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authorBlue Swirl <blauwirbel@gmail.com>2012-04-28 20:21:41 +0000
committerBlue Swirl <blauwirbel@gmail.com>2012-06-28 20:28:08 +0000
commitf299f4374affb6b838765841bb69a6e92566a9a8 (patch)
treebfd3528c1d2dd438e1a5c119043930a37b5ce610 /target-i386/op_helper.c
parente01d9d31d9fd5824a1b0279a3631a2d66b5185ea (diff)
x86: split off FPU helpers
Move FPU and MMX/SSE helpers to fpu_helpers.c. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Diffstat (limited to 'target-i386/op_helper.c')
-rw-r--r--target-i386/op_helper.c1277
1 files changed, 0 insertions, 1277 deletions
diff --git a/target-i386/op_helper.c b/target-i386/op_helper.c
index 86259363f3..3b77972527 100644
--- a/target-i386/op_helper.c
+++ b/target-i386/op_helper.c
@@ -17,7 +17,6 @@
* License along with this library; if not, see <http://www.gnu.org/licenses/>.
*/
-#include <math.h>
#include "cpu.h"
#include "dyngen-exec.h"
#include "host-utils.h"
@@ -52,64 +51,6 @@ static inline target_long lshift(target_long x, int n)
}
}
-#define FPU_RC_MASK 0xc00
-#define FPU_RC_NEAR 0x000
-#define FPU_RC_DOWN 0x400
-#define FPU_RC_UP 0x800
-#define FPU_RC_CHOP 0xc00
-
-#define MAXTAN 9223372036854775808.0
-
-/* the following deal with x86 long double-precision numbers */
-#define MAXEXPD 0x7fff
-#define EXPBIAS 16383
-#define EXPD(fp) (fp.l.upper & 0x7fff)
-#define SIGND(fp) ((fp.l.upper) & 0x8000)
-#define MANTD(fp) (fp.l.lower)
-#define BIASEXPONENT(fp) fp.l.upper = (fp.l.upper & ~(0x7fff)) | EXPBIAS
-
-static inline void fpush(void)
-{
- env->fpstt = (env->fpstt - 1) & 7;
- env->fptags[env->fpstt] = 0; /* validate stack entry */
-}
-
-static inline void fpop(void)
-{
- env->fptags[env->fpstt] = 1; /* invalidate stack entry */
- env->fpstt = (env->fpstt + 1) & 7;
-}
-
-static inline floatx80 helper_fldt(target_ulong ptr)
-{
- CPU_LDoubleU temp;
-
- temp.l.lower = ldq(ptr);
- temp.l.upper = lduw(ptr + 8);
- return temp.d;
-}
-
-static inline void helper_fstt(floatx80 f, target_ulong ptr)
-{
- CPU_LDoubleU temp;
-
- temp.d = f;
- stq(ptr, temp.l.lower);
- stw(ptr + 8, temp.l.upper);
-}
-
-#define FPUS_IE (1 << 0)
-#define FPUS_DE (1 << 1)
-#define FPUS_ZE (1 << 2)
-#define FPUS_OE (1 << 3)
-#define FPUS_UE (1 << 4)
-#define FPUS_PE (1 << 5)
-#define FPUS_SF (1 << 6)
-#define FPUS_SE (1 << 7)
-#define FPUS_B (1 << 15)
-
-#define FPUC_EM 0x3f
-
static inline uint32_t compute_eflags(void)
{
return env->eflags | helper_cc_compute_all(CC_OP) | (DF & DF_MASK);
@@ -189,10 +130,6 @@ static const uint8_t rclb_table[32] = {
6, 7, 8, 0, 1, 2, 3, 4,
};
-#define floatx80_lg2 make_floatx80(0x3ffd, 0x9a209a84fbcff799LL)
-#define floatx80_l2e make_floatx80(0x3fff, 0xb8aa3b295c17f0bcLL)
-#define floatx80_l2t make_floatx80(0x4000, 0xd49a784bcd1b8afeLL)
-
/* broken thread support */
static spinlock_t global_cpu_lock = SPIN_LOCK_UNLOCKED;
@@ -3750,993 +3687,6 @@ void helper_verw(target_ulong selector1)
CC_SRC = eflags | CC_Z;
}
-/* x87 FPU helpers */
-
-static inline double floatx80_to_double(floatx80 a)
-{
- union {
- float64 f64;
- double d;
- } u;
-
- u.f64 = floatx80_to_float64(a, &env->fp_status);
- return u.d;
-}
-
-static inline floatx80 double_to_floatx80(double a)
-{
- union {
- float64 f64;
- double d;
- } u;
-
- u.d = a;
- return float64_to_floatx80(u.f64, &env->fp_status);
-}
-
-static void fpu_set_exception(int mask)
-{
- env->fpus |= mask;
