diff options
Diffstat (limited to 'sysdeps/ia64/fpu/e_fmodl.S')
| -rw-r--r-- | sysdeps/ia64/fpu/e_fmodl.S | 972 |
1 files changed, 527 insertions, 445 deletions
diff --git a/sysdeps/ia64/fpu/e_fmodl.S b/sysdeps/ia64/fpu/e_fmodl.S index 85c9f6ef82..3e87eb090f 100644 --- a/sysdeps/ia64/fpu/e_fmodl.S +++ b/sysdeps/ia64/fpu/e_fmodl.S @@ -1,11 +1,10 @@ .file "fmodl.s" -// Copyright (C) 2000, 2001, Intel Corporation + +// Copyright (c) 2000 - 2004, Intel Corporation // All rights reserved. // -// Contributed 2/2/2000 by John Harrison, Cristina Iordache, Ted Kubaska, -// Bob Norin, Shane Story, and Ping Tak Peter Tang of the Computational -// Software Lab, Intel Corporation. +// Contributed 2000 by the Intel Numerics Group, Intel Corporation // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are @@ -21,7 +20,7 @@ // * The name of Intel Corporation may not be used to endorse or promote // products derived from this software without specific prior written // permission. -// + // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR @@ -36,555 +35,638 @@ // // Intel Corporation is the author of this code, and requests that all // problem reports or change requests be submitted to it directly at -// http://developer.intel.com/opensource. +// http://www.intel.com/software/products/opensource/libraries/num.htm. // // History //==================================================================== -// 2/02/00 Initial version -// 3/02/00 New Algorithm -// 4/04/00 Unwind support added -// 8/15/00 Bundle added after call to __libm_error_support to properly -// set [the previously overwritten] GR_Parameter_RESULT. -//11/28/00 Set FR_Y to f9 +// 02/02/00 Initial version +// 03/02/00 New Algorithm +// 04/04/00 Unwind support added +// 08/15/00 Bundle added after call to __libm_error_support to properly +// set [ the previously overwritten ] GR_Parameter_RESULT. +// 11/28/00 Set FR_Y to f9 +// 03/11/02 Fixed flags for fmodl(qnan, zero) +// 05/20/02 Cleaned up namespace and sf0 syntax +// 02/10/03 Reordered header:.section,.global,.proc,.align +// 04/28/03 Fix: fmod(sNaN, 0) no longer sets errno +// 11/23/04 Reformatted routine and improved speed // // API //==================================================================== -// long double fmodl(long double,long double); +// long double fmodl(long double, long double); // // Overview of operation //==================================================================== -// fmod(a,b)=a-i*b, -// where i is an integer such that, if b!=0, -// |i|<|a/b| and |a/b-i|<1 +// fmod(a, b)= a-i*b, +// where i is an integer such that, if b!