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@ -11,7 +11,9 @@ pub fn singleDataTransfer(comptime I: bool, comptime P: bool, comptime U: bool,
const rn = opcode >> 16 & 0xF; const rn = opcode >> 16 & 0xF;
const rd = opcode >> 12 & 0xF; const rd = opcode >> 12 & 0xF;
const base = cpu.r[rn]; // rn is r15 and L is not set, the PC is 12 ahead
const base = cpu.r[rn] + if (!L and rn == 0xF) 4 else @as(u32, 0);
const offset = if (I) shifter.immediate(false, cpu, opcode) else opcode & 0xFFF; const offset = if (I) shifter.immediate(false, cpu, opcode) else opcode & 0xFFF;
const modified_base = if (U) base +% offset else base -% offset; const modified_base = if (U) base +% offset else base -% offset;