From b9779c21847ba69df0e837dabf6bc9e965b533db Mon Sep 17 00:00:00 2001 From: ptitSeb Date: Tue, 23 Mar 2021 09:35:21 +0100 Subject: [DYNAREC] Optimized F2/F3 A5 opcode --- src/dynarec/dynarec_arm64_00.c | 19 +++++++++++-------- 1 file changed, 11 insertions(+), 8 deletions(-) (limited to 'src') diff --git a/src/dynarec/dynarec_arm64_00.c b/src/dynarec/dynarec_arm64_00.c index 776fb3ae..72bb24cf 100755 --- a/src/dynarec/dynarec_arm64_00.c +++ b/src/dynarec/dynarec_arm64_00.c @@ -969,16 +969,19 @@ uintptr_t dynarec64_00(dynarec_arm_t* dyn, uintptr_t addr, uintptr_t ip, int nin case 0xA5: if(rep) { INST_NAME("REP MOVSD"); - TSTw_REG(xRCX, xRCX); - B_NEXT(cEQ); // end of loop - GETDIR(x3, rex.w?8:4); - MARK; - LDRxw_U12(x1, xRSI, 0); - STRxw_U12(x1, xRDI, 0); - ADDx_REG(xRSI, xRSI, x3); - ADDx_REG(xRDI, xRDI, x3); + CBZx_NEXT(xRCX); + TBNZ_MARK2(xFlags, F_DF); + MARK; // Part with DF==0 + LDRxw_S9_postindex(x1, xRSI, rex.w?8:4); + STRxw_S9_postindex(x1, xRDI, rex.w?8:4); SUBx_U12(xRCX, xRCX, 1); CBNZx_MARK(xRCX); + B_NEXT_nocond; + MARK2; // Part with DF==1 + LDRxw_S9_postindex(x1, xRSI, rex.w?-8:-4); + STRxw_S9_postindex(x1, xRDI, rex.w?-8:-4); + SUBx_U12(xRCX, xRCX, 1); + CBNZx_MARK2(xRCX); // done } else { INST_NAME("MOVSD"); -- cgit 1.4.1