 | Lars Fosdal on Security alarm provider Woonve… |
 | Thomas Mueller on Question got closed in May 202… |
 | Thaddy de Koning on Formulier voor bewindvoerders… |
| Thaddy de Koning on Formulier voor bewindvoerders… |
| Thaddy de Koning on Formulier voor bewindvoerders… |
Posted by jpluimers on 2025/11/25
[Wayback/Archive] Online x86 and x64 Intel Instruction Assembler
The source starts in these two files:
Posted in Assembly Language, Conference Topics, Conferences, Development, Event, Software Development, x64, x86 | Leave a Comment »
Posted by jpluimers on 2025/04/09
This is soooo cool: [Wayback/Archive] GitHub – PluMGMK/vbesvga.drv: Modern Generic SVGA driver for Windows 3.1
Modern Generic SVGA driver for Windows 3.1This is a rewrite of the Windows 3.1 SVGA driver, designed to support ALL available 8-bit, 16-bit, 24-bit or 32-bit graphic modes on any system providing the VESA BIOS Extensions (hence theVBEin the name). It is based on the Video 7 SVGA driver included in the Win16 Driver Development Kit, with most of the hardware-specific code gutted out, and with support added for multi-byte pixels.
Related:
svgapatch.zip properly archived.
svgapatch.zip downloadable from [Wayback/Archive] www.japheth.de/dwnload1.html at Wayback svgaptch.zip with the file being web.archive.org/web/20250106100041/https://www.japheth.de/Download/Win16/svgaptch.zip.It reminds me of other endevours to keep retro-software easy to use: Read the rest of this entry »
Posted in Assembly Language, Delphi, Delphi 1, Development, Power User, Software Development, Windows, Windows 3.11, x86 | Leave a Comment »
Posted by jpluimers on 2025/03/13
From a while back, but still interesting:
Especially the first link explains the algorithm very well and is similar to links referred to from the Stack Overflow question as it is based on counting ones (and leading ones are basically leading zeros but bit-inverted).
It also explains a cool thing for leading zeros: modern CPU have instructions which .NET Core.
Posted in .NET, AArch64/arm64, Algorithms, ARM, Assembly Language, C, C#, C++, Delphi, Development, Software Development, x64, x86 | Tagged: csharp, dotnet, dotnetcore | Leave a Comment »
Posted by jpluimers on 2025/01/14
For my link archive: below a series of articles my Raymond Chen on “The AArch64 processor (aka arm64)” in the order of appearance from a few years back and still very relevant today.
It is part of a few more series on processors that (were) supported by Windows. A good reference to find which version supported which processor architecture is the tables in List of Microsoft Windows versions – Wikipedia.
Posted in AArch64/arm64, ARM, Assembly Language, Development, History, MIPS R4000, PowerPC, Software Development, The Old New Thing, Windows Development, x64, x86 | Leave a Comment »
Posted by jpluimers on 2024/12/25
This brought back memories of some 40 years ago during my first steps learning x86 assembly language, realising the first comment: [Wayback/Archive] assembly – Difference between JE/JNE and JZ/JNZ – Stack Overflow
Q
In x86 assembly code, are
JEandJNEexactly the same asJZandJNZ?C
Long answer: yes.
C
TL:DR: same machine operation, different semantic meaning. Just like
jb/jc/jnaeall testing CF=1. See felixcloutier.com/x86/jcc
Merry X-mas everyone!
And thanks [Wayback/Archive] Daniel Hanrahan for asking, [Wayback/Archive] Hans Passant and [Wayback/Archive] Peter Cordes for commenting.
Be sure to read the rest of the comments and answers to read on the WHY these instructions are the same. That insight made me realise I was finally understanding the x86 architecture at a deeper level.
