[Beowulf] SGI and Sun: In Memoriam

Tim Cutts tjrc at sanger.ac.uk
Fri Apr 3 05:19:18 EDT 2009


On 3 Apr 2009, at 12:14 am, Lux, James P wrote:

> But at least the assembler is still source code compatible with your  
> code for an 8080.

Is it really?  Do

mov a,m

or

dad d

exist on X86?  I always got the impression that there wasn't real  
compatibility between the 8080 and 8086, just that they made the  
instruction sets similar enough that translating your code wasn't  
*that* painful?

Euch. I really hate Intel opcodes.  I much preferred Zilog's Z80  
mnemonics for the same operations which, if I remember correctly, were  
LD A,(HL) and ADD HL,DE for the above two instructions, respectively.

Tim



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