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+---- Thread: Help understand where things end up in memory (/showthread.php?tid=799)
Help understand where things end up in memory - emook - 2017-03-12
Hello,
I've been using ZXBC for some projects I am doing, one of the things is that I working with very limited memory. I'm writing my code to start at 25000.
When I am doing an ASM include no matter where in the code I place it, there is still ZXBC code after.
If I place all my inlcudes at the end of my program, they still appear around 40-50 bytes in. I need to be able to tag the includes on at the end of the file, not in the middle as once I have moved them to another located they can be discarded but with ZXBC code appear AFTER the includes it means I keep running into trouble.
I know about ORG in ASM but I'd rather ZXBC obey me when I have a include as the last lines to see in memory that it also appears at the end of the code.
Any ideas?
Re: Help understand where things end up in memory - Luzie - 2017-10-25
I have a similar question:
How can I discover the size /end of the program ZXB compiles? I can have a look at size of.TAP-file created.
But more userfriendly would be if ZXB.EXE prints length or start and end when compiling ends. May I suggest this to be added to future ZXB versions? :lol:
Re: Help understand where things end up in memory - boriel - 2017-10-26
You can supply the --mmap=memory_map.txt file to the compiler, it will display a list of all the labels and their respective memory addresses.
Or also compile with -dd (or -ddd the more d's the more info). It will display all assembler instructions with it's resulting address.
Does this help?? :roll:
Re: Help understand where things end up in memory - Luzie - 2017-10-27
boriel Wrote:You can supply the --mmap=memory_map.txt file to the compiler, it will display a list of all the labels and their respective memory addresses.Yes. I like --mmap=memory_map.txt !
Or also compile with -dd (or -ddd the more d's the more info). It will display all assembler instructions with it's resulting address.
Does this help?? :roll:
I know I should better read Help before posting ;-)
But one thing about it: Can you please add an option to generate a Memory-Map with decimal adresses instead of hex adresses?
Re: Help understand where things end up in memory - boriel - 2017-10-27
Ok. Will take that into account.
Also, remember that in ZX Basic you can use hex numbers directly with any of these formats: 0xNNNN, 0NNNNh