From: Stafford Horne <shorne@gmail.com>
To: GDB patches <gdb-patches@sourceware.org>
Cc: Openrisc <openrisc@lists.librecores.org>,
Mike Frysinger <vapier@gentoo.org>,
Peter Gavin <pgavin@gmail.com>
Subject: [PATCH v4 2/5] sim: cgen: add MUL2OFSI and MUL1OFSI macros (needed for OR1K l.mul[u])
Date: Mon, 29 May 2017 14:47:00 -0000 [thread overview]
Message-ID: <700407e5797b8b9b9f76b2dba026d1b06978987b.1496066478.git.shorne@gmail.com> (raw)
In-Reply-To: <cover.1496066478.git.shorne@gmail.com>
In-Reply-To: <cover.1496066478.git.shorne@gmail.com>
From: Peter Gavin <pgavin@gmail.com>
sim/common/ChangeLog:
2012-03-14 Peter Gavin <pgavin@gmail.com>
* cgen-ops.h (MUL2OFSI): New macro, 1's complement.
(MUL1OFSI): New macro, 2's complement.
---
sim/common/cgen-ops.h | 18 ++++++++++++++++++
1 file changed, 18 insertions(+)
diff --git a/sim/common/cgen-ops.h b/sim/common/cgen-ops.h
index 97585d7..ffbdf3f 100644
--- a/sim/common/cgen-ops.h
+++ b/sim/common/cgen-ops.h
@@ -631,6 +631,22 @@ SUBOFQI (QI a, QI b, BI c)
return res;
}
+SEMOPS_INLINE BI
+MUL2OFSI (SI a, SI b)
+{
+ DI tmp = MULDI (EXTSIDI(a), EXTSIDI(b));
+ BI res = tmp < -0x80000000LL || tmp > 0x7fffffffLL;
+ return res;
+}
+
+SEMOPS_INLINE BI
+MUL1OFSI (USI a, USI b)
+{
+ UDI tmp = MULDI (ZEXTSIDI(a), ZEXTSIDI(b));
+ BI res = (tmp > 0xFFFFFFFFULL);
+ return res;
+}
+
#else
SI ADDCSI (SI, SI, BI);
@@ -651,6 +667,8 @@ UBI ADDOFQI (QI, QI, BI);
QI SUBCQI (QI, QI, BI);
UBI SUBCFQI (QI, QI, BI);
UBI SUBOFQI (QI, QI, BI);
+BI MUL1OFSI (SI a, SI b);
+BI MUL2OFSI (SI a, SI b);
#endif
--
2.9.4
next prev parent reply other threads:[~2017-05-29 14:47 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-05-29 14:47 [PATCH v4 0/5] sim port for OpenRISC Stafford Horne
2017-05-29 14:47 ` [PATCH v4 1/5] sim: cgen: add remainder functions (needed for OR1K lf.rem.[sd]) Stafford Horne
2017-08-31 21:11 ` Simon Marchi
2017-08-31 22:33 ` Stafford Horne
2017-09-01 7:57 ` Simon Marchi
2017-09-01 8:29 ` Stafford Horne
2017-05-29 14:47 ` Stafford Horne [this message]
2017-09-04 20:32 ` [PATCH v4 2/5] sim: cgen: add MUL2OFSI and MUL1OFSI macros (needed for OR1K l.mul[u]) Simon Marchi
2017-09-04 21:05 ` Stafford Horne
2017-05-29 14:48 ` [PATCH v4 3/5] sim: or1k: add or1k target to sim Stafford Horne
2017-09-04 21:14 ` Simon Marchi
2017-09-04 21:49 ` Stafford Horne
2017-09-05 18:53 ` Simon Marchi
2017-05-29 14:49 ` [PATCH v4 5/5] sim: testsuite: add testsuite for or1k sim Stafford Horne
2017-06-13 10:15 ` [PATCH v4 0/5] sim port for OpenRISC Stafford Horne
2017-08-10 13:22 ` Stafford Horne
2017-08-23 6:29 ` Stafford Horne
2017-08-31 19:57 ` Simon Marchi
2017-08-31 21:58 ` Stafford Horne
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