• XDATA SPACE MEMORY OVERLAP
    I am specifying some absolute addressed variables in the XDATA space using the _at_ keyword. I am pretty sure not more than 1 variable accesses the same location. I am able to compile my project, however...
  • xdata space memory overlap
    I am facing a problem of memory mapping .I have assigned the xdata start in the startup.a51 file at 0c000H with length 1000h bytes .I have also tried configuring the linker with xdata allocation .Do i...
  • xdata space memory overlap
    Dear Sir, I am facing a problem with my specific address allocation of variables in memory.I am using Philips 89c51rd2 with external ram starting at address 0xc000 with 4kb memory.i need to assign variables...
  • XRAM, XDATA adress space overlap
    NXP(Philips) P89v51RD2 has extra 768bytes of internal data memory (XRAM) that is accessed indirectly with MOVX instruction. Address range for XRAM is 0x0000h to 0x02ffh. The external data memory...
  • what's the affect of XDATA space memory overlap?
    what's the affect of XDATA space memory overlap? I have 128 Kbytes of external ram so I use 17 Address buses and switch between 2 pages of ram by A17. I use _at_ for some data that I want to fix at...