More specification.
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@ -79,14 +79,71 @@ An instruction is only executed when all conditions are met.
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| 5 | BPGET | output = BP |
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| 6 | BPSET | output = BP = input0 |
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| 7 | RSTSTACK | output = SP = BP |
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| 8 | | |
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| 9 | | |
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| 10 | | |
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| 8 | MATH | output = input0 OP[info] input1 |
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| 9 | spget | output = SP + input0 |
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| 10 | spset | output = SP + input0 = input1 |
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| 11 | | |
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| 12 | | |
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| 13 | | |
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| 14 | | |
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| 15 | | |
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### Math
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The math operator is a compound operator that contains all
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arithmetic operations. The arithmetic operation is selected
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by the `cmdinfo`.
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## Assembler Mnemonics
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| cmdinfo | Operation |
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|---------|-----------------------------|
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| 0 | Addition |
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| 1 | Subtraction |
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| 2 | Multiplication |
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| 3 | Division |
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| 4 | Euclidean Division / Modulo |
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| 5 | Bitwise Logic And |
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| 6 | Bitwise Logic Or |
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| 7 | Bitwise Logic Xor |
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| 8 | Bitwise Logic Not |
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| 9 | Rotating Bit Shift Left |
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| 10 | Rotating Bit Shift Right |
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| 11 | Arithmetic Bit Shift Left |
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| 12 | Arithmetic Bit Shift Right |
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| 13 | Logic Bit Shift Left |
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| 14 | Logic Bit Shift Right |
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## Assembler Mnemonics
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| Mnemonic | Arg? | i0 | i1 | Cmd | CmdInfo | Output |
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|----------|------|------|------|-------|----------|---------|
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| nop | no | zero | zero | copy | 0 | discard |
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| push | yes | arg | zero | copy | 0 | push |
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| drop | no | pop | zero | copy | 0 | discard |
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| dup | no | peek | zero | copy | 0 | push |
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| jmp | yes | arg | zero | copy | 0 | jump |
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| jmpi | no | pop | zero | copy | 0 | jump |
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| ret | no | pop | zero | copy | 0 | jump |
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| load | yes | arg | zero | load | 0 | push |
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| loadi | no | pop | zero | load | 0 | push |
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| store | yes | arg | pop | store | 0 | discard |
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| storei | no | pop | pop | store | 0 | discard |
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| get | yes | arg | zero | get | 0 | push |
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| geti | no | pop | zero | get | 0 | push |
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| set | yes | arg | pop | set | 0 | discard |
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| seti | no | pop | pop | set | 0 | discard |
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| bpget | no | zero | zero | bpget | 0 | push |
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| bpset | no | pop | zero | bpset | 0 | discard |
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| add | no | pop | pop | math | 0 | push |
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| sub | no | pop | pop | math | 1 | push |
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| mul | no | pop | pop | math | 2 | push |
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| div | no | pop | pop | math | 3 | push |
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| mod | no | pop | pop | math | 4 | push |
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| and | no | pop | pop | math | 5 | push |
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| or | no | pop | pop | math | 6 | push |
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| xor | no | pop | pop | math | 7 | push |
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| not | no | pop | zero | math | 8 | push |
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| rol | no | pop | pop | math | 9 | push |
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| ror | no | pop | pop | math | 10 | push |
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| asl | no | pop | pop | math | 11 | push |
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| asr | no | pop | pop | math | 12 | push |
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| shl | no | pop | pop | math | 13 | push |
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| shr | no | pop | pop | math | 14 | push |
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