SH-2A Datasheet, PDF (209/501 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperH™ RISC engine Family

Res0=temp0+temp1;
if (Res0<temp0) Res2++;
Section 6 Instruction Descriptions
Res2=Res2+((Res1>>16)&0x0000FFFF)+temp3;
MACH=Res2;
MACL=Res0;
PC+=2;
}
Example:
DMULU.L R0,R1
STS
MACH,R0
STS
MACL,R0
; Before execution: R0 = H'FFFFFFFE, R1 = H'00005555
; After execution: MACH = H'FFFFFFFF, MACL = H'FFFF5556
; Operation result (top)
; Operation result (bottom)
Rev. 3.00 Jul 08, 2005 page 195 of 484
REJ09B0051-0300