github/SVC16
1
1
Fork 0
mirror of https://github.com/JanNeuendorf/SVC16.git synced 2025-06-04 18:45:27 +00:00
Code Issues Packages Projects Releases Wiki Activity

Updated the Readme and removed references to unused arguments (they no longer exist)

Browse Source
This commit is contained in:
jan 2025-01-06 15:20:26 +01:00
parent 38db0518bb
commit b822d11633
2 changed files with 5 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
README.md
View File

@ -122,13 +122,12 @@ If the opcode is greater than 15, ***and the code is run***, the system will abo
> You can have data blobs in the binary that does not correspond with the opcodes.
> This is fine **until and unless** you explicitly try to run this blob of data as code.
If one of the three arguments is not used, it can be set to any value, but it can not be omitted.
When the instruction pointer advances, it does so by four positions.
| Opcode | Name | Advances | Effect |
| ------ | --------- | ---------- | ---------------------------------------------------------------------------- |
| 0 | **Set** | yes | `@arg1=arg2` |
| 0 | **Set** | yes | `if arg3{@arg1=inst_ptr}else{@arg1=arg2}` |
| 1 | **GoTo** | if skipped | `if(not @arg3){inst_ptr=@arg1+arg2}` |
| 2 | **Skip** | if skipped | `if(not @arg3){inst_ptr=inst_ptr+4*arg1-4*arg2}` |
| 3 | **Add** | yes | `@arg3=(@arg1+@arg2)` |
@ -138,8 +137,8 @@ When the instruction pointer advances, it does so by four positions.
| 7 | **Cmp** | yes | `@arg3=(@arg1<@arg2)` as unsigned |
| 8 | **Deref** | yes | `@arg2=@(@arg1+arg3)` |
| 9 | **Ref** | yes | `@(@arg1+arg3)=@arg2` |
| 10 | **Inst** | yes | `@arg1=inst_ptr` |
| 11 | **Print** | yes | Writes `value=@arg1` to `index=@arg2` of buffer `arg3`
| 10 | **Debug** | yes | Provides `arg1,@arg2,@arg3` as debug information |
| 11 | **Print** | yes | Writes `value=@arg1` to `index=@arg2` of buffer `arg3` |
| 12 | **Read** | yes | Copies `index=@arg1` of buffer `arg3` to `@arg2` |
| 13 | **Band** | yes | `@arg3=@arg1&@arg2` |
| 14 | **Xor** | yes | `@arg3=@arg1^@arg2` |

3
specification/specification.typ
View File

@ -158,7 +158,8 @@ All instructions are 4 values long. A value is, of course, a `u16`.
The instructions have the form `opcode` `arg1` `arg2` `arg3`.
All instructions are listed in @instructions.
`@arg1` refers to the value at the memory address `arg1`. If the opcode is greater than 15, the system will abort. If one of the three arguments is not used, it can be set to any value, but it can not be omitted.
`@arg1` refers to the value at the memory address `arg1`.
If the opcode is greater than 15, the system will abort.
#let instruction_table=table(