mirror of
https://gcc.gnu.org/git/gcc.git
synced 2024-11-24 03:14:08 +08:00
77 lines
2.0 KiB
ArmAsm
77 lines
2.0 KiB
ArmAsm
; Copyright (C) 2017-2023 Free Software Foundation, Inc.
|
|
; Contributed by Sebastian Perta.
|
|
;
|
|
; This file is free software; you can redistribute it and/or modify it
|
|
; under the terms of the GNU General Public License as published by the
|
|
; Free Software Foundation; either version 3, or (at your option) any
|
|
; later version.
|
|
;
|
|
; This file is distributed in the hope that it will be useful, but
|
|
; WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
; General Public License for more details.
|
|
;
|
|
; Under Section 7 of GPL version 3, you are granted additional
|
|
; permissions described in the GCC Runtime Library Exception, version
|
|
; 3.1, as published by the Free Software Foundation.
|
|
;
|
|
; You should have received a copy of the GNU General Public License and
|
|
; a copy of the GCC Runtime Library Exception along with this program;
|
|
; see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
|
|
; <http://www.gnu.org/licenses/>.
|
|
|
|
|
|
#include "vregs.h"
|
|
|
|
.text
|
|
|
|
START_FUNC ___smindi3
|
|
|
|
; copy first argument/operand to the output registers
|
|
movw ax, [sp+4]
|
|
movw r8, ax
|
|
movw ax, [sp+6]
|
|
movw r10, ax
|
|
movw ax, [sp+8]
|
|
movw r12, ax
|
|
movw ax, [sp+10]
|
|
movw r14, ax
|
|
|
|
; use 16-bit compares from the most significant words downto the least significant ones
|
|
movw ax, [sp+18]
|
|
cmpw ax, r14
|
|
xor1 CY, a.7 ; first compare accounts for the
|
|
xor1 CY, r15.7 ; sign bits of the two operands
|
|
bc $.L1
|
|
bnz $.L2
|
|
|
|
movw ax, [sp+16]
|
|
cmpw ax, r12
|
|
bc $.L1
|
|
bnz $.L2
|
|
|
|
movw ax, [sp+14]
|
|
cmpw ax, r10
|
|
bc $.L1
|
|
bnz $.L2
|
|
|
|
movw ax, [sp+12]
|
|
cmpw ax, r8
|
|
bc $.L1
|
|
ret
|
|
|
|
.L1:
|
|
; copy second argument/operand to the output registers
|
|
movw ax, [sp+12]
|
|
movw r8, ax
|
|
movw ax, [sp+14]
|
|
movw r10, ax
|
|
movw ax, [sp+16]
|
|
movw r12, ax
|
|
movw ax, [sp+18]
|
|
movw r14, ax
|
|
.L2:
|
|
ret
|
|
|
|
END_FUNC ___smindi3
|