Related:
Sorted by Opcode column (with a little bit of help from Excel, Notepad++ and [Wayback/Archive] HTML Tables generator – TablesGenerator.com; then bolded or italicised the Description column of equivalent entries:
Opcode Instruction Op/En 64-Bit Mode Compat/Leg Mode Description 0F 80 cd JO rel32 D Valid Valid Jump near if overflow (OF=1). 0F 80 cw JO rel16 D N.S. Valid Jump near if overflow (OF=1). Not supported in 64-bit mode. 0F 81 cd JNO rel32 D Valid Valid Jump near if not overflow (OF=0). 0F 81 cw JNO rel16 D N.S. Valid Jump near if not overflow (OF=0). Not supported in 64-bit mode. 0F 82 cd JB rel32 D Valid Valid Jump near if below (CF=1). 0F 82 cd JC rel32 D Valid Valid Jump near if carry (CF=1). 0F 82 cd JNAE rel32 D Valid Valid Jump near if not above or equal (CF=1). 0F 82 cw JB rel16 D N.S. Valid Jump near if below (CF=1). Not supported in 64-bit mode. 0F 82 cw JC rel16 D N.S. Valid Jump near if carry (CF=1). Not supported in 64-bit mode. 0F 82 cw JNAE rel16 D N.S. Valid Jump near if not above or equal (CF=1). Not supported in 64-bit mode. 0F 83 cd JAE rel32 D Valid Valid Jump near if above or equal (CF=0). 0F 83 cd JNB rel32 D Valid Valid Jump near if not below (CF=0). 0F 83 cd JNC rel32 D Valid Valid Jump near if not carry (CF=0). 0F 83 cw JAE rel16 D N.S. Valid Jump near if above or equal (CF=0). Not supported in 64-bit mode. 0F 83 cw JNB rel16 D N.S. Valid Jump near if not below (CF=0). Not supported in 64-bit mode. 0F 83 cw JNC rel16 D N.S. Valid Jump near if not carry (CF=0). Not supported in 64-bit mode. 0F 84 cd JE rel32 D Valid Valid Jump near if equal (ZF=1). 0F 84 cd JZ rel32 D Valid Valid Jump near if 0 (ZF=1). 0F 84 cd JZ rel32 D Valid Valid Jump near if 0 (ZF=1). 0F 84 cw JE rel16 D N.S. Valid Jump near if equal (ZF=1). Not supported in 64-bit mode. 0F 84 cw JZ rel16 D N.S. Valid Jump near if 0 (ZF=1). Not supported in 64-bit mode. 0F 84 cw JZ rel16 D N.S. Valid Jump near if 0 (ZF=1). Not supported in 64-bit mode. 0F 85 cd JNE rel32 D Valid Valid Jump near if not equal (ZF=0). 0F 85 cd JNZ rel32 D Valid Valid Jump near if not zero (ZF=0). 0F 85 cw JNE rel16 D N.S. Valid Jump near if not equal (ZF=0). Not supported in 64-bit mode. 0F 85 cw JNZ rel16 D N.S. Valid Jump near if not zero (ZF=0). Not supported in 64-bit mode. 0F 86 cd JBE rel32 D Valid Valid Jump near if below or equal (CF=1 or ZF=1). 0F 86 cd JNA rel32 D Valid Valid Jump near if not above (CF=1 or ZF=1). 0F 86 cw JBE rel16 D N.S. Valid Jump near if below or equal (CF=1 or ZF=1). Not supported in 64-bit mode. 0F 86 cw JNA rel16 D N.S. Valid Jump near if not above (CF=1 or ZF=1). Not supported in 64-bit mode. 0F 87 cd JA rel32 D Valid Valid Jump near if above (CF=0 and ZF=0). 0F 87 cd JNBE rel32 D Valid Valid Jump near if not below or equal (CF=0 and ZF=0). 0F 87 cw JA rel16 D N.S. Valid Jump near if above (CF=0 and ZF=0). Not supported in 64-bit mode. 0F 87 cw JNBE rel16 D N.S. Valid Jump near if not below or equal (CF=0 and ZF=0). Not supported in 64-bit mode. 0F 88 cd JS rel32 D Valid Valid Jump near if sign (SF=1). 