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| author | Lioncash <mathew1800@gmail.com> | 2014-12-19 20:05:18 +0100 |
|---|---|---|
| committer | Lioncash <mathew1800@gmail.com> | 2014-12-19 20:09:18 +0100 |
| commit | 4b506cec017dab0244349780b70f53dc762d61f8 (patch) | |
| tree | cb26ffc0e02df607f6954fbf5ea27b53f3bfb3d8 /src/core/arm/interpreter | |
| parent | Merge pull request #302 from purpasmart96/flushshutup (diff) | |
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Diffstat (limited to 'src/core/arm/interpreter')
| -rw-r--r-- | src/core/arm/interpreter/armemu.cpp | 27 |
1 files changed, 20 insertions, 7 deletions
diff --git a/src/core/arm/interpreter/armemu.cpp b/src/core/arm/interpreter/armemu.cpp index 07d205755..bafeb024c 100644 --- a/src/core/arm/interpreter/armemu.cpp +++ b/src/core/arm/interpreter/armemu.cpp @@ -5885,8 +5885,10 @@ L_stm_s_takeabort: printf("Unhandled v6 insn: %08x", BITS(20, 27)); } break; - case 0x62: // QSUB16 and QADD16 - if ((instr & 0xFF0) == 0xf70 || (instr & 0xFF0) == 0xf10) { + case 0x62: // QADD16, QASX, QSAX, and QSUB16 + if ((instr & 0xFF0) == 0xf10 || (instr & 0xFF0) == 0xf30 || + (instr & 0xFF0) == 0xf50 || (instr & 0xFF0) == 0xf70) + { const u8 rd_idx = BITS(12, 15); const u8 rn_idx = BITS(16, 19); const u8 rm_idx = BITS(0, 3); @@ -5898,15 +5900,26 @@ L_stm_s_takeabort: s32 lo_result; s32 hi_result; + // QADD16 + if ((instr & 0xFF0) == 0xf10) { + lo_result = (rn_lo + rm_lo); + hi_result = (rn_hi + rm_hi); + } + // QASX + else if ((instr & 0xFF0) == 0xf30) { + lo_result = (rn_lo - rm_hi); + hi_result = (rn_hi + rm_lo); + } + // QSAX + else if ((instr & 0xFF0) == 0xf50) { + lo_result = (rn_lo + rm_hi); + hi_result = (rn_hi - rm_lo); + } // QSUB16 - if ((instr & 0xFF0) == 0xf70) { + else { lo_result = (rn_lo - rm_lo); hi_result = (rn_hi - rm_hi); } - else { // QADD16 - lo_result = (rn_lo + rm_lo); - hi_result = (rn_hi + rm_hi); - } if (lo_result > 0x7FFF) lo_result = 0x7FFF; |