| .file "atanf.s" |
| |
| |
| // Copyright (c) 2000 - 2003, Intel Corporation |
| // All rights reserved. |
| // |
| // 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 |
| // met: |
| // |
| // * Redistributions of source code must retain the above copyright |
| // notice, this list of conditions and the following disclaimer. |
| // |
| // * Redistributions in binary form must reproduce the above copyright |
| // notice, this list of conditions and the following disclaimer in the |
| // documentation and/or other materials provided with the distribution. |
| // |
| // * 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 |
| // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL INTEL OR ITS |
| // CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
| // EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| // PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
| // PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY |
| // OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY OR TORT (INCLUDING |
| // NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
| // SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| // |
| // Intel Corporation is the author of this code, and requests that all |
| // problem reports or change requests be submitted to it directly at |
| // http://www.intel.com/software/products/opensource/libraries/num.htm. |
| |
| |
| // History |
| //============================================================== |
| // 02/20/00 Initial version |
| // 08/17/00 Changed predicate register macro-usage to direct predicate |
| // names due to an assembler bug. |
| // 02/06/02 Corrected .section statement |
| // 05/20/02 Cleaned up namespace and sf0 syntax |
| // 02/06/03 Reordered header: .section, .global, .proc, .align; |
| // added missing bundling |
| |
| // |
| // Assembly macros |
| //============================================================== |
| |
| // integer registers used |
| EXP_Addr1 = r33 |
| EXP_Addr2 = r34 |
| |
| // floating point registers used |
| atanf_coeff_R4 = f32 |
| atanf_coeff_R5 = f33 |
| atanf_coeff_R1 = f34 |
| atanf_coeff_R2 = f35 |
| |
| atanf_coeff_R3 = f36 |
| atanf_coeff_P1 = f37 |
| atanf_coeff_Q6 = f38 |
| atanf_coeff_Q7 = f39 |
| atanf_coeff_Q8 = f40 |
| |
| atanf_coeff_Q9 = f41 |
| atanf_coeff_Q4 = f42 |
| atanf_coeff_Q5 = f43 |
| atanf_coeff_Q2 = f44 |
