Context in Assembly Language

Based on the provided input, here’s the translation of the Go code to Assembly Language, formatted in Markdown suitable for Hugo:

Our example demonstrates a simple HTTP server that utilizes context for handling cancellation. Here’s the assembly language equivalent:

section .data
    hello_msg db 'hello', 0xA
    hello_len equ $ - hello_msg
    server_start_msg db 'server: hello handler started', 0xA
    server_start_len equ $ - server_start_msg
    server_end_msg db 'server: hello handler ended', 0xA
    server_end_len equ $ - server_end_msg
    server_error_msg db 'server: context canceled', 0xA
    server_error_len equ $ - server_error_msg

section .text
    global _start

_start:
    ; Print server start message
    mov eax, 4
    mov ebx, 1
    mov ecx, server_start_msg
    mov edx, server_start_len
    int 0x80

    ; Simulate work (sleep for 10 seconds)
    mov eax, 162
    mov ebx, 10
    int 0x80

    ; Check for cancellation (simplified)
    ; In a real scenario, you'd need to implement proper signal handling
    cmp eax, 0
    jne cancellation

    ; Print hello message
    mov eax, 4
    mov ebx, 1
    mov ecx, hello_msg
    mov edx, hello_len
    int 0x80
    jmp end

cancellation:
    ; Print error message
    mov eax, 4
    mov ebx, 1
    mov ecx, server_error_msg
    mov edx, server_error_len
    int 0x80

end:
    ; Print server end message
    mov eax, 4
    mov ebx, 1
    mov ecx, server_end_msg
    mov edx, server_end_len
    int 0x80

    ; Exit
    mov eax, 1
    xor ebx, ebx
    int 0x80

This assembly code provides a simplified version of the context example. It simulates the basic flow of the original code, including:

1. Printing a start message.
2. Simulating work with a 10-second sleep.
3. Checking for cancellation (simplified).
4. Printing either a success message or an error message based on the cancellation check.
5. Printing an end message.

Note that this assembly code is a significant simplification. In a real assembly program, you would need to implement proper HTTP server functionality, context handling, and signal processing, which are complex tasks in low-level assembly language.

To run this assembly program:

1. Save the code in a file, e.g., context.asm.
2. Assemble the code:

$ nasm -f elf context.asm

3. Link the object file:

$ ld -m elf_i386 -o context context.o

4. Run the program:

$ ./context

This will print the messages and simulate the basic flow of the original program. However, it doesn’t actually set up an HTTP server or handle real HTTP requests.

In assembly language, concepts like contexts, HTTP servers, and goroutines don’t have direct equivalents. This example demonstrates the basic flow and message printing, but implementing the full functionality of the original program would require significantly more complex code and system calls.