- if (env->fpus & (~env->fpuc & FPUC_EM)) {
- env->fpus |= FPUS_SE | FPUS_B;
- }
-}
-
-static inline floatx80 helper_fdiv(floatx80 a, floatx80 b)
-{
- if (floatx80_is_zero(b)) {
- fpu_set_exception(FPUS_ZE);
- }
- return floatx80_div(a, b, &env->fp_status);
-}
-
-static void fpu_raise_exception(void)
-{
- if (env->cr[0] & CR0_NE_MASK) {
- raise_exception(env, EXCP10_COPR);
- }
-#if !defined(CONFIG_USER_ONLY)
- else {
- cpu_set_ferr(env);
- }
-#endif
-}
-
-void helper_flds_FT0(uint32_t val)
-{
- union {
- float32 f;
- uint32_t i;
- } u;
-
- u.i = val;
- FT0 = float32_to_floatx80(u.f, &env->fp_status);
-}
-
-void helper_fldl_FT0(uint64_t val)
-{
- union {
- float64 f;
- uint64_t i;
- } u;
-
- u.i = val;
- FT0 = float64_to_floatx80(u.f, &env->fp_status);
-}
-
-void helper_fildl_FT0(int32_t val)
-{
- FT0 = int32_to_floatx80(val, &env->fp_status);
-}
-
-void helper_flds_ST0(uint32_t val)
-{
- int new_fpstt;
- union {
- float32 f;
- uint32_t i;
- } u;
-
- new_fpstt = (env->fpstt - 1) & 7;
- u.i = val;
- env->fpregs[new_fpstt].d = float32_to_floatx80(u.f, &env->fp_status);
- env->fpstt = new_fpstt;
- env->fptags[new_fpstt] = 0; /* validate stack entry */
-}
-
-void helper_fldl_ST0(uint64_t val)
-{
- int new_fpstt;
- union {
- float64 f;
- uint64_t i;
- } u;
-
- new_fpstt = (env->fpstt - 1) & 7;
- u.i = val;
- env->fpregs[new_fpstt].d = float64_to_floatx80(u.f, &env->fp_status);
- env->fpstt = new_fpstt;
- env->fptags[new_fpstt] = 0; /* validate stack entry */
-}
-
-void helper_fildl_ST0(int32_t val)
-{
- int new_fpstt;
-
- new_fpstt = (env->fpstt - 1) & 7;
- env->fpregs[new_fpstt].d = int32_to_floatx80(val, &env->fp_status);
- env->fpstt = new_fpstt;
- env->fptags[new_fpstt] = 0; /* validate stack entry */
-}
-
-void helper_fildll_ST0(int64_t val)
-{
- int new_fpstt;
-
- new_fpstt = (env->fpstt - 1) & 7;
- env->fpregs[new_fpstt].d = int64_to_floatx80(val, &env->fp_status);
- env->fpstt = new_fpstt;
- env->fptags[new_fpstt] = 0; /* validate stack entry */
-}
-
-uint32_t helper_fsts_ST0(void)
-{
- union {
- float32 f;
- uint32_t i;
- } u;
-
- u.f = floatx80_to_float32(ST0, &env->fp_status);
- return u.i;
-}
-
-uint64_t helper_fstl_ST0(void)
-{
- union {
- float64 f;
- uint64_t i;
- } u;
-
- u.f = floatx80_to_float64(ST0, &env->fp_status);
- return u.i;
-}
-
-int32_t helper_fist_ST0(void)
-{
- int32_t val;
-
- val = floatx80_to_int32(ST0, &env->fp_status);
- if (val != (int16_t)val) {
- val = -32768;
- }
- return val;
-}
-
-int32_t helper_fistl_ST0(void)
-{
- int32_t val;
-
- val = floatx80_to_int32(ST0, &env->fp_status);
- return val;
-}
-
-int64_t helper_fistll_ST0(void)
-{
- int64_t val;
-
- val = floatx80_to_int64(ST0, &env->fp_status);
- return val;
-}
-
-int32_t helper_fistt_ST0(void)
-{
- int32_t val;
-
- val = floatx80_to_int32_round_to_zero(ST0, &env->fp_status);
- if (val != (int16_t)val) {
- val = -32768;
- }
- return val;
-}
-
-int32_t helper_fisttl_ST0(void)
-{
- int32_t val;
-
- val = floatx80_to_int32_round_to_zero(ST0, &env->fp_status);
- return val;
-}
-
-int64_t helper_fisttll_ST0(void)
-{
- int64_t val;
-
- val = floatx80_to_int64_round_to_zero(ST0, &env->fp_status);
- return val;
-}
-
-void helper_fldt_ST0(target_ulong ptr)
-{
- int new_fpstt;
-
- new_fpstt = (env->fpstt - 1) & 7;
- env->fpregs[new_fpstt].d = helper_fldt(ptr);
- env->fpstt = new_fpstt;
- env->fptags[new_fpstt] = 0; /* validate stack entry */
-}
-
-void helper_fstt_ST0(target_ulong ptr)
