X-Git-Url: https://git.proxmox.com/?p=mirror_edk2.git;a=blobdiff_plain;f=ArmPkg%2FLibrary%2FCompilerIntrinsicsLib%2FArm%2Fdiv.asm;h=13f701358ec604745b49478ab02ff81d720aa840;hp=e38105dd6305deaa927f957493e8279df3239a26;hb=1e57a46299244793beb27e74be171d1540606999;hpb=5767f22fca7c337cdc113e14b411c1fd0ea7bd53
diff --git a/ArmPkg/Library/CompilerIntrinsicsLib/Arm/div.asm b/ArmPkg/Library/CompilerIntrinsicsLib/Arm/div.asm
index e38105dd63..13f701358e 100644
--- a/ArmPkg/Library/CompilerIntrinsicsLib/Arm/div.asm
+++ b/ArmPkg/Library/CompilerIntrinsicsLib/Arm/div.asm
@@ -1,155 +1,155 @@
-//------------------------------------------------------------------------------
-//
-// Copyright (c) 2008 - 2009, Apple Inc. All rights reserved.
-//
-// This program and the accompanying materials
-// are licensed and made available under the terms and conditions of the BSD License
-// which accompanies this distribution. The full text of the license may be found at
-// http://opensource.org/licenses/bsd-license.php
-//
-// THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
-// WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
-//
-//------------------------------------------------------------------------------
-
-
- EXPORT __aeabi_uidiv
- EXPORT __aeabi_uidivmod
- EXPORT __aeabi_idiv
- EXPORT __aeabi_idivmod
-
- AREA Math, CODE, READONLY
-
-;
-;UINT32
-;EFIAPI
-;__aeabi_uidivmode (
-; IN UINT32 Dividen
-; IN UINT32 Divisor
-; );
-;
-
-__aeabi_uidiv
-__aeabi_uidivmod
- RSBS r12, r1, r0, LSR #4
- MOV r2, #0
- BCC __arm_div4
- RSBS r12, r1, r0, LSR #8
- BCC __arm_div8
- MOV r3, #0
- B __arm_div_large
-
-;
-;INT32
-;EFIAPI
-;__aeabi_idivmode (
-; IN INT32 Dividen
-; IN INT32 Divisor
-; );
-;
-__aeabi_idiv
-__aeabi_idivmod
- ORRS r12, r0, r1
- BMI __arm_div_negative
- RSBS r12, r1, r0, LSR #1
- MOV r2, #0
- BCC __arm_div1
- RSBS r12, r1, r0, LSR #4
- BCC __arm_div4
- RSBS r12, r1, r0, LSR #8
- BCC __arm_div8
- MOV r3, #0
- B __arm_div_large
-__arm_div8
- RSBS r12, r1, r0, LSR #7
- SUBCS r0, r0, r1, LSL #7
- ADC r2, r2, r2
- RSBS r12, r1, r0,LSR #6
- SUBCS r0, r0, r1, LSL #6
- ADC r2, r2, r2
- RSBS r12, r1, r0, LSR #5
- SUBCS r0, r0, r1, LSL #5
- ADC r2, r2, r2
- RSBS r12, r1, r0, LSR #4
- SUBCS r0, r0, r1, LSL #4
- ADC r2, r2, r2
-__arm_div4
- RSBS r12, r1, r0, LSR #3
- SUBCS r0, r0, r1, LSL #3
- ADC r2, r2, r2
- RSBS r12, r1, r0, LSR #2
- SUBCS r0, r0, r1, LSL #2
- ADCS r2, r2, r2
- RSBS r12, r1, r0, LSR #1
- SUBCS r0, r0, r1, LSL #1
- ADC r2, r2, r2
-__arm_div1
- SUBS r1, r0, r1
- MOVCC r1, r0
- ADC r0, r2, r2
- BX r14
-__arm_div_negative
- ANDS r2, r1, #0x80000000
- RSBMI r1, r1, #0
- EORS r3, r2, r0, ASR #32
- RSBCS r0, r0, #0
- RSBS r12, r1, r0, LSR #4
- BCC label1
- RSBS r12, r1, r0, LSR #8
- BCC label2
-__arm_div_large
- LSL r1, r1, #6
- RSBS r12, r1, r0, LSR #8
- ORR r2, r2, #0xfc000000
- BCC label2
- LSL r1, r1, #6
- RSBS r12, r1, r0, LSR #8
- ORR r2, r2, #0x3f00000
- BCC label2
- LSL r1, r1, #6
- RSBS r12, r1, r0, LSR #8
- ORR r2, r2, #0xfc000
- ORRCS r2, r2, #0x3f00
- LSLCS r1, r1, #6
- RSBS r12, r1, #0
- BCS __aeabi_idiv0
-label3
- LSRCS r1, r1, #6
-label2
- RSBS r12, r1, r0, LSR #7
- SUBCS r0, r0, r1, LSL #7
- ADC r2, r2, r2
- RSBS r12, r1, r0, LSR #6
- SUBCS r0, r0, r1, LSL #6
- ADC r2, r2, r2
- RSBS r12, r1, r0, LSR #5
- SUBCS r0, r0, r1, LSL #5
- ADC r2, r2, r2
- RSBS r12, r1, r0, LSR #4
- SUBCS r0, r0, r1, LSL #4
- ADC r2, r2, r2
-label1
- RSBS r12, r1, r0, LSR #3
- SUBCS r0, r0, r1, LSL #3
- ADC r2, r2, r2
- RSBS r12, r1, r0, LSR #2
- SUBCS r0, r0, r1, LSL #2
- ADCS r2, r2, r2
- BCS label3
- RSBS r12, r1, r0, LSR #1
- SUBCS r0, r0, r1, LSL #1
- ADC r2, r2, r2
- SUBS r1, r0, r1
- MOVCC r1, r0
- ADC r0, r2, r2
- ASRS r3, r3, #31
- RSBMI r0, r0, #0
- RSBCS r1, r1, #0
- BX r14
-
- ; What to do about division by zero? For now, just return.
