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Diffstat (limited to 'docs/USAGE.md')
| -rw-r--r-- | docs/USAGE.md | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/docs/USAGE.md b/docs/USAGE.md index 379d82dd..eb94ff18 100644 --- a/docs/USAGE.md +++ b/docs/USAGE.md @@ -169,9 +169,14 @@ Define Box64's Dynarec max allowed forward value when building Block. #### BOX64_DYNAREC_STRONGMEM * Enable/Disable simulation of Strong Memory model * 0 : Don't try anything special (Default.) -* 1 : Enable some Memory Barrier when writting to memory (on some MOV opcode) to simulate Strong Memory Model while trying to limit performance impact (Default when libmonobdwgc-2.0.so is loaded) -* 2 : All 1. plus a memory barrier on every write to memory using MOV -* 3 : All 2. plus Memory Barrier when reading from memory and on some SSE/SSE2 opcodes too +* 1 : Enable some memory barriers when writting to memory to simulate the Strong Memory Model in a limited way (Default when libmonobdwgc-2.0.so is loaded) +* 2 : All 1. plus memory barriers on SIMD instructions +* 3 : All 2. plus more memory barriers on a regular basis + +#### BOX64_DYNAREC_WEAKBARRIER * +Use weak memory barriers to reduce the performance impact by STRONGMEM +* 0 : Use regular safe barrier (Default.) +* 1 : Use weak barriers to have more performance boost #### BOX64_DYNAREC_X87DOUBLE * Force the use of Double for x87 emulation |