D950-CORE View Datasheet(PDF) - STMicroelectronics
Part Name
Description
MFG CO.
'D950-CORE' PDF : 89 Pages View PDF
D950-Core
Three-word Operand (oper_3)
ADD
Addition
ADDCAddition with Carry
ADDS Addition with Shift
AND
Logical AND
CMP
Compare
CMPS Compare Sign
OR
Logical OR
SUB
Subtraction
SUBC Subtraction with Carry
SUBR Reversed Subtraction
SUBRC Reversed Subtraction with Carry
SUBRS Reversed Subtraction with Shift
SUBS Subtraction with Shift
XOR
Exclusive OR
Figure 5.7 ALU Three-Word Operand (oper_3)
*AXm + IXs = ApH
*AYn + IYr = ApH
Ai = Lj oper_3 Ai
,
(CCR)* P
Ai = Rk oper_3 Ai
,
(CCR)* P
Ai = Lj oper_3 Rk
(CCR)* P
,
Ai = Aj oper_3 Ak
(CCR)*
Ai = Lj oper_3 Rk
(CCR)* Rj
Ak
Aj
P
Lp = *AXm + IXs
Rq = *AYn + IYr
A1=L1 oper_3 R1
(CCR)*
,
Li = *AX1 + IX3
*AY1 + IY3 = A1H
,
A1 = L1 oper_3 R1
(CCR)*
A1
,
Li = *AX1 + IX3
*AX1 + IX3 = A1H
A1 = L1 oper_3 R1
,
(CCR)* A1
,
P
Ri = *AY1 + IY3
(CCR)* is used in place of Ai or A1 when instruction=CMP or CMPS
,
Rj = *AY1 + IY3
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