dyncom: Fix 32-bit ASR shifts for immediates

11 years ago · f7770b83d4
1 changed files with 3 additions and 5 deletions
--- a/src/core/arm/dyncom/arm_dyncom_interpreter.cpp
+++ b/src/core/arm/dyncom/arm_dyncom_interpreter.cpp
@ -176,13 +176,11 @@ unsigned int DPO(ArithmeticShiftRightByImmediate)(arm_processor *cpu, unsigned i
    unsigned int shifter_operand;
    int shift_imm = BITS(sht_oper, 7, 11);
    if (shift_imm == 0) {
-        if (BIT(rm, 31)) {
+        if (BIT(rm, 31) == 0)
            shifter_operand = 0;
-            cpu->shifter_carry_out = BIT(rm, 31);
-        } else {
+        else
            shifter_operand = 0xFFFFFFFF;
-            cpu->shifter_carry_out = BIT(rm, 31);
-        }
+        cpu->shifter_carry_out = BIT(rm, 31);
    } else {
        shifter_operand = static_cast<int>(rm) >> shift_imm;
        cpu->shifter_carry_out = BIT(rm, shift_imm - 1);