ml64: Hexadecimal constants (?!)

[EricB]

Started using ml64 recently to port some extended precision arithmetic code to 64 bits.

Able to integrate things into a visual studio project.

However I've encountered a really annoying problem - how do I get ml64 to recognize hexadecimal immediate values??

For example:
mov    rax,fffffffffffffffeh
(attempting to move 64 bit value into rax)
generates the error:
error A2006:undefined symbol : fffffffffffffffeh

Decimal constants work fine. I thought appending an 'h' to a hex constant would work? - help

[jj2007]

Try mov rax,0fffffffffffffffeh

[qWord]

an short addition: for most compilers and assemblers numeric values must begin with an digit (0-9)

[EricB]

thank you, apparently need a zero in front of the immediate value.

[dedndave]

.......... in order to differentiate them from labels
labels must not begin with a (0-9) numeric digit
this includes names for data, code, constants

when you say "fffe", the assembler is looking for a label

[hutch--]

Eric,

Put a "0" at the front of the hex notation, this is normal in MASM where a number must have a leading digit.

Code Select Expand


    mov rax, 0FFFFFFFFh