Clrmac - Hitachi SH7750 Programming Manual

10.13

CLRMAC

MAC Register Clear
Format
CLRMAC
Description
This instruction clears the MACH and MACL registers.
Operation
CLRMAC( ) /* CLRMAC */
{
MACH=0;
MACL=0;
PC+=2;
}
Example
CLRMAC
MAC.W @R0+,@R1+
MAC.W @R0+,@R1+
Rev. 2.0, 03/99, page 222 of 396
CleaR MAC register
Summary of Operation
0 → MACH, MACL
;Clear MAC register to initialize.
;Multiply-and-accumulate operation
;
System Control Instruction
Instruction Code
0000000000101000 1
Execution
States T Bit
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