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Diffstat (limited to 'readme.md')
| -rw-r--r-- | readme.md | 18 |
1 files changed, 18 insertions, 0 deletions
@@ -12,6 +12,7 @@ for amd64 linux systems. - `?`: boolean flag ## Glossary + the following is a list of words available in this forth. (neither of these have been implemented yet i'm just putting them here in the meantime lol) ### `dp ( -- a )` @@ -20,3 +21,20 @@ the following is a list of words available in this forth. (neither of these have ### `here ( -- a )` `here` yields the address of the first available byte in user memory. + +## dictionary format + +note that the string length of one byte limits a word's name to 255 characters. + +| field | size | +| :---- | :--- | +| link to previous word | 8 bytes | +| flag field | 1 byte | +| string length | 1 byte | +| string | <256 bytes | +| code | variable length | + +## reserved registers + +the registers `r14` and `r15` are reserved for the parameter stack +and the top of stack respectively. |