Jan-19-2019, 09:04 PM
So...I've been working on this little 4 bit computer simulation. It's very simple, it uses just about 16 instructions in a version of assembly language I made. The code is not optimized to the slightest degree, I'm self taught in Python and only use it as a hobby, so I don't work much in high level structuring (This is quite apparent in the addition and subtraction routines). Anyway, if you want to check it out I'll post the code below. I'll also include a link to a little tutorial page.
Feel free to tell me about bugs, positives, negatives and any cool programs you've made!
Thank you.
(Link to tutorial : https://docs.google.com/document/d/1_9vo...sp=sharing)
Feel free to tell me about bugs, positives, negatives and any cool programs you've made!
Thank you.
(Link to tutorial : https://docs.google.com/document/d/1_9vo...sp=sharing)
import random, sys, time
print('PY~COM PC-1')
print('16 instructions of ROM per file; 7 files onboard, expandable to 10 files')
print('16 instructions programmable memory; expandable to 256 (also reflected in ROM) (Used as a virtual limitation)')
print('16 bits of RAM (4 registers of 4 bits or 2 registers of 8 bits)+ a technical extra byte of storable binary.')
input('Hit Enter')
VARS = ['0000', '0000', '0000', '0000']
# A B C D
# 4 registers of 4 bits
# Or 2 Registers of 8 on request
PROG = []
ROM1 = ['OFF 108', 'STO A 0000', 'STO B 1111', 'STO C 0000', 'STO D 1111', 'ADD A 1', 'SUB B 1', 'ADD C 1', 'SUB D 1', 'MEM', 'STP', 'JMP 5']
ROM2 = ['STO A 0000', 'STO B 0000', 'STO C 0000', 'STO D 0000', 'STO X 0000', 'ADD A 1', 'ADD B 1', 'ADD C 1', 'ADD D 1', 'STO X D', 'MEM', 'STP', 'JMP 5']
ROM3 = ['OFF 72', 'BRK 65', 'STO A 0000', 'MEM', 'ADD A 1', 'STP', 'JMP 3', 'STO B 0001', 'MEM', 'STP']
ROM4 = ['STO A 1001', 'STO B 1001', 'STO C 1111', 'STO D 1001', 'STO X 1001', 'DIS', 'LIN 1', 'STO A 1111', 'STO B 0110', 'STO C 0110', 'STO D 0110', 'STO X 1111', 'DIS', 'STP']
ROM5 = []
ROM6 = []
ROM7 = []
TRAN = [('0000', 'STO'), ('0001', 'SHO'), ('0010', 'ADD'), ('0011', 'SUB'),
('0100', 'MEM'), ('0101', 'JMP'), ('0110', 'OFF'), ('0111', 'STO'),
('1000', 'INV'), ('1001', 'STP'), ('1010', 'RAM'), ('1011', 'BRK'),
('1100', 'CLR'), ('1101', 'SAV'), ('1110', 'DIS'), ('1111', 'LIN')]
#EXT1 = ['0010 0000 1', '0010 0001 1', '0010 0010 1',
# '0010 0011 1', '0100 ', '1001 ', '0101 0 ']
EXT1 = []
X = None
GOTO = 0
Z = None
ZX = None
READ = 0
def DO():#Exactly 15 different operations!!!!
