CN1503127A

CN1503127A - Program coding method for extending program storage space and dynamic upgrading program

Info

Publication number: CN1503127A
Application number: CNA021358249A
Authority: CN
Inventors: 刘丁阳
Original assignee: Xiamen Swift Information Communication Technology Co Ltd
Current assignee: Xiamen Swift Information Communication Technology Co Ltd
Priority date: 2002-11-20
Filing date: 2002-11-20
Publication date: 2004-06-09

Abstract

This invention puts forward a new coding method in order to elevate programs for the fixed program single-chip procssor and expand its effect in which, the single-chip one can access a program code content segment stored in a storage zone for storing data to carry out the processor code segment till to finish the task corresponding to the code content segment stored in the storage zone when getting the processor code segment information needed to be carried out next step.

Description

The program coding method of a kind of extender storage space and dynamic updating programe

Technical field

The present invention relates to a kind of external data of utilizing and handle, improve the program coding method of single-chip microcomputer internal operation performance, but be the program coding method of a kind of extender storage space and dynamic updating programe.

Background technology

Existing Single Chip Microcomputer (SCM) system, because the restriction of its port identity all defines program's memory space, in the more content of operation, the programmer has to seek an optimized solution, makes calling program can be limited to certain size; Single Chip Microcomputer (SCM) system is also arranged, but the port of extender internal memory is provided, but the size of its Extended RAM is still restricted.

This makes most Single Chip Microcomputer (SCM) system, only be fit to the simple working flow process, also making much needs on the device of Single Chip Microcomputer (SCM) system, need to install more than one Single Chip Microcomputer (SCM) system, to adapt to different solutions, so, the resource of having wasted single-chip microcomputer greatly, and need on a machine, debug many cover Single Chip Microcomputer (SCM) system.

And, different single-chip microcomputers, the language of use is also not the same, and each have their own standard in case use multiple Single Chip Microcomputer (SCM) system on a machine, has not only increased programmer's workload greatly, and can not guarantee the compatibility between each system.

Summary of the invention

The multiple standard of using at present Single Chip Microcomputer (SCM) system, the problem that is difficult to seek unity of action, also in order to expand the effective utilization of single-chip microcomputer, especially the single-chip microcomputer of program curing is carried out program upgrade, the present invention proposes a kind of novel program coding method and it is characterized in that:

Set some program code contents fragments on the number of address section of the memory block of the storage data in Single Chip Microcomputer (SCM) system, the start address positional information of the program segment that constitutes with the some machine codes of depositing in the Single Chip Microcomputer (SCM) program memory block of specific structure appointment in these program code contents fragments and interface data for these program segments energy operate as normal are provided with this single-chip microcomputer;

The described program code contents fragment that is stored in the memory block of storage data of single-chip microcomputer visit, when the information that obtains next step the machine code section that is stored in program storage area that must carry out, just carry out this machine code section, finish up to the described pairing task of program code contents fragment that is stored in the memory block of storage data.

A described complete routine code segment that is stored in the program code contents fragment of the memory block of storing data, at least the declaratives that comprise this section code, these declaratives are firsts of this section code, be placed on the beginning part of this section code, these declaratives comprise sign, length, and other information that need illustrate of this section code.

A described complete routine code segment that is stored in the program code contents fragment of the memory block of storing data comprises the entity part of this section code at least, this entity part is made up of statement code one by one, and each statement code is corresponding to a higher level lanquage statement of being explained with memonic symbols such as literal and symbols.An entity part comprises so a kind of statement code at least: the interface data that this statement code comprises the start address positional information of the program segment that one group of machine code by this single-chip microcomputer of depositing in the program storage area of single-chip microcomputer constitutes at least and can operate as normal provides for this program segment, single-chip microcomputer is carried out it after this statement code of visit obtains the start address of this program segment that is made of machine code, if and some fragment of this statement code is when being treated as machine language code, single-chip microcomputer is carried out the function that these machine language codes can not realize that this statement code will be finished.An entity part comprises so a kind of statement code at least: this statement code comprises the information that one group of data is used to indicate next step other statement code that will move at least; And if these group data are when just representing the sequence number of statement code sequencing, the complete contents of program code segment of this section that has then comprised this entity part also comprises a statement index part at least; This statement index part has comprised the start position information of some special sentence codes of this entity part at least, does not carry out the next statement code that is close in proper order and next step statement code of palpus execution after some statement code that these special statement codes are these entity part executes.

