• use local variable(overlayable data segment) in assembly language
    i write a test program, i want to use a local variable in a assembly language. if i use c language,local variable can be overlayable,but use assembly language,it cannot pass. The overlayable segment...
  • problem with A51 OVERLAYABLE
    the line ?PR?SignMemRel?USXASM SEGMENT CODE OVERLAYABLE gives *** ERROR #26 IN 27 (USXASM.A51, LINE 21): BAD RELOCATION TYPE I have read the info in both the A51 and C51 manuals and do not see why...
  • a problem in using overlayable variables
    I have a project which include a source file sub.c. In Sub.c I wrote a lot of subroutines independently with each other. In each subroutin I define several local variables. The variables in these subroutines...
  • Shared data variable?
    Hi, I have a question about shared memory... I have a bootloader and a program running on a 8051 (different projects,burnt together on the chip at different locations) and I need them to share a...
  • To share macros
    Hello!!! I program in A51 with C8051F020. In my program, I use several modules. And in thes modules, I created some macros. My question is : How is it possible to share macros from one module...