-__aeabi_idiv0
- BX r14
-
- END
-
+//------------------------------------------------------------------------------
+//
+// Copyright (c) 2008 - 2009, Apple Inc. All rights reserved.
+//
+// This program and the accompanying materials
+// are licensed and made available under the terms and conditions of the BSD License
+// which accompanies this distribution. The full text of the license may be found at
+// http://opensource.org/licenses/bsd-license.php
+//
+// THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+// WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+//
+//------------------------------------------------------------------------------
+
+
+ EXPORT __aeabi_uidiv
+ EXPORT __aeabi_uidivmod
+ EXPORT __aeabi_idiv
+ EXPORT __aeabi_idivmod
+
+ AREA Math, CODE, READONLY
+
+;
+;UINT32
+;EFIAPI
+;__aeabi_uidivmode (
+; IN UINT32 Dividen
+; IN UINT32 Divisor
+; );
+;
+
+__aeabi_uidiv
+__aeabi_uidivmod
+ RSBS r12, r1, r0, LSR #4
+ MOV r2, #0
+ BCC __arm_div4
+ RSBS r12, r1, r0, LSR #8
+ BCC __arm_div8
+ MOV r3, #0
+ B __arm_div_large
+
+;
+;INT32
+;EFIAPI
+;__aeabi_idivmode (
+; IN INT32 Dividen
+; IN INT32 Divisor
+; );
+;
+__aeabi_idiv
+__aeabi_idivmod
+ ORRS r12, r0, r1
+ BMI __arm_div_negative
+ RSBS r12, r1, r0, LSR #1
+ MOV r2, #0
+ BCC __arm_div1
+ RSBS r12, r1, r0, LSR #4
+ BCC __arm_div4
+ RSBS r12, r1, r0, LSR #8
+ BCC __arm_div8
+ MOV r3, #0
+ B __arm_div_large
+__arm_div8
+ RSBS r12, r1, r0, LSR #7
+ SUBCS r0, r0, r1, LSL #7
+ ADC r2, r2, r2
+ RSBS r12, r1, r0,LSR #6
+ SUBCS r0, r0, r1, LSL #6
+ ADC r2, r2, r2
+ RSBS r12, r1, r0, LSR #5
+ SUBCS r0, r0, r1, LSL #5
+ ADC r2, r2, r2
+ RSBS r12, r1, r0, LSR #4
+ SUBCS r0, r0, r1, LSL #4
+ ADC r2, r2, r2
+__arm_div4
+ RSBS r12, r1, r0, LSR #3
+ SUBCS r0, r0, r1, LSL #3
+ ADC r2, r2, r2
+ RSBS r12, r1, r0, LSR #2
+ SUBCS r0, r0, r1, LSL #2
+ ADCS r2, r2, r2
+ RSBS r12, r1, r0, LSR #1
+ SUBCS r0, r0, r1, LSL #1
+ ADC r2, r2, r2
+__arm_div1
+ SUBS r1, r0, r1
+ MOVCC r1, r0
+ ADC r0, r2, r2
+ BX r14
+__arm_div_negative
+ ANDS r2, r1, #0x80000000
+ RSBMI r1, r1, #0
+ EORS r3, r2, r0, ASR #32
+ RSBCS r0, r0, #0
+ RSBS r12, r1, r0, LSR #4
+ BCC label1
+ RSBS r12, r1, r0, LSR #8
+ BCC label2
+__arm_div_large
+ LSL r1, r1, #6
+ RSBS r12, r1, r0, LSR #8
+ ORR r2, r2, #0xfc000000
+ BCC label2
+ LSL r1, r1, #6
+ RSBS r12, r1, r0, LSR #8
+ ORR r2, r2, #0x3f00000
+ BCC label2
+ LSL r1, r1, #6
+ RSBS r12, r1, r0, LSR #8
+ ORR r2, r2, #0xfc000
+ ORRCS r2, r2, #0x3f00
+ LSLCS r1, r1, #6
+ RSBS r12, r1, #0
+ BCS __aeabi_idiv0
+label3
+ LSRCS r1, r1, #6
+label2
+ RSBS r12, r1, r0, LSR #7
+ SUBCS r0, r0, r1, LSL #7
+ ADC r2, r2, r2
+ RSBS r12, r1, r0, LSR #6
+ SUBCS r0, r0, r1, LSL #6
+ ADC r2, r2, r2
+ RSBS r12, r1, r0, LSR #5
+ SUBCS r0, r0, r1, LSL #5
+ ADC r2, r2, r2
+ RSBS r12, r1, r0, LSR #4
+ SUBCS r0, r0, r1, LSL #4
+ ADC r2, r2, r2
+label1
+ RSBS r12, r1, r0, LSR #3
+ SUBCS r0, r0, r1, LSL #3
+ ADC r2, r2, r2
+ RSBS r12, r1, r0, LSR #2
+ SUBCS r0, r0, r1, LSL #2
+ ADCS r2, r2, r2
+ BCS label3
+ RSBS r12, r1, r0, LSR #1
+ SUBCS r0, r0, r1, LSL #1
+ ADC r2, r2, r2
+ SUBS r1, r0, r1
+ MOVCC r1, r0
+ ADC r0, r2, r2
+ ASRS r3, r3, #31
+ RSBMI r0, r0, #0
+ RSBCS r1, r1, #0
+ BX r14
+
+ ; What to do about division by zero? For now, just return.
+__aeabi_idiv0
+ BX r14
+
+ END
+