----- Original Message ----- From: "mada" <qmadd@qmad...> To: <m68HC11@m68H...> First of all, it'd be nice if you quoted just the header so we know who you're replying to. > ohohoooooo, i didn't expect this....... > i am very familiar with 8051, avr, ADSP and many other microcontrollers. and i thought i shouldn't have problems with programming a few routines for motorola 6811. so i downloaded the simulator, and some asm files. i tried sim6811 file.asm, but it says "could not open symbol file". I SIM6811 needs a S19 (object) file, similar to the HEX format of other processors. The ASM file is the source code. As you know, you can't have the simulator run source code. The symbol file for the particular simulator refers to a SYM extension file of the same base name with symbols in simple format such as (name, hex value): ONE_SYMBOL C000 ANOTHER_SYMBOL F800 > and another thing: where do i locate buf34.asm? Google! First page, sixth link from top. > One more thing: here's what i have to do: > "Write a program that fills memory with NN from XXXX to YYYY. > Command format: F XXXX YYYY NN" > > what is this suppose to mean? where do i type this command, in the simulator? i may not know too much about motorola, but it doesn't seems logic to me. Thank you all guys, Bye This looks exactly (?) like the command you would type at the Buffalo prompt. Buffalo being BUF34.ASM you already know about. It's a monitor for the 68HC11 written in assembly language. Use the source to extract just the portions that will complete your task. You need some initialization code, a couple of SCI (RS-232) routines, some text to hex conversion and the actual routine that does the filling. Good luck. tonyp@tony...

ohohoooooo, i didn't expect this....... i am very familiar with 8051, avr, ADSP and many other microcontrollers. and i thought i shouldn't have problems with programming a few routines for motorola 6811. so i downloaded the simulator, and some asm files. i tried sim6811 file.asm, but it says "could not open symbol file". I am really sorry for the stupid question, but how do i use this simulator. and another thing: where do i locate buf34.asm? One more thing: here's what i have to do: "Write a program that fills memory with NN from XXXX to YYYY. Command format: F XXXX YYYY NN" what is this suppose to mean? where do i type this command, in the simulator? i may not know too much about motorola, but it doesn't seems logic to me. Thank you all guys, Bye --------------------------------- Yahoo! FareChase - Search multiple travel sites in one click.

yes, but in the simulator, i have to type f xxxx yyyy nn and it should work. is it enough just to write that routine and just type in the main program jsr f? --------------------------------- Yahoo! FareChase - Search multiple travel sites in one click.

----- Original Message ----- From: "qmadd" <qmadd@qmad...> To: <m68HC11@m68H... > Hello Everyone, > i need to implement a subroutine that fills memory form address XXXX > to YYYY with value NN. The command format should be: > F XXXX YYYY NN, > where XXXX and YYYY are the addresses, and NN is the value. how do i > do that? how do i pass arguments to the subroutine? can anyone help > me? Thanks, Bye all Seems to me you need not implement but rather copy the routine from Buffalo source code. Locate BUF34.ASM or similar and you'll only have to isolate a few routines from the larger program. tonyp@tony...

> F XXXX YYYY NN, > where XXXX and YYYY are the addresses, and NN is the value. how do i > do that? the program may look something like this LDX #$XXXX LDAA #$NN LOOP STAA 0,X INX CPX #$YYYY BNE LOOP STAA 0,X > how do i pass arguments to the subroutine? there are quite a lot of methods. The simple one would be save the value into memory location and extract it out in your subroutine. You may utilize the stack as well. But you must be careful with this method. Because the program counter will be stored into stack memory before sub routine is being executed. --------------------------------- Yahoo! FareChase - Search multiple travel sites in one click.

Hello Everyone, i need to implement a subroutine that fills memory form address XXXX to YYYY with value NN. The command format should be: F XXXX YYYY NN, where XXXX and YYYY are the addresses, and NN is the value. how do i do that? how do i pass arguments to the subroutine? can anyone help me? Thanks, Bye all