diff options
| author |   Angelos Mouzakitis <a.mouzakitis@virtualopensystems.com> | 2023-10-10 14:33:42 +0000 |
|---|---|---|
| committer | Angelos Mouzakitis <a.mouzakitis@virtualopensystems.com> | 2023-10-10 14:33:42 +0000 |
| commit | af1a266670d040d2f4083ff309d732d648afba2a (patch) | |
| tree | 2fc46203448ddcc6f81546d379abfaeb323575e9 /roms/edk2/CryptoPkg/Library/IntrinsicLib/Ia32 | |
| parent | e02cda008591317b1625707ff8e115a4841aa889 (diff) | |
Change-Id: Iaf8d18082d3991dec7c0ebbea540f092188eb4ec
Diffstat (limited to 'roms/edk2/CryptoPkg/Library/IntrinsicLib/Ia32')
5 files changed, 206 insertions, 0 deletions
diff --git a/roms/edk2/CryptoPkg/Library/IntrinsicLib/Ia32/MathFtol.c b/roms/edk2/CryptoPkg/Library/IntrinsicLib/Ia32/MathFtol.c new file mode 100644 index 000000000..147a19a4a --- /dev/null +++ b/roms/edk2/CryptoPkg/Library/IntrinsicLib/Ia32/MathFtol.c @@ -0,0 +1,22 @@ +/** @file
+ 64-bit Math Worker Function.
+ The 32-bit versions of C compiler generate calls to library routines
+ to handle 64-bit math. These functions use non-standard calling conventions.
+
+Copyright (c) 2019, Intel Corporation. All rights reserved.<BR>
+SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+/*
+ * Floating point to integer conversion.
+ */
+__declspec(naked) void _ftol2 (void)
+{
+ _asm {
+ fistp qword ptr [esp-8]
+ mov edx, [esp-4]
+ mov eax, [esp-8]
+ ret
+ }
+}
diff --git a/roms/edk2/CryptoPkg/Library/IntrinsicLib/Ia32/MathLShiftS64.c b/roms/edk2/CryptoPkg/Library/IntrinsicLib/Ia32/MathLShiftS64.c new file mode 100644 index 000000000..fa35d9b72 --- /dev/null +++ b/roms/edk2/CryptoPkg/Library/IntrinsicLib/Ia32/MathLShiftS64.c @@ -0,0 +1,48 @@ +/** @file
+ 64-bit Math Worker Function.
+ The 32-bit versions of C compiler generate calls to library routines
+ to handle 64-bit math. These functions use non-standard calling conventions.
+
+Copyright (c) 2014, Intel Corporation. All rights reserved.<BR>
+SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+
+/*
+ * Shifts a 64-bit signed value left by a particular number of bits.
+ */
+__declspec(naked) void __cdecl _allshl (void)
+{
+ _asm {
+ ;
+ ; Handle shifting of 64 or more bits (return 0)
+ ;
+ cmp cl, 64
+ jae short ReturnZero
+
+ ;
+ ; Handle shifting of between 0 and 31 bits
+ ;
+ cmp cl, 32
+ jae short More32
+ shld edx, eax, cl
+ shl eax, cl
+ ret
+
+ ;
+ ; Handle shifting of between 32 and 63 bits
+ ;
+More32:
+ mov edx, eax
+ xor eax, eax
+ and cl, 31
+ shl edx, cl
+ ret
+
+ReturnZero:
+ xor eax,eax
+ xor edx,edx
+ ret
+ }
+}
diff --git a/roms/edk2/CryptoPkg/Library/IntrinsicLib/Ia32/MathLShiftS64.nasm b/roms/edk2/CryptoPkg/Library/IntrinsicLib/Ia32/MathLShiftS64.nasm new file mode 100644 index 000000000..056b5b1fb --- /dev/null +++ b/roms/edk2/CryptoPkg/Library/IntrinsicLib/Ia32/MathLShiftS64.nasm @@ -0,0 +1,42 @@ +;------------------------------------------------------------------------------
+;
+; Copyright (c) 2016, Intel Corporation. All rights reserved.<BR>
+; SPDX-License-Identifier: BSD-2-Clause-Patent
+;
+; Module Name:
+;
+; MathLShiftS64.nasm
+;
+; Abstract:
+;
+; 64-bit Math Worker Function.
