libopcodes/ppc: add support for disassembler styling
This commit adds disassembler styling to the libopcodes ppc
disassembler. This conversion was pretty straight forward, I just
converted the fprintf_func calls to fprintf_styled_func calls and
added an appropriate style.
For testing the new styling I just assembled then disassembled the
source files in gas/testsuite/gas/ppc and manually checked that the
styling looked reasonable.
I think the only slightly weird case was how things like '4*cr1+eq'
are styled. As best I can tell, this construct, used for example in
this instruction:
crand 4*cr1+lt,4*cr1+gt,4*cr1+eq
is used to access a field of a control register. I initially tried
styling this whole construct as a register[1], but during review it
was suggested that instead different parts of the text should have
different styles. In this commit I propose styling '4*cr1+lt' like
this:
4 - immediate,
* - text,
cr1 - register
+ - text
lt - sub-mnemonic
If the user does not request styled output from objdump, then there
should be no change in the disassembler output after this commit.
[1] https://sourceware.org/pipermail/binutils/2022-July/121771.html
2 files changed
