Mercurial > lcfOS
annotate python/isa/openrisc.lidl @ 283:c9781c73e7e2
Added first kernel files
| author | Windel Bouwman |
|---|---|
| date | Fri, 15 Nov 2013 12:26:50 +0100 |
| parents | |
| children |
| rev | line source |
|---|---|
| 283 | 1 |
| 2 // Openrisc description in lidl (lcfos isa description language) | |
| 3 | |
| 4 // Register storage: | |
| 5 storage r { | |
| 6 width: 32 | |
| 7 size: 32 | |
| 8 } | |
| 9 | |
| 10 | |
| 11 instruction add { | |
| 12 encoding: '111111111DDDDDDAAAAAABBBBBB' | |
| 13 semantics: D = A + B | |
| 14 } | |
| 15 | |
| 16 | |
| 17 // ... | |
| 18 | |
| 19 instruction push { | |
| 20 encoding: '' | |
| 21 semantics: { | |
| 22 sp = X | |
| 23 sp = sp - 4 | |
| 24 } | |
| 25 } | |
| 26 |