According to the program code that the present invention worked out, because can deposit in the memory block of the storage data that single-chip microcomputer can read, break through the program code of single-chip microcomputer in the past and must be placed on restriction in the addressable program storage area of this single-chip microcomputer, thereby realized the purpose in single-chip microcomputer extender space.For needing dynamic updating programe or to the Single Chip Microcomputer (SCM) system of the single-chip microcomputer ROMPaq of having solidified, no matter whether this single-chip microcomputer has the external program expanded function, by selecting suitable external memory storage, this single-chip microcomputer is by input, output port or universal serial bus or other external interface, interface requirement by this external memory storage links to each other with this external memory storage, the realization machine code section of some basic functions that current application program is required is put into the program of curing, and preestablishes the condition that has ROMPaq in this external memory storage in the curing code of this external memory storage of visit.When the needs ROMPaq, to put into this external memory storage according to the program code that is used for upgrading that the present invention worked out, and this external memory storage is encased in this Single Chip Microcomputer (SCM) system, can realize dynamic updating programe like this and to the purpose of the single-chip microcomputer ROMPaq of having solidified.Since deposit in the memory block of storage data of Single Chip Microcomputer (SCM) system according to the content of the program code segments that the present invention worked out can be not because of the variation of single-chip microcomputer kind changes, thereby can realize the purpose that same program code moves on different types of single-chip microcomputer platform.

Description of drawings

The single-chip microcomputer storage inside structural representation of Fig. 1-embodiment 1

Among the figure, the inner 64 kilobyte program read-only memories of 1-

The inner 1,936 thousand joint growth data storeies of 2-

The operation result of Fig. 2-embodiment 1

The single-chip microcomputer of Fig. 3-embodiment 2 and the connection diagram of exented memory

The operation result of Fig. 4-embodiment 2

Specific embodiment

Embodiment 1:

Present embodiment is an example with the HMC83753 mcu programming of HMC company, and a kind of 8 coding methods on the single-chip microcomputer that are used in are provided.

As shown in Figure 1, the HMC83753 single-chip microcomputer has the internal processes ROM (read-only memory) of 64 kilobyte and the internal data ROM (read-only memory) of 1936 kilobyte, program code according to the present invention's establishment can place the internal data ROM (read-only memory), can realize the program space is expanded to from 64 kilobyte the purpose of 2000 kilobyte.

A higher level lanquage statement is as follows:

Displaycin 00 00 is " go up and combine " 201ah move 42 " width of cloth " 201ah

Nextline " gold " 201ah move 60h " hundred million "

Nextline " height " 201ah move 42 " " code 1ah yesterday

Nextline " low " 201ah move 42 " the present " code lah;

Be placed on the program code that utilizes this coding method establishment in the internal extended data-carrier store:

DB? 00H，02H， 00H，39H，? 02H，13H，00H

The row total length program address of higher level lanquage statement

DB? 00H， 00H， 0DH，66H，? 12H，96H，? 20H，1AH

The initial row of initial row liquid crystal display of liquid crystal display number show " on " demonstration " combines " demonstration ": "

DB 90H，2AH， 06H，F4H， 20H，1AH，? 91H，00H

The 2AH length that moves to right shows " width of cloth " demonstration ": " line feed

DB? 09H，1FH，? 20H，1AH， 90H，60H，? 10H，BFH

Show " gold " demonstrations ": " the 60H demonstration " hundred million " that moves to right

