diff --git a/.gitignore b/.gitignore
index eadd635..b07584b 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,4 +1,5 @@
 /target
+/notes/*.json
 
 # Test ROMs
 /roms
diff --git a/notes/References.md b/notes/References.md
new file mode 100644
index 0000000..47a134d
--- /dev/null
+++ b/notes/References.md
@@ -0,0 +1,11 @@
+# References
+
+## SM83 Instruction Set
+- https://gbdev.io/gb-opcodes//optables/darkoctal
+- https://rgbds.gbdev.io/docs/v0.7.0/gbz80.7
+
+## CPU internals, timings
+- https://gist.github.com/SonoSooS/c0055300670d678b5ae8433e20bea595
+
+## Hardware, memory map
+- https://gbdev.io/pandocs/
diff --git a/notes/instruction_set.md b/notes/instruction_set.md
new file mode 100644
index 0000000..27b01cd
--- /dev/null
+++ b/notes/instruction_set.md
@@ -0,0 +1,126 @@
+# Instruction Encodings
+| Mnemonic   | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
+|------------|---|---|---|---|---|---|---|---|
+|r8          |   |   | x | x | x |   |   |   |
+|r8(alt)     |   |   |   |   |   | x | x | x |
+|r16         |   |   | x | x |   |   |   |   |
+|r16stk      |   |   | x | x |   |   |   |   |
+|r16mem      |   |   | x | x |   |   |   |   |
+|cond        |   |   |   | x | x |   |   |   |
+|b3          |   |   | x | x | x |   |   |   |
+|tgt3        |   |   | x | x | x |   |   |   |
+|u8          |   |   |   |   |   |   |   |   |
+|imm16       |   |   |   |   |   |   |   |   |
+
+# Block 1 : Uncategorized
+ 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | Mnemonic
+---|---|---|---|---|---|---|---|----------
+   |   |   |   |   |   |   |   | `nop`
+   |   |   | 1 | 1 |   |   |   | `jr u8`
+   |   | 1 | C | C |   |   |   | `jr cond(C), u8`
+
+ 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | Mnemonic
+---|---|---|---|---|---|---|---|----------
+   |   |   |   | 1 |   |   |   |
+   |   |   | 1 |   |   |   |   | 
+   |   |   | 1 | 1 |   |   |   | 
+   |   | 1 |   |   |   |   |   | 
+   |   | 1 |   | 1 |   |   |   | 
+   |   | 1 | 1 |   |   |   |   | 
+   |   | 1 | 1 | 1 |   |   |   | 
+
+# Block 1: 8-bit r2r loads
+ 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | Mnemonic
+---|---|---|---|---|---|---|---|----------
+   | 1 | 1 | 1 |   | 1 | 1 |   | `halt`
+   | 1 | D | D | D | S | S | S | `ld rD, rS`
+
+# Block 2: 8-bit arithmetic
+ 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | Mnemonic
+---|---|---|---|---|---|---|---|----------
+ 1 |   |   |   |   |`R`|`R`|`R`| `add a, R`
+ 1 |   |   |   | 1 |`R`|`R`|`R`| `adc a, R`
+ 1 |   |   | 1 |   |`R`|`R`|`R`| `sub a, R`
+ 1 |   |   | 1 | 1 |`R`|`R`|`R`| `sbc a, R`
+ 1 |   | 1 |   |   |`R`|`R`|`R`| `and a, R`
+ 1 |   | 1 |   | 1 |`R`|`R`|`R`| `or  a, R`
+ 1 |   | 1 | 1 |   |`R`|`R`|`R`| `xor a, R`
+ 1 |   | 1 | 1 | 1 |`R`|`R`|`R`| `cp  a, R`
+
+# Block 3: Etc.