= 0, +// |i|<|a/b| and |a/b-i|<1 // // Algorithm //==================================================================== // a). if |a|<|b|, return a -// b). get quotient and reciprocal overestimates accurate to -// 33 bits (q2,y2) +// b). get quotient and reciprocal overestimates accurate to +// 33 bits (q2, y2) // c). if the exponent difference (exponent(a)-exponent(b)) -// is less than 32, truncate quotient to integer and -// finish in one iteration -// d). if exponent(a)-exponent(b)>=32 (q2>=2^32) -// round quotient estimate to single precision (k=RN(q2)), -// calculate partial remainder (a'=a-k*b), -// get quotient estimate (a'*y2), and repeat from c). +// is less than 32, truncate quotient to integer and +// finish in one iteration +// d). if exponent(a)-exponent(b)>= 32 (q2>= 2^32) +// round quotient estimate to single precision (k= RN(q2)), +// calculate partial remainder (a'= a-k*b), +// get quotient estimate (a'*y2), and repeat from c). // // Registers used //==================================================================== -// Predicate registers: p6-p11 -// General registers: r2,r29,r32 (ar.pfs), r33-r39 -// Floating point registers: f6-f15 -#include "libm_support.h" +GR_SMALLBIASEXP = r2 +GR_2P32 = r3 +GR_SMALLBIASEXP = r20 +GR_ROUNDCONST = r21 +GR_SIG_B = r22 +GR_ARPFS = r23 +GR_TMP1 = r24 +GR_TMP2 = r25 +GR_TMP3 = r26 + +GR_SAVE_B0 = r33 +GR_SAVE_PFS = r34 +GR_SAVE_GP = r35 +GR_SAVE_SP = r36 + +GR_Parameter_X = r37 +GR_Parameter_Y = r38 +GR_Parameter_RESULT = r39 +GR_Parameter_TAG = r40 + +FR_X = f10 +FR_Y = f9 +FR_RESULT = f8 + +FR_ABS_A = f6 +FR_ABS_B = f7 +FR_Y_INV = f10 +FR_SMALLBIAS = f11 +FR_E0 = f12 +FR_Q = f13 +FR_E1 = f14 +FR_2P32 = f15 +FR_TMPX = f32 +FR_TMPY = f33 +FR_ROUNDCONST = f34 +FR_QINT = f35 +FR_QRND24 = f36 +FR_NORM_B = f37 +FR_TMP = f38 +FR_TMP2 = f39 +FR_DFLAG = f40 +FR_Y_INV0 = f41 +FR_Y_INV1 = f42 +FR_Q0 = f43 +FR_Q1 = f44 +FR_QINT_Z = f45 +FR_QREM = f46 +FR_B_SGN_A = f47 .section .text +GLOBAL_IEEE754_ENTRY(fmodl) -GR_SAVE_B0 = r33 -GR_SAVE_PFS = r34 -GR_SAVE_GP = r35 -GR_SAVE_SP = r36 +// inputs in f8, f9 +// result in f8 -GR_Parameter_X = r37 -GR_Parameter_Y = r38 -GR_Parameter_RESULT = r39 -GR_Parameter_TAG = r40 +{ .mfi + getf.sig GR_SIG_B = f9 + // FR_ABS_A = |a| + fmerge.s FR_ABS_A = f0, f8 + mov GR_SMALLBIASEXP = 0x0ffdd +} +{ .mfi + nop.m 0 + // FR_ABS_B = |b| + fmerge.s FR_ABS_B = f0, f9 + nop.i 0 +} +;; -FR_X = f10 -FR_Y = f9 -FR_RESULT = f8 +{ .mfi + setf.exp FR_SMALLBIAS = GR_SMALLBIASEXP + // (1) y0 + frcpa.s1 FR_Y_INV0, p6 = FR_ABS_A, FR_ABS_B + nop.i 0 +} +;; +{ .mlx + nop.m 0 + movl GR_ROUNDCONST = 0x33a00000 +} +;; +// eliminate special cases +{ .mmi + nop.m 0 + nop.m 0 + // y pseudo-zero ? + cmp.eq p7, p10 = GR_SIG_B, r0 +} +;; -.proc fmodl# -.align 32 -.global fmodl# -.align 32 +// set p7 if b +/-NAN, +/-inf, +/-0 +{ .mfi + nop.m 0 + (p10) fclass.m p7, p10 = f9, 0xe7 + nop.i 0 +} +;; -fmodl: -#ifdef _LIBC -.global __ieee754_fmodl -.type __ieee754_fmodl,@function -__ieee754_fmodl: -#endif -// inputs in f8, f9 -// result in f8 +{ .mfi + mov GR_2P32 = 0x1001f + // (2) q0 = a*y0 + (p6) fma.s1 FR_Q0 = FR_ABS_A, FR_Y_INV0, f0 + nop.i 0 +} +{ .mfi + nop.m 0 + // (3) e0 = 1 - b * y0 + (p6) fnma.s1 FR_E0 = FR_ABS_B, FR_Y_INV0, f1 + nop.i 0 +} +;; +// set p9 if a +/-NAN, +/-inf { .mfi - alloc r32=ar.pfs,1,4,4,0 - // f6=|a| - fmerge.s f6=f0,f8 - mov r2 = 0x0ffdd + nop.m 0 + fclass.m.unc p9, p11 = f8, 0xe3 + nop.i 0 } - {.mfi - getf.sig r29=f9 - // f7=|b| - fmerge.s f7=f0,f9 - nop.i 0;; + // |a| < |b|? Return a, p8=1 +{ .mfi + nop.m 0 + (p10) fcmp.lt.unc.s1 p8, p0 = FR_ABS_A, FR_ABS_B + nop.i 0 } +;; +// set p7 if b +/-NAN, +/-inf, +/-0 { .mfi - setf.exp f11 = r2 - // (1) y0 - frcpa.s1 f10,p6=f6,f7 - nop.i 0;; -} + nop.m 0 + // pseudo-NaN ? + (p10) fclass.nm p7, p0 = f9, 0xff + nop.i 0 +} +;; -// eliminate special cases -{.mmi -nop.m 0 -nop.m 0 -// y pseudo-zero ? -cmp.eq p7,p10=r29,r0;; +// set p9 if a is +/-NaN, +/-Inf +{ .mfi + nop.m 0 + (p11) fclass.nm p9, p0 = f8, 0xff + nop.i 0 +} +{ .mfi + nop.m 0 + // b denormal ? set D flag (if |a|<|b|) + (p8) fnma.s0 FR_DFLAG = f9, f1, f9 + nop.i 0 +} +;; + +{ .mfi + // FR_2P32 = 2^32 + setf.exp FR_2P32 = GR_2P32 + // (4) q1 = q0+e0*q0 + (p6) fma.s1 FR_Q1 = FR_E0, FR_Q0, FR_Q0 + nop.i 0 +} +{ .mfi + nop.m 0 + // (5) e1 = e0 * e0 + 2^-34 + (p6) fma.s1 FR_E1 = FR_E0, FR_E0, FR_SMALLBIAS + nop.i 0 } +;; -// Y +-NAN, +-inf, +-0? p7 { .mfi - nop.m 999 -(p10) fclass.m p7,p10 = f9, 0xe7 - nop.i 999;; + nop.m 0 + // normalize a (if |a|<|b|) + (p8) fma.s0 f8 = f8, f1, f0 + nop.i 0 } +{ .bbb + (p9) br.cond.spnt FMOD_A_NAN_INF + (p7) br.cond.spnt FMOD_B_NAN_INF_ZERO + // if |a|<|b|, return + (p8) br.ret.spnt b0 +} +;; -// qnan snan inf norm unorm 0 -+ -// 1 1 1 0 0 0 11 -// e 3 -// X +-NAN, +-inf, ? p9 { .mfi - nop.m 999 -(p0) fclass.m.unc p9,p11 = f8, 0xe3 - nop.i 999 + nop.m 0 + // (6) y1 = y0 + e0 * y0 + (p6) fma.s1 FR_Y_INV1 = FR_E0, FR_Y_INV0, FR_Y_INV0 + nop.i 0 } +;; -// |x| < |y|? Return x p8 { .mfi - nop.m 999 -(p10) fcmp.lt.unc.s1 p8,p0 = f6,f7 - nop.i 999 ;; -} - - { .mfi - mov r2=0x1001f - // (2) q0=a*y0 - (p6) fma.s1 f13=f6,f10,f0 - nop.i 0 -} { .mfi - nop.m 0 - // (3) e0 = 1 - b * y0 - (p6) fnma.s1 f12=f7,f10,f1 - nop.i 0;; -} - -// Y +-NAN, +-inf, +-0? p7 -{ .mfi - nop.m 999 - // pseudo-NaN ? -(p10) fclass.nm p7,p0 = f9, 0xff - nop.i 999 -} - -// qnan snan inf norm unorm 0 -+ -// 1 1 1 0 0 0 11 -// e 3 -// X +-NAN, +-inf, ? p9 - -{ .mfi - nop.m 999 -(p11) fclass.nm p9,p0 = f8, 0xff - nop.i 999;; -} - -{ .mfi - nop.m 0 - // y denormal ? set D flag (if |x|<|y|) - (p8) fnma.s0 f10=f9,f1,f9 - nop.i 0;; -} - - -{.mfi - nop.m 0 - // normalize x (if |x|<|y|) - (p8) fma.s0 f8=f8,f1,f0 - nop.i 0 -} -{.bbb - (p9) br.cond.spnt L(FMOD_X_NAN_INF) - (p7) br.cond.spnt L(FMOD_Y_NAN_INF_ZERO) - // if |x|<|y|, return - (p8) br.ret.spnt b0;; -} - - {.mfi - nop.m 0 - // x denormal ? set D flag - fnma.s0 f32=f6,f1,f6 - nop.i 0 -} -{.mfi - nop.m 0 - // y denormal ? set D flag - fnma.s0 f33=f7,f1,f7 - nop.i 0;; -} - - {.mfi - // f15=2^32 - setf.exp f15=r2 - // (4) q1=q0+e0*q0 - (p6) fma.s1 f13=f12,f13,f13 - nop.i 0 -} + nop.m 0 + // a denormal ? set D flag + // b denormal ? set D flag + fcmp.eq.s0 p12,p0 = FR_ABS_A, FR_ABS_B + nop.i 0 +} { .mfi - nop.m 0 - // (5) e1 = e0 * e0 + 2^-34 - (p6) fma.s1 f14=f12,f12,f11 - nop.i 0;; -} -{.mlx - nop.m 0 - movl r2=0x33a00000;; -} -{ .mfi - nop.m 0 - // (6) y1 = y0 + e0 * y0 - (p6) fma.s1 f10=f12,f10,f10 - nop.i 0;; -} -{.mfi - // set f12=1.25*2^{-24} - setf.s f12=r2 - // (7) q2=q1+e1*q1 - (p6) fma.s1 f13=f13,f14,f13 - nop.i 0;; -} -{.mfi - nop.m 0 - fmerge.s f9=f8,f9 - nop.i 0 -} -{ .mfi - nop.m 0 - // (8) y2 = y1 + e1 * y1 - (p6) fma.s1 f10=f14,f10,f10 - // set p6=0, p10=0 - cmp.ne.and p6,p10=r0,r0;; -} + // set FR_ROUNDCONST = 1.25*2^{-24} + setf.s FR_ROUNDCONST = GR_ROUNDCONST + // (7) q2 = q1+e1*q1 + (p6) fma.s1 FR_Q = FR_Q1, FR_E1, FR_Q1 + nop.i 0 +} +;; +{ .mfi + nop.m 0 + fmerge.s FR_B_SGN_A = f8, f9 + nop.i 0 +} +{ .mfi + nop.m 0 + // (8) y2 = y1 + e1 * y1 + (p6) fma.s1 FR_Y_INV = FR_E1, FR_Y_INV1, FR_Y_INV1 + // set p6 = 0, p10 = 0 + cmp.ne.and p6, p10 = r0, r0 +} +;; +// will compute integer quotient bits (24 bits per iteration) .align 32 -L(loop64): - {.mfi - nop.m 0 - // compare q2, 2^32 - fcmp.lt.unc.s1 p8,p7=f13,f15 - nop.i 0 -} - {.mfi - nop.m 0 - // will truncate quotient to integer, if exponent<32 (in advance) - fcvt.fx.trunc.s1 f11=f13 - nop.i 0;; -} - {.mfi - nop.m 0 - // if exponent>32, round quotient to single precision (perform in advance) - fma.s.s1 f13=f13,f1,f0 - nop.i 0;; -} - - - {.mfi - nop.m 0 - // set f12=sgn(a) - (p8) fmerge.s f12=f8,f1 - nop.i 0 -} - {.mfi - nop.m 0 - // normalize truncated quotient - (p8) fcvt.xf f13=f11 - nop.i 0;; -} - { .mfi - nop.m 0 - // calculate remainder (assuming f13=RZ(Q)) - (p7) fnma.s1 