-{
- helper_fstt(ST0, ptr);
-}
-
-void helper_fpush(void)
-{
- fpush();
-}
-
-void helper_fpop(void)
-{
- fpop();
-}
-
-void helper_fdecstp(void)
-{
- env->fpstt = (env->fpstt - 1) & 7;
- env->fpus &= ~0x4700;
-}
-
-void helper_fincstp(void)
-{
- env->fpstt = (env->fpstt + 1) & 7;
- env->fpus &= ~0x4700;
-}
-
-/* FPU move */
-
-void helper_ffree_STN(int st_index)
-{
- env->fptags[(env->fpstt + st_index) & 7] = 1;
-}
-
-void helper_fmov_ST0_FT0(void)
-{
- ST0 = FT0;
-}
-
-void helper_fmov_FT0_STN(int st_index)
-{
- FT0 = ST(st_index);
-}
-
-void helper_fmov_ST0_STN(int st_index)
-{
- ST0 = ST(st_index);
-}
-
-void helper_fmov_STN_ST0(int st_index)
-{
- ST(st_index) = ST0;
-}
-
-void helper_fxchg_ST0_STN(int st_index)
-{
- floatx80 tmp;
-
- tmp = ST(st_index);
- ST(st_index) = ST0;
- ST0 = tmp;
-}
-
-/* FPU operations */
-
-static const int fcom_ccval[4] = {0x0100, 0x4000, 0x0000, 0x4500};
-
-void helper_fcom_ST0_FT0(void)
-{
- int ret;
-
- ret = floatx80_compare(ST0, FT0, &env->fp_status);
- env->fpus = (env->fpus & ~0x4500) | fcom_ccval[ret + 1];
-}
-
-void helper_fucom_ST0_FT0(void)
-{
- int ret;
-
- ret = floatx80_compare_quiet(ST0, FT0, &env->fp_status);
- env->fpus = (env->fpus & ~0x4500) | fcom_ccval[ret + 1];
-}
-
-static const int fcomi_ccval[4] = {CC_C, CC_Z, 0, CC_Z | CC_P | CC_C};
-
-void helper_fcomi_ST0_FT0(void)
-{
- int eflags;
- int ret;
-
- ret = floatx80_compare(ST0, FT0, &env->fp_status);
- eflags = helper_cc_compute_all(CC_OP);
- eflags = (eflags & ~(CC_Z | CC_P | CC_C)) | fcomi_ccval[ret + 1];
- CC_SRC = eflags;
-}
-
-void helper_fucomi_ST0_FT0(void)
-{
- int eflags;
- int ret;
-
- ret = floatx80_compare_quiet(ST0, FT0, &env->fp_status);
- eflags = helper_cc_compute_all(CC_OP);
- eflags = (eflags & ~(CC_Z | CC_P | CC_C)) | fcomi_ccval[ret + 1];
- CC_SRC = eflags;
-}
-
-void helper_fadd_ST0_FT0(void)
-{
- ST0 = floatx80_add(ST0, FT0, &env->fp_status);
-}
-
-void helper_fmul_ST0_FT0(void)
-{
- ST0 = floatx80_mul(ST0, FT0, &env->fp_status);
-}
-
-void helper_fsub_ST0_FT0(void)
-{
- ST0 = floatx80_sub(ST0, FT0, &env->fp_status);
-}
-
-void helper_fsubr_ST0_FT0(void)
-{
- ST0 = floatx80_sub(FT0, ST0, &env->fp_status);
-}
-
-void helper_fdiv_ST0_FT0(void)
-{
- ST0 = helper_fdiv(ST0, FT0);
-}
-
-void helper_fdivr_ST0_FT0(void)
-{
- ST0 = helper_fdiv(FT0, ST0);
-}
-
-/* fp operations between STN and ST0 */
-
-void helper_fadd_STN_ST0(int st_index)
-{
- ST(st_index) = floatx80_add(ST(st_index), ST0, &env->fp_status);
-}
-
-void helper_fmul_STN_ST0(int st_index)
-{
- ST(st_index) = floatx80_mul(ST(st_index), ST0, &env->fp_status);
-}
-
-void helper_fsub_STN_ST0(int st_index)
-{
- ST(st_index) = floatx80_sub(ST(st_index), ST0, &env->fp_status);
-}
-
-void helper_fsubr_STN_ST0(int st_index)
-{
- ST(st_index) = floatx80_sub(ST0, ST(st_index), &env->fp_status);
-}
-
-void helper_fdiv_STN_ST0(int st_index)
-{
- floatx80 *p;
-
- p = &ST(st_index);
- *p = helper_fdiv(*p, ST0);
-}
-
-void helper_fdivr_STN_ST0(int st_index)
-{
- floatx80 *p;
-
- p = &ST(st_index);
- *p = helper_fdiv(ST0, *p);
-}
-
-/* misc FPU operations */
-void helper_fchs_ST0(void)
-{
- ST0 = floatx80_chs(ST0);
-}
-
-void helper_fabs_ST0(void)
-{
- ST0 = floatx80_abs(ST0);
-}
-
-void helper_fld1_ST0(void)
-{
- ST0 = floatx80_one;
-}
-
-void helper_fldl2t_ST0(void)
-{
- ST0 = floatx80_l2t;
-}
-
-void helper_fldl2e_ST0(void)
-{
- ST0 = floatx80_l2e;
-}
-
-void helper_fldpi_ST0(void)