| atanf_coeff_Q3 = f45 |
| |
| atanf_coeff_P5 = f46 |
| atanf_coeff_P6 = f47 |
| atanf_coeff_Q0 = f48 |
| atanf_coeff_Q1 = f49 |
| atanf_coeff_P7 = f50 |
| |
| atanf_coeff_P8 = f51 |
| atanf_coeff_P3 = f52 |
| atanf_coeff_P4 = f53 |
| atanf_coeff_P9 = f54 |
| atanf_coeff_P10 = f55 |
| |
| atanf_coeff_P2 = f56 |
| atanf_piby2 = f57 |
| atanf_z = f58 |
| atanf_b = f59 |
| atanf_zsq = f60 |
| |
| atanf_sgn_x = f61 |
| atanf_sgnx_piby2 = f62 |
| atanf_abs_x = f63 |
| atanf_t = f64 |
| atanf_xcub = f65 |
| |
| atanf_tsq = f66 |
| atanf_t4 = f67 |
| atanf_x5 = f68 |
| atanf_x6 = f69 |
| atanf_x11 = f70 |
| |
| atanf_poly_p1 = f71 |
| atanf_poly_p2 = f72 |
| atanf_poly_p3 = f73 |
| atanf_poly_p4 = f74 |
| atanf_poly_p5 = f75 |
| |
| atanf_poly_q1 = f76 |
| atanf_poly_q2 = f77 |
| atanf_poly_q3 = f78 |
| atanf_poly_q4 = f79 |
| atanf_poly_q5 = f80 |
| |
| atanf_poly_q = f81 |
| atanf_poly_r1 = f81 |
| atanf_poly_r2 = f82 |
| atanf_poly_r3 = f83 |
| atanf_bsq = f84 |
| atanf_z4 = f85 |
| |
| atanf_z5 = f86 |
| atanf_z8 = f87 |
| atanf_z13 = f88 |
| atanf_poly_r2 = f89 |
| atanf_poly_r1 = f90 |
| |
| atanf_z8_bsq = f91 |
| atanf_poly_r = f92 |
| atanf_z21_poly_r = f93 |
| atanf_answer = f8 |
| |
| |
| // predicate registers used |
| //atanf_pred_LE1 = p6 |
| //atanf_pred_GT1 = p7 |
| |
| |
| RODATA |
| |
| .align 16 |
| |
| LOCAL_OBJECT_START(atanf_coeff_1_table) |
| data8 0x40c4c241be751ff2 // r4 |
| data8 0x40e9f300c2f3070b // r5 |
| data8 0x409babffef772075 // r3 |
| data8 0xbfd5555512191621 // p1 |
| data8 0x3fc9997e7afbff4e // p2 = q8 |
| data8 0xbfd5555512191621 // p1 = q9 |
| data8 0x3f97105b4160f86b // p8 = q2 |
| data8 0xbfa6e10ba401393f // p7 = q3 |
| data8 0x3f522e5d33bc9baa // p10 = q0 |
| data8 0xbf7deaadaa336451 // p9 = q1 |
| data8 0xbfc2473c5145ee38 // p3 |
| data8 0x3fbc4f512b1865f5 // p4 |
| data8 0x3fc9997e7afbff4e // p2 |
| data8 0x3ff921fb54442d18 // pi/2 |
| LOCAL_OBJECT_END(atanf_coeff_1_table) |
| |
| |
| |
| LOCAL_OBJECT_START(atanf_coeff_2_table) |
| data8 0x4035000000004284 // r1 |
| data8 0x406cdffff336a59b // r2 |
| data8 0x3fbc4f512b1865f5 // p4 = q6 |
| data8 0xbfc2473c5145ee38 // p3 = q7 |
| data8 0x3fb142a73d7c54e3 // p6 = q4 |
| data8 0xbfb68eed6a8cfa32 // p5 = q5 |
| data8 0xbfb68eed6a8cfa32 // p5 |
| data8 0x3fb142a73d7c54e3 // p6 |
| data8 0xbfa6e10ba401393f // p7 |
| data8 0x3f97105b4160f86b // p8 |
| data8 0xbf7deaadaa336451 // p9 |
