VIPA CPU 21 Series - Math instructions

Manual VIPA CPU 21x Chapter 12 Instruction list
Command
Operand Parameter Status word Function
Length
in
BR CC1 CC0 OV OS OR STA RLO /FC
words
: Instruction depends on
: Instruction influences
HB103E - Rev. 05/45 12-11
Math instructions
Fixed-point arithmetic
(16Bit)
Status word Math instructions of two 16Bit numbers. The
result is in ACCU1 res. ACCU1-L.
+I -
BR CC1 CC0 OV OS OR STA RLO /FC
Add up two integers (16Bit). 1
- - - - -----(ACCU1-L)=(ACCU1-L)+(ACCU2-L)
-I - - Y Y Y Y - - - - Subtract two integers (16Bit). 1
(ACCU1-L)=(ACCU2-L)-(ACCU1-L)
*I - Multiply two integers (16Bit). 1
(ACCU1-L)=(ACCU2-L)*(ACCU1-L)
/I - Divide two integers (16Bit). 1
(ACCU1-L)=(ACCU2-L):(ACCU1-L)
The remainder is in ACCU1-H.
Fixed-point arithmetic
(32Bit)
Status word Math instructions of two 32Bit numbers. The
result is in ACCU1.
+D -
BR CC1 CC0 OV OS OR STA RLO /FC
Add up two integers (32Bit). 1
- - - - -----(ACCU1)=(ACCU2)+(ACCU1)
-D - - Y Y Y Y - - - - Subtract two integers (32Bit). 1
(ACCU1)=(ACCU2)-(ACCU1)
*D - Multiply two integers (32Bit). 1
(ACCU1)=(ACCU2)*(ACCU1)
/D - Divide two integers (32Bit). 1
(ACCU1)=(ACCU2):(ACCU1)
MOD - Divide two integers (32Bit) and load the rest of the 1
division in ACCU1.
(ACCU1)=remainder of [(ACCU2):(ACCU1)]
Floating-point arithmetic
(32Bit)
Status word The result of the math instructions is in ACCU1.
The execution time of the instruction depends
on the value to calculate.
+R -
BR CC1 CC0 OV OS OR STA RLO /FC
Add up two real numbers (32Bit) 1
- - - - -----(ACCU1)=(ACCU2)+(ACCU1)
-R - - Y Y Y Y - - - - Subtract two real numbers (32Bit). 1
(ACCU1)=(ACCU2)-(ACCU1)
*R - Multiply two real numbers (32Bit). 1
(ACCU1)=(ACCU2)*(ACCU1)
/R - Divide two real numbers (32Bit). 1
(ACCU1)=(ACCU2):(ACCU1)
NEGR -
BR CC1 CC0 OV OS OR STA RLO /FC
Negate the real number in ACCU1. 1
- - - - -----
ABS - - - - - -----Form the absolute value of the real number in ACCU1. 1