0F 88 cw JS rel16 D N.S. Valid Jump near if sign (SF=1). Not supported in 64-bit mode. 0F 89 cd JNS rel32 D Valid Valid Jump near if not sign (SF=0). 0F 89 cw JNS rel16 D N.S. Valid Jump near if not sign (SF=0). Not supported in 64-bit mode. 0F 8A cd JP rel32 D Valid Valid Jump near if parity (PF=1). 0F 8A cd JPE rel32 D Valid Valid Jump near if parity even (PF=1). 0F 8A cw JP rel16 D N.S. Valid Jump near if parity (PF=1). Not supported in 64-bit mode. 0F 8A cw JPE rel16 D N.S. Valid Jump near if parity even (PF=1). Not supported in 64-bit mode. 0F 8B cd JNP rel32 D Valid Valid Jump near if not parity (PF=0). 0F 8B cd JPO rel32 D Valid Valid Jump near if parity odd (PF=0). 0F 8B cw JNP rel16 D N.S. Valid Jump near if not parity (PF=0). Not supported in 64-bit mode. 0F 8B cw JPO rel16 D N.S. Valid Jump near if parity odd (PF=0). Not supported in 64-bit mode. 0F 8C cd JL rel32 D Valid Valid Jump near if less (SF≠ OF). 0F 8C cd JNGE rel32 D Valid Valid Jump near if not greater or equal (SF≠ OF). 0F 8C cw JL rel16 D N.S. Valid Jump near if less (SF≠ OF). Not supported in 64-bit mode. 0F 8C cw JNGE rel16 D N.S. Valid Jump near if not greater or equal (SF≠ OF). Not supported in 64-bit mode. 0F 8D cd JGE rel32 D Valid Valid Jump near if greater or equal (SF=OF). 0F 8D cd JNL rel32 D Valid Valid Jump near if not less (SF=OF). 0F 8D cw JGE rel16 D N.S. Valid Jump near if greater or equal (SF=OF). Not supported in 64-bit mode. 0F 8D cw JNL rel16 D N.S. Valid Jump near if not less (SF=OF). Not supported in 64-bit mode. 0F 8E cd JLE rel32 D Valid Valid Jump near if less or equal (ZF=1 or SF≠ OF). 0F 8E cd JNG rel32 D Valid Valid Jump near if not greater (ZF=1 or SF≠ OF). 0F 8E cw JLE rel16 D N.S. Valid Jump near if less or equal (ZF=1 or SF≠ OF). Not supported in 64-bit mode. 0F 8E cw JNG rel16 D N.S. Valid Jump near if not greater (ZF=1 or SF≠ OF). Not supported in 64-bit mode. 0F 8F cd JG rel32 D Valid Valid Jump near if greater (ZF=0 and SF=OF). 0F 8F cd JNLE rel32 D Valid Valid Jump near if not less or equal (ZF=0 and SF=OF). 0F 8F cw JG rel16 D N.S. Valid Jump near if greater (ZF=0 and SF=OF). Not supported in 64-bit mode. 0F 8F cw JNLE rel16 D N.S. Valid Jump near if not less or equal (ZF=0 and SF=OF). Not supported in 64-bit mode. 70 cb JO rel8 D Valid Valid Jump short if overflow (OF=1). 71 cb JNO rel8 D Valid Valid Jump short if not overflow (OF=0). 72 cb JB rel8 D Valid Valid Jump short if below (CF=1). 72 cb JC rel8 D Valid Valid Jump short if carry (CF=1). 72 cb JNAE rel8 D Valid Valid Jump short if not above or equal (CF=1). 73 cb JAE rel8 D Valid Valid Jump short if above or equal (CF=0). 73 cb JNB rel8 D Valid Valid Jump short if not below (CF=0). 73 cb JNC rel8 D Valid Valid Jump short if not carry (CF=0). 74 cb JE rel8 D Valid Valid Jump short if equal (ZF=1). 