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Intel 8253 - Page 419

Intel 8253
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4/17/98 6-19 Addressing Modes and Data Types
ADDC [Rd+offset16], #data8 Add 8-bit immediate data to register-indirect
with 16-bit offset and carry
56
ADDC [Rd+offset16], #data16 Add 16-bit immediate data to register-indirect
with 16-bit offset and carry
66
ADDC direct, #data8 Add 8-bit immediate data to memory with
carry
44
ADDC direct, #data16 Add 16-bit immediate data to memory with
carry
54
ADDS Rd, #data4 Add 4-bit signed immediate data to register 2 3
ADDS [Rd], #data4 Add 4-bit signed immediate data to register-
indirect
24
ADDS [Rd+], #data4 Add 4-bit signed immediate data to register-
indirect with auto-increment
25
ADDS [Rd+offset8], #data4 Add register-indirect with 8-bit offset to 4-bit
signed immediate data
36
ADDS [Rd+offset16], #data4 Add register-indirect with 16-bit offset to 4-bit
signed immediate data
46
ADDS direct, #data4 Add 4-bit signed immediate data to memory 3 4
ASL Rd, Rs Logical left shift destination register by the
value in the source register
2 See
Note1
ASL Rd, #data4 Logical left shift register by the 4-bit
immediate value
2 See
Note1
ASR Rd, Rs Arithmetic shift right destination register by
the count in the source
2 See
Note1
ASR Rd, #data4 Arithmetic shift right register by the 4-bit
immediate count
2 See
Note1
CMP Rd, Rs Compare destination and source registers 2 3
CMP [Rd], Rs Compare register with register-indirect 2 4
CMP Rd, [Rs] Compare register-indirect with register 2 4
CMP [Rd+offset8], Rs Compare register with register-indirect with 8-
bit offset
36
CMP [Rd+offset16], Rs Compare register with register-indirect with
16-bit offset
46
CMP Rd, [Rs+offset8] Compare register-indirect with 8-bit offset
with register
36
CMP Rd,[Rs+offset16] Compare register-indirect with 16-bit offset
with register
46
Table 6.5
Mnemonic Description Bytes Clocks

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