參數(shù)資料
型號(hào)： TSC251G1DXXX-24IA
英文描述： IC CYCLONE III FPGA 5K 144 EQFP
中文描述： 微控制器
文件頁(yè)數(shù)： 25/63頁(yè)
文件大?。?/td> 878K
代理商： TSC251G1DXXX-24IA
25
Rev. A - May 7, 1999
TSC80251G2D
Table 30. Summary of Exchange, Push and Pop Instructions
Notes:
1. A shaded cell denotes an instruction in the C51 Architecture.
2. If this instruction addresses an I/O Port (Px, x= 0-3), add 1 to the number of states. Add 2 if it addresses a Peripheral SFR.
3. If this instruction addresses an I/O Port (Px, x= 0-3), add 2 to the number of states. Add 3 if it addresses a Peripheral SFR.
Table 31. Summary of Conditional Jump Instructions (1/2)
Notes:
1. A shaded cell denotes an instruction in the C51 Architecture.
2. States are given as jump not-taken/taken.
3. In internal execution only, add 1 to the number of states of the ‘jump taken’ if the destination address is internal and odd.
Exchange bytes
Exchange Digit
Push
XCH A, <src>
XCHD A, <src>
PUSH <src>
(A)
src opnd
(A)
3:0
src opnd
3:0
(SP)
←
(SP) +1; ((SP))
←
src opnd;
(SP)
←
(SP) + size (src opnd) - 1
(SP)
←
(SP) - size (dest opnd) + 1;
dest opnd
←
((SP)); (SP)
←
(SP) -1
Pop
POP <dest>
Mnemonic
<dest>, <src>
(1)
Comments
Binary Mode
Source Mode
Bytes
States
Bytes
States
XCH
A, Rn
ACC and register
1
3
2
4
A, dir8
ACC and direct address (on-chip RAM or SFR)
2
3
(3)
2
3
(3)
A, @Ri
ACC and indirect address
1
4
2
5
XCHD
A, @Ri
ACC low nibble and indirect address (256 bytes)
1
4
2
5
PUSH
dir8
Push direct address onto stack
2
2
(2)
2
2
(2)
#data
Push immediate data onto stack
4
4
3
3
#data16
Push 16-bit immediate data onto stack
5
5
4
5
Rm
Push byte register onto stack
3
4
2
3
WRj
Push word register onto stack
3
5
2
4
DRk
Push double word register onto stack
3
9
2
8
POP
dir8
Pop direct address (on-chip RAM or SFR) from stack
2
3
(2)
2
3
(2)
Rm
Pop byte register from stack
3
3
2
2
WRj
Pop word register from stack
3
5
2
4
DRk
Pop double word register from stack
3
9
2
8
Jump conditional on status
Jcc rel
(PC)
←
(PC) + size (instr);
IF [cc] THEN (PC)
←
(PC) + rel
Mnemonic
<dest>, <src>
(1)
Comments
Binary Mode
Source Mode
Bytes
States
Bytes
States
JC
rel
Jump if carry
2
1/4
(3)
1/4
(3)
2/5
(3)
2/5
(3)
2/5
(3)
2/5
(3)
2/5
(3)
2/5
(3)
2/5
(3)
2/5
(3)
2
1/4
(3)
1/4
(3)
1/4
(3)
1/4
(3)
1/4
(3)
1/4
(3)
1/4
(3)
1/4
(3)
1/4
(3)
1/4
(3)
JNC
rel
Jump if not carry
2
2
JE
rel
Jump if equal
3
2
JNE
rel
Jump if not equal
3
2
JG
rel
Jump if greater than
3
2
JLE
rel
Jump if less than, or equal
3
2
JSL
rel
Jump if less than (signed)
3
2
JSLE
rel
Jump if less than, or equal (signed)
3
2
JSG
rel
Jump if greater than (signed)
3
2
JSGE
rel
Jump if greater than or equal (signed)
3
2
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