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-rw-r--r--docs/Bytecode11
1 files changed, 10 insertions, 1 deletions
diff --git a/docs/Bytecode b/docs/Bytecode
index 900b1f9..b4154b5 100644
--- a/docs/Bytecode
+++ b/docs/Bytecode
@@ -1232,6 +1232,15 @@ Opcodes
bits 0-6: 0000000 => auto,
other => rffe.
+6f - writing-mode
+ <value> (14bits) :
+ bits 8-13: MBZ
+ bits 0-7 :
+ 00000000 => horizontal-tb,
+ 00000001 => vertical-rl,
+ 00000010 => vertical-lr,
+ other => Reserved for future expansion.
+
-6f-3ff - Reserved for future expansion.
+70-3ff - Reserved for future expansion.