| 1 | /* Copyright (C) 1996-2022 Free Software Foundation, Inc. |
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| 2 | This file is part of the GNU C Library. |
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| 3 | |
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| 4 | The GNU C Library is free software; you can redistribute it and/or |
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| 5 | modify it under the terms of the GNU Lesser General Public |
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| 6 | License as published by the Free Software Foundation; either |
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| 7 | version 2.1 of the License, or (at your option) any later version. |
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| 8 | |
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| 9 | The GNU C Library is distributed in the hope that it will be useful, |
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| 10 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 12 | Lesser General Public License for more details. |
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| 13 | |
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| 14 | You should have received a copy of the GNU Lesser General Public |
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| 15 | License along with the GNU C Library. If not, see |
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| 16 | <https://www.gnu.org/licenses/>. */ |
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| 17 | |
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| 18 | #include "div_libc.h" |
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| 19 | |
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| 20 | #undef FRAME |
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| 21 | #ifdef __alpha_fix__ |
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| 22 | #define FRAME 0 |
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| 23 | #else |
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| 24 | #define FRAME 16 |
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| 25 | #endif |
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| 26 | |
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| 27 | .set noat |
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| 28 | |
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| 29 | .align 4 |
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| 30 | .globl div |
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| 31 | .ent div |
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| 32 | div: |
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| 33 | .frame sp, FRAME, ra |
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| 34 | #if FRAME > 0 |
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| 35 | lda sp, -FRAME(sp) |
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| 36 | #endif |
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| 37 | #ifdef PROF |
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| 38 | .set macro |
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| 39 | ldgp gp, 0(pv) |
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| 40 | lda AT, _mcount |
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| 41 | jsr AT, (AT), _mcount |
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| 42 | .set nomacro |
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| 43 | .prologue 1 |
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| 44 | #else |
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| 45 | .prologue 0 |
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| 46 | #endif |
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| 47 | |
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| 48 | beq $18, $divbyzero |
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| 49 | excb |
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| 50 | mf_fpcr $f10 |
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| 51 | |
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| 52 | _ITOFT2 $17, $f0, 0, $18, $f1, 8 |
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| 53 | |
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| 54 | cvtqt $f0, $f0 |
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| 55 | cvtqt $f1, $f1 |
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| 56 | divt/c $f0, $f1, $f0 |
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| 57 | cvttq/c $f0, $f0 |
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| 58 | excb |
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| 59 | mt_fpcr $f10 |
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| 60 | _FTOIT $f0, $0, 0 |
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| 61 | |
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| 62 | mull $0, $18, $1 |
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| 63 | subl $17, $1, $1 |
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| 64 | |
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| 65 | stl $0, 0(a0) |
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| 66 | stl $1, 4(a0) |
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| 67 | mov a0, v0 |
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| 68 | |
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| 69 | #if FRAME > 0 |
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| 70 | lda sp, FRAME(sp) |
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| 71 | #endif |
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| 72 | ret |
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| 73 | |
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| 74 | $divbyzero: |
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| 75 | mov a0, v0 |
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| 76 | lda a0, GEN_INTDIV |
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| 77 | call_pal PAL_gentrap |
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| 78 | stl zero, 0(v0) |
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| 79 | stl zero, 4(v0) |
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| 80 | |
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| 81 | #if FRAME > 0 |
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| 82 | lda sp, FRAME(sp) |
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| 83 | #endif |
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| 84 | ret |
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| 85 | |
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| 86 | .end div |
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| 87 | |
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