SH-2A Datasheet, PDF (270/501 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperH™ RISC engine Family

Section 6 Instruction Descriptions
Operation
SHLR2(long n) /* SHLR2 Rn */
{
R[n]>>=2;
R[n]&=0x3FFFFFFF;
PC+=2;
}
SHLR8(long n) /* SHLR8 Rn */
{
R[n]>>=8;
R[n]&=0x00FFFFFF;
PC+=2;
}
SHLR16(long n) /* SHLR16 Rn */
{
R[n]>>=16;
R[n]&=0x0000FFFF;
PC+=2;
}
Examples:
SHLR2 R0
SHLR8 R0
SHLR16 R0
; Before execution:
; After execution:
; Before execution:
; After execution:
; Before execution:
; After execution:
R0 = H'12345678
R0 = H'048D159E
R0 = H'12345678
R0 = H'00123456
R0 = H'12345678
R0 = H'00001234
Rev. 3.00 Jul 08, 2005 page 256 of 484
REJ09B0051-0300