From: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
To: qemu-devel@nongnu.org
Cc: rth@twiddle.net
Subject: [Qemu-devel] [PATCH] tcg: Add documentation for missing tcg-ops
Date: Sat, 10 Jan 2015 16:51:48 +0000 [thread overview]
Message-ID: <1420908708-9220-1-git-send-email-kbastian@mail.uni-paderborn.de> (raw)
The documentation for the tcg-ops subfi, extr_i64_i32 and extr32_i64 was still
missing.
Signed-off-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
---
tcg/README | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff --git a/tcg/README b/tcg/README
index a550ff1..ba40023 100644
--- a/tcg/README
+++ b/tcg/README
@@ -179,6 +179,10 @@ t0=t1+t2
t0=t1-t2
+* subfi_i32/i64 t0, const, t1
+
+t0 = const-t1
+
* neg_i32/i64 t0, t1
t0=-t1 (two's complement)
@@ -353,6 +357,14 @@ from t2 (32 bit).
Construct t0 (64-bit) taking the low half from t1 (64 bit) and the high half
from t2 (64 bit).
+* extr_i64_i32 t0, t1, t2
+extracts the low half of t2 (64 bit) into t0 (32 bit) and the high half into
+t1 (32 bit).
+
+* extr32_i64 t0, t1, t2
+extracts the low half of t2 (64 bit) into t0 (64 bit) and the high half into
+t1 (64 bit). Both values are not sign extended.
+
********* Load/Store
* ld_i32/i64 t0, t1, offset
--
2.2.1
next reply other threads:[~2015-01-10 15:51 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-01-10 16:51 Bastian Koppelmann [this message]
2015-01-10 19:37 ` [Qemu-devel] [PATCH] tcg: Add documentation for missing tcg-ops Richard Henderson
2015-01-10 21:15 ` Bastian Koppelmann
2015-01-10 20:50 ` Richard Henderson
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