in assembly and in the native will be
have the form:
ASSEMBLER MACHINE CODE COMMENTARY
LD A, (30013) 30000 1958 Worth as a result
Giustra A number
30,001 in 1961 contained in
30002 117 30013 address.
LD B, A 30 003 71 Upload a solution
Giustra B contains
My Registry A
LD A, (30014) 30 004 1958 Download to re
Giustra A number
30,005 in 1962 contained in
30006 117 30014 address.
ADD A, B 30007 128 added to with
derzhimomu A with
derzhimoe registration
RA VI
LD (30015), A 30 008 50 Upload containing
30 009 63 zhimoe register A
30010 117 against 30,015.
NOP 30,011 0 No operation.
RET 30012 201 go back to
where this space
gram causing
las.
Try this program to work. Let
Do you want to add two numbers, say 50 and
70. First, allocate memory for the program in machine code.
10 CLEAR 29999
Now we introduce the program into memory,
starting at address 30000.
20 FOR i = 30000 TO 30012: READ q: POKE i, q:
NEXT i
1930 DATA 58, 61, 117, 71, 58, 62, 117, 128,
50, 63, 117, 0, 201
Write in a cell 30013 and 30014 are the two
numbers that we wish to add:
40 POKE 30013, 50: POKE 30014, 70
Enter the command to execute our program in machine code.
50 RANDOMIZE USR 30000
And finally, we start our BASIC program - RUN.
After a second run for it and
message appears, DC It seems to be
Nothing has changed, but if you check what is in the 30015
cell, then make sure that there is a result of the addition, ie
number 120.
PRINT PEEK 30015 will give you: 120 OK
Thus, we have already met with several
processor commands the Z-80. Now we have to stop this
superpopular exposition, since the system of commands that the
processor is quite extensive and in such an approach would take
her about a thousand pages. We hope that the psychological
You have already overcome the barrier and then we proceed to a
systematic and gradual Development of the instruction processor.
You seem to understand that every team in the native has its
own mnemonic assembler, in which several letters are encoded
operation. K Unfortunately, the literature is usually written
professionals for professionals and they do not bother with
translation into Russian mnemonic language, especially that of
the Z-80 books in Russian are almost no (there are several
departmental transfers). Therefore, "Inforkom" in his "Handbook
.." (Part 3) paid place a dictionary to translate the mnemonic
assembler normal English, but through He and the Russian
language.
In concluding this chapter, several general
comments. Different processors have different instruction sets.
Knowledge of the instruction processor Z-80 does not mean that
You will be able to understand the native other computers
collected at other processors, but exactly what their
development will you dozens of times faster.
Even for only one CPU Z-80
entity has not yet been standardized.
Many of the assembled program, for example,
EDITAS, ZEUS, GENS1 ... GENS3 and others have
deviations in the form of a record of mnemonics, but they
insignificant and always negotiated in
the accompanying instructions to the program.
Lyrics provided by Michael (MIHEICH)
10.07.1999
in assembly and in the native will be
have the form:
ASSEMBLER MACHINE CODE COMMENTARY
LD A, (30013) 30000 1958 Worth as a result
Giustra A number
30,001 in 1961 contained in
30002 117 30013 address.
LD B, A 30 003 71 Upload a solution
Giustra B contains
My Registry A
LD A, (30014) 30 004 1958 Download to re
Giustra A number
30,005 in 1962 contained in
30006 117 30014 address.
ADD A, B 30007 128 added to with
derzhimomu A with
derzhimoe registration
RA VI
LD (30015), A 30 008 50 Upload containing
30 009 63 zhimoe register A
30010 117 against 30,015.
NOP 30,011 0 No operation.
RET 30012 201 go back to
where this space
gram causing
las.
Try this program to work. Let
Do you want to add two numbers, say 50 and
70. First, allocate memory for the program in machine code.
10 CLEAR 29999
Now we introduce the program into memory,
starting at address 30000.
20 FOR i = 30000 TO 30012: READ q: POKE i, q:
NEXT i
1930 DATA 58, 61, 117, 71, 58, 62, 117, 128,
50, 63, 117, 0, 201
Write in a cell 30013 and 30014 are the two
numbers that we wish to add:
40 POKE 30013, 50: POKE 30014, 70
Enter the command to execute our program in machine code.
50 RANDOMIZE USR 30000
And finally, we start our BASIC program - RUN.
After a second run for it and
message appears, DC It seems to be
Nothing has changed, but if you check what is in the 30015
cell, then make sure that there is a result of the addition, ie
number 120.
PRINT PEEK 30015 will give you: 120 OK
Thus, we have already met with several
processor commands the Z-80. Now we have to stop this
superpopular exposition, since the system of commands that the
processor is quite extensive and in such an approach would take
her about a thousand pages. We hope that the psychological
You have already overcome the barrier and then we proceed to a
systematic and gradual Development of the instruction processor.
You seem to understand that every team in the native has its
own mnemonic assembler, in which several letters are encoded
operation. K Unfortunately, the literature is usually written
professionals for professionals and they do not bother with
translation into Russian mnemonic language, especially that of
the Z-80 books in Russian are almost no (there are several
departmental transfers). Therefore, "Inforkom" in his "Handbook
.." (Part 3) paid place a dictionary to translate the mnemonic
assembler normal English, but through He and the Russian
language.
In concluding this chapter, several general
comments. Different processors have different instruction sets.
Knowledge of the instruction processor Z-80 does not mean that
You will be able to understand the native other computers
collected at other processors, but exactly what their
development will you dozens of times faster.
Even for only one CPU Z-80
entity has not yet been standardized.
Many of the assembled program, for example,
EDITAS, ZEUS, GENS1 ... GENS3 and others have
deviations in the form of a record of mnemonics, but they
insignificant and always negotiated in
the accompanying instructions to the program.
Lyrics provided by Michael (MIHEICH)
10.07.1999
