davidcme·3 tahun yang lalu·discussThe physical registers are not managed by the operating system. Instead they are used for out-of order speculation using register renaming: https://en.m.wikipedia.org/wiki/Register_renamingWhat you talk about is not used in the X86 ISA: https://en.m.wikipedia.org/wiki/Register_windowIf PS5 code uses fewer floating point operations than conventional desktop CPUs, there are fewer physical floating point registers needed for an equally sized speculation window.
What you talk about is not used in the X86 ISA: https://en.m.wikipedia.org/wiki/Register_window
If PS5 code uses fewer floating point operations than conventional desktop CPUs, there are fewer physical floating point registers needed for an equally sized speculation window.