-{
- ST0 = floatx80_pi;
-}
-
-void helper_fldlg2_ST0(void)
-{
- ST0 = floatx80_lg2;
-}
-
-void helper_fldln2_ST0(void)
-{
- ST0 = floatx80_ln2;
-}
-
-void helper_fldz_ST0(void)
-{
- ST0 = floatx80_zero;
-}
-
-void helper_fldz_FT0(void)
-{
- FT0 = floatx80_zero;
-}
-
-uint32_t helper_fnstsw(void)
-{
- return (env->fpus & ~0x3800) | (env->fpstt & 0x7) << 11;
-}
-
-uint32_t helper_fnstcw(void)
-{
- return env->fpuc;
-}
-
-static void update_fp_status(void)
-{
- int rnd_type;
-
- /* set rounding mode */
- switch (env->fpuc & FPU_RC_MASK) {
- default:
- case FPU_RC_NEAR:
- rnd_type = float_round_nearest_even;
- break;
- case FPU_RC_DOWN:
- rnd_type = float_round_down;
- break;
- case FPU_RC_UP:
- rnd_type = float_round_up;
- break;
- case FPU_RC_CHOP:
- rnd_type = float_round_to_zero;
- break;
- }
- set_float_rounding_mode(rnd_type, &env->fp_status);
- switch ((env->fpuc >> 8) & 3) {
- case 0:
- rnd_type = 32;
- break;
- case 2:
- rnd_type = 64;
- break;
- case 3:
- default:
- rnd_type = 80;
- break;
- }
- set_floatx80_rounding_precision(rnd_type, &env->fp_status);
-}
-
-void helper_fldcw(uint32_t val)
-{
- env->fpuc = val;
- update_fp_status();
-}
-
-void helper_fclex(void)
-{
- env->fpus &= 0x7f00;
-}
-
-void helper_fwait(void)
-{
- if (env->fpus & FPUS_SE) {
- fpu_raise_exception();
- }
-}
-
-void helper_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;
-}
-
-/* BCD ops */
-
-void helper_fbld_ST0(target_ulong ptr)
-{
- floatx80 tmp;
- uint64_t val;
- unsigned int v;
- int i;
-
- val = 0;
- for (i = 8; i >= 0; i--) {
- v = ldub(ptr + i);
- val = (val * 100) + ((v >> 4) * 10) + (v & 0xf);
- }
- tmp = int64_to_floatx80(val, &env->fp_status);
- if (ldub(ptr + 9) & 0x80) {
- floatx80_chs(tmp);
- }
- fpush();
- ST0 = tmp;
-}
-
-void helper_fbst_ST0(target_ulong ptr)
-{
- int v;
- target_ulong mem_ref, mem_end;
- int64_t val;
-
- val = floatx80_to_int64(ST0, &env->fp_status);
- mem_ref = ptr;
- mem_end = mem_ref + 9;
- if (val < 0) {
- stb(mem_end, 0x80);
- val = -val;
- } else {
- stb(mem_end, 0x00);
- }
- while (mem_ref < mem_end) {
- if (val == 0) {
- break;
- }
- v = val % 100;
- val = val / 100;
- v = ((v / 10) << 4) | (v % 10);
- stb(mem_ref++, v);
- }
- while (mem_ref < mem_end) {
- stb(mem_ref++, 0);
- }
-}
-
-void helper_f2xm1(void)
-{
- double val = floatx80_to_double(ST0);
-
- val = pow(2.0, val) - 1.0;
- ST0 = double_to_floatx80(val);
-}
-
-void helper_fyl2x(void)
-{
- double fptemp = floatx80_to_double(ST0);
-
- if (fptemp > 0.0) {
- fptemp = log(fptemp) / log(2.0); /* log2(ST) */
- fptemp *= floatx80_to_double(ST1);
- ST1 = double_to_floatx80(fptemp);
- fpop();
- } else {
- env->fpus &= ~0x4700;
- env->fpus |= 0x400;
- }
-}
-
-void helper_fptan(void)
-{
- double fptemp = floatx80_to_double(ST0);
-
- if ((fptemp > MAXTAN) || (fptemp < -MAXTAN)) {
- env->fpus |= 0x400;
- } else {
- fptemp = tan(fptemp);
- ST0 = double_to_floatx80(fptemp);
- fpush();
- ST0 = floatx80_one;
- env->fpus &= ~0x400; /* C2 <-- 0 */
- /* the above code is for |arg| < 2**52 only */
- }
-}
-
-void helper_fpatan(void)
-{
- double fptemp, fpsrcop;
-
- fpsrcop = floatx80_to_double(ST1);
- fptemp = floatx80_to_double(ST0);
- ST1 = double_to_floatx80(atan2(fpsrcop, fptemp));
- fpop();
-}
-
-void helper_fxtract(void)
-{
- CPU_LDoubleU temp;
-
- temp.d = ST0;
-
- if (floatx80_is_zero(ST0)) {
- /* Easy way to generate -inf and raising division by 0 exception */
