
SAB 80C166W/83C166W
Semiconductor Group
23
Arithmetic Operations (cont’d)
ADDCB
mem, reg
Add direct byte register to direct memory with Carry
4
SUB
Rw, Rw
Subtract direct word GPR from direct GPR
2
SUB
Rw, [Rw]
Subtract indirect word memory from direct GPR
2
SUB
Rw, [Rw +]
Subtract indirect word memory from direct GPR and
post-increment source pointer by 2
2
SUB
Rw, #data3
Subtract immediate word data from direct GPR
2
SUB
reg, #data16
Subtract immediate word data from direct register
4
SUB
reg, mem
Subtract direct word memory from direct register
4
SUB
mem, reg
Subtract direct word register from direct memory
4
SUBB
Rb, Rb
Subtract direct byte GPR from direct GPR
2
SUBB
Rb, [Rw]
Subtract indirect byte memory from direct GPR
2
SUBB
Rb, [Rw +]
Subtract indirect byte memory from direct GPR and
post-increment source pointer by 1
2
SUBB
Rb, #data3
Subtract immediate byte data from direct GPR
2
SUBB
reg, #data8
Subtract immediate byte data from direct register
4
SUBB
reg, mem
Subtract direct byte memory from direct register
4
SUBB
mem, reg
Subtract direct byte register from direct memory
4
SUBC
Rw, Rw
Subtract direct word GPR from direct GPR with Carry
2
SUBC
Rw, [Rw]
Subtract indirect word memory from direct GPR with Carry
2
SUBC
Rw, [Rw +]
Subtract indirect word memory from direct GPR with
Carry and post-increment source pointer by 2
2
SUBC
Rw, #data3
Subtract immediate word data from direct GPR with Carry
2
SUBC
reg, #data16
Subtract immediate word data from direct register with
Carry
4
SUBC
reg, mem
Subtract direct word memory from direct register with Carry 4
SUBC
mem, reg
Subtract direct word register from direct memory with Carry 4
SUBCB
Rb, Rb
Subtract direct byte GPR from direct GPR with Carry
2
SUBCB
Rb, [Rw]
Subtract indirect byte memory from direct GPR with Carry
2
SUBCB
Rb, [Rw +]
Subtract indirect byte memory from direct GPR with Carry
and post-increment source pointer by 1
2
SUBCB
Rb, #data3
Subtract immediate byte data from direct GPR with Carry
2
SUBCB
reg, #data8
Subtract immediate byte data from direct register with Carry 4
Instruction Set Summary (cont’d)
Mnemonic
Description
Bytes