On 5/29/21 9:54 AM, Philippe Mathieu-Daudé wrote:
Per the "MIPS® DSP Module for MIPS64 Architecture" manual, rev. 3.02, Table 5.3 "SPECIAL3 Encoding of Function Field for DSP Module":If the Module/ASE is not implemented, executing such an instruction must cause a Reserved Instruction Exception. The DINSV instruction lists the following exceptions: - Reserved Instruction - DSP Disabled If the MIPS core doesn't support the DSP module, or the DSP is disabled, do not handle the '$rt = $0' case as a no-op but raise the proper exception instead. Cc: Jia Liu<pro...@gmail.com> Fixes: 1cb6686cf92 ("target-mips: Add ASE DSP bit/manipulation instructions") Signed-off-by: Philippe Mathieu-Daudé<f4...@amsat.org> --- target/mips/tcg/translate.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
Reviewed-by: Richard Henderson <richard.hender...@linaro.org> r~