- ST0 = floatx80_div(floatx80_chs(floatx80_one), floatx80_zero,
- &env->fp_status);
- fpush();
- ST0 = temp.d;
- } else {
- int expdif;
-
- expdif = EXPD(temp) - EXPBIAS;
- /* DP exponent bias */
- ST0 = int32_to_floatx80(expdif, &env->fp_status);
- fpush();
- BIASEXPONENT(temp);
- ST0 = temp.d;
- }
-}
-
-void helper_fprem1(void)
-{
- double st0, st1, dblq, fpsrcop, fptemp;
- CPU_LDoubleU fpsrcop1, fptemp1;
- int expdif;
- signed long long int q;
-
- st0 = floatx80_to_double(ST0);
- st1 = floatx80_to_double(ST1);
-
- if (isinf(st0) || isnan(st0) || isnan(st1) || (st1 == 0.0)) {
- ST0 = double_to_floatx80(0.0 / 0.0); /* NaN */
- env->fpus &= ~0x4700; /* (C3,C2,C1,C0) <-- 0000 */
- return;
- }
-
- fpsrcop = st0;
- fptemp = st1;
- fpsrcop1.d = ST0;
- fptemp1.d = ST1;
- expdif = EXPD(fpsrcop1) - EXPD(fptemp1);
-
- if (expdif < 0) {
- /* optimisation? taken from the AMD docs */
- env->fpus &= ~0x4700; /* (C3,C2,C1,C0) <-- 0000 */
- /* ST0 is unchanged */
- return;
- }
-
- if (expdif < 53) {
- dblq = fpsrcop / fptemp;
- /* round dblq towards nearest integer */
- dblq = rint(dblq);
- st0 = fpsrcop - fptemp * dblq;
-
- /* convert dblq to q by truncating towards zero */
- if (dblq < 0.0) {
- q = (signed long long int)(-dblq);
- } else {
- q = (signed long long int)dblq;
- }
-
- env->fpus &= ~0x4700; /* (C3,C2,C1,C0) <-- 0000 */
- /* (C0,C3,C1) <-- (q2,q1,q0) */
- env->fpus |= (q & 0x4) << (8 - 2); /* (C0) <-- q2 */
- env->fpus |= (q & 0x2) << (14 - 1); /* (C3) <-- q1 */
- env->fpus |= (q & 0x1) << (9 - 0); /* (C1) <-- q0 */
- } else {
- env->fpus |= 0x400; /* C2 <-- 1 */
- fptemp = pow(2.0, expdif - 50);
- fpsrcop = (st0 / st1) / fptemp;
- /* fpsrcop = integer obtained by chopping */
- fpsrcop = (fpsrcop < 0.0) ?
- -(floor(fabs(fpsrcop))) : floor(fpsrcop);
- st0 -= (st1 * fpsrcop * fptemp);
- }
- ST0 = double_to_floatx80(st0);
-}
-
-void helper_fprem(void)
-{
- double st0, st1, dblq, fpsrcop, fptemp;
- CPU_LDoubleU fpsrcop1, fptemp1;
- int expdif;
- signed long long int q;
-
- st0 = floatx80_to_double(ST0);
- st1 = floatx80_to_double(ST1);
-
- if (isinf(st0) || isnan(st0) || isnan(st1) || (st1 == 0.0)) {
- ST0 = double_to_floatx80(0.0 / 0.0); /* NaN */
- env->fpus &= ~0x4700; /* (C3,C2,C1,C0) <-- 0000 */
- return;
- }
-
- fpsrcop = st0;
- fptemp = st1;
- fpsrcop1.d = ST0;
- fptemp1.d = ST1;
- expdif = EXPD(fpsrcop1) - EXPD(fptemp1);
-
- if (expdif < 0) {
- /* optimisation? taken from the AMD docs */
- env->fpus &= ~0x4700; /* (C3,C2,C1,C0) <-- 0000 */
- /* ST0 is unchanged */
- return;
- }
-
- if (expdif < 53) {
- dblq = fpsrcop / fptemp; /* ST0 / ST1 */
- /* round dblq towards zero */
- dblq = (dblq < 0.0) ? ceil(dblq) : floor(dblq);
- st0 = fpsrcop - fptemp * dblq; /* fpsrcop is ST0 */
-
- /* convert dblq to q by truncating towards zero */
- if (dblq < 0.0) {
- q = (signed long long int)(-dblq);
- } else {
- q = (signed long long int)dblq;
- }
-
- env->fpus &= ~0x4700; /* (C3,C2,C1,C0) <-- 0000 */
- /* (C0,C3,C1) <-- (q2,q1,q0) */
- env->fpus |= (q & 0x4) << (8 - 2); /* (C0) <-- q2 */
- env->fpus |= (q & 0x2) << (14 - 1); /* (C3) <-- q1 */
- env->fpus |= (q & 0x1) << (9 - 0); /* (C1) <-- q0 */
- } else {
- int N = 32 + (expdif % 32); /* as per AMD docs */
-
- env->fpus |= 0x400; /* C2 <-- 1 */
- fptemp = pow(2.0, (double)(expdif - N));
- fpsrcop = (st0 / st1) / fptemp;
- /* fpsrcop = integer obtained by chopping */
- fpsrcop = (fpsrcop < 0.0) ?
