SPARC %fsr instruction bug in gas & gdb

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Article #10104

#10104

From: Alexander Dupuy
Date: Thu, 10 May 1990 17:59

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When I used gcc/gas to compile the program recently posted to Sun-Spots to
determine SPARC FPU version, I got an Illegal Instruction abort.  Running gdb
disassemble on the code showed nothing abnormal, but when I disassembled the
code generated by the Sun assembler, there was one discrepancy; the instuction

	st      %fsr,[%sp+64]	! assembled by Sun as

was reported by gdb as "unimp 0xffaea6fc".  Sun adb didn't recognize the
instruction assembled by gas; the hex dump of the instruction was 0xc113a040.
So it seems both gas and gdb have the incorrect format for this instruction.

@alex
--
inet: dupuy@cs.columbia.edu
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From: dupuy@HUDSON.CS.COLUMBIA.EDU (Alexander Dupuy)
Newsgroups: gnu.gdb.bug
Subject: SPARC %fsr instruction bug in gas & gdb
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Date: 10 May 90 17:59:34 GMT
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Posted: Thu May 10 18:59:34 1990