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Table A-3. Load/Store access type designations
Mnemonic Value Meaning
WORD 3 Word access (32 bits)
TRIPLEBYTE 2 Triplebyte access (24 bits)
HALFWORD 1 Halfword access (16 bits)
BYTE 0 Byte access (8 bits)
The individual bytes in an addressed word can be determined directly from the access type and the low-order
two bits of the address, as shown in Table A-4.
Access type Lower Bytes Accessed
1 0
address bit
1 0
Big endian
31 0
Little endian
31 0
1 1
(word)
0 0
1 0
(triplebyte)
0 0
0 1
0 1
(halfword)
0 0
1 0
0 0
(byte)
0 0
0 1
1 0
1 1
Table A-4. Load/Store byte access
3
2
1
0
2
1
0
3
2
1
1
0
3
2
0
1
2
3
0
1
2
3
0
1
2
1
2
3
0
1
2
3
0
1
2
3