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authorAlex Chadwick <Alex.Chadwick@cl.cam.ac.uk>2018-07-24 09:21:44 +0930
committerAlan Modra <amodra@gmail.com>2018-07-26 17:42:47 +0930
commitfa758a70467c37cfe7b261e1dc20d431be3db62e (patch)
treeb2bb47d4a9ab6da95fe2d55e8b9eb4bf9e889a09 /gas/doc/c-ppc.texi
parentb358827438360cb5d04fbc59d594583fb506ba65 (diff)
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PowerPC Improve support for Gekko & Broadway
This is a relatively straightforward patch to improve support for the IBM Gekko and IBM Broadway processors. Broadway is functionally equivalent to the IBM 750CL, while Gekko's functionality is a subset of theirs. The patch simplifies this reality and adds -mgekko and -mbroadway as aliases for -m750cl. I didn't feel it was worth wasting a PPC_OPCODE_* bit to differentiate Gekko. The patch adds a number of simplified mnemonics for special purpose register access. Notably, Broadway adds 4 additional IBAT and DBAT registers but these are not assigned sequential SPR numbers. gas/ * config/tc-ppc.c (md_show_usage): Add -mgekko and -mbroadway. * doc/as.texi (Target PowerPC options): Add -mgekko and -mbroadway. * doc/c-ppc.texi (PowerPC-Opts): Likewise. * testsuite/gas/ppc/broadway.d, * testsuite/gas/ppc/broadway.s: New test for broadway. * testsuite/gas/ppc/ppc.exp: Run new test. include/ * opcode/ppc.h (PPC_OPCODE_750): Adjust comment. opcodes/ * ppc-dis.c (ppc_opts): Add -mgekko and -mbroadway. (powerpc_init_dialect): Handle bfd_mach_ppc_750. * ppc-opc.c (insert_sprbat, extract_sprbat): New functions to support disjointed BAT. (powerpc_operands): Allow extra bit in SPRBAT_MASK. Add SPRGQR. (XSPRGQR_MASK, GEKKO, BROADWAY): Define. (powerpc_opcodes): Add 750cl extended mnemonics for spr access.
Diffstat (limited to 'gas/doc/c-ppc.texi')
-rw-r--r--gas/doc/c-ppc.texi4
1 files changed, 2 insertions, 2 deletions
diff --git a/gas/doc/c-ppc.texi b/gas/doc/c-ppc.texi
index 6f7b0f9..dfab8a6 100644
--- a/gas/doc/c-ppc.texi
+++ b/gas/doc/c-ppc.texi
@@ -72,8 +72,8 @@ Generate code for PowerPC 476.
@item -m7400, -m7410, -m7450, -m7455
Generate code for PowerPC 7400/7410/7450/7455.
-@item -m750cl
-Generate code for PowerPC 750CL.
+@item -m750cl, -mgekko, -mbroadway
+Generate code for PowerPC 750CL/Gekko/Broadway.
@item -m821, -m850, -m860
Generate code for PowerPC 821/850/860.