DB? 91H，00H，? 07H，38H， 20H，1AH，? 90H，2AH

Line feed shows " height " demonstration ": " 2AH that moves to right

DB? 12H，ADH，? 20H，1AH， 91H，00H，? 06H，0CH

Show that " yesterday " demonstration ": " line feed shows " low "

DB? 20H，1AH，? 90H，2AH， 09H，20H，? 20H，1AH

Show that ": " line feed shows " the present " demonstration ": "

DB? FFH

The expression display routine finishes

Put into following assembly routine among the inner read-only program memory address 001302H:

gm_start_tpp?equ?80h

gm_start_tph?equ?81h

gm_start_tpl?equ?82h

gm_tpp?equ?83h

gm_tph?equ?84h

gm_tpl?equ?85h

gm_up?equ?86h

gm_down?equ?87h

gm_pp?equ?88h

gm_dp?equ?89h

gm_fb_pp?equ?8ah

gm_fb_dp?equ?8bh

gm_spp?equ?8ch

gm_sdp?equ?8dh

gm_page?equ?8eh

gm_row?equ?8fh

gm_mode?equ?90h

gm_judge?equ?91h

gm_emptyl?equ?92h

gm_empty2?equ?93h

gm_empty3?equ?94h

gm_shift?equ?95h

mode：

1da0?M60h

sta0?M12h

lda0?M61h

；lda?#70h

sta0?M11h

1da0?M62h

sta0?M10h

lda?#00h

sta?r_pp

call?keyscan

sta0?M90h

lda?#00h

sta?r_pp

call?keyscan

sta0?M8ah

lda?#00h

sta?r_pp

call?keyscan

sta0?M8bh

lda0?M8ah

sta?r_pp

lda0?M8bh

sta?r_dp

lda?i

anda?#0cfh

sta?i

lda0?M90h

cmpe?#01h

brz?gml

cmpe?#02h

brz?gm2

cmpe?#03h

brz?gm3

br?gm_erro

gm_over：

lda0?M8ah

sta?r_pp

lda0?M8bh

sta?r_dp

lda?i

ora?#10h

sta?i

ret

gm_erro：

lda0?M8ah

sta?r_pp

lda0?M8bh

sta?r_dp

lda?i

ora?#20h

sta?i

ret

gm_exit：

ret

gml：

lda?#00h

sta0?M8ch

lda?#0a0h

sta0?M8dh

lda?#00h

sta?r_pp

call?keyscan

adda?#0b0h

sta0?M8eh

lda?#00h

sta?r_pp

call?keyscan

sta0?M8fh

lda0?M12h

sta0?M80h

lda0?M11h

sta0?M81h

lda0?M10h

sta0?M82h

lda0?M8ch

sta?r_pp

lda0?M8dh

sta?r_dp

lda0?M8eh

sta?i

lda0?M8dh

inca

sta0?M8dh

sta?r_dp

lda0?M8fh

sta?i

lda0?M8dh

inca

sta0?M8dh

sta?r_dp

lda0?M12h

sta?i

lda0?M8dh

inca

sta0?M8dh

sta?r_dp

lda0?M11h

sta?i

lda0?M8dh

inca

sta0?M8dh

sta?r_dp

lda0?M10h

sta?i

lda0?M8dh

inca

sta0?M8dh

lda?#11h

sta0?M87h

sta0?M86h

lda?#00h

sta?r_pp

call?gm1_disp

lda0?M91h

cmpe?#00h

brz?gm1_one

cmpe?#02h

brz?gm_erro

lda?#00h

sta0?M87h

lda?#00h

sta?r_pp

lda?#0bh

sta?M21h

lda?#0b7h

sta?M26h

lda?#18h

sta?M27h

lda?#00h

sta?M28h

lda?#00h

sta?r_pp

call?disp_keyl

gml_one：

lda?#00h

sta?r_pp

sta?M21h

gml_1：lda?M21h

cmpe?#00h

brz?gml_1

cmpe?#69h

brnz?gml_2

br?gm_exit

gml_2：cmpe?#0bh

brnz?gml_3

lda0?M87h

cmpe?#11h

brz?gml_4

lda?#00h

sta?r_pp

call?clear

lda?#11h

sta0?M87h

sta0?M86h

lda0?M8dh

suba?#05h

sta0?M8dh

lda0?M8ch

sta?r_pp

