Michael Petch

Michael Petch has asked 11 questions and find answers to 309 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

Running a Win32 app written in NASM results in 'This app cant run on your pc' error
Int 10H not working in QEMU
Newline byte 0Ah being ignored by x86_64 system call print program
Bootloader receives a disk read error when booting on real hardware but not on vmware, qemu, and bochs
Referencing symbols of code/data loaded separately to another part of memory
Kernel.c not executing complete code [OS from scratch]
Using r8 register as a loop counter results in endless loop - why?
GCC cross compiler for DOS produces linker errors for simple "Hello world!" in C
Masm string variable inside bootloader causes: Undefined symbol error
ASSUME directive using masm