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authorMax Filippov <jcmvbkbc@gmail.com>2012-09-21 04:18:07 +0400
committerAurelien Jarno <aurelien@aurel32.net>2012-09-22 15:10:22 +0200
commit9bacf4143190ca57771c8db5981d040f9c625ae5 (patch)
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parentf0da375754666511acefa89b57487a22a2b9f945 (diff)
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tcg/README: document tcg_gen_goto_tb restrictions
See http://lists.nongnu.org/archive/html/qemu-devel/2012-09/msg03196.html for the whole story. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Diffstat (limited to 'tcg/README')
-rw-r--r--tcg/README3
1 files changed, 2 insertions, 1 deletions
diff --git a/tcg/README b/tcg/README
index d03ae05..33783ee 100644
--- a/tcg/README
+++ b/tcg/README
@@ -392,7 +392,8 @@ Exit the current TB and return the value t0 (word type).
Exit the current TB and jump to the TB index 'index' (constant) if the
current TB was linked to this TB. Otherwise execute the next
-instructions.
+instructions. Only indices 0 and 1 are valid and tcg_gen_goto_tb may be issued
+at most once with each slot index per TB.
* qemu_ld8u t0, t1, flags
qemu_ld8s t0, t1, flags