+{
+ helper_fsqrt();
+}
+
+void OPPROTO op_fsincos(void)
+{
+ helper_fsincos();
+}
+
+void OPPROTO op_frndint(void)
+{
+ helper_frndint();
+}
+
+void OPPROTO op_fscale(void)
+{
+ helper_fscale();
+}
+
+void OPPROTO op_fsin(void)
+{
+ helper_fsin();
+}
+
+void OPPROTO op_fcos(void)
+{
+ helper_fcos();
+}
+
+void OPPROTO op_fnstsw_A0(void)
+{
+ int fpus;
+ fpus = (env->fpus & ~0x3800) | (env->fpstt & 0x7) << 11;
+ stw((void *)A0, fpus);
+}
+
+void OPPROTO op_fnstsw_EAX(void)
+{
+ int fpus;
+ fpus = (env->fpus & ~0x3800) | (env->fpstt & 0x7) << 11;
+ EAX = (EAX & 0xffff0000) | fpus;
+}
+
+void OPPROTO op_fnstcw_A0(void)
+{
+ stw((void *)A0, env->fpuc);
+}
+
+void OPPROTO op_fldcw_A0(void)
+{
+ int rnd_type;
+ env->fpuc = lduw((void *)A0);
+ /* set rounding mode */
+ switch(env->fpuc & RC_MASK) {
+ default:
+ case RC_NEAR:
+ rnd_type = FE_TONEAREST;
+ break;
+ case RC_DOWN:
+ rnd_type = FE_DOWNWARD;
+ break;
+ case RC_UP:
+ rnd_type = FE_UPWARD;
+ break;
+ case RC_CHOP:
+ rnd_type = FE_TOWARDZERO;
+ break;
+ }
+ fesetround(rnd_type);
+}
+
+void OPPROTO op_fclex(void)
+{
+ env->fpus &= 0x7f00;
+}
+
+void OPPROTO op_fninit(void)
+{
+ env->fpus = 0;
+ env->fpstt = 0;
+ env->fpuc = 0x37f;
+ env->fptags[0] = 1;
+ env->fptags[1] = 1;
+ env->fptags[2] = 1;
+ env->fptags[3] = 1;
+ env->fptags[4] = 1;
+ env->fptags[5] = 1;
+ env->fptags[6] = 1;
+ env->fptags[7] = 1;
+}
+
+void OPPROTO op_fnstenv_A0(void)
+{
+ helper_fstenv((uint8_t *)A0, PARAM1);
+}
+
+void OPPROTO op_fldenv_A0(void)
+{
+ helper_fldenv((uint8_t *)A0, PARAM1);
+}
+
+void OPPROTO op_fnsave_A0(void)
+{
+ helper_fsave((uint8_t *)A0, PARAM1);
+}
+
+void OPPROTO op_frstor_A0(void)
+{
+ helper_frstor((uint8_t *)A0, PARAM1);
+}
+
+/* threading support */
+void OPPROTO op_lock(void)
+{
+ cpu_lock();
+}
+
+void OPPROTO op_unlock(void)
+{
+ cpu_unlock();
+}
+