From: Carsten Langgaard <carstenl@mips.com>
To: linux-mips@oss.sgi.com
Subject: The FPU emulator doesn't work properly
Date: Tue, 06 Feb 2001 17:07:58 +0100 [thread overview]
Message-ID: <3A80215E.D13FE590@mips.com> (raw)
I think I have send this patch before, but it hasn't got in to the
archive, apparently.
This is needed in order to get the FPU emulator work properly.
Index: arch/mips/kernel/branch.c
===================================================================
RCS file: /home/repository/sw/linux-2.4.0/arch/mips/kernel/branch.c,v
retrieving revision 1.3
diff -u -r1.3 branch.c
--- branch.c 2000/12/05 13:46:12 1.3
+++ branch.c 2001/02/06 15:46:53
@@ -69,7 +69,7 @@
switch (insn.i_format.rt) {
case bltz_op:
case bltzl_op:
- if (regs->regs[insn.i_format.rs] < 0)
+ if ((long)regs->regs[insn.i_format.rs] < 0)
epc = epc + 4 +
(insn.i_format.simmediate << 2);
else
epc += 8;
@@ -78,7 +78,7 @@
case bgez_op:
case bgezl_op:
- if (regs->regs[insn.i_format.rs] >= 0)
+ if ((long)regs->regs[insn.i_format.rs] >= 0)
epc = epc + 4 +
(insn.i_format.simmediate << 2);
else
epc += 8;
@@ -88,7 +88,7 @@
case bltzal_op:
case bltzall_op:
regs->regs[31] = epc + 8;
- if (regs->regs[insn.i_format.rs] < 0)
+ if ((long)regs->regs[insn.i_format.rs] < 0)
epc = epc + 4 +
(insn.i_format.simmediate << 2);
else
epc += 8;
@@ -98,7 +98,7 @@
case bgezal_op:
case bgezall_op:
regs->regs[31] = epc + 8;
- if (regs->regs[insn.i_format.rs] >= 0)
+ if ((long)regs->regs[insn.i_format.rs] >= 0)
epc = epc + 4 +
(insn.i_format.simmediate << 2);
else
epc += 8;
@@ -146,7 +146,7 @@
case blez_op: /* not really i_format */
case blezl_op:
/* rt field assumed to be zero */
- if (regs->regs[insn.i_format.rs] <= 0)
+ if ((long)regs->regs[insn.i_format.rs] <= 0)
epc = epc + 4 + (insn.i_format.simmediate << 2);
else
epc += 8;
@@ -156,7 +156,7 @@
case bgtz_op:
case bgtzl_op:
/* rt field assumed to be zero */
- if (regs->regs[insn.i_format.rs] > 0)
+ if ((long)regs->regs[insn.i_format.rs] > 0)
epc = epc + 4 + (insn.i_format.simmediate << 2);
else
epc += 8;
--
_ _ ____ ___ Carsten Langgaard Mailto:carstenl@mips.com
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next reply other threads:[~2001-02-06 16:08 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-02-06 16:07 Carsten Langgaard [this message]
2001-02-07 7:34 ` The FPU emulator doesn't work properly Ralf Baechle
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