as i am an oldie in ASM, but i would like to "convert" to C i need some tips.
I would like to recycle my modules written in assembly. I tried to define a header file (xx.h) and i also have
modified the xx.asm module. his works fine, but how can i make my modules universal like i am used with asm.
Here the example:
Lets say the module uses a port for setting a bit. The port is named TST_PRT and the bits are defined in the
module. By including the module the TST_PRT is assigned in the main program, so the module is usable by
different programs and/or different MPU's.
The asm module could look like:
XREF.B TST_PRT ;the port
XREF.B TST_z ;a counter
;TST_PRT ;the TAST port, defined in the main program
TST_C0 EQU 0 ;the bit definition for easyer access
TST_C1 EQU 1
TST_C2 EQU 2
TST_C3 EQU 4
;....and so on
TAST: ;the routine
BSET TST_C1,TST_PRT ;set the TST_C1 bit
TASTE: ;end of the routine
So far so good. I have now tried to write a tst.h header file looking like:
#define TST_PRT PTAD
#pragma DATA_SEG __SHORT_SEG MY_ZEROPAGE
byte TST_z; / *the counter in the zero page */
void TAST(void); /*the entry point of the routine */
So and here my question: how do i have to define/redefine TST_PRT so it will be PTAD?
The above header does not work, the TST_PRT is not found by the linker. The rest of the header works this way.
Thanks for some advices
Message Edited by CrasyCat on 2007-04-13 10:46 AM