+## Table 0
+ 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | Mnemonic
+---|---|---|---|---|---|---|---|----------
+ 1 | 1 |   | C | C |   |   |   | `ret cond(C)`
+ 1 | 1 | 1 |   |   |   |   |   | `ldh [ff00 + u8], a`
+ 1 | 1 | 1 |   | 1 |   |   |   | `add sp, u8`
+ 1 | 1 | 1 | 1 |   |   |   |   | `ldh a, [ff00 + u8]`
+ 1 | 1 | 1 | 1 | 1 |   |   |   | `ldh HL, [c]`
+## Table 1
+ 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | Mnemonic
+---|---|---|---|---|---|---|---|----------
+ 1 | 1 |`R`|`R`|   |   |   | 1 | `pop r16stk(R)`
+ 1 | 1 |   |   | 1 |   |   | 1 | `ret`
+ 1 | 1 |   | 1 | 1 |   |   | 1 | `reti`
+ 1 | 1 | 1 |   | 1 |   |   | 1 | `jp hl`
+ 1 | 1 | 1 | 1 | 1 |   |   | 1 | `ld sp, hl`
+## Table 2
+ 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | Mnemonic
+---|---|---|---|---|---|---|---|----------
+ 1 | 1 |   |`C`|`C`|   | 1 |   | `jp cond(C), imm16`
+ 1 | 1 | 1 |   |   |   | 1 |   | `ld [c], a`
+ 1 | 1 | 1 |   | 1 |   | 1 |   | `ld [imm16], a`
+ 1 | 1 | 1 | 1 |   |   | 1 |   | `ld a, [c]`
+ 1 | 1 | 1 | 1 | 1 |   | 1 |   | `ld a, [imm16]`
+## Table 3
+ 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | Mnemonic
+---|---|---|---|---|---|---|---|----------
+ 1 | 1 |   |   |   |   | 1 | 1 | `jp imm16`
+ 1 | 1 |   |   | 1 |   | 1 | 1 | Prefix  xCB
+   |   |   |   |   |   |   |   | ... Invalid (No opcode fetch)
+ 1 | 1 | 1 | 1 |   |   | 1 | 1 | `di`
+ 1 | 1 | 1 | 1 | 1 |   | 1 | 1 | `ei`
+## Table 4
+ 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | Mnemonic
+---|---|---|---|---|---|---|---|----------
+ 1 | 1 |   |`C`|`C`| 1 |   |   | `call cond(C), imm16`
+ 1 | 1 | 1 | X | Y | 1 |   |   | Invalid (No opcode fetch)
+## Table 5
+ 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | Mnemonic
+---|---|---|---|---|---|---|---|----------
+ 1 | 1 |`R`|`R`|   | 1 |   | 1 | `push r16stk(R)`
+ 1 | 1 |   |   | 1 | 1 |   | 1 | `call imm16`
+ 1 | 1 | X | Y | 1 | 1 |   | 1 | if X | Y: Invalid (No opcode fetch)
+## Table 6: Arithmetic with 8-bit immediate
+ 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | Mnemonic
+---|---|---|---|---|---|---|---|----------
+ 1 | 1 |   |   |   | 1 | 1 |   | `add a, u8`
+ 1 | 1 |   |   | 1 | 1 | 1 |   | `adc a, u8`
+ 1 | 1 |   | 1 |   | 1 | 1 |   | `sub a, u8`
+ 1 | 1 |   | 1 | 1 | 1 | 1 |   | `sbc a, u8`
+ 1 | 1 | 1 |   |   | 1 | 1 |   | `and a, u8`
+ 1 | 1 | 1 |   | 1 | 1 | 1 |   | `xor a, u8`
+ 1 | 1 | 1 | 1 |   | 1 | 1 |   | `or  a, u8`
+ 1 | 1 | 1 | 1 | 1 | 1 | 1 |   | `cp  a, u8`
+## Table 7: Reset vectors
+ 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | Mnemonic
+---|---|---|---|---|---|---|---|----------
+ 1 | 1 |`T`|`T`|`T`| 1 | 1 | 1 | `rst (T * 8)`
+
+# CB-prefix instructions:
+ 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | Mnemonic
+---|---|---|---|---|---|---|---|----------
+   |   |   |   |   | R | R | R | `rlc  R`
