From: "Edgar E. Iglesias" <edgar.iglesias@gmail.com>
To: qemu-devel@nongnu.org
Subject: [Qemu-devel] [4313] CRIS: Convert divide step to TCG.
Date: Sat, 03 May 2008 21:34:40 +0000 [thread overview]
Message-ID: <E1JsPNQ-0005Fg-RD@cvs.savannah.gnu.org> (raw)
Revision: 4313
http://svn.sv.gnu.org/viewvc/?view=rev&root=qemu&revision=4313
Author: edgar_igl
Date: 2008-05-03 21:34:39 +0000 (Sat, 03 May 2008)
Log Message:
-----------
CRIS: Convert divide step to TCG.
Modified Paths:
--------------
trunk/target-cris/translate.c
Modified: trunk/target-cris/translate.c
===================================================================
--- trunk/target-cris/translate.c 2008-05-03 20:52:26 UTC (rev 4312)
+++ trunk/target-cris/translate.c 2008-05-03 21:34:39 UTC (rev 4313)
@@ -375,6 +375,23 @@
tcg_gen_discard_i32(n);
}
+static void t_gen_cris_dstep(TCGv d, TCGv s)
+{
+ int l1;
+
+ l1 = gen_new_label();
+
+ /*
+ * d <<= 1
+ * if (d >= s)
+ * d -= s;
+ */
+ tcg_gen_shli_tl(d, d, 1);
+ tcg_gen_brcond_tl(TCG_COND_LTU, d, s, l1);
+ tcg_gen_sub_tl(d, d, s);
+ gen_set_label(l1);
+}
+
/* Extended arithmetics on CRIS. */
static inline void t_gen_add_flag(TCGv d, int flag)
{
@@ -725,7 +742,7 @@
}
break;
case CC_OP_DSTEP:
- gen_op_dstep_T0_T1();
+ t_gen_cris_dstep(cpu_T[0], cpu_T[1]);
break;
case CC_OP_BOUND:
{
reply other threads:[~2008-05-03 21:34 UTC|newest]
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