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Grex Micros Item 54: Assembler question
Entered by spam on Thu Jul 15 19:23:19 UTC 1993:

I have a wuestion from a friend of mine doing some assembler work:
 
I am using a PsudoCode cross assembler running under dos generating 8085
object code, targeted for an Z80 micro. It uses the standard Intel mnemonics
with some unique assembler directives. I want to use a variable stored in a
memory location as an I/O port address. Any ideas?      THX,    JT
 .

2 responses total.

#1 of 2 by mkoch on Wed May 18 22:00:20 1994:

Hmm, good one, the Intel family on PCs uses IN and OUT for port addresses over
1000h (or could have been 256h), but I really have no clue if a Z80 will have
something similar. Sounds like you are doing some stuff for embedded systems.
Fix your port  address and write an interupt routine that will push the
contents of that add s on the stack, or handles the whole thingy in one short
interval, like popping it into a diff. memory location where you want it. Humm.

#2 of 2 by keesan on Thu Feb 5 01:26:58 1998:

Another Assembler question.  Does anyone have, or know where I can get,
Microsoft's version of Assembler language MASM 5.1 for 16 bit.  All that is
for sale now is for 32 bit.  I would b happy to pay for it with a manual, but
if you want to keep it, a software copy would be appreciated.

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