https://sourceware.org/bugzilla/show_bug.cgi?id=25517
Bug ID: 25517
Summary: [Z80][PATCH] Use -march=CPU[-EXT][+EXT] instead of lot
of options of GAS
Product: binutils
Version: unspecified
Status: UNCONFIRMED
Severity: enhancement
Priority: P2
Component: gas
Assignee: unassigned at sourceware dot org
Reporter: sergey.belyashov at gmail dot com
Target Milestone: ---
Created attachment 12272
--> https://sourceware.org/bugzilla/attachment.cgi?id=12272&action=edit
Add -march option to GAS
Historically Z80 GAS port uses options -z80, -r800 and similar to select ISA,
and much of -Fins, -Wnud and similar to enable/disable undocumented
instructions. This patch replaces all of them by generic option
-march=CPU[-EXT...][+EXT...]. Where CPU is one of currently supported by Z80
GAS port CPUs (z80, z180, ez80...) and EXT is one or more of extentions and
undocumented instruction mnemonics. For example option -march=Z80-full+sli
selects Z80 CPU, removes support for all undocumented instructions, and adds
support for instruction SLI. It is not same as in i386 port (idea is taken from
there), but little shorter.
Also I remove recently added options -gbz80 and -z80n, which are not in any
release.
All old options are removed from manual and build-in help. But support for them
is kept for backward compatibility. I think, it may be removed after several
years.
All test are updated too.
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