+; Shifts a 64-bit signed value left by a certain number of bits.
+;
+;------------------------------------------------------------------------------
+
+ SECTION .text
+
+global ASM_PFX(__ashldi3)
+;------------------------------------------------------------------------------
+;
+; void __cdecl __ashldi3 (void)
+;
+;------------------------------------------------------------------------------
+ASM_PFX(__ashldi3):
+ cmp cl,0x40
+ jnc ReturnZero
+ cmp cl,0x20
+ jnc More32
+ shld edx,eax,cl
+ shl eax,cl
+ ret
+More32:
+ mov edx,eax
+ xor eax,eax
+ and cl,0x1f
+ shl edx,cl
+ ret
+ReturnZero:
+ xor eax,eax
+ xor edx,edx
+ ret
diff --git a/roms/edk2/CryptoPkg/Library/IntrinsicLib/Ia32/MathRShiftU64.c b/roms/edk2/CryptoPkg/Library/IntrinsicLib/Ia32/MathRShiftU64.c new file mode 100644 index 000000000..efa38983a --- /dev/null +++ b/roms/edk2/CryptoPkg/Library/IntrinsicLib/Ia32/MathRShiftU64.c @@ -0,0 +1,51 @@ +/** @file
+ 64-bit Math Worker Function.
+ The 32-bit versions of C compiler generate calls to library routines
+ to handle 64-bit math. These functions use non-standard calling conventions.
+
+Copyright (c) 2014, Intel Corporation. All rights reserved.<BR>
+SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+
+/*
+ * Shifts a 64-bit unsigned value right by a certain number of bits.
+ */
+__declspec(naked) void __cdecl _aullshr (void)
+{
+ _asm {
+ ;
+ ; Checking: Only handle 64bit shifting or more
+ ;
+ cmp cl, 64
+ jae _Exit
+
+ ;
+ ; Handle shifting between 0 and 31 bits
+ ;
+ cmp cl, 32
+ jae More32
+ shrd eax, edx, cl
+ shr edx, cl
+ ret
+
+ ;
+ ; Handle shifting of 32-63 bits
+ ;
+More32:
+ mov eax, edx
+ xor edx, edx
+ and cl, 31
+ shr eax, cl
+ ret
+
+ ;
+ ; Invalid number (less then 32bits), return 0
+ ;
+_Exit:
+ xor eax, eax
+ xor edx, edx
+ ret
+ }
+}
diff --git a/roms/edk2/CryptoPkg/Library/IntrinsicLib/Ia32/MathRShiftU64.nasm b/roms/edk2/CryptoPkg/Library/IntrinsicLib/Ia32/MathRShiftU64.nasm new file mode 100644 index 000000000..1d51a4dfa --- /dev/null +++ b/roms/edk2/CryptoPkg/Library/IntrinsicLib/Ia32/MathRShiftU64.nasm @@ -0,0 +1,43 @@ +;------------------------------------------------------------------------------
+;
+; Copyright (c) 2016, Intel Corporation. All rights reserved.<BR>
+; SPDX-License-Identifier: BSD-2-Clause-Patent
+;
+; Module Name:
+;
+; MathRShiftU64.nasm
+;
+; Abstract:
+;
+; 64-bit Math Worker Function.
+; Shifts a 64-bit unsigned value right by a certain number of bits.
+;
+;------------------------------------------------------------------------------
+
+ SECTION .text
+
+;------------------------------------------------------------------------------
+;
+; void __cdecl __ashrdi3 (void)
+;
+;------------------------------------------------------------------------------
+global ASM_PFX(__ashrdi3)
+ASM_PFX(__ashrdi3):
+ cmp cl,0x40
+ jnc _Exit
+ cmp cl,0x20
+ jnc More32
+ shrd eax,edx,cl
+ shr edx,cl
+ ret
+More32:
+ mov eax,edx
+ xor edx,edx
+ and cl,0x1f
+ shr eax,cl
+ ret
+_Exit:
+ xor eax,eax
+ xor edx,edx
+ ret
+
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