global VARS
global GOTO
global X
global Z
global ZX
global ROM1
global ROM2
global ROM3
global ROM4
global ROM5
global ROM6
global ROM7
for x in range(GOTO, len(PROG)):
#time.sleep(len(PROG)*0.1)
if Z == None:
Z = 999
if isinstance(X, int) == True:
X = X +1
if 'STO X' in PROG[x]:
if PROG[x][6] != 'A' and PROG[x][6] != 'B' and PROG[x][6] != 'C' and PROG[x][6] != 'D':
X = ''
for y in range(6, len(PROG[x])):
X = X +PROG[x][y]
if PROG[x][6] == 'A':
X = VARS[0]
if PROG[x][6] == 'B':
X = VARS[1]
if PROG[x][6] == 'C':
X = VARS[2]
if PROG[x][6] == 'D':
X = VARS[3]
if 'STO A' in PROG[x]:
if PROG[x] != 'X' and PROG[x][6] != 'B' and PROG[x][6] != 'C' and PROG[x][6] != 'D':
VARS[0] = ''
for y in range(6, len(PROG[x])):
VARS[0] = VARS[0] +PROG[x][y]
if PROG[x][6] == 'B':
VARS[0] = VARS[1]
if PROG[x][6] == 'C':
VARS[0] = VARS[2]
if PROG[x][6] == 'D':
VARS[0] = VARS[3]
if PROG[x][6] == 'X':
VARS[0] = X
if 'STO B' in PROG[x]:
if PROG[x][6] != 'X' and PROG[x][6] != 'A' and PROG[x][6] != 'C' and PROG[x][6] != 'D':
VARS[1] = ''
for y in range(6, len(PROG[x])):
VARS[1] = VARS[1] +PROG[x][y]
if PROG[x][6] == 'A':
VARS[1] = VARS[0]
if PROG[x][6] == 'C':
VARS[1] = VARS[2]
if PROG[x][6] == 'D':
VARS[1] = VARS[3]
if PROG[x][6] == 'X':
VARS[1] = X
if 'STO C' in PROG[x]:
if PROG[x][6] != 'X' and PROG[x][6] != 'A' and PROG[x][6] != 'B' and PROG[x][6] != 'D':
VARS[2] = ''
for y in range(6, len(PROG[x])):
VARS[2] = VARS[2] +PROG[x][y]
if PROG[x][6] == 'A':
VARS[2] = VARS[0]
if PROG[x][6] == 'B':
VARS[2] = VARS[1]
if PROG[x][6] == 'D':
VARS[2] = VARS[3]
if PROG[x][6] == 'X':
VARS[2] = X
if 'STO D' in PROG[x]:
if PROG[x][6] != 'X' and PROG[x][6] != 'A' and PROG[x][6] != 'B' and PROG[x][6] != 'C':
VARS[3] = ''
for y in range(6, len(PROG[x])):
VARS[3] = VARS[3] +PROG[x][y]
if PROG[x][6] == 'A':
VARS[3] = VARS[0]
if PROG[x][6] == 'B':
VARS[3] = VARS[1]
if PROG[x][6] == 'C':
VARS[3] = VARS[2]
if PROG[x][6] == 'X':
VARS[3] = X
if 'SHO' in PROG[x]:
if PROG[x][4] == 'X':
print(X)
if PROG[x][4] == 'A':
print(VARS[0])
if PROG[x][4] == 'B':
print(VARS[1])
if PROG[x][4] == 'C':
print(VARS[2])
if PROG[x][4] == 'D':
print(VARS[3])
if 'ADD' in PROG[x]:#Steps upward by 1
XY = ''
for y in range(6, len(PROG[x])):
XY = XY +PROG[x][y]
for z in range(0, int(XY)):
if PROG[x][4] == 'A':
if VARS[0] == '0000':
VARS[0] = '0001'
elif VARS[0] == '0001':
VARS[0] = '0010'
elif VARS[0] == '0010':
VARS[0] = '0011'
elif VARS[0] == '0011':
VARS[0] = '0100'
elif VARS[0] == '0100':
VARS[0] = '0101'
elif VARS[0] == '0101':
VARS[0] = '0110'
elif VARS[0] == '0110':
VARS[0] = '0111'
elif VARS[0] == '0111':
VARS[0] = '1000'
elif VARS[0] == '1000':
VARS[0] = '1001'
elif VARS[0] == '1001':
VARS[0] = '1010'
elif VARS[0] == '1010':
VARS[0] = '1011'
elif VARS[0] == '1011':
VARS[0] = '1100'
elif VARS[0] == '1100':
VARS[0] = '1101'
elif VARS[0] == '1101':
VARS[0] = '1110'
elif VARS[0] == '1110':
VARS[0] = '1111'
if PROG[x][4] == 'B':
if VARS[1] == '0000':
VARS[1] = '0001'
elif VARS[1] == '0001':
VARS[1] = '0010'
elif VARS[1] == '0010':
VARS[1] = '0011'
elif VARS[1] == '0011':
VARS[1] = '0100'
elif VARS[1] == '0100':
VARS[1] = '0101'