74 cb JZ rel8 D Valid Valid Jump short if zero (ZF = 1). 75 cb JNE rel8 D Valid Valid Jump short if not equal (ZF=0). 75 cb JNZ rel8 D Valid Valid Jump short if not zero (ZF=0). 76 cb JBE rel8 D Valid Valid Jump short if below or equal (CF=1 or ZF=1). 76 cb JNA rel8 D Valid Valid Jump short if not above (CF=1 or ZF=1). 77 cb JA rel8 D Valid Valid Jump short if above (CF=0 and ZF=0). 77 cb JNBE rel8 D Valid Valid Jump short if not below or equal (CF=0 and ZF=0). 78 cb JS rel8 D Valid Valid Jump short if sign (SF=1). 79 cb JNS rel8 D Valid Valid Jump short if not sign (SF=0). 7A cb JP rel8 D Valid Valid Jump short if parity (PF=1). 7A cb JPE rel8 D Valid Valid Jump short if parity even (PF=1). 7B cb JNP rel8 D Valid Valid Jump short if not parity (PF=0). 7B cb JPO rel8 D Valid Valid Jump short if parity odd (PF=0). 7C cb JL rel8 D Valid Valid Jump short if less (SF≠ OF). 7C cb JNGE rel8 D Valid Valid Jump short if not greater or equal (SF≠ OF). 7D cb JGE rel8 D Valid Valid Jump short if greater or equal (SF=OF). 7D cb JNL rel8 D Valid Valid Jump short if not less (SF=OF). 7E cb JLE rel8 D Valid Valid Jump short if less or equal (ZF=1 or SF≠ OF). 7E cb JNG rel8 D Valid Valid Jump short if not greater (ZF=1 or SF≠ OF). 7F cb JG rel8 D Valid Valid Jump short if greater (ZF=0 and SF=OF). 7F cb JNLE rel8 D Valid Valid Jump short if not less or equal (ZF=0 and SF=OF). E3 cb JCXZ rel8 D N.E. Valid Jump short if CX register is 0. E3 cb JECXZ rel8 D Valid Valid Jump short if ECX register is 0. E3 cb JRCXZ rel8 D Valid N.E. Jump short if RCX register is 0. Original table from the above Jcc link:
Opcode Instruction Op/En 64-Bit Mode Compat/Leg Mode Description 77 cb JA rel8 D Valid Valid Jump short if above (CF=0 and ZF=0). 73 cb JAE rel8 D Valid Valid Jump short if above or equal (CF=0). 72 cb JB rel8 D Valid Valid Jump short if below (CF=1). 76 cb JBE rel8 D Valid Valid Jump short if below or equal (CF=1 or ZF=1). 72 cb JC rel8 D Valid Valid Jump short if carry (CF=1). E3 cb JCXZ rel8 D N.E. Valid Jump short if CX register is 0. E3 cb JECXZ rel8 D Valid Valid Jump short if ECX register is 0. E3 cb JRCXZ rel8 D Valid N.E. Jump short if RCX register is 0. 74 cb JE rel8 D Valid Valid Jump short if equal (ZF=1). 7F cb JG rel8 D Valid Valid Jump short if greater (ZF=0 and SF=OF). 7D cb JGE rel8 D Valid Valid Jump short if greater or equal (SF=OF). 7C cb JL rel8 D Valid Valid Jump short if less (SF≠ OF). 7E cb JLE rel8 D Valid Valid Jump short if less or equal (ZF=1 or SF≠ OF). 76 cb JNA rel8 D Valid Valid Jump short if not above (CF=1 or ZF=1). 72 cb JNAE rel8 D Valid Valid Jump short if not above or equal (CF=1). 73 cb JNB rel8 D Valid Valid Jump short if not below (CF=0). 77 cb JNBE rel8 D Valid Valid Jump short if not below or equal (CF=0 and ZF=0). 73 cb JNC rel8 D Valid Valid Jump short if not carry (CF=0). 75 cb JNE rel8 D Valid Valid Jump short if not equal (ZF=0). 7E cb JNG rel8 D Valid Valid Jump short if not greater (ZF=1 or SF≠ OF). 