// Perform read/write/verify using new-style "int13ext" accesses.
static void noinline
extended_access(struct bregs *regs, struct drive_s *drive_g, u16 command)
{
struct disk_op_s dop;
// Get lba and check.
dop.lba = GET_INT13EXT(regs, lba);
dop.command = command;
dop.drive_g = drive_g;
if (dop.lba >= GET_GLOBAL(drive_g->sectors)) {
warn_invalid(regs);
disk_ret(regs, DISK_RET_EPARAM);
return;
}
dop.buf_fl = SEGOFF_TO_FLATPTR(GET_INT13EXT(regs, data));
dop.count = GET_INT13EXT(regs, count);
if (! dop.count) {
// Nothing to do.
disk_ret(regs, DISK_RET_SUCCESS);
return;
}
int status = send_disk_op(&dop);
SET_INT13EXT(regs, count, dop.count);
disk_ret(regs, status);
}
// Perform read/write/verify using new-style "int13ext" accesses.
static void
extended_access(struct bregs *regs, struct drive_s *drive_g, u16 command)
{
struct disk_op_s dop;
// Get lba and check.
dop.lba = GET_INT13EXT(regs, lba);
dop.command = command;
dop.drive_g = drive_g;
if (dop.lba >= GET_GLOBAL(drive_g->sectors)) {
dprintf(1, "int13_harddisk: function %02x. LBA out of range\n"
, regs->ah);
disk_ret(regs, DISK_RET_EPARAM);
return;
}
dop.buf_fl = SEGOFF_TO_FLATPTR(GET_INT13EXT(regs, data));
dop.count = GET_INT13EXT(regs, count);
int status = send_disk_op(&dop);
SET_INT13EXT(regs, count, dop.count);
disk_ret(regs, status);
}