diff --git a/src/cpu/arm/data_processing.zig b/src/cpu/arm/data_processing.zig index 0370076..5c167d9 100644 --- a/src/cpu/arm/data_processing.zig +++ b/src/cpu/arm/data_processing.zig @@ -23,6 +23,16 @@ pub fn dataProcessing(comptime I: bool, comptime S: bool, comptime instrKind: u4 } switch (instrKind) { + 0x0 => { + const result = op1 & op2; + cpu.r[rd] = result; + + if (S and rd != 0xF) { + cpu.cpsr.n.write(result >> 31 & 1 == 1); + cpu.cpsr.z.write(result == 0); + // C set by Barrel Shifter, V is unaffected + } + }, 0x2 => { // SUB const result = op1 -% op2;