28 Jan
2010
28 Jan
'10
4:04 a.m.
Does anyone know of a disassembler that will disassemble code for the family
of processors that the 8040 is in?
On 1/26/10 9:18 PM, "Chuck Guzis" <cclist at sydex.com> wrote:
On 26 Jan 2010 at 19:57, Geoffrey Reed wrote:
Dumb 8051ish related question....
Will 8040 code run on a '51? I have yet to find a definitive yea or
nay :(
Do you mean are the codes binary-compatible? No. They bear a
certain resemblance to each other in terms of programming model, but
the opcodes themselves are different.
For example:
04 on the 8048 is a jump
04 on the 8051 is INC A
Picking another at random
97 on the 8048 is CLR C
97 on the 8051 is SUBB A, at R1
No, if you try to run unmodified 8048 code on an 8051 or vice-versa,
you're going to crash and burn in short order.
--Chuck