What is the correct format for writing assembler code in NASM (Netwide Assembler)? When attempting to run a MASM32 (Microsoft Assembler) file in NASM, it appears that NASM does not recognize some MASM-specific instructions.
Are there any resources or documentation that explain the syntax and format differences between MASM and NASM? Additionally, what are the recommended steps or guidelines for converting MASM32 code to NASM-compatible code?
There's always the manual.
It includes a "quick start for MASM users" section that explains the key differences.
Since NASM 2.15 there's a MASM-compatibility macro package (%use masm) which will make mov eax,dword ptr foo work as a load in NASM, among other features.
But mov eax, foo is still the address, not a load like in MASM, so you do still need to port your code manually.