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[ARC] Fix decoding of w6 signed short immediate.

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gas/
  Claudiu Zissulescu  <claziss@synopsys.com>

        * testsuite/gas/arc/st.d: Fix test.

opcodes/
  Claudiu Zissulescu  <claziss@synopsys.com>

        * arc-opc.c (extract_w6): Fix extending the sign.
This commit is contained in:
Claudiu Zissulescu
2018-07-23 11:09:43 +02:00
parent 47e6f81c7c
commit 04e65276fa
4 changed files with 14 additions and 2 deletions
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4
gas/ChangeLog
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@ -1,3 +1,7 @@
2018-07-23 Claudiu Zissulescu <claziss@synopsys.com>
* testsuite/gas/arc/st.d: Fix test.
2018-07-23 Claudiu Zissulescu <claziss@synopsys.com> 2018-07-23 Claudiu Zissulescu <claziss@synopsys.com>
* config/tc-arc.c (tokenize_extinsn): Convert to lower case the * config/tc-arc.c (tokenize_extinsn): Convert to lower case the

2
gas/testsuite/gas/arc/st.d
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@ -13,7 +13,7 @@ Disassembly of section .text:
10: 1a02 004c st[hw]+.aw r1,\[r2,2\] 10: 1a02 004c st[hw]+.aw r1,\[r2,2\]
14: 1e00 7040 0000 0384 st r1,\[0x384\] 14: 1e00 7040 0000 0384 st r1,\[0x384\]
1c: 1a00 0003 stb 0,\[r2\] 1c: 1a00 0003 stb 0,\[r2\]
20: 1af8 8e01 st 56,\[r2,-8\] 20: 1af8 8e01 st -8,\[r2,-8\]
24: 1e00 7080 0000 0000 st r2,\[0\] 24: 1e00 7080 0000 0000 st r2,\[0\]
28: R_ARC_32_ME foo 28: R_ARC_32_ME foo
2c: 1a02 0060 st.di r1,\[r2,2\] 2c: 1a02 0060 st.di r1,\[r2,2\]

4
opcodes/ChangeLog
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@ -1,3 +1,7 @@
2018-07-23 Claudiu Zissulescu <claziss@synopsys.com>
* arc-opc.c (extract_w6): Fix extending the sign.
2018-07-23 Claudiu Zissulescu <claziss@synopsys.com> 2018-07-23 Claudiu Zissulescu <claziss@synopsys.com>
* arc-tbl.h (vewt): Allow it for ARC EM family. * arc-tbl.h (vewt): Allow it for ARC EM family.

6
opcodes/arc-opc.c
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@ -651,10 +651,14 @@ static long long
extract_w6 (unsigned long long insn, extract_w6 (unsigned long long insn,
bfd_boolean * invalid ATTRIBUTE_UNUSED) bfd_boolean * invalid ATTRIBUTE_UNUSED)
{ {
unsigned value = 0; int value = 0;
value |= ((insn >> 6) & 0x003f) << 0; value |= ((insn >> 6) & 0x003f) << 0;
/* Extend the sign. */
int signbit = 1 << 5;
value = (value ^ signbit) - signbit;
return value; return value;
} }