- -(floor(fabs(fpsrcop))) : floor(fpsrcop);
- st0 -= (st1 * fpsrcop * fptemp);
- }
- ST0 = double_to_floatx80(st0);
-}
-
-void helper_fyl2xp1(void)
-{
- double fptemp = floatx80_to_double(ST0);
-
- if ((fptemp + 1.0) > 0.0) {
- fptemp = log(fptemp + 1.0) / log(2.0); /* log2(ST + 1.0) */
- fptemp *= floatx80_to_double(ST1);
- ST1 = double_to_floatx80(fptemp);
- fpop();
- } else {
- env->fpus &= ~0x4700;
- env->fpus |= 0x400;
- }
-}
-
-void helper_fsqrt(void)
-{
- if (floatx80_is_neg(ST0)) {
- env->fpus &= ~0x4700; /* (C3,C2,C1,C0) <-- 0000 */
- env->fpus |= 0x400;
- }
- ST0 = floatx80_sqrt(ST0, &env->fp_status);
-}
-
-void helper_fsincos(void)
-{
- double fptemp = floatx80_to_double(ST0);
-
- if ((fptemp > MAXTAN) || (fptemp < -MAXTAN)) {
- env->fpus |= 0x400;
- } else {
- ST0 = double_to_floatx80(sin(fptemp));
- fpush();
- ST0 = double_to_floatx80(cos(fptemp));
- env->fpus &= ~0x400; /* C2 <-- 0 */
- /* the above code is for |arg| < 2**63 only */
- }
-}
-
-void helper_frndint(void)
-{
- ST0 = floatx80_round_to_int(ST0, &env->fp_status);
-}
-
-void helper_fscale(void)
-{
- if (floatx80_is_any_nan(ST1)) {
- ST0 = ST1;
- } else {
- int n = floatx80_to_int32_round_to_zero(ST1, &env->fp_status);
- ST0 = floatx80_scalbn(ST0, n, &env->fp_status);
- }
-}
-
-void helper_fsin(void)
-{
- double fptemp = floatx80_to_double(ST0);
-
- if ((fptemp > MAXTAN) || (fptemp < -MAXTAN)) {
- env->fpus |= 0x400;
- } else {
- ST0 = double_to_floatx80(sin(fptemp));
- env->fpus &= ~0x400; /* C2 <-- 0 */
- /* the above code is for |arg| < 2**53 only */
- }
-}
-
-void helper_fcos(void)
-{
- double fptemp = floatx80_to_double(ST0);
-
- if ((fptemp > MAXTAN) || (fptemp < -MAXTAN)) {
- env->fpus |= 0x400;
- } else {
- ST0 = double_to_floatx80(cos(fptemp));
- env->fpus &= ~0x400; /* C2 <-- 0 */
- /* the above code is for |arg| < 2**63 only */
- }
-}
-
-void helper_fxam_ST0(void)
-{
- CPU_LDoubleU temp;
- int expdif;
-
- temp.d = ST0;
-
- env->fpus &= ~0x4700; /* (C3,C2,C1,C0) <-- 0000 */
- if (SIGND(temp)) {
- env->fpus |= 0x200; /* C1 <-- 1 */
- }
-
- /* XXX: test fptags too */
- expdif = EXPD(temp);
- if (expdif == MAXEXPD) {
- if (MANTD(temp) == 0x8000000000000000ULL) {
- env->fpus |= 0x500; /* Infinity */
- } else {
- env->fpus |= 0x100; /* NaN */
- }
- } else if (expdif == 0) {
- if (MANTD(temp) == 0) {
- env->fpus |= 0x4000; /* Zero */
- } else {
- env->fpus |= 0x4400; /* Denormal */
- }
- } else {
- env->fpus |= 0x400;
- }
-}
-
-void helper_fstenv(target_ulong ptr, int data32)
-{
- int fpus, fptag, exp, i;
- uint64_t mant;
- CPU_LDoubleU tmp;
-
- fpus = (env->fpus & ~0x3800) | (env->fpstt & 0x7) << 11;
- fptag = 0;
- for (i = 7; i >= 0; i--) {
- fptag <<= 2;
- if (env->fptags[i]) {
- fptag |= 3;
- } else {
- tmp.d = env->fpregs[i].d;
- exp = EXPD(tmp);
- mant = MANTD(tmp);
- if (exp == 0 && mant == 0) {
- /* zero */
- fptag |= 1;
- } else if (exp == 0 || exp == MAXEXPD
- || (mant & (1LL << 63)) == 0) {
- /* NaNs, infinity, denormal */
- fptag |= 2;
- }
- }
- }
- if (data32) {
- /* 32 bit */
- stl(ptr, env->fpuc);
- stl(ptr + 4, fpus);
- stl(ptr + 8, fptag);
- stl(ptr + 12, 0); /* fpip */
- stl(ptr + 16, 0); /* fpcs */
