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Added ATOR VM instruction.

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Bobbi Webber-Manners 2018-05-02 22:25:44 -04:00 committed by GitHub
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@ -868,6 +868,7 @@ The call stack is used for all memory allocation within the virtual machine, as
| PSHB | Push 8 bit value in X onto call stack. Drop X. |
| SPTOFP | Copy stack pointer to frame pointer. (Enter function scope) |
| FPTOSP | Copy frame pointer to stack pointer. (Release local vars) |
| ATOR | Convert absolute address in X to FP-relative address |
| RTOA | Convert FP-relative address in X to absolute address |
| INC | `X = X+1`. |
| DEC | `X = X-1`. |