forked from AbleOS/ableos
37 lines
869 B
Markdown
37 lines
869 B
Markdown
Holey Bytes has two bit widths
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8 bit to help with byte level manipulation and 64 bit numbers because nothing else should ever be used in a modern setting
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this leaves us with an amount of registers that should be defined
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I'd like to use a letter and a number to represent registers
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like `a0` or `d0` the first of which would be reserved for 8 bit numbers and the later of which 64 bit.
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instructions
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### NOP
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`0`
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### ADD_8 TYPE LHS RHS LOCATION
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`1`
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### SUB TYPE LHS RHS LOCATION
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`2`
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### MUL TYPE LHS RHS LOCATION
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`3`
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### MUL TYPE LHS RHS LOCATION
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`4`
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### DIV TYPE LHS RHS LOCATION
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`5`
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### JUMP ADDR
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`100`
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an unconditional jump to an address
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### JUMP_EQ LHS RHS ADDR
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`101`
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A conditional jump
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if LHS is equal to RHS then jump to address
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### JUMP_NEQ LHS RHS ADDR
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`102`
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A conditional jump
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if LHS is not equal to RHS then jump to address
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### RET
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pop off the callstack |