f14=f13,f7,f6 - nop.i 0 -} - {.mfi - nop.m 0 - // also if exponent>32, round quotient to single precision - // and subtract 1 ulp: q=q-q*(1.25*2^{-24}) - (p7) fnma.s.s1 f11=f13,f12,f13 - nop.i 0;; -} - - {.mfi - nop.m 0 - // (p8) calculate remainder (82-bit format) - (p8) fnma.s1 f11=f13,f7,f6 - nop.i 0 -} - {.mfi - nop.m 0 - // (p7) calculate remainder (assuming f11=RZ(Q)) - (p7) fnma.s1 f6=f11,f7,f6 - nop.i 0;; -} - - - {.mfi - nop.m 0 - // Final iteration (p8): is f6 the correct remainder (quotient was not overestimated) ? - (p8) fcmp.lt.unc.s1 p6,p10=f11,f0 - nop.i 0;; -} - {.mfi - nop.m 0 - // get new quotient estimation: a'*y2 - (p7) fma.s1 f13=f14,f10,f0 - nop.i 0 -} - {.mfb - nop.m 0 - // was f13=RZ(Q) ? (then new remainder f14>=0) - (p7) fcmp.lt.unc.s1 p7,p9=f14,f0 - nop.b 0;; -} - - -.pred.rel "mutex",p6,p10 - {.mfb - nop.m 0 - // add b to estimated remainder (to cover the case when the quotient was overestimated) - // also set correct sign by using f9=|b|*sgn(a), f12=sgn(a) - (p6) fma.s0 f8=f11,f12,f9 - nop.b 0 -} - {.mfb - nop.m 0 - // set correct sign of result before returning: f12=sgn(a) - (p10) fma.s0 f8=f11,f12,f0 - (p8) br.ret.sptk b0;; -} - {.mfi - nop.m 0 - // if f13!=RZ(Q), get alternative quotient estimation: a''*y2 - (p7) fma.s1 f13=f6,f10,f0 - nop.i 0 -} - {.mfb - nop.m 0 - // if f14 was RZ(Q), set remainder to f14 - (p9) mov f6=f14 - br.cond.sptk L(loop64);; -} - - - -L(FMOD_X_NAN_INF): - -// Y zero ? -{.mfi - nop.m 0 - fma.s1 f10=f9,f1,f0 - nop.i 0;; -} -{.mfi - nop.m 0 - fcmp.eq.unc.s1 p11,p0=f10,f0 - nop.i 0;; -} -{.mib - nop.m 0 - nop.i 0 - // if Y zero - (p11) br.cond.spnt L(FMOD_Y_ZERO);; -} - -// X infinity? Return QNAN indefinite -{ .mfi - // set p7 t0 0 - cmp.ne p7,p0=r0,r0 -(p0) fclass.m.unc p8,p9 = f8, 0x23 - nop.i 999;; +loop64: +{ .mfi + nop.m 0 + // compare q2, 2^32 + fcmp.lt.unc.s1 p8, p7 = FR_Q, FR_2P32 + nop.i 0 +} +{ .mfi + nop.m 0 + // will truncate quotient to integer, if exponent<32 (in advance) + fcvt.fx.trunc.s1 FR_QINT = FR_Q + nop.i 0 +} +;; + +{ .mfi + nop.m 0 + // if exponent>32 round quotient to single precision (perform in advance) + fma.s.s1 FR_QRND24 = FR_Q, f1, f0 + nop.i 0 +} +;; + +{ .mfi + nop.m 0 + // set FR_ROUNDCONST = sgn(a) + (p8) fmerge.s FR_ROUNDCONST = f8, f1 + nop.i 0 +} +{ .mfi + nop.m 0 + // normalize truncated quotient + (p8) fcvt.xf FR_QRND24 = FR_QINT + nop.i 0 +} +;; + +{ .mfi + nop.m 0 + // calculate remainder (assuming FR_QRND24 = RZ(Q)) + (p7) fnma.s1 FR_E1 = FR_QRND24, FR_ABS_B, FR_ABS_A + nop.i 0 +} +{ .mfi + nop.m 0 + // also if exponent>32, round quotient to single