• A51 Fatal Error Unknown Control
    Im on a new computer, trying to use the A51 assembler. In a command prompt window, I can type "A51 some_file.asm" and the assembler will load, however, it will give me a fatal error with the error being...
  • A51 Documentation
    I see the on-line manuals for A51. Are there pdf's so I can print them out? Does Keil sell these manuals?
  • A51 limits
    Hello, I use a rather old version of A51 (V5.52b) and L51 (V3.52), both MS-DOS executables. Yesterday I got this error from the assembler: A51 FATAL ERROR - ERROR: LIMIT EXCEEDED: TOO MANY EXTERNALS...
  • A51 help!
    Hi, I need to be able to call a c function from within the STARTUP.A51 file (actually, any *.a51 file), so that the code listing has the startup code, then the call of this new function, then the LJMP...
  • Bug in a51
    I habe used by mistake the following line: DW 0000B the line assembles without any error to 0000h Shouldn't there not some kind of error message?