6429

Baby steps. I managed to mess up even this tiny refactoring of print-file.mu.
Wish output registers were already checked in calls.

1 files changed, 35 insertions, 0 deletions

diff --git a/apps/browse.mu b/apps/browse.mu
new file mode 100644
index 00000000..0a5c81bd
--- /dev/null
+++ b/apps/browse.mu
@@ -0,0 +1,35 @@
+# render text with word-wrap
+
+fn main args: (addr array (addr array byte)) -> exit-status/ebx: int {
+  var filename/eax: (addr array byte) <- first-arg args
+  var file-contents/ecx: (addr buffered-file) <- load-file filename
+  dump file-contents
+  flush-stdout
+  exit-status <- copy 0
+}
+
+fn first-arg args-on-stack: (addr array (addr array byte)) -> out/eax: (addr array byte) {
+  var args/eax: (addr array (addr array byte)) <- copy args-on-stack
+  var result/eax: (addr addr array byte) <- index args, 1
+  out <- copy *result
+}
+
+fn load-file filename: (addr array byte) -> out/ecx: (addr buffered-file) {
+  var result: (handle buffered-file)
+  {
+    var tmp1/eax: (addr handle buffered-file) <- address result
+    open filename, 0, tmp1
+  }
+  var tmp2/eax: (addr buffered-file) <- lookup result
+  out <- copy tmp2
+}
+
+fn dump in: (addr buffered-file) {
+  {
+    var c/eax: byte <- read-byte-buffered in
+    compare c, 0xffffffff  # EOF marker
+    break-if-=
+    print-byte c
+    loop
+  }
+}