Condition Code Modification - Hitachi H8S/2646 Hardware Manual

Hitachi 16-bit single-chip microcomputer h8s/2646 series
Table of Contents

Advertisement

A.6

Condition Code Modification

This section indicates the effect of each CPU instruction on the condition code. The notation used
in the table is defined below.
m =
31 for longword operands
15 for word operands
7 for byte operands
Si
The i-th bit of the source operand
Di
The i-th bit of the destination operand
Ri
The i-th bit of the result
Dn
The specified bit in the destination operand
Not affected
Modified according to the result of the instruction (see definition)
0
Always cleared to 0
1
Always set to 1
*
Undetermined (no guaranteed value)
Z'
Z flag before instruction execution
C'
C flag before instruction execution
852

Advertisement

Table of Contents
loading

Table of Contents