7C cb JNGE rel8 D Valid Valid Jump short if not greater or equal (SF≠ OF). 7D cb JNL rel8 D Valid Valid Jump short if not less (SF=OF). 7F cb JNLE rel8 D Valid Valid Jump short if not less or equal (ZF=0 and SF=OF). 71 cb JNO rel8 D Valid Valid Jump short if not overflow (OF=0). 7B cb JNP rel8 D Valid Valid Jump short if not parity (PF=0). 79 cb JNS rel8 D Valid Valid Jump short if not sign (SF=0). 75 cb JNZ rel8 D Valid Valid Jump short if not zero (ZF=0). 70 cb JO rel8 D Valid Valid Jump short if overflow (OF=1). 7A cb JP rel8 D Valid Valid Jump short if parity (PF=1). 7A cb JPE rel8 D Valid Valid Jump short if parity even (PF=1). 7B cb JPO rel8 D Valid Valid Jump short if parity odd (PF=0). 78 cb JS rel8 D Valid Valid Jump short if sign (SF=1). 74 cb JZ rel8 D Valid Valid Jump short if zero (ZF = 1). 0F 87 cw JA rel16 D N.S. Valid Jump near if above (CF=0 and ZF=0). Not supported in 64-bit mode. 0F 87 cd JA rel32 D Valid Valid Jump near if above (CF=0 and ZF=0). 0F 83 cw JAE rel16 D N.S. Valid Jump near if above or equal (CF=0). Not supported in 64-bit mode. 0F 83 cd JAE rel32 D Valid Valid Jump near if above or equal (CF=0). 0F 82 cw JB rel16 D N.S. Valid Jump near if below (CF=1). Not supported in 64-bit mode. 0F 82 cd JB rel32 D Valid Valid Jump near if below (CF=1). 0F 86 cw JBE rel16 D N.S. Valid Jump near if below or equal (CF=1 or ZF=1). Not supported in 64-bit mode. 0F 86 cd JBE rel32 D Valid Valid Jump near if below or equal (CF=1 or ZF=1). 0F 82 cw JC rel16 D N.S. Valid Jump near if carry (CF=1). Not supported in 64-bit mode. 0F 82 cd JC rel32 D Valid Valid Jump near if carry (CF=1). 0F 84 cw JE rel16 D N.S. Valid Jump near if equal (ZF=1). Not supported in 64-bit mode. 0F 84 cd JE rel32 D Valid Valid Jump near if equal (ZF=1). 0F 84 cw JZ rel16 D N.S. Valid Jump near if 0 (ZF=1). Not supported in 64-bit mode. 0F 84 cd JZ rel32 D Valid Valid Jump near if 0 (ZF=1). 0F 8F cw JG rel16 D N.S. Valid Jump near if greater (ZF=0 and SF=OF). Not supported in 64-bit mode. 0F 8F cd JG rel32 D Valid Valid Jump near if greater (ZF=0 and SF=OF). 0F 8D cw JGE rel16 D N.S. Valid Jump near if greater or equal (SF=OF). Not supported in 64-bit mode. 0F 8D cd JGE rel32 D Valid Valid Jump near if greater or equal (SF=OF). 0F 8C cw JL rel16 D N.S. Valid Jump near if less (SF≠ OF). Not supported in 64-bit mode. 0F 8C cd JL rel32 D Valid Valid Jump near if less (SF≠ OF). 0F 8E cw JLE rel16 D N.S. Valid Jump near if less or equal (ZF=1 or SF≠ OF). Not supported in 64-bit mode. 0F 8E cd JLE rel32 D Valid Valid Jump near if less or equal (ZF=1 or SF≠ OF). 0F 86 cw JNA rel16 D N.S. Valid Jump near if not above (CF=1 or ZF=1). Not supported in 64-bit mode. 0F 86 cd JNA rel32 D Valid Valid Jump near if not above (CF=1 or ZF=1). 0F 82 cw JNAE rel16 D N.S. Valid Jump near if not above or equal (CF=1). Not supported in 64-bit mode. 0F 82 cd JNAE rel32 D Valid Valid Jump near if not above or equal (CF=1). 