| data8 0x3f522e5d33bc9baa // p10 |
| LOCAL_OBJECT_END(atanf_coeff_2_table) |
| |
| |
| |
| .section .text |
| GLOBAL_LIBM_ENTRY(atanf) |
| |
| { .mfi |
| alloc r32 = ar.pfs,1,2,0,0 |
| frcpa.s1 atanf_z,p0 = f1,f8 |
| addl EXP_Addr2 = @ltoff(atanf_coeff_2_table),gp |
| } |
| { .mfi |
| addl EXP_Addr1 = @ltoff(atanf_coeff_1_table),gp |
| fma.s1 atanf_t = f8,f8,f0 |
| nop.i 999;; |
| } |
| |
| |
| { .mfi |
| nop.m 999 |
| fmerge.s atanf_sgn_x = f8,f1 |
| nop.i 999;; |
| } |
| |
| { .mfi |
| ld8 EXP_Addr1 = [EXP_Addr1] |
| fmerge.s atanf_abs_x = f1,f8 |
| nop.i 999 |
| } |
| { .mfi |
| ld8 EXP_Addr2 = [EXP_Addr2] |
| nop.f 999 |
| nop.i 999;; |
| } |
| |
| |
| { .mfi |
| nop.m 999 |
| fclass.m p8,p0 = f8,0x7 // @zero |
| nop.i 999;; |
| } |
| |
| { .mfi |
| nop.m 999 |
| fcmp.eq.unc.s0 p9,p10 = f8,f1 |
| nop.i 999;; |
| } |
| |
| { .mfi |
| ldfpd atanf_coeff_R4,atanf_coeff_R5 = [EXP_Addr1],16 |
| fnma.s1 atanf_b = f8,atanf_z,f1 |
| nop.i 999 |
| } |
| { .mfi |
| ldfpd atanf_coeff_R1,atanf_coeff_R2 = [EXP_Addr2],16 |
| fma.s1 atanf_zsq = atanf_z,atanf_z,f0 |
| nop.i 999;; |
| } |
| |
| |
| { .mfi |
| ldfpd atanf_coeff_R3,atanf_coeff_P1 = [EXP_Addr1],16 |
| fma.s1 atanf_xcub = f8,atanf_t,f0 |
| nop.i 999 |
| } |
| { .mfi |
| ldfpd atanf_coeff_Q6,atanf_coeff_Q7 = [EXP_Addr2],16 |
| fma.s1 atanf_tsq = atanf_t,atanf_t,f0 |
| nop.i 999;; |
| } |
| |
| |
| { .mfi |
| ldfpd atanf_coeff_Q8,atanf_coeff_Q9 = [EXP_Addr1],16 |
| // fcmp.le.s1 atanf_pred_LE1,atanf_pred_GT1 = atanf_abs_x,f1 |
| fcmp.le.s1 p6,p7 = atanf_abs_x,f1 |
| nop.i 999 |
| } |
| { .mfi |
| ldfpd atanf_coeff_Q4,atanf_coeff_Q5 = [EXP_Addr2],16 |
| nop.f 999 |
| nop.i 999;; |
| } |
| |
| |
| { .mfi |
| ldfpd atanf_coeff_Q2,atanf_coeff_Q3 = [EXP_Addr1],16 |
| fclass.m p8,p0 = f8,0xe7 // @inf|@qnan|@snan|@zero |
| nop.i 999 |
| } |
| { .mfi |
| ldfpd atanf_coeff_P5,atanf_coeff_P6 = [EXP_Addr2],16 |
| nop.f 999 |
| nop.i 999;; |
| } |
| |
| |
| { .mfi |
| ldfpd atanf_coeff_Q0,atanf_coeff_Q1 = [EXP_Addr1],16 |
| nop.f 999 |
| nop.i 999 |
| } |
| { .mfi |
| ldfpd atanf_coeff_P7,atanf_coeff_P8 = [EXP_Addr2],16 |
| nop.f 999 |
| nop.i 999;; |
| } |
| |
| |
| { .mfi |
| ldfpd atanf_coeff_P3,atanf_coeff_P4 = [EXP_Addr1],16 |
| fma.s1 atanf_bsq = atanf_b,atanf_b,f0 |
| nop.i 999 |
| } |
| { .mfi |
| ldfpd atanf_coeff_P9,atanf_coeff_P10 = [EXP_Addr2] |
| fma.s1 atanf_z4 = atanf_zsq,atanf_zsq,f0 |
