Re: [PATCH 37/76] target/arm: Define and use new write_fp_*reg_merging() functions

2025-01-25 Thread Richard Henderson
On 1/24/25 08:27, Peter Maydell wrote: For FEAT_AFP's FPCR.NEP bit, we need to programmatically change the behaviour of the writeback of the result for most SIMD scalar operations, so that instead of zeroing the upper part of the result register it merges the upper elements from one of the input

[PATCH 37/76] target/arm: Define and use new write_fp_*reg_merging() functions

2025-01-24 Thread Peter Maydell
For FEAT_AFP's FPCR.NEP bit, we need to programmatically change the behaviour of the writeback of the result for most SIMD scalar operations, so that instead of zeroing the upper part of the result register it merges the upper elements from one of the input registers. Provide new functions write_f