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Author SHA1 Message Date
gdkchan
808803d97a CPU: Fix PC alignment for ADR thumb instruction (#6613)
* Fix PC alignment for ADR thumb instruction

* PPTC version bump
2024-04-07 18:17:49 -03:00
2 changed files with 13 additions and 1 deletions

View File

@@ -19,6 +19,12 @@ namespace ARMeilleure.Instructions
Operand n = GetAluN(context);
Operand m = GetAluM(context, setCarry: false);
if (op.Rn == RegisterAlias.Aarch32Pc && op is OpCodeT32AluImm12)
{
// For ADR, PC is always 4 bytes aligned, even in Thumb mode.
n = context.BitwiseAnd(n, Const(~3u));
}
Operand res = context.Add(n, m);
if (ShouldSetFlags(context))
@@ -467,6 +473,12 @@ namespace ARMeilleure.Instructions
Operand n = GetAluN(context);
Operand m = GetAluM(context, setCarry: false);
if (op.Rn == RegisterAlias.Aarch32Pc && op is OpCodeT32AluImm12)
{
// For ADR, PC is always 4 bytes aligned, even in Thumb mode.
n = context.BitwiseAnd(n, Const(~3u));
}
Operand res = context.Subtract(n, m);
if (ShouldSetFlags(context))

View File

@@ -29,7 +29,7 @@ namespace ARMeilleure.Translation.PTC
private const string OuterHeaderMagicString = "PTCohd\0\0";
private const string InnerHeaderMagicString = "PTCihd\0\0";
private const uint InternalVersion = 5518; //! To be incremented manually for each change to the ARMeilleure project.
private const uint InternalVersion = 6613; //! To be incremented manually for each change to the ARMeilleure project.
private const string ActualDir = "0";
private const string BackupDir = "1";