mem¶

BIOS/FS scratch, graphics-flag and TPA-base addresses
NAME
    mem - BIOS/FS scratch, graphics-flag and TPA-base addresses
          (//#use mem, ;#use mem)

SYNOPSIS
    //#use mem          C:   cc splices /lib/lib_mem.c
    ;#use mem           asm: mkasm.sh appends /lib/lib_mem.inc

DESCRIPTION
    The command-facing memory addresses -- BIOS/FS scratch, the
    graphics-present flag, and the TPA base -- named as #defines (asm:
    equates) so a command writes a symbol instead of a raw hex address.

    GENERATED. Both lib_mem.c and lib_mem.inc are emitted by
    `generators/gen_memmap.py` from the single-source memory map; do NOT
    edit them by hand. A memory-map move is then one command:

        python3 generators/gen_memmap.py

    and every consumer picks up the new address on its next build.

SELECTED SYMBOLS
    TPABASE   transient program area base (RUNnable programs load here)
    SBUF      sector buffer
    FNAME     12-byte filename (space-padded), for FFIND/FCREATE
    FSRC      FCREATE source address of the file data
    FLEN      file length in bytes (FCREATE in, FFIND out)
    LBA/LBA1/LBA2, DIRLBA   current + directory LBAs
    (plus the graphics-present flag and the other FS scratch cells)

    The exact list is whatever the generator currently emits -- read
    /lib/lib_mem.c (or generators/memmap.h) for the authoritative set.
    I/O port addresses (ACIA, CF-IDE, GL, MDU, PS/2) come from the same
    generator into generators/memmap.h / memmap.inc; BIOS/OS entry points
    are named separately -- see man abi.

SEE ALSO
    abi, dirent