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Intel 8253 - Page 446

Intel 8253
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XA User Guide 6-46 4/17/98
ADDS [Rd+offset8], #data4
Bytes: 3
Clocks: 6
Operation: ((WS:Rd)+offset8) <-- ((WS:Rd)+offset8) + #data4
Encoding:
byte 3: offset8
ADDS [Rd+offset16], #data4
Bytes: 4
Clocks: 6
Operation:((WS:Rd)+offset16) <-- ((WS:Rd)+offset16) + #data4
Encoding:
byte 3: upper 8 bits of offset16
byte 4: lower 8 bits of offset16
ADDS direct, #data4
Bytes: 3
Clocks: 4
Operation:(direct) <-- (direct) + #data4
Encoding:
byte 3: lower 8 bits of direct
1 0 1 0 SZ 1 0 0 0 d d d #data4
1 0 1 0 SZ 1 0 1 0 d d d #data4
1 0 1 0 SZ 1 1 0 0 direct: 3 bits #data4

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