11 lines
406 B
Markdown
11 lines
406 B
Markdown
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# System Calls
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The system API is exposed to user code using the COP interrupt.
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The high byte of the C accumulator is loaded with a function number;
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the other registers are loaded with call-specific data (or nothing),
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and any return values are placed in the same registers.
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What follows is a list of the system calls, their numbers, and
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register arguments they take, and what if any values they return.
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