SH-2A Datasheet, PDF (117/501 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperH™ RISC engine Family

Section 6 Instruction Descriptions
Operation
BSETM (long d, long i, long n)
{
long disp, imm, temp;
/*BSET.B #imm3, @(disp12, Rn) */
disp = (0x00000FFF & (long)d);
imm= (0x00000007&(long)i);
temp= (long) Read_Byte (R[n]+disp);
temp|=(0x00000001<<imm);
Write_Byte (R[n]+disp, temp);
PC+=4;
}
BSET (long i, long n)
{
long imm, temp;
/*BSET #imm3, Rn */
imm= (0x00000007 &(long)i);
R[n]|=(0x00000001<<imm);
PC+=2;
}
Examples:
BSET.B #H'5,@(2,R0)
; Before execution: @(R0 + 2) = H'00
; After execution: @(R0 + 2) = H'20
BSET #H'4,R0
; Before execution: R0 = H'00000000
; After execution: R0 = H'00000010
Rev. 3.00 Jul 08, 2005 page 103 of 484
REJ09B0051-0300