lda0?M8dh

sta?r_dp

lda?i

sta0?M8eh

lda0?M8dh

inca

sta0?M8dh

sta?r_dp

lda?i

sta0?M8fh

lda0?M8dh

inca

sta0?M8dh

sta?r_dp

lda?i

sta0?M12h

lda0?M8dh

inca

sta0?M8dh

sta?r_dp

lda?i

sta0?M11h

lda0?M8dh

inca

sta0?M8dh

sta?r_dp

lda?i

sta0?M10h

lda0?M8dh

inca

sta0?M8dh

call?gml_disp

lda?#00h

sta0?M86h

lda?#00h

sta?r_pp

lda?#0dh

sta?M21h

lda?#0b0h

sta?M26h

lda?#18h

sta?M27h

lda?#00h

sta?M28h

lda?#00h

sta?r_pp

call?disp_keyl

lda0?M91h

cmpe?#00h

brz?gml_4

cmpe?#02h

brz?gm_erro

lda?#00h

sta0?M87h

lda?#00h

sta?r_pp

lda?#0bh

sta?M21h

lda?#0b7h

sta?M26h

lda?#18h

sta?M27h

lda?#00h

sta?M28h

lda?#00h

sta?r_pp

call?disp_keyl

br?gm1_4

gml_3：cmpe?#0dh

brnz?gml_4

lda0?M86h

cmpe?#11h

brz?gml_4

lda?#00h

sta?r_pp

call?clear

lda?#11h

sta0?M87h

sta0?M86h

lda0?M8dh

suba?#0fh

sta0?M8dh

lda0?M8ch

sta?r_pp

lda0?M8dh

sta?r_dp

lda?i

sta0?M8eh

lda0?M8dh

inca

sta0?M8dh

sta?r_dp

lda?i

sta0?M8fh

lda0?M8dh

inca

sta0?M8dh

sta?r_dp

lda?i

sta0?M12h

lda0?M8dh

inca

sta0?M8dh

sta?r_dp

lda?i

sta0?M11h

lda0?M8dh

inca

sta0?M8dh

sta?r_dp

lda?i

sta0?M10h

lda0?M8dh

inca

sta0?M8dh

lda?#00h

sta?r_pp

lda0?M12h

cmpe?M80h

brnz?gm1_31

lda0?M11h

cmpe?M81h

brnz?gm1_31

lda0?M10h

cmpe?M82h

brnz?gml_31

br?gml_32

gml_31：1da?#00h

sta0?M86h

lda?#00h

sta?r_pp

lda?#0dh

sta?M21h

lda?#0b0h

sta?M26h

lda?#18h

sta?M27h

lda?#00h

sta?M28h

lda?#00h

sta?r_pp

call?disp_keyl

gml_32：call?gml_disp

lda?#00h

sta0?M87h

lda?#00h

sta?r_pp

lda?#0bh

sta?M2lh

lda?#0b7h

sta?M26h

lda?#18h

sta?M27h

lda?#00h

sta?M28h

lda?#00h

sta?r_pp

call?disp_keyl

lda0?M91h

cmpe?#01h

brnz?gm_erro

gml_4：lda?#00h

sta?M21h

br?gml_1

gm2：

lda?#00h

sta?r_pp

call?keyscan

adda?#0b0h

sta0?M8eh

lda?#00h

sta?r_pp

call?keyscan

sta0?M8fh

lda?#00h

sta?r_pp

call?gm_h_disp

lda0?M91h

cmpe?#00h

brz?gm_exit

cmpe?#01h

brz?gm_over

br?gm_erro

gm3：lda?#00h

sta?r_pp

call?keyscan

adda?#0b0h

sta0?M8eh

lda?#00h

sta?r_pp

call?keyscan

sta0?M8fh

lda?#00h

sta?r_pp

call?keyscan

cmpe?#01h

brz?gm3_high

cmpe?#02h

brz?gm3_low

cmpe?#03h

brz?gm3_dp

br?gm_erro

gm3_high：

lda?#00h

sta?r_pp

call?keyscan

sta0?M92h

lda?#00h

sta?r_pp

call?keyscan

sta0?M93h

lda?#00h

sta?r_pp

call?keyscan

sta0?M94h

lda0?M92h

sta0?M12h

lda0?M93h

sta0?M11h

lda0?M94h

sta0?M10h

call?gm_h_disp

lda0?M91h

cmpe?#00h

brz?gm_exit

cmpe?#01h

brz?gm_over

br?gm_erro

gm3_low：lda?#00h

sta?r_pp

call?keyscan

lda?#00h

sta0?M92h

