audk/ArmPkg/Library/ArmSoftFloatLib/Arm/__aeabi_cdcmp.asm

42 lines
1.1 KiB
NASM

//------------------------------------------------------------------------------
//
// Copyright (c) 2015, Linaro Limited. All rights reserved.
//
// SPDX-License-Identifier: BSD-2-Clause-Patent
//
//------------------------------------------------------------------------------
EXPORT __aeabi_cdrcmple
EXPORT __aeabi_cdcmpeq
EXPORT __aeabi_cdcmple
IMPORT _softfloat_float64_eq
IMPORT _softfloat_float64_lt
AREA __aeabi_cdcmp, CODE, READONLY
PRESERVE8
__aeabi_cdrcmple
MOV IP, R0
MOV R0, R2
MOV R2, IP
MOV IP, R1
MOV R1, R3
MOV R3, IP
__aeabi_cdcmpeq
__aeabi_cdcmple
PUSH {R0 - R3, IP, LR}
BL _softfloat_float64_eq
SUB IP, R0, #1
CMP IP, #0 // sets C and Z if R0 == 1
POPEQ {R0 - R3, IP, PC}
LDM SP, {R0 - R3}
BL _softfloat_float64_lt
SUB IP, R0, #1
CMP IP, #1 // sets C if R0 == 0
POP {R0 - R3, IP, PC}
END