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74 lines
2.1 KiB
74 lines
2.1 KiB
6 years ago
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commit 8514e4db84ccafaf3be07e842be2fa2001ba876e
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Author: Alan Modra <amodra@gmail.com>
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Date: Fri Nov 28 13:21:52 2014 +1030
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Don't deprecate powerpc mftb insn
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mftb is marked phased out in the architecture manual, but we can keep
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it as an extended mnemonic for mftbl.
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* ppc-opc.c (powerpc_opcodes <mftb>): Don't deprecate for power7.
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(TB): Delete.
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(insert_tbr, extract_tbr): Validate tbr number.
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### a/opcodes/ChangeLog
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### b/opcodes/ChangeLog
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## -1,3 +1,9 @@
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+2014-11-28 Alan Modra <amodra@gmail.com>
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+
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+ * ppc-opc.c (powerpc_opcodes <mftb>): Don't deprecate for power7.
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+ (TB): Delete.
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+ (insert_tbr, extract_tbr): Validate tbr number.
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+
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2014-11-24 H.J. Lu <hongjiu.lu@intel.com>
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* configure: Regenerated.
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--- a/opcodes/ppc-opc.c
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+++ b/opcodes/ppc-opc.c
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@@ -1872,28 +1872,30 @@ extract_sprg (unsigned long insn,
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much, since the architecture manual does not define mftb as
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accepting any values other than 268 or 269. */
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-#define TB (268)
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-
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static unsigned long
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insert_tbr (unsigned long insn,
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long value,
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ppc_cpu_t dialect ATTRIBUTE_UNUSED,
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- const char **errmsg ATTRIBUTE_UNUSED)
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+ const char **errmsg)
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{
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if (value == 0)
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- value = TB;
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+ value = 268;
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+ if (value != 268 && value != 269)
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+ *errmsg = _("invalid tbr number");
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return insn | ((value & 0x1f) << 16) | ((value & 0x3e0) << 6);
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}
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static long
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extract_tbr (unsigned long insn,
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ppc_cpu_t dialect ATTRIBUTE_UNUSED,
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- int *invalid ATTRIBUTE_UNUSED)
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+ int *invalid)
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{
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long ret;
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ret = ((insn >> 16) & 0x1f) | ((insn >> 6) & 0x3e0);
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- if (ret == TB)
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+ if (ret != 268 && ret != 269)
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+ *invalid = 1;
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+ if (ret == 268)
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ret = 0;
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return ret;
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}
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@@ -5051,7 +5053,7 @@ const struct powerpc_opcode powerpc_opcodes[] = {
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{"mftbl", XSPR(31,371,268), XSPR_MASK, PPC, NO371, {RT}},
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{"mftbu", XSPR(31,371,269), XSPR_MASK, PPC, NO371, {RT}},
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-{"mftb", X(31,371), X_MASK, PPC|PPCA2, NO371|POWER7, {RT, TBR}},
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+{"mftb", X(31,371), X_MASK, PPC|PPCA2, NO371, {RT, TBR}},
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{"lwaux", X(31,373), X_MASK, PPC64|PPCVLE, PPCNONE, {RT, RAL, RB}},
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