| nop.i 999;; |
| } |
| |
| |
| { .mfi |
| ldfpd atanf_coeff_P2,atanf_piby2 = [EXP_Addr1] |
| fma.s1 atanf_x6 = atanf_t,atanf_tsq,f0 |
| nop.i 999 |
| } |
| { .mfi |
| nop.m 999 |
| fma.s1 atanf_t4 = atanf_tsq,atanf_tsq,f0 |
| nop.i 999;; |
| } |
| |
| |
| { .mfb |
| nop.m 999 |
| fma.s1 atanf_x5 = atanf_t,atanf_xcub,f0 |
| (p8) br.cond.spnt ATANF_X_INF_NAN_ZERO |
| } |
| ;; |
| |
| { .mfi |
| nop.m 999 |
| fma.s1 atanf_poly_r1 = atanf_b,atanf_coeff_R1,f1 |
| nop.i 999 |
| } |
| { .mfi |
| nop.m 999 |
| fma.s1 atanf_poly_r3 = atanf_b,atanf_coeff_R5,atanf_coeff_R4 |
| nop.i 999;; |
| } |
| |
| |
| { .mfi |
| nop.m 999 |
| fma.s1 atanf_poly_r2 = atanf_b,atanf_coeff_R3,atanf_coeff_R2 |
| nop.i 999 |
| } |
| { .mfi |
| nop.m 999 |
| fma.s1 atanf_z8 = atanf_z4,atanf_z4,f0 |
| nop.i 999;; |
| } |
| |
| |
| { .mfi |
| nop.m 999 |
| fma.s1 atanf_poly_q2 = atanf_t,atanf_coeff_Q5,atanf_coeff_Q4 |
| nop.i 999 |
| } |
| { .mfi |
| nop.m 999 |
| fma.s1 atanf_poly_q3 = atanf_t,atanf_coeff_Q7,atanf_coeff_Q6 |
| nop.i 999;; |
| } |
| |
| |
| { .mfi |
| nop.m 999 |
| fma.s1 atanf_z5 = atanf_z,atanf_z4,f0 |
| nop.i 999 |
| } |
| { .mfi |
| nop.m 999 |
| fma.s1 atanf_poly_q1 = atanf_t,atanf_coeff_Q9,atanf_coeff_Q8 |
| nop.i 999;; |
| } |
| |
| |
| { .mfi |
| nop.m 999 |
| fma.s1 atanf_poly_q4 = atanf_t,atanf_coeff_Q1,atanf_coeff_Q0 |
| nop.i 999 |
| } |
| { .mfi |
| nop.m 999 |
| fma.s1 atanf_poly_q5 = atanf_t,atanf_coeff_Q3,atanf_coeff_Q2 |
| nop.i 999;; |
| } |
| |
| |
| { .mfi |
| nop.m 999 |
| fma.s1 atanf_poly_p4 = f8,atanf_coeff_P1,f0 |
| nop.i 999 |
| } |
| { .mfi |
| nop.m 999 |
| fma.s1 atanf_poly_p5 = atanf_t,atanf_coeff_P4,atanf_coeff_P3 |
| nop.i 999;; |
| } |
| |
| |
| { .mfi |
| nop.m 999 |
| fma.s1 atanf_poly_r1 = atanf_z8,atanf_poly_r1,f0 |
| nop.i 999 |
| } |
| { .mfi |
| nop.m 999 |
| fma.s1 atanf_z8_bsq = atanf_z8,atanf_bsq,f0 |
| nop.i 999;; |
| } |
| |
| |
| { .mfi |
| nop.m 999 |
| fma.s1 atanf_poly_q2 = atanf_tsq,atanf_poly_q3,atanf_poly_q2 |
| nop.i 999 |
| } |
| { .mfi |
| nop.m 999 |
| fma.s1 atanf_poly_r2 = atanf_bsq,atanf_poly_r3,atanf_poly_r2 |
| nop.i 999;; |
| } |
| |
| |
| { .mfi |
| nop.m 999 |
| fma.s1 atanf_poly_p2 = atanf_t,atanf_coeff_P8,atanf_coeff_P7 |
| nop.i 999 |
| } |
| { .mfi |
| nop.m 999 |
| fma.s1 atanf_poly_q1 = atanf_poly_q1,f1,atanf_tsq |
| nop.i 999;; |
| } |
| |
| |
| { .mfi |
| nop.m 999 |