elif VARS[1] == '0101':
VARS[1] = '0110'
elif VARS[1] == '0110':
VARS[1] = '0111'
elif VARS[1] == '0111':
VARS[1] = '1000'
elif VARS[1] == '1000':
VARS[1] = '1001'
elif VARS[1] == '1001':
VARS[1] = '1010'
elif VARS[1] == '1010':
VARS[1] = '1011'
elif VARS[1] == '1011':
VARS[1] = '1100'
elif VARS[1] == '1100':
VARS[1] = '1101'
elif VARS[1] == '1101':
VARS[1] = '1110'
elif VARS[1] == '1110':
VARS[1] = '1111'
if PROG[x][4] == 'C':
if VARS[2] == '0000':
VARS[2] = '0001'
elif VARS[2] == '0001':
VARS[2] = '0010'
elif VARS[2] == '0010':
VARS[2] = '0011'
elif VARS[2] == '0011':
VARS[2] = '0100'
elif VARS[2] == '0100':
VARS[2] = '0101'
elif VARS[2] == '0101':
VARS[2] = '0110'
elif VARS[2] == '0110':
VARS[2] = '0111'
elif VARS[2] == '0111':
VARS[2] = '1000'
elif VARS[2] == '1000':
VARS[2] = '1001'
elif VARS[2] == '1001':
VARS[2] = '1010'
elif VARS[2] == '1010':
VARS[2] = '1011'
elif VARS[2] == '1011':
VARS[2] = '1100'
elif VARS[2] == '1100':
VARS[2] = '1101'
elif VARS[2] == '1101':
VARS[2] = '1110'
elif VARS[2] == '1110':
VARS[2] = '1111'
if PROG[x][4] == 'D':
if VARS[3] == '0000':
VARS[3] = '0001'
elif VARS[3] == '0001':
VARS[3] = '0010'
elif VARS[3] == '0010':
VARS[3] = '0011'
elif VARS[3] == '0011':
VARS[3] = '0100'
elif VARS[3] == '0100':
VARS[3] = '0101'
elif VARS[3] == '0101':
VARS[3] = '0110'
elif VARS[3] == '0110':
VARS[3] = '0111'
elif VARS[3] == '0111':
VARS[3] = '1000'
elif VARS[3] == '1000':
VARS[3] = '1001'
elif VARS[3] == '1001':
VARS[3] = '1010'
elif VARS[3] == '1010':
VARS[3] = '1011'
elif VARS[3] == '1011':
VARS[3] = '1100'
elif VARS[3] == '1100':
VARS[3] = '1101'
elif VARS[3] == '1101':
VARS[3] = '1110'
elif VARS[3] == '1110':
VARS[3] = '1111'
if 'SUB' in PROG[x]:#Steps downward by 1
XY = ''
for y in range(6, len(PROG[x])):
XY = XY +PROG[x][y]
for z in range(0, int(XY)):
if PROG[x][4] == 'A':
if VARS[0] == '0000':
pass
elif VARS[0] == '0001':
VARS[0] = '0000'
elif VARS[0] == '0010':
VARS[0] = '0001'
elif VARS[0] == '0011':
VARS[0] = '0010'
elif VARS[0] == '0100':
VARS[0] = '0011'
elif VARS[0] == '0101':
VARS[0] = '0100'
elif VARS[0] == '0110':
VARS[0] = '0101'
elif VARS[0] == '0111':
VARS[0] = '0110'
elif VARS[0] == '1000':
VARS[0] = '0111'
elif VARS[0] == '1001':
VARS[0] = '1000'
elif VARS[0] == '1010':
VARS[0] = '1001'
elif VARS[0] == '1011':
VARS[0] = '1010'
elif VARS[0] == '1100':
VARS[0] = '1011'
elif VARS[0] == '1101':
VARS[0] = '1100'
elif VARS[0] == '1110':
VARS[0] = '1101'
elif VARS[0] == '1111':
VARS[0] = '1110'
if PROG[x][4] == 'B':
if VARS[1] == '0000':
pass
elif VARS[1] == '0001':
VARS[1] = '0000'
elif VARS[1] == '0010':
VARS[1] = '0001'
elif VARS[1] == '0011':
VARS[1] = '0010'
elif VARS[1] == '0100':
VARS[1] = '0011'
elif VARS[1] == '0101':
VARS[1] = '0100'
elif VARS[1] == '0110':
VARS[1] = '0101'
elif VARS[1] == '0111':
VARS[1] = '0110'
elif VARS[1] == '1000':
VARS[1] = '0111'
elif VARS[1] == '1001':
VARS[1] = '1000'
elif VARS[1] == '1010':
VARS[1] = '1001'
elif VARS[1] == '1011':
VARS[1] = '1010'
elif VARS[1] == '1100':
VARS[1] = '1011'
elif VARS[1] == '1101':
VARS[1] = '1100'
elif VARS[1] == '1110':
VARS[1] = '1101'
elif VARS[1] == '1111':