+   |   |   |   | 1 | R | R | R | `rrc  R`
+   |   |   | 1 |   | R | R | R | `rl   R`
+   |   |   | 1 | 1 | R | R | R | `rr   R`
+   |   | 1 |   |   | R | R | R | `sla  R`
+   |   | 1 |   | 1 | R | R | R | `sra  R`
+   |   | 1 | 1 |   | R | R | R | `swap R`
+   |   | 1 | 1 | 1 | R | R | R | `srl  R`
+
+ 7 | 6 | 5 | 4 | 3 | 2 | 1 |   | Mnemonic
+---|---|---|---|---|---|---|---|----------
+   | 1 | i | i | i | R | R | R | `bit i, R`
+ 1 |   | i | i | i | R | R | R | `res i, R`
+ 1 | 1 | i | i | i | R | R | R | `set i, R`
diff --git a/notes/todo_insn_decode.md b/notes/todo_insn_decode.md
new file mode 100644
index 0000000..57f42f3
--- /dev/null
+++ b/notes/todo_insn_decode.md
@@ -0,0 +1,272 @@
+```rust
+    // TODO: Do this instead of instruction decode
+    #[allow(unused)]
+    #[rustfmt::skip]
+    pub const INS: [fn(&mut CPU, &mut dyn BusIO) -> IResult; 256] = [
+        |cpu, _bus| cpu.nop(), // 000 nop
+        |_cpu, _bus| Ok(()),   // 001 ld bc, n16
+        |_cpu, _bus| Ok(()),   // 002 ld [bc], a
+        |_cpu, _bus| Ok(()),   // 003 inc bc
+        |_cpu, _bus| Ok(()),   // 004 inc b
+        |_cpu, _bus| Ok(()),   // 005 dec b
+        |_cpu, _bus| Ok(()),   // 006 ld b,n8
+        |_cpu, _bus| Ok(()),   // 007 rlca
+        |_cpu, _bus| Ok(()),   // 010 ld [a16], sp
+        |_cpu, _bus| Ok(()),   // 011 add hl, bc
+        |_cpu, _bus| Ok(()),   // 012 ld a, [bc]
+        |_cpu, _bus| Ok(()),   // 013 dec bc
+        |_cpu, _bus| Ok(()),   // 014 inc c
+        |_cpu, _bus| Ok(()),   // 015 dec c
+        |_cpu, _bus| Ok(()),   // 016 ld c, n8
+        |_cpu, _bus| Ok(()),   // 017 rrca
+        |_cpu, _bus| Ok(()),   // 020 stop n8
+        |_cpu, _bus| Ok(()),   // 021 ld de, n16
+        |_cpu, _bus| Ok(()),   // 022 ld [de], a
+        |_cpu, _bus| Ok(()),   // 023 inc de
+        |_cpu, _bus| Ok(()),   // 024 inc d
+        |_cpu, _bus| Ok(()),   // 025 dec d
+        |_cpu, _bus| Ok(()),   // 026 ld d, n8
+        |_cpu, _bus| Ok(()),   // 027 rla
+        |_cpu, _bus| Ok(()),   // 030 jr e8
+        |_cpu, _bus| Ok(()),   // 031 add hl, de
+        |_cpu, _bus| Ok(()),   // 032 ld a, [de]
+        |_cpu, _bus| Ok(()),   // 033 dec de
+        |_cpu, _bus| Ok(()),   // 034 inc e
+        |_cpu, _bus| Ok(()),   // 035 dec e
+        |_cpu, _bus| Ok(()),   // 036 ld e, n8
+        |_cpu, _bus| Ok(()),   // 037 rra
+        |_cpu, _bus| Ok(()),   // 040 jr nz, e8
+        |_cpu, _bus| Ok(()),   // 041 ld hl, n16
+        |_cpu, _bus| Ok(()),   // 042 ld [hl+], a
+        |_cpu, _bus| Ok(()),   // 043 inc hl
+        |_cpu, _bus| Ok(()),   // 044 inc h
+        |_cpu, _bus| Ok(()),   // 045 dec h
+        |_cpu, _bus| Ok(()),   // 046 ld h, n8
+        |_cpu, _bus| Ok(()),   // 047 daa
+        |_cpu, _bus| Ok(()),   // 050 jr z, e8
+        |_cpu, _bus| Ok(()),   // 051 add hl, hl
+        |_cpu, _bus| Ok(()),   // 052 ld a [hl+]