| fma.s1 atanf_z13 = atanf_z5,atanf_z8,f0 |
| nop.i 999 |
| } |
| { .mfi |
| nop.m 999 |
| fma.s1 atanf_poly_p1 = atanf_t,atanf_coeff_P10,atanf_coeff_P9 |
| nop.i 999;; |
| } |
| |
| |
| { .mfi |
| nop.m 999 |
| fma.s1 atanf_poly_p4 = atanf_t,atanf_poly_p4,f8 |
| nop.i 999 |
| } |
| { .mfi |
| nop.m 999 |
| fma.s1 atanf_poly_q4 = atanf_tsq,atanf_poly_q5,atanf_poly_q4 |
| nop.i 999;; |
| } |
| |
| |
| { .mfi |
| nop.m 999 |
| fma.s1 atanf_poly_p3 = atanf_t,atanf_coeff_P6,atanf_coeff_P5 |
| nop.i 999 |
| } |
| { .mfi |
| nop.m 999 |
| fma.s1 atanf_poly_p5 = atanf_t,atanf_poly_p5,atanf_coeff_P2 |
| nop.i 999;; |
| } |
| |
| |
| { .mfi |
| nop.m 999 |
| fma.s1 atanf_x11 = atanf_x5,atanf_x6,f0 |
| nop.i 999 |
| } |
| { .mfi |
| nop.m 999 |
| fma.s1 atanf_poly_r = atanf_z8_bsq,atanf_poly_r2,atanf_poly_r1 |
| nop.i 999;; |
| } |
| |
| |
| { .mfi |
| nop.m 999 |
| fma.s0 atanf_sgnx_piby2 = atanf_sgn_x,atanf_piby2,f0 |
| nop.i 999 |
| } |
| { .mfi |
| nop.m 999 |
| fma.s1 atanf_poly_q2 = atanf_t4,atanf_poly_q1,atanf_poly_q2 |
| nop.i 999;; |
| } |
| |
| |
| { .mfi |
| nop.m 999 |
| fma.s1 atanf_poly_p1 = atanf_tsq,atanf_poly_p1,atanf_poly_p2 |
| nop.i 999;; |
| } |
| |
| { .mfi |
| nop.m 999 |
| fma.s1 atanf_poly_p4 = atanf_x5,atanf_poly_p5,atanf_poly_p4 |
| nop.i 999;; |
| } |
| |
| { .mfi |
| nop.m 999 |
| fma.s1 atanf_z21_poly_r = atanf_z13,atanf_poly_r,f0 |
| nop.i 999;; |
| } |
| |
| { .mfi |
| nop.m 999 |
| fma.s1 atanf_poly_q = atanf_t4,atanf_poly_q2,atanf_poly_q4 |
| nop.i 999;; |
| } |
| |
| { .mfi |
| nop.m 999 |
| fma.s1 atanf_poly_p1 = atanf_tsq,atanf_poly_p1,atanf_poly_p3 |
| nop.i 999;; |
| } |
| |
| { .mfi |
| nop.m 999 |
| //(atanf_pred_GT1) fnma.s atanf_answer = atanf_poly_q,atanf_z21_poly_r,atanf_sgnx_piby2 |
| (p7) fnma.s.s0 atanf_answer = atanf_poly_q,atanf_z21_poly_r,atanf_sgnx_piby2 |
| nop.i 999;; |
| } |
| |
| { .mfb |
| nop.m 999 |
| //(atanf_pred_LE1) fma.s atanf_answer = atanf_x11,atanf_poly_p1,atanf_poly_p4 |
| (p6) fma.s.s0 atanf_answer = atanf_x11,atanf_poly_p1,atanf_poly_p4 |
| br.ret.sptk b0 |
| } |
| |
| |
| |
| ATANF_X_INF_NAN_ZERO: |
| |
| { .mfi |
| nop.m 0 |
| fclass.m p8,p9 = f8,0x23 // @inf |
| nop.i 0 |
| } |
| ;; |
| { .mfi |
| nop.m 0 |
| (p8) fmerge.s f8 = f8, atanf_piby2 |
| nop.i 0 |
| } |
| ;; |
| { .mfb |
| nop.m 0 |
| fnorm.s.s0 f8 = f8 |
| br.ret.sptk b0 |
| } |
| ;; |
| |
| GLOBAL_LIBM_END(atanf) |
| |
