Re: [PATCH 75/76] target/i386: Wire up MXCSR.DE and FPUS.DE correctly

2025-01-26 Thread Richard Henderson
On 1/24/25 08:28, Peter Maydell wrote: The x86 DE bit in the FPU and MXCSR status is supposed to be set when an input denormal is consumed. We didn't previously report this from softfloat, so the x86 code either simply didn't set the DE bit or else incorrectly wired it up to denormal_flushed, dep

[PATCH 75/76] target/i386: Wire up MXCSR.DE and FPUS.DE correctly

2025-01-24 Thread Peter Maydell
The x86 DE bit in the FPU and MXCSR status is supposed to be set when an input denormal is consumed. We didn't previously report this from softfloat, so the x86 code either simply didn't set the DE bit or else incorrectly wired it up to denormal_flushed, depending on which register you looked at.