+        |_cpu, _bus| Ok(()),   // 053 dec hl
+        |_cpu, _bus| Ok(()),   // 054 inc l
+        |_cpu, _bus| Ok(()),   // 055 dec l
+        |_cpu, _bus| Ok(()),   // 056 ld l, n8
+        |_cpu, _bus| Ok(()),   // 057 cpl
+        |_cpu, _bus| Ok(()),   // 060 jr nc, e8
+        |_cpu, _bus| Ok(()),   // 061 ld sp, n16
+        |_cpu, _bus| Ok(()),   // 062 ld [hl-], a
+        |_cpu, _bus| Ok(()),   // 063 inc sp
+        |_cpu, _bus| Ok(()),   // 064 inc [hl]
+        |_cpu, _bus| Ok(()),   // 065 dec [hl]
+        |_cpu, _bus| Ok(()),   // 066 ld [hl], n8
+        |_cpu, _bus| Ok(()),   // 067 scf
+        |_cpu, _bus| Ok(()),   // 070 jr c, e8
+        |_cpu, _bus| Ok(()),   // 071 add hl, sp
+        |_cpu, _bus| Ok(()),   // 072 ld a, [hl-]
+        |_cpu, _bus| Ok(()),   // 073 dec sp
+        |_cpu, _bus| Ok(()),   // 074 inc a
+        |_cpu, _bus| Ok(()),   // 075 dec a
+        |_cpu, _bus| Ok(()),   // 076 ld a, n8
+        |_cpu, _bus| Ok(()),   // 077 ccf
+
+        |_cpu, _bus| Ok(()),                             // 100 ld b, b
+        |cpu, _bus| { cpu[R8::B] = cpu[R8::C]; Ok(()) }, // 101 ld b, c
+        |cpu, _bus| { cpu[R8::B] = cpu[R8::D]; Ok(()) }, // 102 ld b, d
+        |cpu, _bus| { cpu[R8::B] = cpu[R8::E]; Ok(()) }, // 103 ld b, e
+        |cpu, _bus| { cpu[R8::B] = cpu[R8::H]; Ok(()) }, // 104 ld b, h
+        |cpu, _bus| { cpu[R8::B] = cpu[R8::L]; Ok(()) }, // 105 ld b, l
+        |_cpu, _bus| Ok(()),                             // 106 ld b, [hl]
+        |cpu, _bus| { cpu[R8::B] = cpu[R8::A]; Ok(()) }, // 107 ld b, a
+        |cpu, _bus| { cpu[R8::C] = cpu[R8::B]; Ok(()) }, // 110 ld c, b
+        |_cpu, _bus| Ok(()),                             // 111 ld c, c
+        |cpu, _bus| { cpu[R8::C] = cpu[R8::D]; Ok(()) }, // 112 ld c, d
+        |cpu, _bus| { cpu[R8::C] = cpu[R8::E]; Ok(()) }, // 113 ld c, e
+        |cpu, _bus| { cpu[R8::C] = cpu[R8::H]; Ok(()) }, // 114 ld c, h
+        |cpu, _bus| { cpu[R8::C] = cpu[R8::L]; Ok(()) }, // 115 ld c, l 
+        |_cpu, _bus| Ok(()),                             // 116 ld c, [hl] 
+        |cpu, _bus| { cpu[R8::C] = cpu[R8::A]; Ok(()) }, // 117 ld c, a 
+        |cpu, _bus| { cpu[R8::D] = cpu[R8::B]; Ok(()) }, // 120 ld d, b 
+        |cpu, _bus| { cpu[R8::D] = cpu[R8::C]; Ok(()) }, // 121 ld d, c 
+        |_cpu, _bus| Ok(()),                             // 122 ld d, d 
+        |cpu, _bus| { cpu[R8::D] = cpu[R8::E]; Ok(()) }, // 123 ld d, e 
+        |cpu, _bus| { cpu[R8::D] = cpu[R8::H]; Ok(()) }, // 124 ld d, h 
+        |cpu, _bus| { cpu[R8::D] = cpu[R8::L]; Ok(()) }, // 125 ld d, l 
+        |_cpu, _bus| Ok(()),                             // 126 ld d, [hl] 
+        |cpu, _bus| { cpu[R8::D] = cpu[R8::A]; Ok(()) }, // 127 ld d, a 
+        |cpu, _bus| { cpu[R8::E] = cpu[R8::B]; Ok(()) }, // 130 ld e, b 
+        |cpu, _bus| { cpu[R8::E] = cpu[R8::C]; Ok(()) }, // 131 ld e, c 