- stl(ptr + 20, 0); /* fpoo */
- stl(ptr + 24, 0); /* fpos */
- } else {
- /* 16 bit */
- stw(ptr, env->fpuc);
- stw(ptr + 2, fpus);
- stw(ptr + 4, fptag);
- stw(ptr + 6, 0);
- stw(ptr + 8, 0);
- stw(ptr + 10, 0);
- stw(ptr + 12, 0);
- }
-}
-
-void helper_fldenv(target_ulong ptr, int data32)
-{
- int i, fpus, fptag;
-
- if (data32) {
- env->fpuc = lduw(ptr);
- fpus = lduw(ptr + 4);
- fptag = lduw(ptr + 8);
- } else {
- env->fpuc = lduw(ptr);
- fpus = lduw(ptr + 2);
- fptag = lduw(ptr + 4);
- }
- env->fpstt = (fpus >> 11) & 7;
- env->fpus = fpus & ~0x3800;
- for (i = 0; i < 8; i++) {
- env->fptags[i] = ((fptag & 3) == 3);
- fptag >>= 2;
- }
-}
-
-void helper_fsave(target_ulong ptr, int data32)
-{
- floatx80 tmp;
- int i;
-
- helper_fstenv(ptr, data32);
-
- ptr += (14 << data32);
- for (i = 0; i < 8; i++) {
- tmp = ST(i);
- helper_fstt(tmp, ptr);
- ptr += 10;
- }
-
- /* fninit */
- 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 helper_frstor(target_ulong ptr, int data32)
-{
- floatx80 tmp;
- int i;
-
- helper_fldenv(ptr, data32);
- ptr += (14 << data32);
-
- for (i = 0; i < 8; i++) {
- tmp = helper_fldt(ptr);
- ST(i) = tmp;
- ptr += 10;
- }
-}
-
-
#if defined(CONFIG_USER_ONLY)
void cpu_x86_load_seg(CPUX86State *s, int seg_reg, int selector)
{
@@ -4753,162 +3703,7 @@ void cpu_x86_load_seg(CPUX86State *s, int seg_reg, int selector)
}
env = saved_env;
}
-
-void cpu_x86_fsave(CPUX86State *s, target_ulong ptr, int data32)
-{
- CPUX86State *saved_env;
-
- saved_env = env;
- env = s;
-
- helper_fsave(ptr, data32);
-
- env = saved_env;
-}
-
-void cpu_x86_frstor(CPUX86State *s, target_ulong ptr, int data32)
-{
- CPUX86State *saved_env;
-
- saved_env = env;
- env = s;
-
- helper_frstor(ptr, data32);
-
- env = saved_env;
-}
-#endif
-
-void helper_fxsave(target_ulong ptr, int data64)
-{
- int fpus, fptag, i, nb_xmm_regs;
- floatx80 tmp;
- target_ulong addr;
-
- /* The operand must be 16 byte aligned */
- if (ptr & 0xf) {
- raise_exception(env, EXCP0D_GPF);
- }
-
- fpus = (env->fpus & ~0x3800) | (env->fpstt & 0x7) << 11;
- fptag = 0;
- for (i = 0; i < 8; i++) {
- fptag |= (env->fptags[i] << i);
- }
- stw(ptr, env->fpuc);
- stw(ptr + 2, fpus);
- stw(ptr + 4, fptag ^ 0xff);
-#ifdef TARGET_X86_64
- if (data64) {
- stq(ptr + 0x08, 0); /* rip */
- stq(ptr + 0x10, 0); /* rdp */
- } else
#endif
- {
- stl(ptr + 0x08, 0); /* eip */
- stl(ptr + 0x0c, 0); /* sel */
- stl(ptr + 0x10, 0); /* dp */
- stl(ptr + 0x14, 0); /* sel */
- }
-
- addr = ptr + 0x20;
- for (i = 0; i < 8; i++) {
- tmp = ST(i);
- helper_fstt(tmp, addr);
- addr += 16;
- }
-
- if (env->cr[4] & CR4_OSFXSR_MASK) {
- /* XXX: finish it */
- stl(ptr + 0x18, env->mxcsr); /* mxcsr */
- stl(ptr + 0x1c, 0x0000ffff); /* mxcsr_mask */
- if (env->hflags & HF_CS64_MASK) {
- nb_xmm_regs = 16;
- } else {
- nb_xmm_regs = 8;
- }
- addr = ptr + 0xa0;
- /* Fast FXSAVE leaves out the XMM registers */
- if (!(env->efer & MSR_EFER_FFXSR)
- || (env->hflags & HF_CPL_MASK)
- || !(env->hflags & HF_LMA_MASK)) {
- for (i = 0; i < nb_xmm_regs; i++) {
- stq(addr, env->xmm_regs[i].XMM_Q(0));
- stq(addr + 8, env->xmm_regs[i].XMM_Q(1));
- addr += 16;
- }
- }
- }
-}
-
