ASM

1. Assembly asm

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ID: c57c2462-7e95-4e6b-9f5b-d7207aeda442
CREATED: <2025-03-08 Sat 20:16>

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[2025-03-08 Sat 20:54] <- SB-ASSEM

1.1. FASM

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ID: e4f61fa4-82c8-47c4-8eaf-0c6f6cd6c347
CREATED: <2025-03-09 Sun 20:58>

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[2025-03-09 Sun 20:58] – flat assembler
[2025-03-09 Sun 20:59] – man
[2025-03-09 Sun 21:00] – ufasm

1.2. NASM

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ID: 5f4daaa9-8536-4051-b2b3-b4669f7960ee
CREATED: <2025-01-17 Fri 18:23>

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[2025-01-17 Fri 18:23] – NASM

hello world

section.data
     msg db 'Hello, World!', 0

section.text
     global _start
_start:
     mov rax, 1 ; syscall: write
     mov rdi, 1 ; file descriptor: stdout
     mov rsi, msg ; pointer to message
     mov rdx, 13 ; message length
     syscall; make the syscall
     mov rax, 60 ; syscall: exit
     xor rdi, rdi ; status: 0
     syscall; make the syscall

hello linux

;;; asm/hello.linux.asm --- nasm example -*- mode:asm -*-

;; nasm -f elf hello.linux.asm && ld -m elf_i386 hello.linux.o -o hello.linux && hello.linux

;;; Code:
global _start

section .data
msg:    db  "Hello, world!", 10
.len:   equ $ - msg

section .text
_start:
    mov eax, 4 ; write
    mov ebx, 1 ; stdout
    mov ecx, msg
    mov edx, msg.len
    int 0x80   ; write(stdout, msg, strlen(msg));

    xor eax, msg.len ; invert return value from write()
    xchg eax, ebx ; value for exit()
    mov eax, 1 ; exit
    int 0x80   ; exit(...)

1.3. GAS

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ID: 2a7304bc-b666-4ea6-a37d-64487875ff4e
CREATED: <2025-08-08 Fri 22:08>

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[2025-08-08 Fri 22:08] – OSDev Wiki

Binutils - GNU Project - Free Software Foundation
x86_64 Assembly Tutorial with GNU Assembler (GAS) for Beginners

hello world

.section.data
hello:
     .ascii "Hello, World!\0"

.section.text
.globl_start

_start:
     mov $1, %rax # syscall: sys_write
     mov $1, %rdi # file descriptor: stdout
     mov $hello, %rsi # string address
     mov $13, %rdx # string length
     syscall # calls the kernel

     mov $60, %rax # syscall: sys_exit
     xor %rdi, %rdi # exit status: 0
     syscall # calls the kernel

1.4. x86 x86

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ID: 3eec30c3-ab67-42f1-b77f-191905d43c6c
CREATED: <2025-03-02 Sun 21:19>

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[2025-03-02 Sun 21:19] – Guide to x86 Assembly
[2025-03-03 Mon 14:38] – x86 instruction listings - Wikipedia
[2025-04-06 Sun 17:52] – x86 calling conventions - Wikipedia

1.4.1. x86_64 x86_64

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ID: 4c7530b8-6d6f-475a-b2a3-986a10a0d812
CREATED: <2025-03-02 Sun 21:19>
AKA: AMD64

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[2025-03-02 Sun 21:20] – x86-64 - Wikipedia
[2025-03-02 Sun 21:20] – Resources on x86_64 ISA · GitHub
[2025-03-02 Sun 21:21] – intel dev manuals

1.4.2. Extensions

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ID: c9748bd6-8f6b-459e-b863-b2b155e3e420
CREATED: <2025-03-03 Mon 14:33>

SIMD

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ID: d9641715-f038-4093-961d-87489fb2390d
CREATED: <2025-03-03 Mon 14:34>
1. SWAR
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  ID: d47a1ee5-0cf8-4ea2-9d5f-4c2396f34bc8
  CREATED: <2025-06-03 Tue 19:29>
  AKA: Packed SIMD
  
  SIMD within a register
  - a technique used for performing SIMD ops on data contained in cpu registers
2. AVX
  
  properties
  ID: 9e9bfa13-eed1-49a8-bad1-bfa2f2dade86
  CREATED: <2025-03-03 Mon 14:33>
  
  [2025-03-03 Mon 14:34] – Advanced Vector Extensions - Wikipedia :END:
3. SSE
  
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  ID: 37c0d23a-8c9b-49d9-98e9-964ca52be6de
  CREATED: <2025-03-03 Mon 14:34>
  
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  [2025-03-03 Mon 14:34] – Streaming SIMD Extensions - Wikipedia
4. PAE
  
  properties
  ID: 3234c77c-97dd-4180-b8ca-48e18de7ab81
  CREATED: <2025-03-03 Mon 14:35>
  
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  [2025-03-03 Mon 14:35] – Physical Address Extension - Wikipedia
APX

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ID: c06fcd4c-193a-4ba7-bd16-3b8e537dd2ad
CREATED: <2025-03-03 Mon 14:34>

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[2025-03-03 Mon 14:36] – Introducing Intel Advanced Performance Extensions (Intel APX)
AES

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ID: 96d5af9b-48f1-4d26-bcdd-a6ed47a73141
CREATED: <2025-03-03 Mon 14:37>

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[2025-03-03 Mon 14:37] – AES instruction set - Wikipedia
Virtualization
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ID: 5c9317c4-d3fc-4648-bfe2-38d9ca0719ec
CREATED: <2025-03-03 Mon 14:39>

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[2025-03-03 Mon 14:39] – x86 virtualization - Wikipedia
[2025-03-03 Mon 16:56] – Enabling Intel VT and AMD-V virtualization hardware extensions in BIOS
[2026-05-17 Sun 16:29] – Virtualization Security (Intel)
- 0voice/Introduce_to_virtualization/papers
1. AMD-V
  
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  ID: 5aabf9b2-3071-40cc-acfb-f93ed4a15afb
  CREATED: <2025-03-03 Mon 14:39>
  
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  [2026-05-17 Sun 16:30] – AMD Pacifica Specification
  [2025-03-02 Sun 21:22] – home
  
  AMD-virtualization (AMD-V) is the implementation of a Secure Virtual Machine from AMD. Developed under the codename Pacifica, AMD first launched these features under the name AMD Secure Virtual Machine (SVM). The corresponding CPU-flag is also called svm.
2. Intel VT-x
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  ID: 16a8ffe9-da94-43dd-be0f-7e0d7af68476
  CREATED: <2025-03-03 Mon 14:39>
  
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  [2026-05-17 Sun 16:38] – Intel Virtualization
  
  Previously codenamed Vanderpool, VT-x represents Intel's technology for virtualization on the x86 platform.
  - Acontis And Motrotech Industrial Workload Consolidation With Intel VT