diff options
Diffstat (limited to 'target-i386/op_helper.c')
| -rw-r--r-- | target-i386/op_helper.c | 52 |
1 files changed, 26 insertions, 26 deletions
diff --git a/target-i386/op_helper.c b/target-i386/op_helper.c index 64c0bbf0ce..fd9d8d3117 100644 --- a/target-i386/op_helper.c +++ b/target-i386/op_helper.c @@ -17,6 +17,7 @@ * License along with this library; if not, see <http://www.gnu.org/licenses/>. */ +#include <math.h> #include "exec.h" #include "exec-all.h" #include "host-utils.h" @@ -3981,17 +3982,19 @@ void helper_fbst_ST0(target_ulong ptr) void helper_f2xm1(void) { - ST0 = pow(2.0,ST0) - 1.0; + double val = CPU86_LDouble_to_double(ST0); + val = pow(2.0, val) - 1.0; + ST0 = double_to_CPU86_LDouble(val); } void helper_fyl2x(void) { - CPU86_LDouble fptemp; + double fptemp = CPU86_LDouble_to_double(ST0); - fptemp = ST0; if (fptemp>0.0){ - fptemp = log(fptemp)/log(2.0); /* log2(ST) */ - ST1 *= fptemp; + fptemp = log(fptemp)/log(2.0); /* log2(ST) */ + fptemp *= CPU86_LDouble_to_double(ST1); + ST1 = double_to_CPU86_LDouble(fptemp); fpop(); } else { env->fpus &= (~0x4700); @@ -4001,15 +4004,15 @@ void helper_fyl2x(void) void helper_fptan(void) { - CPU86_LDouble fptemp; + double fptemp = CPU86_LDouble_to_double(ST0); - fptemp = ST0; if((fptemp > MAXTAN)||(fptemp < -MAXTAN)) { env->fpus |= 0x400; } else { - ST0 = tan(fptemp); + fptemp = tan(fptemp); + ST0 = double_to_CPU86_LDouble(fptemp); fpush(); - ST0 = 1.0; + ST0 = floatx_one; env->fpus &= (~0x400); /* C2 <-- 0 */ /* the above code is for |arg| < 2**52 only */ } @@ -4017,11 +4020,11 @@ void helper_fptan(void) void helper_fpatan(void) { - CPU86_LDouble fptemp, fpsrcop; + double fptemp, fpsrcop; - fpsrcop = ST1; - fptemp = ST0; - ST1 = atan2(fpsrcop,fptemp); + fpsrcop = CPU86_LDouble_to_double(ST1); + fptemp = CPU86_LDouble_to_double(ST0); + ST1 = double_to_CPU86_LDouble(atan2(fpsrcop, fptemp)); fpop(); } @@ -4159,12 +4162,12 @@ void helper_fprem(void) void helper_fyl2xp1(void) { - CPU86_LDouble fptemp; + double fptemp = CPU86_LDouble_to_double(ST0); - fptemp = ST0; if ((fptemp+1.0)>0.0) { fptemp = log(fptemp+1.0) / log(2.0); /* log2(ST+1.0) */ - ST1 *= fptemp; + fptemp *= CPU86_LDouble_to_double(ST1); + ST1 = double_to_CPU86_LDouble(fptemp); fpop(); } else { env->fpus &= (~0x4700); @@ -4183,15 +4186,14 @@ void helper_fsqrt(void) void helper_fsincos(void) { - CPU86_LDouble fptemp; + double fptemp = CPU86_LDouble_to_double(ST0); - fptemp = ST0; if ((fptemp > MAXTAN)||(fptemp < -MAXTAN)) { env->fpus |= 0x400; } else { - ST0 = sin(fptemp); + ST0 = double_to_CPU86_LDouble(sin(fptemp)); fpush(); - ST0 = cos(fptemp); + ST0 = double_to_CPU86_LDouble(cos(fptemp)); env->fpus &= (~0x400); /* C2 <-- 0 */ /* the above code is for |arg| < 2**63 only */ } @@ -4214,13 +4216,12 @@ void helper_fscale(void) void helper_fsin(void) { - CPU86_LDouble fptemp; + double fptemp = CPU86_LDouble_to_double(ST0); - fptemp = ST0; if ((fptemp > MAXTAN)||(fptemp < -MAXTAN)) { env->fpus |= 0x400; } else { - ST0 = sin(fptemp); + ST0 = double_to_CPU86_LDouble(sin(fptemp)); env->fpus &= (~0x400); /* C2 <-- 0 */ /* the above code is for |arg| < 2**53 only */ } @@ -4228,13 +4229,12 @@ void helper_fsin(void) void helper_fcos(void) { - CPU86_LDouble fptemp; + double fptemp = CPU86_LDouble_to_double(ST0); - fptemp = ST0; if((fptemp > MAXTAN)||(fptemp < -MAXTAN)) { env->fpus |= 0x400; } else { - ST0 = cos(fptemp); + ST0 = double_to_CPU86_LDouble(cos(fptemp)); env->fpus &= (~0x400); /* C2 <-- 0 */ /* the above code is for |arg5 < 2**63 only */ } |