diff options
Diffstat (limited to 'sysdeps/powerpc/powerpc32/fpu/s_truncf.S')
| -rw-r--r-- | sysdeps/powerpc/powerpc32/fpu/s_truncf.S | 41 |
1 files changed, 13 insertions, 28 deletions
diff --git a/sysdeps/powerpc/powerpc32/fpu/s_truncf.S b/sysdeps/powerpc/powerpc32/fpu/s_truncf.S index 9a8dae9..3b6fe73 100644 --- a/sysdeps/powerpc/powerpc32/fpu/s_truncf.S +++ b/sysdeps/powerpc/powerpc32/fpu/s_truncf.S @@ -20,26 +20,16 @@ #include <sysdep.h> .section .rodata - .align 3 + .align 2 .type TWO23.0,@object - .size TWO23.0,8 + .size TWO23.0,2 TWO23.0: - .long 0x41600000 - .long 0 - .type NEGZERO.0,@object - .size NEGZERO.0,8 -NEGZERO.0: - .long 0x80000000 - .long 0 + .long 0x4b000000 - .section .rodata.cst8,"aM",@progbits,8 - .align 3 + .section .rodata.cst4,"aM",@progbits,4 + .align 2 .LC0: /* 2**23 */ - .long 0x41600000 - .long 0 -.LC1: /* -0.0 */ - .long 0x80000000 - .long 0 + .long 0x4b000000 /* float [fp1] truncf (float x [fp1]) IEEE 1003.1 trunc function. IEEE specifies "trunc to the integer @@ -56,10 +46,10 @@ ENTRY (__truncf) mflr r10 lwz r9,.LC0@got(10) mtlr r11 - lfd fp13,0(r9) + lfs fp13,0(r9) #else lis r9,.LC0@ha - lfd fp13,.LC0@l(r9) + lfs fp13,.LC0@l(r9) #endif fabs fp0,fp1 fsubs fp12,fp13,fp13 /* generate 0.0 */ @@ -70,23 +60,18 @@ ENTRY (__truncf) ble- cr6,.L4 fadds fp1,fp1,fp13 /* x+= TWO23; */ fsubs fp1,fp1,fp13 /* x-= TWO23; */ -.L9: + fabs fp1,fp1 /* if (x == 0.0) */ + /* x = 0.0; */ mtfsf 0x01,fp11 /* restore previous truncing mode. */ blr .L4: bge- cr6,.L9 /* if (x < 0.0) */ fsubs fp1,fp1,fp13 /* x-= TWO23; */ fadds fp1,fp1,fp13 /* x+= TWO23; */ - fcmpu cr5,fp1,fp12 /* if (x > 0.0) */ + fnabs fp1,fp1 /* if (x == 0.0) */ + /* x = -0.0; */ +.L9: mtfsf 0x01,fp11 /* restore previous rounding mode. */ - bnelr+ cr5 -#ifdef SHARED - lwz r9,.LC1@got(10) - lfd fp1,0(r9) -#else - lis r9,.LC1@ha - lfd fp1,.LC1@l(r9) -#endif blr END (__truncf) |