0F 83 cw JNB rel16 D N.S. Valid Jump near if not below (CF=0). Not supported in 64-bit mode. 0F 83 cd JNB rel32 D Valid Valid Jump near if not below (CF=0). 0F 87 cw JNBE rel16 D N.S. Valid Jump near if not below or equal (CF=0 and ZF=0). Not supported in 64-bit mode. 0F 87 cd JNBE rel32 D Valid Valid Jump near if not below or equal (CF=0 and ZF=0). 0F 83 cw JNC rel16 D N.S. Valid Jump near if not carry (CF=0). Not supported in 64-bit mode. 0F 83 cd JNC rel32 D Valid Valid Jump near if not carry (CF=0). 0F 85 cw JNE rel16 D N.S. Valid Jump near if not equal (ZF=0). Not supported in 64-bit mode. 0F 85 cd JNE rel32 D Valid Valid Jump near if not equal (ZF=0). 0F 8E cw JNG rel16 D N.S. Valid Jump near if not greater (ZF=1 or SF≠ OF). Not supported in 64-bit mode. 0F 8E cd JNG rel32 D Valid Valid Jump near if not greater (ZF=1 or SF≠ OF). 0F 8C cw JNGE rel16 D N.S. Valid Jump near if not greater or equal (SF≠ OF). Not supported in 64-bit mode. 0F 8C cd JNGE rel32 D Valid Valid Jump near if not greater or equal (SF≠ OF). 0F 8D cw JNL rel16 D N.S. Valid Jump near if not less (SF=OF). Not supported in 64-bit mode. 0F 8D cd JNL rel32 D Valid Valid Jump near if not less (SF=OF). 0F 8F cw JNLE rel16 D N.S. Valid Jump near if not less or equal (ZF=0 and SF=OF). Not supported in 64-bit mode. 0F 8F cd JNLE rel32 D Valid Valid Jump near if not less or equal (ZF=0 and SF=OF). 0F 81 cw JNO rel16 D N.S. Valid Jump near if not overflow (OF=0). Not supported in 64-bit mode. 0F 81 cd JNO rel32 D Valid Valid Jump near if not overflow (OF=0). 0F 8B cw JNP rel16 D N.S. Valid Jump near if not parity (PF=0). Not supported in 64-bit mode. 0F 8B cd JNP rel32 D Valid Valid Jump near if not parity (PF=0). 0F 89 cw JNS rel16 D N.S. Valid Jump near if not sign (SF=0). Not supported in 64-bit mode. 0F 89 cd JNS rel32 D Valid Valid Jump near if not sign (SF=0). 0F 85 cw JNZ rel16 D N.S. Valid Jump near if not zero (ZF=0). Not supported in 64-bit mode. 0F 85 cd JNZ rel32 D Valid Valid Jump near if not zero (ZF=0). 0F 80 cw JO rel16 D N.S. Valid Jump near if overflow (OF=1). Not supported in 64-bit mode. 0F 80 cd JO rel32 D Valid Valid Jump near if overflow (OF=1). 0F 8A cw JP rel16 D N.S. Valid Jump near if parity (PF=1). Not supported in 64-bit mode. 0F 8A cd JP rel32 D Valid Valid Jump near if parity (PF=1). 0F 8A cw JPE rel16 D N.S. Valid Jump near if parity even (PF=1). Not supported in 64-bit mode. 0F 8A cd JPE rel32 D Valid Valid Jump near if parity even (PF=1). 0F 8B cw JPO rel16 D N.S. Valid Jump near if parity odd (PF=0). Not supported in 64-bit mode. 0F 8B cd JPO rel32 D Valid Valid Jump near if parity odd (PF=0). 0F 88 cw JS rel16 D N.S. Valid Jump near if sign (SF=1). Not supported in 64-bit mode. 0F 88 cd JS rel32 D Valid Valid Jump near if sign (SF=1). 0F 84 cw JZ rel16 D N.S. Valid Jump near if 0 (ZF=1). Not supported in 64-bit mode. 0F 84 cd JZ rel32 D Valid Valid Jump near if 0 (ZF=1).
