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Questions tagged [machine-code]

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2 votes
3 answers
910 views

How can I run a machine language program off the disk drive on an Apple II?

Apple II was the first computer I used and programmed on, but only in BASIC, and back in 1979. I learned machine code on my ZX Spectrum which was tape only. On Apple II how do you load/run a machine ...
hippietrail's user avatar
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5 votes
2 answers
5k views

What does it mean to "publish machine code"?

The Wikipedia article on “An Open Letter to Hobbysts” says that Bill Gates complained about hobbyists pirating his software, and due to piracy he refused to publish the machine code of his Altair ...
robertspierre's user avatar
15 votes
3 answers
3k views

Difference between machine language and machine code, maybe in the C64 community?

I've always been sure that "machine language" and "machine code" are totally synonymous and mean programming directly in the language the machine understands, whether in binary, ...
hippietrail's user avatar
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9 votes
1 answer
527 views

Why does the LGP-30 leave half its instruction word unused?

I am looking at the machine code for the LGP-30, which is found to have a very strange instruction word layout. 12 ignored bits 4 bits for the opcode 2 more ignored bits 12 bits for the operand, ...
Omar and Lorraine's user avatar