feat(cpu): implement like 1 THUMB instruction

src/cpu/thumb/format3.zig

@@ -1,32 +0,0 @@
-const std = @import("std");
-
-const Bus = @import("../../Bus.zig");
-const Arm7tdmi = @import("../../cpu.zig").Arm7tdmi;
-const InstrFn = @import("../../cpu.zig").ThumbInstrFn;
-
-pub fn format3(comptime op: u2, comptime rd: u3) InstrFn {
-    return struct {
-        fn inner(cpu: *Arm7tdmi, _: *Bus, opcode: u16) void {
-            const offset = @truncate(u8, opcode);
-
-            switch (op) {
-                0b00 => {
-                    cpu.r[rd] = offset;
-
-                    cpu.cpsr.n.unset();
-                    cpu.cpsr.z.write(offset == 0);
-                    std.debug.panic("TODO: Implement mov R{}, #0x{X:0>2}", .{ rd, offset });
-                },
-                0b01 => {
-                    std.debug.panic("TODO: Implement cmp R{}, #0x{X:0>2}", .{ rd, offset });
-                },
-                0b10 => {
-                    std.debug.panic("TODO: Implement add R{}, #0x{X:0>2}", .{ rd, offset });
-                },
-                0b11 => {
-                    std.debug.panic("TODO: Implement sub R{}, #0x{X:0>2}", .{ rd, offset });
-                },
-            }
-        }
-    }.inner;
-}