+        |cpu, _bus| { cpu[R8::E] = cpu[R8::D]; Ok(()) }, // 132 ld e, d 
+        |_cpu, _bus| Ok(()),                             // 133 ld e, e
+        |cpu, _bus| { cpu[R8::E] = cpu[R8::H]; Ok(()) }, // 134 ld e, h
+        |cpu, _bus| { cpu[R8::E] = cpu[R8::L]; Ok(()) }, // 135 ld e, l
+        |_cpu, _bus| Ok(()),                             // 136 ld e, [hl]
+        |cpu, _bus| { cpu[R8::E] = cpu[R8::A]; Ok(()) }, // 137 ld e, a
+        |cpu, _bus| { cpu[R8::H] = cpu[R8::B]; Ok(()) }, // 140 ld h, b
+        |cpu, _bus| { cpu[R8::H] = cpu[R8::C]; Ok(()) }, // 141 ld h, c
+        |cpu, _bus| { cpu[R8::H] = cpu[R8::D]; Ok(()) }, // 142 ld h, d
+        |cpu, _bus| { cpu[R8::H] = cpu[R8::E]; Ok(()) }, // 143 ld h, e
+        |_cpu, _bus| Ok(()),                             // 144 ld h, h
+        |cpu, _bus| { cpu[R8::H] = cpu[R8::L]; Ok(()) }, // 145 ld h, l
+        |_cpu, _bus| Ok(()),                             // 146 ld h, [hl]
+        |cpu, _bus| { cpu[R8::H] = cpu[R8::A]; Ok(()) }, // 147 ld h, a
+        |cpu, _bus| { cpu[R8::L] = cpu[R8::B]; Ok(()) }, // 150 ld l, b
+        |cpu, _bus| { cpu[R8::L] = cpu[R8::C]; Ok(()) }, // 151 ld l, c
+        |cpu, _bus| { cpu[R8::L] = cpu[R8::D]; Ok(()) }, // 152 ld l, d
+        |cpu, _bus| { cpu[R8::L] = cpu[R8::E]; Ok(()) }, // 153 ld l, e
+        |cpu, _bus| { cpu[R8::L] = cpu[R8::H]; Ok(()) }, // 154 ld l, h
+        |_cpu, _bus| Ok(()),                             // 155 ld l, l
+        |_cpu, _bus| Ok(()),                             // 156 ld l, [hl]
+        |cpu, _bus| { cpu[R8::L] = cpu[R8::A]; Ok(()) }, // 157 ld l, a
+        |_cpu, _bus| Ok(()),   // 160 ld [hl], b
+        |_cpu, _bus| Ok(()),   // 161 ld [hl], c
+        |_cpu, _bus| Ok(()),   // 162 ld [hl], d
+        |_cpu, _bus| Ok(()),   // 163 ld [hl], e
+        |_cpu, _bus| Ok(()),   // 164 ld [hl], h
+        |_cpu, _bus| Ok(()),   // 165 ld [hl], l
+        |_cpu, _bus| Ok(()),   // 166 halt
+        |_cpu, _bus| Ok(()),   // 167 ld [hl], a
+        |cpu, _bus| { cpu[R8::A] = cpu[R8::B]; Ok(()) }, // 170 ld a, b
+        |cpu, _bus| { cpu[R8::A] = cpu[R8::C]; Ok(()) }, // 171 ld a, c
+        |cpu, _bus| { cpu[R8::A] = cpu[R8::D]; Ok(()) }, // 172 ld a, d
+        |cpu, _bus| { cpu[R8::A] = cpu[R8::E]; Ok(()) }, // 173 ld a, e
+        |cpu, _bus| { cpu[R8::A] = cpu[R8::H]; Ok(()) }, // 174 ld a, h
+        |cpu, _bus| { cpu[R8::A] = cpu[R8::L]; Ok(()) }, // 175 ld a, l
+        |_cpu, _bus| Ok(()),   // 176 ld a, [hl]
+        |_cpu, _bus| Ok(()),   // 177 ld a, a
+        |_cpu, _bus| Ok(()),   // 200 add a, b
+        |_cpu, _bus| Ok(()),   // 201 add a, c
+        |_cpu, _bus| Ok(()),   // 202 add a, d
+        |_cpu, _bus| Ok(()),   // 203 add a, e
+        |_cpu, _bus| Ok(()),   // 204 add a, h
+        |_cpu, _bus| Ok(()),   // 205 add a, l
