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Autosave: 2024-03-11 07:20:03

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thomasabishop 2024-03-11 07:20:03 +00:00
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zk/Machine code.md
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@ -24,8 +24,23 @@ This 32bit line of binary has a series of instructions embedded within it. We
partition each part of the sequence below, from left to right, mapping it to the partition each part of the sequence below, from left to right, mapping it to the
instruction: instruction:
| Binary sequence | Instruction | Action | | Binary sequence | Instruction | Action |
| --------------- | ----------- | ------ | | --------------- | -------------------- | ---------------------------------------- |
| 1110 | | | | 1110 | condition | always execute (unconditional) |
| 00 | | | | 00 | -- | -- |
| 1101 | | | | 1 | immediate | value is in the last 8 bits |
| 1101 | opcode | `mov` : move the value |
| 0 | -- | -- |
| 0000 | -- | -- |
| 0111 | destination register | destinaation is 0111 which corresonds |
| to `r7` |
| 0000 | -- | -- |
| 00000100 | immediate value | the binary representation of decimal '4' |
- The blank values are also instruction points, they are just not used in this
instruction
- The instruction should run in all conditions not only under certain
circumstances
- The immediate bit (`1`) tells us