-void helper_fxrstor(target_ulong ptr, int data64)
-{
- int i, fpus, fptag, nb_xmm_regs;
- floatx80 tmp;
- target_ulong addr;
-
- /* The operand must be 16 byte aligned */
- if (ptr & 0xf) {
- raise_exception(env, EXCP0D_GPF);
- }
-
- env->fpuc = lduw(ptr);
- fpus = lduw(ptr + 2);
- fptag = lduw(ptr + 4);
- env->fpstt = (fpus >> 11) & 7;
- env->fpus = fpus & ~0x3800;
- fptag ^= 0xff;
- for (i = 0; i < 8; i++) {
- env->fptags[i] = ((fptag >> i) & 1);
- }
-
- addr = ptr + 0x20;
- for (i = 0; i < 8; i++) {
- tmp = helper_fldt(addr);
- ST(i) = tmp;
- addr += 16;
- }
-
- if (env->cr[4] & CR4_OSFXSR_MASK) {
- /* XXX: finish it */
- env->mxcsr = ldl(ptr + 0x18);
- /* ldl(ptr + 0x1c); */
- if (env->hflags & HF_CS64_MASK) {
- nb_xmm_regs = 16;
- } else {
- nb_xmm_regs = 8;
- }
- addr = ptr + 0xa0;
- /* Fast FXRESTORE leaves out the XMM registers */
- if (!(env->efer & MSR_EFER_FFXSR)
- || (env->hflags & HF_CPL_MASK)
- || !(env->hflags & HF_LMA_MASK)) {
- for (i = 0; i < nb_xmm_regs; i++) {
- env->xmm_regs[i].XMM_Q(0) = ldq(addr);
- env->xmm_regs[i].XMM_Q(1) = ldq(addr + 8);
- addr += 16;
- }
- }
- }
-}
-
-void cpu_get_fp80(uint64_t *pmant, uint16_t *pexp, floatx80 f)
-{
- CPU_LDoubleU temp;
-
- temp.d = f;
- *pmant = temp.l.lower;
- *pexp = temp.l.upper;
-}
-
-floatx80 cpu_set_fp80(uint64_t mant, uint16_t upper)
-{
- CPU_LDoubleU temp;
-
- temp.l.upper = upper;
- temp.l.lower = mant;
- return temp.d;
-}
#ifdef TARGET_X86_64
static void add128(uint64_t *plow, uint64_t *phigh, uint64_t a, uint64_t b)
@@ -5919,78 +4714,6 @@ void cpu_vmexit(CPUX86State *nenv, uint32_t exit_code, uint64_t exit_info_1)
#endif
-/* MMX/SSE */
-/* XXX: optimize by storing fptt and fptags in the static cpu state */
-
-#define SSE_DAZ 0x0040
-#define SSE_RC_MASK 0x6000
-#define SSE_RC_NEAR 0x0000
-#define SSE_RC_DOWN 0x2000
-#define SSE_RC_UP 0x4000
-#define SSE_RC_CHOP 0x6000
-#define SSE_FZ 0x8000
-
-static void update_sse_status(void)
-{
- int rnd_type;
-
- /* set rounding mode */
- switch (env->mxcsr & SSE_RC_MASK) {
- default:
- case SSE_RC_NEAR:
- rnd_type = float_round_nearest_even;
- break;
- case SSE_RC_DOWN:
- rnd_type = float_round_down;
- break;
- case SSE_RC_UP:
- rnd_type = float_round_up;
- break;
- case SSE_RC_CHOP:
- rnd_type = float_round_to_zero;
- break;
- }
- set_float_rounding_mode(rnd_type, &env->sse_status);
-
- /* set denormals are zero */
- set_flush_inputs_to_zero((env->mxcsr & SSE_DAZ) ? 1 : 0, &env->sse_status);
-
- /* set flush to zero */
- set_flush_to_zero((env->mxcsr & SSE_FZ) ? 1 : 0, &env->fp_status);
-}
-
-void helper_ldmxcsr(uint32_t val)
-{
- env->mxcsr = val;
- update_sse_status();
-}
-
-void helper_enter_mmx(void)
-{
- env->fpstt = 0;
- *(uint32_t *)(env->fptags) = 0;
- *(uint32_t *)(env->fptags + 4) = 0;
-}
-
-void helper_emms(void)
-{
- /* set to empty state */
- *(uint32_t *)(env->fptags) = 0x01010101;
- *(uint32_t *)(env->fptags + 4) = 0x01010101;
-}
-
-/* XXX: suppress */
-void helper_movq(void *d, void *s)
-{
- *(uint64_t *)d = *(uint64_t *)s;
-}
-
-#define SHIFT 0
-#include "ops_sse.h"
-
-#define SHIFT 1
-#include "ops_sse.h"
-
#define SHIFT 0
#include "helper_template.h"
#undef SHIFT