On 7/26/21 10:30 PM, Philippe Mathieu-Daudé wrote:
Per the "MIPS Architecture Extension: nanoMIPS32 DSP TRM" rev 0.04, MULT and MULTU opcodes:The value of ac selects an accumulator numbered from 0 to 3. When ac=0, this refers to the original HI/LO register pair of the MIPS32 architecture. In Release 6 of the MIPS Architecture, accumulators are eliminated from MIPS32. Ensure pre-Release 6 is restricted to HI/LO registers pair. Fixes: 8b3698b2947 ("target/mips: Add emulation of DSP ASE for nanoMIPS - part 4") Signed-off-by: Philippe Mathieu-Daudé<f4...@amsat.org> --- target/mips/tcg/nanomips_translate.c.inc | 6 ++++++ 1 file changed, 6 insertions(+)
Reviewed-by: Richard Henderson <richard.hender...@linaro.org> r~