VARS[1] = '1110'
if PROG[x][4] == 'C':
if VARS[2] == '0000':
pass
elif VARS[2] == '0001':
VARS[2] = '0000'
elif VARS[2] == '0010':
VARS[2] = '0001'
elif VARS[2] == '0011':
VARS[2] = '0010'
elif VARS[2] == '0100':
VARS[2] = '0011'
elif VARS[2] == '0101':
VARS[2] = '0100'
elif VARS[2] == '0110':
VARS[2] = '0101'
elif VARS[2] == '0111':
VARS[2] = '0110'
elif VARS[2] == '1000':
VARS[2] = '0111'
elif VARS[2] == '1001':
VARS[2] = '1000'
elif VARS[2] == '1010':
VARS[2] = '1001'
elif VARS[2] == '1011':
VARS[2] = '1010'
elif VARS[2] == '1100':
VARS[2] = '1011'
elif VARS[2] == '1101':
VARS[2] = '1100'
elif VARS[2] == '1110':
VARS[2] = '1101'
elif VARS[2] == '1111':
VARS[2] = '1110'
if PROG[x][4] == 'D':
if VARS[3] == '0000':
pass
elif VARS[3] == '0001':
VARS[3] = '0000'
elif VARS[3] == '0010':
VARS[3] = '0001'
elif VARS[3] == '0011':
VARS[3] = '0010'
elif VARS[3] == '0100':
VARS[3] = '0011'
elif VARS[3] == '0101':
VARS[3] = '0100'
elif VARS[3] == '0110':
VARS[3] = '0101'
elif VARS[3] == '0111':
VARS[3] = '0110'
elif VARS[3] == '1000':
VARS[3] = '0111'
elif VARS[3] == '1001':
VARS[3] = '1000'
elif VARS[3] == '1010':
VARS[3] = '1001'
elif VARS[3] == '1011':
VARS[3] = '1010'
elif VARS[3] == '1100':
VARS[3] = '1011'
elif VARS[3] == '1101':
VARS[3] = '1100'
elif VARS[3] == '1110':
VARS[3] = '1101'
elif VARS[3] == '1111':
VARS[3] = '1110'
if 'MEM' in PROG[x]:
print(VARS[0], VARS[1], VARS[2], VARS[3], X)
if 'JMP' in PROG[x]:
if isinstance(X, int) == True and isinstance(ZX, int) == True and X < ZX or ZX == None:
GOTO = ''
for y in range(4, len(PROG[x])):
GOTO = GOTO +PROG[x][y]
GOTO = int(GOTO)
DO()
if 'OFF' in PROG[x]:
Z = ''
for y in range(4, len(PROG[x])):
Z = Z +PROG[x][y]
Z = int(Z)
if 'INV A' in PROG[x]:
TH = ''
for y in range(0, len(VARS[0])):
if VARS[0][y] == '0':
TH = TH +'1'
elif VARS[0][y] == '1':
TH = TH +'0'
VARS[0] = TH
if 'INV B' in PROG[x]:
TH = ''
for y in range(0, len(VARS[1])):
if VARS[1][y] == '0':
TH = TH +'1'
elif VARS[1][y] == '1':
TH = TH +'0'
VARS[1] = TH
if 'INV C' in PROG[x]:
TH = ''
for y in range(0, len(VARS[2])):
if VARS[2][y] == '0':
TH = TH +'1'
elif VARS[2][y] == '1':
TH = TH +'0'
VARS[2] = TH
if 'INV D' in PROG[x]:
TH = ''
for y in range(0, len(VARS[3])):
if VARS[3][y] == '0':
TH = TH +'1'
elif VARS[3][y] == '1':
TH = TH +'0'
VARS[3] = TH
if 'STP' in PROG[x]:
input('Hit Enter to Step')
if 'RAM' in PROG[x]:
PER = 0
for z in range(0, len(VARS)):
for zz in range(0, len(VARS[z])):
if VARS[z][zz] == '1':
PER = PER +1
print('RAM :', PER, '/ 16')
if 'BRK' in PROG[x]:
ZX = ''
for y in range(4, len(PROG[x])):
ZX = ZX +PROG[x][y]
ZX = int(ZX)
if 'CLR' in PROG[x]:
VARS = ['0000', '0000', '0000', '0000']
X = 0
if 'SAV 1' in PROG[x]:
ROM1 = PROG
if 'SAV 2' in PROG[x]:
ROM2 = PROG
if 'SAV 3' in PROG[x]:
ROM3 = PROG
if 'SAV 4' in PROG[x]:
ROM4 = PROG
if 'SAV 5' in PROG[x]:
ROM5 = PROG
if 'SAV 6' in PROG[x]:
ROM6 = PROG
if 'SAV 7' in PROG[x]:
ROM7 = PROG
if 'DIS' in PROG[x]:
OTHER = ['', '', '', '', '']
for y in range(0, len(VARS[0])):
if VARS[0][y] == '0':
OTHER[0] = OTHER[0] +' '
if VARS[0][y] == '1':
OTHER[0] = OTHER[0] +'#'
for y in range(0, len(VARS[1])):
