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author | Kartik Agaram <vc@akkartik.com> | 2020-10-25 21:43:18 -0700 |
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committer | Kartik Agaram <vc@akkartik.com> | 2020-10-25 21:43:18 -0700 |
commit | 10d5b13af8cbafe9466426bddd248f6dafb08589 (patch) | |
tree | 31bc3effea2898090f55532276fe5a9c6f6476ef /apps/tile | |
parent | 5f5579e1682fbcea3340a036ef57684cacb835e4 (diff) | |
download | mu-10d5b13af8cbafe9466426bddd248f6dafb08589.tar.gz |
7108 - tile: read from file handle
Diffstat (limited to 'apps/tile')
-rw-r--r-- | apps/tile/rpn.mu | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/apps/tile/rpn.mu b/apps/tile/rpn.mu index c206e997..d4e19a85 100644 --- a/apps/tile/rpn.mu +++ b/apps/tile/rpn.mu @@ -134,6 +134,42 @@ fn evaluate functions: (addr handle function), bindings: (addr table), scratch: copy-handle empty, target-string-ah break $evaluate:process-word } + { + var is-read?/eax: boolean <- stream-data-equal? curr-stream, "read" + compare is-read?, 0 + break-if-= + # pop target-val from out + var out2/esi: (addr value-stack) <- copy out + var top-addr/ecx: (addr int) <- get out2, top + compare *top-addr, 0 + break-if-<= + var data-ah/eax: (addr handle array value) <- get out2, data + var data/eax: (addr array value) <- lookup *data-ah + var top/edx: int <- copy *top-addr + top <- decrement + var dest-offset/edx: (offset value) <- compute-offset data, top + var target-val/edx: (addr value) <- index data, dest-offset + # check target-val is a file + var target-type-addr/eax: (addr int) <- get target-val, type + compare *target-type-addr, 3 # file + break-if-!= + # read a line from the file and save in target-val + # read target-val as a filename and save the handle in target-val + var file-ah/eax: (addr handle buffered-file) <- get target-val, file-data + var file/eax: (addr buffered-file) <- lookup *file-ah + var s: (stream byte 0x100) + var s-addr/ecx: (addr stream byte) <- address s + read-line-buffered file, s-addr + var target/eax: (addr handle array byte) <- get target-val, text-data + stream-to-string s-addr, target + # save result into target-val + var type-addr/eax: (addr int) <- get target-val, type + copy-to *type-addr, 1 # string + var target-file-ah/eax: (addr handle buffered-file) <- get target-val, file-data + var empty: (handle buffered-file) + copy-handle empty, target-file-ah + break $evaluate:process-word + } # if curr-stream defines a binding, save top of stack to bindings { var done?/eax: boolean <- stream-empty? curr-stream |