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Diffstat (limited to 'apps/tile/word.mu')
| -rw-r--r-- | apps/tile/word.mu | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/apps/tile/word.mu b/apps/tile/word.mu index d630b176..e9101eb2 100644 --- a/apps/tile/word.mu +++ b/apps/tile/word.mu @@ -264,6 +264,32 @@ fn print-words-in-reverse screen: (addr screen), _words-ah: (addr handle word) { print-string screen, " " } +fn copy-words _src-ah: (addr handle word), _dest-ah: (addr handle word) { + var src-ah/eax: (addr handle word) <- copy _src-ah + var src-a/eax: (addr word) <- lookup *src-ah + compare src-a, 0 + break-if-= + # copy + var dest-ah/edi: (addr handle word) <- copy _dest-ah + copy-word src-a, dest-ah + # recurse + var next-src-ah/esi: (addr handle word) <- get src-a, next + var dest-a/eax: (addr word) <- lookup *dest-ah + var next-dest-ah/eax: (addr handle word) <- get dest-a, next + copy-words next-src-ah, next-dest-ah +} + +fn copy-word _src-a: (addr word), _dest-ah: (addr handle word) { + var dest-ah/eax: (addr handle word) <- copy _dest-ah + allocate dest-ah + var _dest-a/eax: (addr word) <- lookup *dest-ah + var dest-a/eax: (addr word) <- copy _dest-a + var dest/edi: (addr handle gap-buffer) <- get dest-a, scalar-data + var src-a/eax: (addr word) <- copy _src-a + var src/eax: (addr handle gap-buffer) <- get src-a, scalar-data + copy-gap-buffer src, dest +} + # one implication of handles: append must take a handle fn append-word _self-ah: (addr handle word) { var self-ah/esi: (addr handle word) <- copy _self-ah |