lda?#00h

sta?r_pp

call?keyscan

sta0?M93h

lda?#00h

sta?r_pp

call?keyscan

sta0?M94h

lda0?M92h

sta0?M12h

lda0?M93h

sta0?M11h

lda0?M94h

sta0?M10h

call?gml_disp

lda0?M91h

cmpe?#00h

brz?gm_exit

cmpe?#01h

brz?gm_over

br?gm_erro

gm3_dp：lda?#00h

sta?r_pp

call?keyscan

lda?#00h

sta?r_pp

call?keyscan

sta0?M93h

lda?#00h

sta?r_pp

call?keyscan

sta0?M94h

lda0?M93h

sta0?M88h

lda0?M94h

sta0?M89h

br?gm_ram_disp

Last display result as shown in Figure 2.

Embodiment 2:

Present embodiment is an example with the MPD784216 single-chip microcomputer of NEC Corporation, and a kind of 16 coding methods on the single-chip microcomputer that operate in are provided.

As shown in Figure 3, after having only μ 784216 chips of the NEC Corporation of 1000 kilobyte external program expanded functions to touch curing as salting down, with be distributed in being connected of outside FLASH type external memory storage in the printed board in advance, this FLASH type external memory storage has 2000 kilobytes of memory, when the needs ROMPaq, program code according to the present invention's establishment is put in the FLASH storer of this outside, can realize the ROMPaq of maximum 2000 kilobyte.

Among Fig. 3, μ 784216 pin of chip functions are as follows:

PIN48 to PIN55 corresponding A 0 is to A7

PIN56 to PIN63 corresponding A D0 to AD7

PIN64 to PIN71 corresponding A 8 is to A15

PIN73 to PIN76 corresponding A 16 is to A19

The corresponding RD of PIN77 to PIN79, WR, WAIT

A higher level lanquage statement is as follows:

Displaycin (3,1) is " wait computer data " 00d1h 00d2h;

Be placed on the program code that utilizes this coding method establishment of the FLASH type storer of 2000 outside kilobyte:

DB? 02h，00H， 25H，00H，? 78H，05H，00H， 20H，0FDH，0FH， 17H，

Higher level lanquage statement line total length program address interface data address date total length

DB? 40H，0FEH，0FH， 03H， 01H， 07h，06H，

Number demonstration of the initial row of the initial row liquid crystal display of program run situation feedback addresses liquid crystal display " etc. "

DB? 0DEH，05H，? 26H，06H， 95H，0BH， 0F2H，0DH 6AH，09H，

Demonstration " treating " demonstration " " demonstration " brain " demonstration " number " demonstration " according to "

DB? 0D1H，00H，? 0D2H，00H，? 0FFh，0FFH

It is as follows to show that "-" shows that "-" expression display routine finishes to put into assembly routine among the inner read-only program memory address 000578H:

Assembly listing:

