Instruction Set used in simplified instructional Computer (SIC)

Prerequisite – Simplified Instructional Computer (SIC)
These are the instructions used in programming the Simplified Instructional Computer(SIC). 

Here, 
A stands for Accumulator 
M stands for Memory 
CC stands for Condition Code 
PC stands for Program Counter 
RMB stands for Right Most Byte 
L stands for Linkage Register 

MNEMONIC	OPERAND	OPCODE	EXPLANATION
ADD	M	18	A = A + M
AND	M	40	A = A AND M
COMP	M	28	compares A and M
DIV	M	24	A = A / M
J	M	3C	PC = M
JEQ	M	30	if CC set to =, PC = M
JGT	M	34	if CC set to >, PC = M
JLT	M	38	if CC set to <, PC = M
JSUB	M	48	L = PC ; PC = M
LDA	M	00	A = M
LDCH	M	50	A[RMB] = M[RMB]
LDL	M	08	L = M
LDX	M	04	X = M
MUL	M	20	A = A * M
OR	M	44	A = A OR M
RD	M	D8	A[RMB] = data specified by M[RMB]
RSUB		4C	PC = L
STA	M	0C	M = A
STCH	M	54	M[RMB] = A[RMB]
STL	M	14	M = L
STSW	M	E8	M = SW
STX	M	10	M = X
SUB	M	1C	A = A – M
TD	M	E0	test device specified by M
TIX	M	2C	X = X + 1 ; compare X with M
WD	M	DC	device specified by M[RMB] = A[RMB]

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