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Intel 8253 - Page 423

Intel 8253
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4/17/98 6-23 Addressing Modes and Data Types
SUBB [Rd+], Rs Subtract with borrow register-indirect with
auto increment to register
25
SUBB direct, Rs Subtract with borrow register to memory 3 4
SUBB Rd, direct Subtract with borrow memory to register 3 4
SUBB Rd, #data8 Subtract with borrow 8-bit immediate data to
register
33
SUBB Rd, #data16 Subtract with borrow 16-bit immediate data to
register
43
SUBB [Rd], #data8 Subtract with borrow 8-bit immediate data to
register-indirect
34
SUBB [Rd], #data16 Subtract with borrow 16-bit immediate data to
register-indirect
44
SUBB [Rd+], #data8 Subtract with borrow 8-bit immediate data to
register-indirect with auto-increment
35
SUBB [Rd+], #data16 Subtract with borrow 16-bit immediate data to
register-indirect with auto-increment
45
SUBB [Rd+offset8], #data8 Subtract with borrow 8-bit immediate data to
register-indirect with 8-bit offset
46
SUBB [Rd+offset8], #data16 Subtract with borrow 16-bit immediate data to
register-indirect with 8-bit offset
56
SUBB [Rd+offset16], #data8 Subtract with borrow 8-bit immediate data to
register-indirect with 16-bit offset
56
SUBB [Rd+offset16], #data16 Subtract with borrow 16-bit immediate data to
register-indirect with 16-bit offset
66
SUBB direct, #data8 Subtract with borrow 8-bit immediate data to
memory
44
SUBB direct, #data16 Subtract with borrow 16-bit immediate data to
memory
54
Logical Operations
AND Rd, Rs Logical AND registers direct 2 3
AND Rd, [Rs] Logical AND register-indirect to register 2 4
AND [Rd], Rs Logical AND register to register-indirect 2 4
AND Rd, [Rs+offset8] Logical AND register-indirect with 8-bit offset
to register
36
AND [Rd+offset8], Rs Logical AND register to register-indirect with
8-bit offset
36
Table 6.5
Mnemonic Description Bytes Clocks

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