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authorKartik Agaram <vc@akkartik.com>2021-01-09 18:28:27 -0800
committerKartik Agaram <vc@akkartik.com>2021-01-09 18:29:04 -0800
commit0518944e379f343542c872a20d3d5a2aee744297 (patch)
treec79fa2a0dd3a45c61f835796fb0b5f74f58c23d5 /baremetal/401draw-text-rightward.mu
parent7f8770ae082a723faae89faea0dce6635feb7cdb (diff)
downloadmu-0518944e379f343542c872a20d3d5a2aee744297.tar.gz
7491 - baremetal: draw ASCII text to screen
Diffstat (limited to 'baremetal/401draw-text-rightward.mu')
-rw-r--r--baremetal/401draw-text-rightward.mu16
1 files changed, 16 insertions, 0 deletions
diff --git a/baremetal/401draw-text-rightward.mu b/baremetal/401draw-text-rightward.mu
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+fn draw-text-rightward screen: (addr screen), _text: (addr array byte), x: int, y: int, color: int {
+  var text/esi: (addr array byte) <- copy _text
+  var len/ecx: int <- length text
+  var i/edx: int <- copy 0
+  {
+    compare i, len
+    break-if->=
+    var g/eax: (addr byte) <- index text, i
+    var g2/eax: byte <- copy-byte *g
+    var g3/eax: grapheme <- copy g2
+    draw-grapheme screen, g3, x, y, color
+    add-to x, 8  # font-width
+    i <- increment
+    loop
+  }
+}