Michael Petch

Michael Petch has asked 11 questions and find answers to 297 problems.

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About

Software engineer and software architect. I can be reached at [email protected].

Michael Petch questions

What do the constraints "Rah" and "Ral" mean in extended inline assembly?
Solution needed for building a static IDT and GDT at assemble/compile/link time
Understanding Inline assembly in a pre-processor macro vs Inline assembly in a function
GCC code that seems to break inline assembly rules but an expert believes otherwise
Problem switching to v8086 mode from 32-bit protected mode by setting EFLAGS.VM to 1
Near call/jump tables don't always work in a bootloader
Should using MOV instruction to set SS to 0x0000 cause fault #GP(0) in 64-bit mode?
Legacy BIOS bootloader to bootstrap real-mode code in second stage

Michael Petch answers

Mac OS: ld: in section __DATA,__data reloc 0: length < 2 and X86_64_RELOC_UNSIGNED not supported
Does writing a value to the BX register have an effect on the ES register?
static C variable not getting initialized
Why the address is 0xF000:0xE05B in the long jump instruction located at 0xFFFF0 in BIOS?
How can I make a batch file that automatically builds, links and executes a .asm file?
macro vs equ in nasm
Why syscall doesn't work?
Load segment from floppy with int13h
Protected Mode Addressing
Error while formatting disk with BIOS in real mode