From d5bcddb77c9922f8345dd4014031662ab17e2b33 Mon Sep 17 00:00:00 2001 From: Lioncash Date: Tue, 16 Dec 2014 02:03:48 -0500 Subject: armemu: Fix SMUAD, SMUSD, and SMLAD Wrong values were being multiplied together. --- src/core/arm/interpreter/armemu.cpp | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/src/core/arm/interpreter/armemu.cpp b/src/core/arm/interpreter/armemu.cpp index 967506f45..e4159ceb0 100644 --- a/src/core/arm/interpreter/armemu.cpp +++ b/src/core/arm/interpreter/armemu.cpp @@ -6243,16 +6243,16 @@ L_stm_s_takeabort: // SMUAD if ((instr & 0xf0d0) == 0xf010) { - state->Reg[rd_idx] = (rn_lo * rn_hi) + (rm_lo * rm_hi); + state->Reg[rd_idx] = (rn_lo * rm_lo) + (rn_hi * rm_hi); } // SMUSD else if ((instr & 0xf0d0) == 0xf050) { - state->Reg[rd_idx] = (rn_lo * rn_hi) - (rm_lo * rm_hi); + state->Reg[rd_idx] = (rn_lo * rm_lo) - (rn_hi * rm_hi); } // SMLAD else { const u8 ra_idx = BITS(12, 15); - state->Reg[rd_idx] = (rn_lo * rn_hi) + (rm_lo * rm_hi) + (s32)state->Reg[ra_idx]; + state->Reg[rd_idx] = (rn_lo * rm_lo) + (rn_hi * rm_hi) + (s32)state->Reg[ra_idx]; } return 1; } else { -- cgit v1.2.3