precision + // and subtract 1 ulp: q = q-q*(1.25*2^{-24}) + (p7) fnma.s.s1 FR_QINT_Z = FR_QRND24, FR_ROUNDCONST, FR_QRND24 + nop.i 0 +} +;; + +{ .mfi + nop.m 0 + // (p8) calculate remainder (82-bit format) + (p8) fnma.s1 FR_QREM = FR_QRND24, FR_ABS_B, FR_ABS_A + nop.i 0 +} +{ .mfi + nop.m 0 + // (p7) calculate remainder (assuming FR_QINT_Z = RZ(Q)) + (p7) fnma.s1 FR_ABS_A = FR_QINT_Z, FR_ABS_B, FR_ABS_A + nop.i 0 } -// Y NaN ? -{.mfi - nop.m 999 -(p8) fclass.m p9,p8=f9,0xc3 - nop.i 0;; +;; + +{ .mfi + nop.m 0 + // Final iteration (p8): is FR_ABS_A the correct remainder + // (quotient was not overestimated) ? + (p8) fcmp.lt.unc.s1 p6, p10 = FR_QREM, f0 + nop.i 0 +} +;; + +{ .mfi + nop.m 0 + // get new quotient estimation: a'*y2 + (p7) fma.s1 FR_Q = FR_E1, FR_Y_INV, f0 + nop.i 0 +} +{ .mfb + nop.m 0 + // was FR_Q = RZ(Q) ? (then new remainder FR_E1> = 0) + (p7) fcmp.lt.unc.s1 p7, p9 = FR_E1, f0 + nop.b 0 +} +;; + +.pred.rel "mutex", p6, p10 +{ .mfb + nop.m 0 + // add b to estimated remainder (to cover the case when the quotient was + // overestimated) + // also set correct sign by using + // FR_B_SGN_A = |b|*sgn(a), FR_ROUNDCONST = sgn(a) + (p6) fma.s0 f8 = FR_QREM, FR_ROUNDCONST, FR_B_SGN_A + nop.b 0 +} +{ .mfb + nop.m 0 + // set correct sign of result before returning: FR_ROUNDCONST = sgn(a) + (p10) fma.s0 f8 = FR_QREM, FR_ROUNDCONST, f0 + (p8) br.ret.sptk b0 +} +;; + +{ .mfi + nop.m 0 + // if f13! = RZ(Q), get alternative quotient estimation: a''*y2 + (p7) fma.s1 FR_Q = FR_ABS_A, FR_Y_INV, f0 + nop.i 0 +} +{ .mfb + nop.m 0 + // if FR_E1 was RZ(Q), set remainder to FR_E1 + (p9) fma.s1 FR_ABS_A = FR_E1, f1, f0 + br.cond.sptk loop64 +} +;; + +FMOD_A_NAN_INF: + +// b zero ? +{ .mfi + nop.m 0 + fclass.m p10, p0 = f8, 0xc3 // Test a = nan + nop.i 0 +} +{ .mfi + nop.m 0 + fma.s1 FR_NORM_B = f9, f1, f0 + nop.i 0 } -// Y not pseudo-zero ? (r29 holds significand) -{.mii - nop.m 999 -(p8) cmp.ne p7,p0=r29,r0 - nop.i 0;; +;; + +{ .mfi + nop.m 0 + fma.s0 f8 = f8, f1, f0 + nop.i 0 } -{.mfi - nop.m 999 -(p8) frcpa.s0 f8,p0 = f8,f8 - nop.i 0 -} { .mfi - nop.m 999 - // also set Denormal flag if necessary -(p7) fnma.s0 f9=f9,f1,f9 - nop.i 999 ;; + nop.m 0 + (p10) fclass.m p10, p0 = f9, 0x07 // Test x = nan, and y = zero + nop.i 0 } +;; { .mfb - nop.m 999 -(p8) fma.s0 f8=f8,f1,f0 - nop.b 999 ;; + nop.m 0 + fcmp.eq.unc.s1 p11, p0 = FR_NORM_B, f0 + (p10) br.ret.spnt b0 // Exit with result = a if a = nan and b = zero +} +;; + +{ .mib + nop.m 0 + nop.i 0 + // if Y zero + (p11) br.cond.spnt FMOD_B_ZERO +} +;; + +// a= infinity? Return QNAN indefinite +{ .mfi + // set p7 t0 0 + cmp.ne