piwalker/dolphin
1
0
Fork 0
mirror of https://github.com/dolphin-emu/dolphin.git synced 2025-07-29 00:59:44 -06:00
Code Issues Packages Projects Releases Wiki Activity

PPCAnalyst: Rework the store-safe logic

Browse Source 
The output of instructions like fabsx and ps_sel is store-safe
if and only if the relevant inputs are. The old code was always
marking the output as store-safe if the output was a single,
and never otherwise.

Also, the old code was treating the output of psq_l/psq_lu as
store-safe, which seems incorrect (if dequantization is disabled).
This commit is contained in:
JosJuice
2021-02-02 20:50:29 +01:00
parent e2b5026652
commit 1845c5948d
4 changed files with 64 additions and 32 deletions
Download Patch File Download Diff File Expand all files Collapse all files

5
Source/Core/Core/PowerPC/PPCTables.h
View File

@ -59,6 +59,11 @@ enum
FL_OUT_FLOAT_D = (1 << 28), // frD is used as a destination.
// Used in the case of double ops (they don't modify the top half of the output)
FL_INOUT_FLOAT_D = FL_IN_FLOAT_D | FL_OUT_FLOAT_D,
FL_IN_FLOAT_A_BITEXACT = (1 << 29), // The output is based on the exact bits in frA.
FL_IN_FLOAT_B_BITEXACT = (1 << 30), // The output is based on the exact bits in frB.
FL_IN_FLOAT_C_BITEXACT = (1 << 31), // The output is based on the exact bits in frC.
FL_IN_FLOAT_AB_BITEXACT = FL_IN_FLOAT_A_BITEXACT | FL_IN_FLOAT_B_BITEXACT,
FL_IN_FLOAT_BC_BITEXACT = FL_IN_FLOAT_B_BITEXACT | FL_IN_FLOAT_C_BITEXACT,
};
enum class OpType