cvs commit: src/sys/boot/i386/boot0 boot0.s

Matthew Dillon dillon at
Sun Jul 18 11:27:24 PDT 2004

dillon      2004/07/18 11:26:33 PDT

DragonFly src repository

  Modified files:
    sys/boot/i386/boot0  boot0.s 
  Brute force a register save/restore for int 0x13 (disk I/O) and 0x10 (putchar)
  by using pusha/popa.  Don't trust the BIOS to properly save and restore
  Note that the TICKS check for boot0 currently still depends on %di being
  retained across two BIOS calls.  More code reorganization is required to
  make a save/restore fit in the space available.
  Revision  Changes    Path
  1.4       +27 -20    src/sys/boot/i386/boot0/boot0.s

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