+        |_cpu, _bus| Ok(()),   // 206 add a, [hl]
+        |_cpu, _bus| Ok(()),   // 207 add a, a
+        |_cpu, _bus| Ok(()),   // 210 adc a, b
+        |_cpu, _bus| Ok(()),   // 211 adc a, c
+        |_cpu, _bus| Ok(()),   // 212 adc a, d
+        |_cpu, _bus| Ok(()),   // 213 adc a, e
+        |_cpu, _bus| Ok(()),   // 214 adc a, h
+        |_cpu, _bus| Ok(()),   // 215 adc a, l
+        |_cpu, _bus| Ok(()),   // 216 adc a, [hl]
+        |_cpu, _bus| Ok(()),   // 217 adc a, a
+        |_cpu, _bus| Ok(()),   // 220 sub a, b
+        |_cpu, _bus| Ok(()),   // 221 sub a, c
+        |_cpu, _bus| Ok(()),   // 222 sub a, d
+        |_cpu, _bus| Ok(()),   // 223 sub a, e
+        |_cpu, _bus| Ok(()),   // 224 sub a, h
+        |_cpu, _bus| Ok(()),   // 225 sub a, l
+        |_cpu, _bus| Ok(()),   // 226 sub a, [hl]
+        |_cpu, _bus| Ok(()),   // 227 sub a, a
+        |_cpu, _bus| Ok(()),   // 230 sbc a, b
+        |_cpu, _bus| Ok(()),   // 231 sbc a, c
+        |_cpu, _bus| Ok(()),   // 232 sbc a, d
+        |_cpu, _bus| Ok(()),   // 233 sbc a, e
+        |_cpu, _bus| Ok(()),   // 234 sbc a, h
+        |_cpu, _bus| Ok(()),   // 235 sbc a, l
+        |_cpu, _bus| Ok(()),   // 236 sbc a, [hl]
+        |_cpu, _bus| Ok(()),   // 237 sbc a, a
+        |_cpu, _bus| Ok(()),   // 240 and a, b
+        |_cpu, _bus| Ok(()),   // 241 and a, c
+        |_cpu, _bus| Ok(()),   // 242 and a, d
+        |_cpu, _bus| Ok(()),   // 243 and a, e
+        |_cpu, _bus| Ok(()),   // 244 and a, h
+        |_cpu, _bus| Ok(()),   // 245 and a, l
+        |_cpu, _bus| Ok(()),   // 246 and a, [hl]
+        |_cpu, _bus| Ok(()),   // 247 and a, a
+        |_cpu, _bus| Ok(()),   // 250 xor a, b
+        |_cpu, _bus| Ok(()),   // 251 xor a, c
+        |_cpu, _bus| Ok(()),   // 252 xor a, d
+        |_cpu, _bus| Ok(()),   // 253 xor a, e
+        |_cpu, _bus| Ok(()),   // 254 xor a, h
+        |_cpu, _bus| Ok(()),   // 255 xor a, l
+        |_cpu, _bus| Ok(()),   // 256 xor a, [hl]
+        |_cpu, _bus| Ok(()),   // 257 xor a, a
+        |_cpu, _bus| Ok(()),   // 260 or a, b
+        |_cpu, _bus| Ok(()),   // 261 or a, c
+        |_cpu, _bus| Ok(()),   // 262 or a, d
+        |_cpu, _bus| Ok(()),   // 263 or a, e
+        |_cpu, _bus| Ok(()),   // 264 or a, h
+        |_cpu, _bus| Ok(()),   // 265 or a, l
+        |_cpu, _bus| Ok(()),   // 266 or a, [hl]
+        |_cpu, _bus| Ok(()),   // 267 or a, a
+        |_cpu, _bus| Ok(()),   // 270 cmp a, b
+        |_cpu, _bus| Ok(()),   // 271 cmp a, c
+        |_cpu, _bus| Ok(()),   // 272 cmp a, d
+        |_cpu, _bus| Ok(()),   // 273 cmp a, e
+        |_cpu, _bus| Ok(()),   // 274 cmp a, h
+        |_cpu, _bus| Ok(()),   // 275 cmp a, l
+        |_cpu, _bus| Ok(()),   // 276 cmp a, [hl]
+        |_cpu, _bus| Ok(()),   // 277 cmp a, a
+
+        |_cpu, _bus| Ok(()), // 0300 ret nz
+        |_cpu, _bus| Ok(()), // 0301 pop bc
