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authorLioncash <mathew1800@gmail.com>2015-08-06 19:53:20 -0400
committerLioncash <mathew1800@gmail.com>2015-08-06 19:55:41 -0400
commit59d5358068986fe275a2d96b2b63eff5c04f91e5 (patch)
tree620861d008aa05b9545fec2f908b90a3140a5d25 /src
parent7c7eeb9d34c84ede941a394195bac34c9a4813fd (diff)
arm_disasm: Remove unnecessary code
This part of disassembly only determines the opcode, there's no need for offset calculation here.
Diffstat (limited to 'src')
-rw-r--r--src/core/arm/disassembler/arm_disasm.cpp16
1 files changed, 4 insertions, 12 deletions
diff --git a/src/core/arm/disassembler/arm_disasm.cpp b/src/core/arm/disassembler/arm_disasm.cpp
index f6d44d85..aaf47b3f 100644
--- a/src/core/arm/disassembler/arm_disasm.cpp
+++ b/src/core/arm/disassembler/arm_disasm.cpp
@@ -779,20 +779,12 @@ Opcode ARM_Disasm::Decode10(uint32_t insn) {
return OP_LDM;
return OP_STM;
}
- // Branch or Branch with link
- uint8_t is_link = (insn >> 24) & 1;
- uint32_t offset = insn & 0xffffff;
- // Sign-extend the 24-bit offset
- if ((offset >> 23) & 1)
- offset |= 0xff000000;
+ // Branch with link
+ if ((insn >> 24) & 1)
+ return OP_BL;
- // Pre-compute the left-shift and the prefetch offset
- offset <<= 2;
- offset += 8;
- if (is_link == 0)
- return OP_B;
- return OP_BL;
+ return OP_B;
}
Opcode ARM_Disasm::Decode11(uint32_t insn) {