Rev. 1.50, 10/04, page 250 of 448
LDSMMACH(long m) /* LDS.L @Rm+,MACH */
{
MACH = Read_Long(R[m]);
R[m] += 4;
PC += 2;
}
LDSMMACL(lomg m) /* LDS.L @Rm+,MACL */
{
MACL = Read_Long(R[m]);
R[m] += 4;
PC += 2;
}
LDSMPR(long m) /* LDS.L @Rm+,PR */
{
PR = Read_Long(R[m]);
R[m] += 4;
PC += 2;
}
Example:
LDS R0,PR
;
Before execution
R0 = H'12345678, PR = H'00000000
;
After execution
PR = H'12345678
LDS.L @R15+,MACL
;
Before execution
R15 = H'10000000
;
After execution
R15 = H'10000004, MACL = (H'10000000)
Possible Exceptions:
Exception may occur when LDS.L instruction is executed.
•
Data TLB multiple-hit exception
•
Data TLB miss exception
•
Data TLB protection violation exception
•
Data address error
Содержание SuperH SH-4A
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