KIM-1 Microcomputer Emulator
RESET: PC hardcoded to
C00 • NMI:
FFA/
FFB • IRQ:
FFE/
FFF
PWR
SPD
0.25x
0.5x
1x
2x
4x
C00" style="background:#2a1a0a;color:#c4a35a;border:1px solid #5a3a1a;border-radius:4px;padding:3px 8px;font-size:11px;cursor:pointer;font-family:var(--mono)">RST
FFA/
FFB" style="background:#0a1a2a;color:#5ac4c4;border:1px solid #1a3a5a;border-radius:4px;padding:3px 8px;font-size:11px;cursor:pointer;font-family:var(--mono)">NMI
Examples ▾
MOS TECHNOLOGY
KIM-1
ADDR
DATA
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
AD
DA
+
GO
PC
SST
RS
ST
Keys: 0-F hex • H=AD • J=DA • +=Inc • Enter=GO • P=PC • Esc=RS • S=SST • T=ST
▸ CPU STATUS
▲
A:
$00
X:
$00
Y:
$00
SP:
$FD
PC:
$0000
P:
4
N
V
-
B
D
I
Z
C
▸ MEMORY INSPECTOR
VIEW
Vectors
FF8
Entry
C00
ZeroPage
Prog 00
▸ HEX LOADER
▼
KIM-1 Emulator — MOS Technology 6502 • circa 1976 • Emulated with ❤️ in 2026
Hardcoded reset: PC =
C00 (no vector lookup)
Remix on Berrry