Intel 8253 - Page 511

4/17/98 6-111 Addressing Modes and Data Types
MOV [Rd], Rs
Bytes: 2
Clocks: 3
Operation: ((WS:Rd)) <-- (Rs)
Encoding:
MOV Rd, [Rs+offset8]
Bytes: 3
Clocks: 5
Operation: (Rd) <-- ((WS:Rs)+offset8)
Encoding:
byte 3: offset8
MOV [Rd+offset8], Rs
Bytes: 3
Clocks: 5
Operation: ((WS:Rd)+offset8) <-- (Rs)
Encoding:
byte 3: offset8
MOV Rd, [Rs+offset16]
Bytes: 4
Clocks: 5
Operation: (Rd) <-- ((WS:Rs)+offset16)
Encoding:
byte 3: upper 8 bits of offset16
byte 4: lower 8 bits of offset16
1 0 0 0 SZ 0 1 0 s s s s 1 d d d
1 0 0 0 SZ 1 0 0 d d d d 0 s s s
1 0 0 0 SZ 1 0 0 s s s s 1 d d d
1 0 0 0 SZ 1 0 1 d d d d 0 s s s