It seems like every hardware vendor (and sometimes each compiler) provides its own syntax for assembly code. Leaving aside the obvious fact that each ISA has i

It seems like every hardware vendor (and sometimes each compiler) provides its own syntax for assembly code. Leaving aside the obvious fact that each ISA has its own instructions, nearly everything else varies from one assembler to the next. Are clobbered registers the left-most or right-most argument? How are comments expressed? Are operands separated by space alone or with commas? How are jump target labels expressed? How are addressing modes expressed? Go source diving in the FreeRTOS source code and you'll see that even when several different compilers support the same architecture (eg ARMv7-M), they will all have slightly incompatible assembly code syntax.