--jeroen
Posted in Assembly Language, Development, Software Development, x86 | Leave a Comment »
Posted by jpluimers on 2024/09/18
A few years back the way Intel Microcode updates were distributed deciphered so it became possible to extract and research the microcode of some processor models.
Repository: [Wayback/Archive] chip-red-pill/MicrocodeDecryptor
Posted in Assembly Language, Development, Software Development, x64, x86 | Leave a Comment »
Posted by jpluimers on 2024/09/17
Repository:
A Video that way better explains how the hacks work to make this happen is at [Wayback] You can run Doom inside (DOS) Doom, for real. – YouTube
I have found a code execution exploit in the original DOS Doom 2 and ported a Chocolate Doom to it. And then Chocolate Heretic.
Attention: This does only work on the original DOS Doom2 version, no GZDoom or other source ports. This is a good thing as you don’t want code execution exploit on modern systems. People would abuse it to spread malicious code.
DOS version is available on Steam and you can use DosBox emulator to run it.
Copy
kgdid.wadto the directory where you have doom2.exe and then in DosBox start it with command “doom2 -file kgdid.wad“.(Copy other files too if you want to try them. Game injection has to be renamed to
doomsav4.dsg)
Related:
–jeroen
Posted in Assembly Language, Development, DOOM, Games, MS-DOS, Power User, Software Development, x86 | Leave a Comment »
Posted by jpluimers on 2024/06/18
It is more than a decade old but still the best reference around [Wayback/Archive] -= pnx.tf =- has [Wayback] x86_opcode_structure_and_instruction_overview.pdf
I found it via [Wayback/Archive] Alice Climent-Pommeret on Twitter: “I’ve just discovered this amazing document showing super clearly the relation between the opcode and the instruction 🤯 …”
Posted in Assembly Language, Development, Software Development, x64, x86 | Leave a Comment »
Posted by jpluimers on 2024/06/13
This is from a long time ago [Wayback/Archive] Does Delphi support all MMX/SSE instructions? – Stack Overflow:
Delphi 2007 supports the MMX and SSE instruction sets. Certainly, Delphi 2010 and XE support up to the SSE4.2 instruction sets (but so far no support for AVX).
The [Wayback] Delphi 2005 Language Guide explained a bit, but no more recent PDF is available and the [Wayback/Archive] Embarcadero/IDERA Documentation Wiki is very much outdated on this information as per [Wayback/Archive] Talk:Assembler Syntax – RAD Studio:
Re: “Instruction Opcodes” The information on available instruction sets is outdated. D2010 and Fulcrum support the SIMD instruction sets all the way up to SSE4.2 (i.e., SSE, SSE2, SSE3, SSSE3, SSE4.1 and SSE4.2).
–jeroen
Posted in Assembly Language, Delphi, Development, Software Development, x64, x86 | Leave a Comment »
Posted by jpluimers on 2024/02/28
Below is a list of the Borland documentation that BitSavers added in 2022, ordered by relevance to me (and how I finally asked Peter Sawatzki if he still had the monochrome TDVIDEO.DLL he wrote for Turbo Debugger 3.0 for Windows):
Posted in 8087, Algorithms, Assembly Language, Borland C++, C, C++, Debugging, Development, Floating point handling, Profiling, Software Development, Turbo Assembler, Turbo C, Turbo Debugger, Turbo Profiler, x86 | Leave a Comment »
The Wiert Corner - irregular stream of stuff 