+        |_cpu, _bus| Ok(()), // 0302 jp nz, a16
+        |_cpu, _bus| Ok(()), // 0303 jp a16
+        |_cpu, _bus| Ok(()), // 0304 call nz, a16
+        |_cpu, _bus| Ok(()), // 0305 push bc
+        |_cpu, _bus| Ok(()), // 0306 add a, n8
+        |_cpu, _bus| Ok(()), // 0307 rst $00
+
+        |_cpu, _bus| Ok(()), // 0310 ret z
+        |_cpu, _bus| Ok(()), // 0311 ret
+        |_cpu, _bus| Ok(()), // 0312 jp z, a16
+        |_cpu, _bus| Ok(()), // 0313 PREFIX 0xCB
+        |_cpu, _bus| Ok(()), // 0314 call z, a16
+        |_cpu, _bus| Ok(()), // 0315 call a16
+        |_cpu, _bus| Ok(()), // 0316 adc a, n8
+        |_cpu, _bus| Ok(()), // 0317 rst $08
+
+        |_cpu, _bus| Ok(()), // 0320 ret nc
+        |_cpu, _bus| Ok(()), // 0321 pop de
+        |_cpu, _bus| Ok(()), // 0322 jp nc, a16
+        |_cpu, _bus| Ok(()), // 0323 --
+        |_cpu, _bus| Ok(()), // 0324 call nc, a16
+        |_cpu, _bus| Ok(()), // 0325 push de
+        |_cpu, _bus| Ok(()), // 0326 sub a, n8
+        |_cpu, _bus| Ok(()), // 0327 rst $10
+
+        |_cpu, _bus| Ok(()), // 0330 ret c
+        |_cpu, _bus| Ok(()), // 0331 reti
+        |_cpu, _bus| Ok(()), // 0332 jp c, a16
+        |_cpu, _bus| Ok(()), // 0333 --
+        |_cpu, _bus| Ok(()), // 0334 call c, a16
+        |_cpu, _bus| Ok(()), // 0335 --
+        |_cpu, _bus| Ok(()), // 0336 sbc a, n8
+        |_cpu, _bus| Ok(()), // 0337 rst $18
+
+        |_cpu, _bus| Ok(()), // 0340 ldh [a8], a
+        |_cpu, _bus| Ok(()), // 0341 pop hl
+        |_cpu, _bus| Ok(()), // 0342 ld [c], a
+        |_cpu, _bus| Ok(()), // 0343 --
+        |_cpu, _bus| Ok(()), // 0344 --
+        |_cpu, _bus| Ok(()), // 0345 push hl
+        |_cpu, _bus| Ok(()), // 0346 and a, n8
+        |_cpu, _bus| Ok(()), // 0347 rst $20
+
+        |_cpu, _bus| Ok(()), // 0350 add sp, e8
+        |_cpu, _bus| Ok(()), // 0351 jp hl
+        |_cpu, _bus| Ok(()), // 0352 ld [a16], a
+        |_cpu, _bus| Ok(()), // 0353 --
+        |_cpu, _bus| Ok(()), // 0354 --
+        |_cpu, _bus| Ok(()), // 0355 --
+        |_cpu, _bus| Ok(()), // 0356 xor a, n8
+        |_cpu, _bus| Ok(()), // 0357 rst $28
+
+        |_cpu, _bus| Ok(()), // 0360 ldh a, [a8]
+        |_cpu, _bus| Ok(()), // 0361 pop af
+        |_cpu, _bus| Ok(()), // 0362 ld a, [c]
+        |_cpu, _bus| Ok(()), // 0363 di
+        |_cpu, _bus| Ok(()), // 0364 --
+        |_cpu, _bus| Ok(()), // 0365 push af
+        |_cpu, _bus| Ok(()), // 0366 or a, n8
+        |_cpu, _bus| Ok(()), // 0367 rst $30
+
+        |_cpu, _bus| Ok(()), // 0370 ld hl, sp + e8
+        |_cpu, _bus| Ok(()), // 0371 ld sp, hl
+        |_cpu, _bus| Ok(()), // 0372 ld a, [a16]
+        |_cpu, _bus| Ok(()), // 0373 ei
+        |_cpu, _bus| Ok(()), // 0374 --
+        |_cpu, _bus| Ok(()), // 0375 --
+        |_cpu, _bus| Ok(()), // 0376 cp a, n8
+        |_cpu, _bus| Ok(()), // 0377 rst $38
+    ];
+    ```