unicorn/qemu/target
Peter Maydell 7a293cd7cc
target-arm: Simplify insn_crosses_page()
Recent changes have left insn_crosses_page() more complicated
than it needed to be:
* it's only called from thumb_tr_translate_insn() so we know
for certain that we're looking at a Thumb insn
* the caller's check for dc->pc >= dc->next_page_start - 3
means that dc->pc can't possibly be 4 aligned, so there's
no need to check that (the check was partly there to ensure
that we didn't treat an ARM insn as Thumb, I think)
* we now have thumb_insn_is_16bit() which lets us do a precise
check of the length of the next insn, rather than opencoding
an inaccurate check

Simplify it down to just loading the first half of the insn
and calling thumb_insn_is_16bit() on it.

Backports commit 5b8d7289e9e92a0d7bcecb93cd189e245fef10cd from qemu
2018-03-05 03:44:54 -05:00
..
arm target-arm: Simplify insn_crosses_page() 2018-03-05 03:44:54 -05:00
i386 tcg: remove addr argument from lookup_tb_ptr 2018-03-05 02:16:34 -05:00
m68k target/m68k: Switch fpu_rom from make_floatx80() to make_floatx80_init() 2018-03-04 23:05:01 -05:00
mips tcg: remove addr argument from lookup_tb_ptr 2018-03-05 02:16:34 -05:00
sparc sparc: Fix typedef clash 2018-03-04 23:05:50 -05:00