ZX Review #11-12
26 ноября 1997 |
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New Programs - Overview of programs and FASTzasm @-zasm.
(C) Ivan Roshchin, Moscow, 1997 WARNING! Described here programs are intended for use only in conjunction with assembler ZX ASM 3.0! Surely each encoder is known, this situation: you've typed the text of a program assembly language, compile it, launched, and the computer freezes or folded. Well, if you make that you saved the source code on the disk, and if not? Then there is only ... run "FASTzasm" or "@-zasm"! The fact that the so-called "reset" the computer - not that other than the transfer of control of zero address in the ROM-48. When This is cleared only 48-I memory, assembler, debugger and the text of your program remain intact. Freezing computer and 99% of the does not lead to loss of source program text. Thus, suppose after a failed running all over cleaning the screen and the appearance of familiar characters: (C) 1982 Sinclair Research Ltd Your next steps should be: - To collect RANDOMIZE USR 15616; - Execute a command TR-DOS: RUN "FASTzasm" (You can run this program from any boot'a, which does not spoil 128-th memory); - FASTzasm restore the contents my memory at # 5B00 # 6000 (resident part of ac Sembler, a stack) and perezapus Titus assembler (which remains Camping in the 128-th memory) after Th first you will be able to continue pa bot. If FASTzasm not detected ruzhit in memory of anything like On to the assembler, it is simply issue an appropriate community generalization and will be released in TR-DOS. If the computer is dropped, When you debug your program with the help of STS'a may be that the screen remains active in the 7 th memory bank. In this case for the inclusion of a standard screen will have to blindly type the command: OUT 32765,16 It makes sense to use FASTzasm resetting the computer even if you keep the original copy of its program. Firstly, the launch will be faster, but Second, do not have to re- load the text and set parameters in assembler and debugger. We also consider the following situation: you are debugging a large program consisting of several files, and change one or the another file. So, if you try write another text file to disk, the message "Disk full!". This happens because at disk formed a lot of deleted files and free disk space left. Must be sealed drive, but how? When trying to call from the ZX ASM'a TRDOS and execute the command MOVE you get the message "Out of RAM". And to raise the stack above # 6000 impossible - to destroy the resident part of the assembly! You can, of course, temporarily write the file to another disc, press the RESET, condense the original disk and copy files to it, then start the ZX ASM, and finally proceed. But too much is long ... This problem is easily solved by FASTzasm: you just get out of the ZX ASM in BASIC, are not Save the text file, and quietly typing RANDOMIZE USR 0. After that, compact discs (Using the MOVE command or file a shell that does not use 128-th memory) and start FASTzasm, which will restore a resident of the ZX ASM'a and run it. Then you can write a text file on disk. If ZX ASM, FASTzasm and file shells are on the same drive, where the working files - you do not even have to change discs in the drive! Now let's talk about the "freeze". The best remedy in this situation - the button MAGIC. Once the contents of memory written to disk, press RESET and run the program "@-Zasm". By the way, if you're wondering why hang your program, I can advise vat @ download the resulting file in from the the Rapporteur "STS5.1 + @" (this is the usual STS, I modified so that the retrieval Re @ file, it sets the contents CPU registers such as it was at the time of pressing MAGIC). @-Zasm ask you to insert disc recorded as a result of pressing MAGIC files. Press any key, and start reading those files. If the no hard drive @ files or those files are not relevant to ZX ASM'u, the program will "ZX ASM NOT FOUND IN MEMORY!" and will be released in TR-DOS. After a successful reading @ Files, the program will ask you Last question - whether you want to delete these files from the disk. If need, press "Y". Then wait for a while, and finally run the assembler. When the program is in the @-zasm memory is read only content, 1,3,4,6 and 7 of the memory banks, and in the 48-th memory is restored only the resident part of an assembly, and stack. *
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