Post by thread:Antwort: Re: stack check in mplab simulator (5.62

thanks, but i'm not shure if this will work for me, as i use a compiler to generate the assembler code. so i think i have to patch the assembler code, before the compiler forwards it to the assembler?!? thanks tino Scott Dattalo <spam_OUTscottTakeThisOuTDATTALO.COM> Gesendet von: pic microcontroller discussion list <.....PICLISTKILLspam@spam@MITVMA.MIT.EDU> 11.09.02 08:16 Bitte antworten an pic microcontroller discussion list An: PICLISTKILLspamMITVMA.MIT.EDU Kopie: Thema: Re: stack check in mplab simulator (5.62) On Wed, 11 Sep 2002, Martin Buehler wrote: > i simulate my code for a 16f876 using the mplab simulator. > this chip has 8 hardware stack levels. so i think the simulator does > automatically check, that i never use more than 8 levels. > for system integration, i would like to work with the icd, which uses 1 > stack level itself. > how can i reduce the stack size for the simulation to 7, so that i can see > > in the simulation, if i will get problems, using the icd? > i could not find a file, where i can define the number of stack levels. > tino org 0 ifdef SIMULATING_ONLY call $+1 ; push a bogus value onto the stack. endif bra start Is that what you're looking for? Scott -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details. -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.

On Wed, 11 Sep 2002, Martin Buehler wrote: > thanks, but i'm not shure if this will work for me, as i use a compiler to > generate the assembler code. so i think i have to patch the assembler > code, before the compiler forwards it to the assembler?!? > thanks tino void main(void) { #ifdef SIMULATION_ONLY _asm call $+1 _endasm; #endif while(1) my_code_that_crashes(); } I of course used SDCC's inline assembly syntax. I doubt you're using SDCC though. Hopefully your compiler is equipped with a preprocessor and inline assembler. If not you're SOL. Scott -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.

Martin Buehler <.....PICLISTKILLspam.....mitvma.mit.edu> wrote: > > org 0 > > > > ifdef SIMULATING_ONLY > > call $+1 ; push a bogus value onto the stack. > > endif > > bra start > > thanks, but i'm not shure if this will work for me, as i use a > compiler to generate the assembler code. so i think i have to patch > the assembler code, before the compiler forwards it to the > assembler?!? Tino: I think you can do the same thing in C: main() { #ifdef (SIMULATING_ONLY) // Insert these 6 lines main2(); // } // main2() // { // #endif // // ...your existing main() code goes here... } If you're lucky, the compiler won't optimize the extra subroutine call away. -Andy === Andrew Warren -- EraseMEaiwspam_OUTTakeThisOuTcypress.com === Principal Design Engineer === Cypress Semiconductor Corporation === === Opinions expressed above do not === necessarily represent those of === Cypress Semiconductor Corporation -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.

On Tue, 10 Sep 2002, Scott Dattalo wrote: {Quote hidden}> On Wed, 11 Sep 2002, Martin Buehler wrote: > > > thanks, but i'm not shure if this will work for me, as i use a compiler to > > generate the assembler code. so i think i have to patch the assembler > > code, before the compiler forwards it to the assembler?!? > > thanks tino > > void main(void) > { > > #ifdef SIMULATION_ONLY > _asm > call $+1 > _endasm; > > #endif > > while(1) > my_code_that_crashes(); > > } > > > I of course used SDCC's inline assembly syntax. I doubt you're using SDCC > though. Hopefully your compiler is equipped with a preprocessor and inline > assembler. If not you're SOL. -- There's actually an easier way that doesn't involve inline assembly: void main(void) { #ifdef SIMULATION_ONLY bogus_routine(); #endif while(1) my_code_that_crashes(); } void bogus_routine(void) { while(1) my_code_that_crashes(); } Basically, you force an extra call. Now this won't work on SDCC since it'll inline a simple call like this. Scott -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.