Row row address code source program

1 1 NAME axsn

2 2

3 3 public?axsz

4 4 extrn?lcd_lin，lcd_vol，key_code，disp_code

5 5 extrn?disp_one，disp_key

6 6 extrn inter1，inter4，inter5，inter6，inter7，lcd_volmax，lcd_linmax

7 7 (000FFD80) axsdz equ 0ffd80h

8 8 ------ CSEG

9 9

10 10?000000 axsz：

11 11?000000 49 push?psw

12 12?000001 05AA sel?rb2

13 13?000003?B900 mov a，#00h

14 14?000005?R3C07B000 mov [％inter1]，a

15 15?000009?R38DB000000 movg tde，#inter7

16 16?00000E?R38BB000000 movg uup，#inter6

17 17?000013?R3C6F0001 cmp inter4，#01h

18 18?000017?8330 bc $axs_err

19 19?000019?R3C6F0000 cmp inter4，#lcd_linmax

20 20?00001D?8302 bc $axs_8

21 21?00001F?8028 bnz $axs_err

22 22?000021 axs_8：

23 23?000021?R3C6F0001 cmp inter5，#01h

24 24?000025?8322 bc $axs_err

25 25?000027?R3C6F0000 cmp inter5，#lcd_volmax

26 26?00002B?8302 bc $axs_6

27 27?00002D?801A bnz $axs_err

28 28?00002F axs_6：

29 29?00002F?R3C6F00FF cmp inter7，#0ffh

30 30?000033?8120 bz $axs_ret

31 31?000035?R3C6F0020 cmp inter7，#20h

32 32?000039?8335 bc $axs_1

33 33?00003B?811A bz $axs_2

34 34?00003D?R3C6F0090 cmp inter7，#90h

35 35?000041?8117 bz $axs_3

36 36?000043?R3C6F0091 cmp inter7，#91h

37 37?000047?8117 bz $axs_4

38 38?000049 axs_err：

39 39?000049?R38F900 movg whl，inter1

40 40?00004C?3D8F set1 [whl]，7

41 41?00004E?1405 br $axs_ret

42 42?000050 axs_err2：

43 43?000050?R38F900 movg whl，inter1

44 44?000053?3D8D set1 [whl]，5

45 45?000055 axs_ret：

46 46?000055?48 pop?psw

47 47?000056?56 ret

48 48?000057 axs_2：

49 49?000057?436200 br $！axs_2a

50 50?00005A axs_3：

51 51?00005A?R2A380000 add inter5，inter6

52 52?00005E?143D br $axs_9

53 53?000060 axs?4：

54 54?000060?R3C6F0000 cmp inter6，#00h

55 55?000064?81EA bz $axs_err2

56 56?000066?R2A300000 mov inter5，inter6

57 57?00006A?R3C680002 add inter4，#02h

58 58?00006E?142D br $axs_9

59 59?000070 axs_1：

60 60?000070?RB900 mov a，#lcd_volmax

61 61?000072?R7A1100 sub a，inter5

62 62?000075?8304 bc $axs_al

63 63?000077?AF0F cmp a，#0fh

64 64?000079?8208 bnc $axs_5

65 65?00007B axs_al：

66 66?00007B?R3C3A0001 mov inter5，#01h

67 67?00007F?R3C680002 add inter4，#02h

68 68?000083 axs_5：

69 69?000083?R3C6F0000 cmp inter4，#1cd_linmax

70 70?000087?8265 bnc $axs_err1

71 71?000089?R2A300000 mov lcd_lin，inter4

72 72?00008D?R2A300000 mov lcd_vol，inter5

73 73?000091?R2AB00000 movw disp?code，inter6

74 74?000095?R09F00000 call ！！disp_one

75 75?000099?R3C680010 add inter5，#10h

76 76?00009D axs_9：

77 77?00009D?78DB020000 addg tde，#02h

78 78?0000A2?78BB020000 addg uup，#02h

79 79?0000A7?38DC80 movg axsdz，tde

80 80?0000AA?073080 mov a，[％axsdz]

81 81?0000AD?R381500 mov inter7，a

82 82?0000B0?38BC80 movg axsdz，uup

83 83?0000B3?073080 mov a，[％axsdz]

