e88a856efd
The documentation says:
SUBV Rm, Rn Rn - Rm -> Rn, underflow -> T
The overflow / underflow can be calculated as:
T = ((Rn ^ Rm) & (Result ^ Rn)) >> 31
However we were using the incorrect:
T = ((Rn ^ Rm) & (Result ^ Rm)) >> 31
Fix by using the Rn register instead of Rm.
Add tests provided by Paul Cercueil.
Cc: qemu-stable@nongnu.org
Fixes:
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|---|---|---|
| .. | ||
| aarch64 | ||
| alpha | ||
| arm | ||
| cris | ||
| hexagon | ||
| hppa | ||
| i386 | ||
| loongarch64 | ||
| m68k | ||
| minilib | ||
| mips | ||
| multiarch | ||
| openrisc | ||
| ppc64 | ||
| ppc64le | ||
| riscv64 | ||
| s390x | ||
| sh4 | ||
| tricore | ||
| x86_64 | ||
| xtensa | ||
| xtensaeb | ||
| Makefile.target | ||
| README | ||
This directory contains various interesting guest programs for regression testing. Tests are either multi-arch, meaning they can be built for all guest architectures that support linux-user executable, or they are architecture specific. CRIS ==== The testsuite for CRIS is in tests/tcg/cris. You can run it with "make test-cris".