6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2024-12-14 11:32:34 +00:00
Code Issues Projects Releases Wiki Activity

Fixed another assert exposed by fuzzing. Now, the DisassembleVFPLdStMulFrm()

Browse Source 
function checks whether we have a valid submode for VLDM/VSTM (must be either
"ia" or "db") before calling ARM_AM::getAM5Opc(AMSubMode, unsigned char).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101306 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Johnny Chen 2010-04-14 22:37:17 +00:00
parent e7b52526d3
commit d1ec11a850
1 changed files with 6 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
lib/Target/ARM/Disassembler/ARMDisassemblerCore.cpp
View File

@ -1909,6 +1909,12 @@ static bool DisassembleVFPLdStMulFrm(MCInst &MI, unsigned Opcode, uint32_t insn,
// Next comes the AM5 Opcode.
ARM_AM::AMSubMode SubMode = getAMSubModeForBits(getPUBits(insn));
// Must be either "ia" or "db" submode.
if (SubMode != ARM_AM::ia && SubMode != ARM_AM::db) {
errs() << "Illegal addressing mode 5 sub-mode!\n";
return false;
}
unsigned char Imm8 = insn & 0xFF;
MI.addOperand(MCOperand::CreateImm(ARM_AM::getAM5Opc(SubMode, Imm8)));