84 84?0000B6?R381500 mov inter6，a

85 85?0000B9?4373FF br $！axs_6

86 86?0000BC axs_2a：

87 87?0000BC?RB900 mov a，#lcd_volmax

88 88?0000BE?R7A1100 sub a，inter5

89 89?0000C1?8304 bc $axs_a2

90 90?0000C3?AF05 cmp a，#05h

91 91?0000C5?8208 bnc $axs_7

92 92?0000C7 axs_a2：

93 93?0000C7?R3C3A0001 mov inter5，#01h

94 94?0000CB?R3C680002 add inter4，#02h

95 95?0000CF axs_7：

96 96?0000CF?R3C6F0000 cmp inter4，#lcd_linmax

97 97?0000D3 8219 bnc $axs_err1

98 98?0000D5?R2A300000 mov lcd_lin，inter4

99 99?0000D9?R3C2600 inc lcd_lin

100 100?0000DC?R2A300000 mov lcd_vol，inter5

101 101?0000E0?R2A300000 mov key_code，inter6

102 102?0000E4?R09F00000 call ！！disp_key

103 103?0000E8?R3C680005 add inter5，#05h

104 104?0000EC?14AF br $axs_9

105 105?0000EE axs_errl：

106 106?0000EE?R38F900 movg whl，interl

107 107?0000F1?3D8E setl [whl].6

108 108?0000F3?435FFF br $！axs_ret

109 109 ；----------------

110 110 END

Status information:

Target?chip：uPD784216

Device?file：V1.11

Assembly?complete，0?error(s)and?0?warning(s)found.(0)

Last liquid crystal display as shown in Figure 4.

Claims

1, the program coding method of a kind of extender storage space and dynamic updating programe is characterized in that:

Set some program code contents fragments on the number of address section of the memory block of the storage data in Single Chip Microcomputer (SCM) system, the start address positional information of the program segment that constitutes with the some machine codes of depositing in the Single Chip Microcomputer (SCM) program memory block of specific structure appointment in the described program code contents fragment and interface data for these program segments energy operate as normal are provided with this single-chip microcomputer;

2, the program coding method of a kind of extender storage space as claimed in claim 1 and dynamic updating programe is characterized in that:

The described program code contents fragment that is stored in the memory block of storage data, at least the declaratives that comprise this section code, these declaratives are firsts of this section code, be placed on the beginning part of this section code, these declaratives comprise sign, length, and other information that need illustrate of this section code;

The described program code contents fragment that is stored in the memory block of storage data, at least the entity part that comprises this section code, this entity part is made up of statement code one by one, and each statement code is corresponding to a higher level lanquage statement of being explained with memonic symbols such as literal and symbols.

3, the entity part of program code contents fragment as claimed in claim 2 is characterized in that:

An entity part comprises so a kind of statement code at least: the interface data that this statement code comprises the start address positional information of the program segment that one group of machine code by this single-chip microcomputer of depositing in the program storage area of single-chip microcomputer constitutes at least and can operate as normal provides for this program segment, single-chip microcomputer are carried out it obtain the start address of this program segment that is made of machine code at this statement code of visit after.

4, the entity part of program code contents fragment as claimed in claim 2 is characterized in that:

An entity part comprises so a kind of statement code at least: this statement code comprises the information that one group of data is used to indicate next step other statement code that will move at least.

5, the entity part of program code contents fragment as claimed in claim 3 is characterized in that:

If when described some fragment that comprises the statement code of start address positional information and interface data was treated as machine language code, single-chip microcomputer was carried out the function that these machine language codes can not realize that this statement code will be finished.

6, the entity part of program code contents fragment as claimed in claim 4 is characterized in that:

If when the described data that comprise the information that is used to indicate next step other statement code that will move were just represented the sequence number of statement code sequencing, the complete contents of program code segment of this section that has then comprised this entity part also comprised a statement index part at least.

7, the entity part of program code contents fragment as claimed in claim 6 is characterized in that:

Described statement index part has comprised the start position information of some special sentence codes of this entity part at least, does not carry out the next statement code that is close in proper order and next step statement code of palpus execution after some statement code that these special statement codes are these entity part executes.