Basic Computer Simulator
Assembler
Simulator
Compiler
Assemble
PC
HEX
1.
2.
3.
4.
5.
6.
7.
8.
9.
lda num1 add num2 sta num3 out hlt org 100 num1, dec 2 num2, dec 3 num3, dec 0
Controls
CLK
Hz
INPUT
Enter
SC
0
0
0
INR
CLR
CLK
3x8 Decoder
T7
0
T6
0
T5
0
T4
0
T3
0
T2
0
T1
0
T0
1
IR(12-14)
0
0
0
3x8 Decoder
D7
0
D6
0
D5
0
D4
0
D3
0
D2
0
D1
0
D0
0
S
0
I
0
R
0
IEN
0
FGI
0
FGO
0
Memory Unit
000
100
200
300
400
500
600
700
800
900
A00
B00
C00
D00
E00
F00
Address
BIN
HEX
DEC
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Read
Write
Address
7
AR
HEX
0
DEC
0
0
0
0
0
0
0
0
0
0
0
0
0
LD
INR
CLR
CLK
1
PC
HEX
0
DEC
0
0
0
0
0
0
0
0
0
0
0
0
0
LD
INR
CLR
CLK
2
DR
HEX
0
DEC
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
LD
INR
CLR
CLK
3
ALU
AND
ADD
COM
DR
INPR
SHR
SHL
E
0
AC
HEX
0
DEC
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
LD
INR
CLR
CLK
4
INPR
HEX
0
DEC
0
0
0
0
0
0
0
0
0
IR
HEX
0
DEC
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
LD
CLK
5
TR
HEX
0
DEC
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
LD
INR
CLR
CLK
6
OUTR
HEX
0
DEC
0
0
0
0
0
0
0
0
0
LD
CLK
16 Bit Common Bus
Bus
0
Select
S2
0
S1
0
S0
0