On 6/5/20 11:59 AM, Joseph Myers wrote: > The m68k-specific softfloat code includes a function floatx80_mod that > is extremely similar to floatx80_rem, but computing the remainder > based on truncating the quotient toward zero rather than rounding it > to nearest integer. This is also useful for emulating the x87 fprem > and fprem1 instructions. Change the floatx80_rem implementation into > floatx80_modrem that can perform either operation, with both > floatx80_rem and floatx80_mod as thin wrappers available for all > targets. > > There does not appear to be any use for the _mod operation for other > floating-point formats in QEMU (the only other architectures using > _rem at all are linux-user/arm/nwfpe, for FPA emulation, and openrisc, > for instructions that have been removed in the latest version of the > architecture), so no change is made to the code for other formats. > > Signed-off-by: Joseph Myers <jos...@codesourcery.com> > --- > fpu/softfloat.c | 49 ++++++++++++++++++------ > include/fpu/softfloat.h | 2 + > target/m68k/softfloat.c | 83 ----------------------------------------- > target/m68k/softfloat.h | 1 - > 4 files changed, 40 insertions(+), 95 deletions(-)
Reviewed-by: Richard Henderson <richard.hender...@linaro.org> r~