p7, p0 = r0, r0 + fclass.m.unc p8, p9 = f8, 0x23 + nop.i 0 +} +;; + +// b NaN ? +{ .mfi + nop.m 0 + (p8) fclass.m p9, p8 = f9, 0xc3 + nop.i 0 +} +;; + +// b not pseudo-zero ? (GR_SIG_B holds significand) +{ .mii + nop.m 0 + (p8) cmp.ne p7, p0 = GR_SIG_B, r0 + nop.i 0 +} +;; + +{ .mfi + nop.m 0 + (p8) frcpa.s0 f8, p0 = f8, f8 + nop.i 0 +} +{ .mfi + nop.m 0 + // also set Denormal flag if necessary + (p7) fnma.s0 f9 = f9, f1, f9 + nop.i 0 } +;; { .mfb - nop.m 999 -(p9) frcpa.s0 f8,p7=f8,f9 - br.ret.sptk b0 ;; + nop.m 0 + (p8) fma.s0 f8 = f8, f1, f0 + nop.b 0 } +;; +{ .mfb + nop.m 0 + (p9) frcpa.s0 f8, p7 = f8, f9 + br.ret.sptk b0 +} +;; -L(FMOD_Y_NAN_INF_ZERO): -// Y INF +FMOD_B_NAN_INF_ZERO: +// b INF { .mfi - nop.m 999 -(p0) fclass.m.unc p7,p0 = f9, 0x23 - nop.i 999 ;; + nop.m 0 + fclass.m.unc p7, p0 = f9, 0x23 + nop.i 0 } +;; { .mfb - nop.m 999 -(p7) fma f8=f8,f1,f0 -(p7) br.ret.spnt b0 ;; + nop.m 0 + (p7) fma.s0 f8 = f8, f1, f0 + (p7) br.ret.spnt b0 } +;; -// Y NAN? +// b NAN? { .mfi - nop.m 999 -(p0) fclass.m.unc p9,p10 = f9, 0xc3 - nop.i 999 ;; + nop.m 0 + fclass.m.unc p9, p10 = f9, 0xc3 + nop.i 0 } +;; + { .mfi - nop.m 999 -(p10) fclass.nm p9,p0 = f9, 0xff - nop.i 999 ;; + nop.m 0 + (p10) fclass.nm p9, p0 = f9, 0xff + nop.i 0 } +;; { .mfb - nop.m 999 -(p9) fma f8=f9,f1,f0 -(p9) br.ret.spnt b0 ;; + nop.m 0 + (p9) fma.s0 f8 = f9, f1, f0 + (p9) br.ret.spnt b0 } +;; -L(FMOD_Y_ZERO): +FMOD_B_ZERO: // Y zero? Must be zero at this point // because it is the only choice left. // Return QNAN indefinite -{.mfi - nop.m 0 - // set Invalid - frcpa f12,p0=f0,f0 - nop.i 0 -} -// X NAN? { .mfi - nop.m 999 -(p0) fclass.m.unc p9,p10 = f8, 0xc3 - nop.i 999 ;; + nop.m 0 + // set Invalid + frcpa.s0 FR_TMP, p0 = f0, f0 + nop.i 0 } +;; + +// a NAN? { .mfi - nop.m 999 -(p10) fclass.nm p9,p10 = f8, 0xff - nop.i 999 ;; + nop.m 0 + fclass.m.unc p9, p10 = f8, 0xc3 + nop.i 0 } +;; -{.mfi - nop.m 999 - (p9) frcpa f11,p7=f8,f0 - nop.i 0;; +{ .mfi + alloc GR_ARPFS = ar.pfs, 1, 4, 4, 0 + (p10) fclass.nm p9, p10 = f8, 0xff + nop.i 0 } - +;; { .mfi - nop.m 999 -(p10) frcpa f11,p7 = f9,f9 -(p0) mov GR_Parameter_TAG = 120 ;; + nop.m 0 + (p9) frcpa.s0 FR_TMP2, p7 = f8, f0 + nop.i 0 } +;; { .mfi - nop.m 999 -(p0) fmerge.s f10 = f8, f8 - nop.i 999 + nop.m 0 + (p10) frcpa.s0 FR_TMP2, p7 = f9, f9 + mov GR_Parameter_TAG = 120 } +;; +{ .mfi + nop.m 0 + fmerge.s FR_X = f8, f8 + nop.i 0 +} { .mfb - nop.m 999 -(p0) fma f8=f11,f1,f0 -(p0) br.sptk __libm_error_region;; + nop.m 0 + fma.s0 f8 = FR_TMP2, f1, f0 + br.sptk __libm_error_region } +;; -.endp fmodl -ASM_SIZE_DIRECTIVE(fmodl) -ASM_SIZE_DIRECTIVE(__ieee754_fmodl) +GLOBAL_IEEE754_END(fmodl) - -.proc __libm_error_region -__libm_error_region: +LOCAL_LIBM_ENTRY(__libm_error_region) .prologue { .mfi - add GR_Parameter_Y=-32,sp // Parameter 2 value - nop.f 0 -.save ar.pfs,GR_SAVE_PFS - mov GR_SAVE_PFS=ar.pfs // Save ar.pfs + add GR_Parameter_Y = -32, sp // Parameter 2 value + nop.f 0 +.save ar.pfs, GR_SAVE_PFS + mov GR_SAVE_PFS = ar.pfs // Save ar.pfs } { .mfi -.fframe 64 - add sp=-64,sp // Create new stack - nop.f 0 - mov GR_SAVE_GP=gp // Save gp -};; +.fframe 64 + add sp = -64, sp // Create new stack + nop.f 0 + mov GR_SAVE_GP = gp // Save gp +} +;; + { .mmi - stfe [GR_Parameter_Y] = FR_Y,16 // Save Parameter 2 on stack - add GR_Parameter_X = 16,sp // Parameter 1 address -.save b0, GR_SAVE_B0 - mov GR_SAVE_B0=b0 // Save b0 -};; + stfe [ GR_Parameter_Y ] = FR_Y, 16 // Save Parameter 2 on stack + add GR_Parameter_X = 16, sp // Parameter 1 address +.save b0, GR_SAVE_B0 + mov GR_SAVE_B0 = b0 // Save b0 +} +;; + .body { .mib - stfe [GR_Parameter_X] = FR_X // Store Parameter 1 on stack - add GR_Parameter_RESULT = 0,GR_Parameter_Y - nop.b 0 // Parameter 3 address + stfe [ GR_Parameter_X ] = FR_X // Store Parameter 1 on stack + add GR_Parameter_RESULT = 0, GR_Parameter_Y + nop.b 0 // Parameter 3 address } { .mib - stfe [GR_Parameter_Y] = FR_RESULT // Store Parameter 3 on stack - add GR_Parameter_Y = -16,GR_Parameter_Y - br.call.sptk b0=__libm_error_support# // Call error handling function -};; + stfe [ GR_Parameter_Y ] = FR_RESULT // Store Parameter 3 on stack + add GR_Parameter_Y = -16, GR_Parameter_Y + br.call.sptk b0 = __libm_error_support# // Call error handling function +} +;; + { .mmi - nop.m 0 - nop.m 0 - add GR_Parameter_RESULT = 48,sp -};; + nop.m 0 + nop.m 0 + add GR_Parameter_RESULT = 48, sp +} +;; + { .mmi - ldfe f8 = [GR_Parameter_RESULT] // Get return result off stack + ldfe f8 = [ GR_Parameter_RESULT ] // Get return result off stack .restore sp - add sp = 64,sp // Restore stack pointer - mov b0 = GR_SAVE_B0 // Restore return address -};; -{ .mib - mov gp = GR_SAVE_GP // Restore gp - mov ar.pfs = GR_SAVE_PFS // Restore ar.pfs - br.ret.sptk b0 // Return -};; - -.endp __libm_error_region -ASM_SIZE_DIRECTIVE(__libm_error_region) + add sp = 64, sp // Restore stack pointer + mov b0 = GR_SAVE_B0 // Restore return address +} +;; +{ .mib + mov gp = GR_SAVE_GP // Restore gp + mov ar.pfs = GR_SAVE_PFS // Restore ar.pfs + br.ret.sptk b0 // Return +} +;; +LOCAL_LIBM_END(__libm_error_region) -.type __libm_error_support#,@function +.type __libm_error_support#, @function .global __libm_error_support# |