if VARS[1][y] == '0':
OTHER[1] = OTHER[1] +' '
if VARS[1][y] == '1':
OTHER[1] = OTHER[1] +'#'
for y in range(0, len(VARS[2])):
if VARS[2][y] == '0':
OTHER[2] = OTHER[2] +' '
if VARS[2][y] == '1':
OTHER[2] = OTHER[2] +'#'
for y in range(0, len(VARS[3])):
if VARS[3][y] == '0':
OTHER[3] = OTHER[3] +' '
if VARS[3][y] == '1':
OTHER[3] = OTHER[3] +'#'
for y in range(0, len(X)):
if X[y] == '0':
OTHER[4] = OTHER[4] +' '
if X[y] == '1':
OTHER[4] = OTHER[4] +'#'
print(OTHER[0])
print(OTHER[1])
print(OTHER[2])
print(OTHER[3])
print(OTHER[4])
if 'LIN' in PROG[x]:
AMT = ''
for y in range(4, len(PROG[x])):
AMT = AMT +PROG[x][y]
print((int(AMT)-1)*'\n')
if isinstance(X, int) == True and X >= Z:
print('Program Ended By Recursion')
time.sleep(3)
THINGY()
X = None
break
THINGY()
def THINGY():
global V
global VARS
global PROG
global TEST
global X
global ZX
global ROM1
global ROM2
global ROM3
global ROM4
global ROM5
global ROM6
global ROM7
global READ
ZX = None
X = None
VARS = ['0000', '0000', '0000', '0000']
PROG = []
while 0 == 0:
print('\n'*100)
for x in range(0, 16):
VARS = ['0000', '0000', '0000', '0000']
print('Line', x, ' Instructions Remaining', 16-x)
A = input(':')
if A != 'RUN':
PROG.append(A)
if A == 'ROM':
print('1.) ROM 1 Default : Up and Down Bits')
print('2.) ROM 2 Default : Full Counter')
print('3.) ROM 3 Default : Counter with Cutoff Flag')
print('4.) ROM 4 Default : Greeting Display')
print('5.) ROM 5 Default : Empty')
print('6.) ROM 6 Default : Empty')
print('7.) ROM 7 Default : Empty')
B = input(':')
if B == '1':
X = 0
PROG = ROM1
DO()
if B == '2':
X = 0
PROG = ROM2
DO()
if B == '3':
X = 0
PROG = ROM3
DO()
if B == '4':
X = 0
PROG = ROM4
DO()
if B == '5':
X = 0
PROG = ROM5
DO()
if B == '6':
X = 0
PROG = ROM6
DO()
if B == '7':
X = 0
PROG = ROM7
DO()
if A == 'CLR':
PROG = []
VARS = ['0000', '0000', '0000', '0000']
THINGY()
if A == 'RUN':
X = 0
DO()
if A == 'LOAD':
print('File Path')
PATH = input(':')
file = open(PATH, 'r')
#C:\\Users\\Family\\Desktop\\A.txt
READ = file.read()
print(READ)
file.close()
V = 0
PROG = []
PRE = ''
while 0 == 0:
try:
if READ[V] != '\n':
PRE = PRE +READ[V]
V = V +1
except:
break
try:
if READ[V] == '\n':
EXT1.append(PRE)
PRE = ''
V = V +1
except:
EXT1.append(PRE)
break
if V >= len(READ):
break
for x in range(0, len(EXT1)):
#Searches for the text version of the binary prefix
APP = ''
XYZ = EXT1[x][0]+EXT1[x][1]+EXT1[x][2]+EXT1[x][3]
for y in range(0, len(TRAN)):
if XYZ in TRAN[y]:
APP = APP +TRAN[y][1]
#Summons next block of binary
XYZ2 = EXT1[x][5]+EXT1[x][6]+EXT1[x][7]+EXT1[x][8]
if APP == 'JMP':
APP = APP +' '+XYZ2
#Adds variable for second block
if XYZ2 == '0000':
APP = APP +' A'
if XYZ2 == '0001':
APP = APP +' B'
if XYZ2 == '0010':
APP = APP +' C'
if XYZ2 == '0011':
APP = APP +' D'
if XYZ2 == '0100':
APP = APP +' X'
#Summons final block, takes integer
XYZ3 = ''
for z in range(10, len(EXT1[x])):
XYZ3 = XYZ3+EXT1[x][z]
APP = APP +' '+XYZ3
PROG.append(APP)#Adds to program
for x in range(0, len(PROG)):
print('Line', x)
print(PROG[x])
print('Compiling...')
time.sleep(3)
print('\n'*100)
X = 0
DO()
print('Memory Full!')
THINGY()