Rev. 1.50, 10/04, page 294 of 448
Operation:
OR(long m, long n) /* OR Rm,Rn */
{
R[n] |= R[m];
PC += 2;
}
ORI(long i) /* OR #imm,R0 */
{
R[0] |= (0x000000FF & (long)i);
PC += 2;
}
ORM(long i) /* OR.B #imm,@(R0,GBR) */
{
long temp;
temp = (long)Read_Byte(GBR+R[0]);
temp |= (0x000000FF & (long)i);
Write_Byte(GBR+R[0],temp);
PC += 2;
}
Example:
OR
R0,R1
;
Before execution R0 = H'AAAA5555, R1 = H'55550000
;
After execution
R1 = H'FFFF5555
OR
#H'F0,R0
;
Before execution R0 = H'00000008
;
After execution
R0 = H'000000F8
OR.B #H'50,@(R0,GBR)
;
Before execution (R0,GBR) = H'A5
;
After execution
(R0,GBR) = H'F5
Содержание SuperH SH-4A
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