page@swan.ulowell.edu (Bob Page) (11/02/88)
Submitted-by: page@swan.ulowell.edu (Bob Page)
Posting-number: Volume 2, Issue 39
Archive-name: kernel/noklick13.1
[I goofed - forgot to flush the track buffer. See text in comp.sys.amiga.
If you have the original, don't use it, use this version. Sorry! ..Bob]
# This is a shell archive.
# Remove everything above and including the cut line.
# Then run the rest of the file through sh.
#----cut here-----cut here-----cut here-----cut here----#
#!/bin/sh
# shar: Shell Archiver
# Run the following text with /bin/sh to create:
# noklick.c
# This archive created: Wed Nov 2 00:20:46 1988
cat << \SHAR_EOF > noklick.c
/* noKlickStart for 1.3 - version 2! */
/* Bob Page - Nov 1 1988 */
/* the first version didn't flush the track buffer ... mea culpa. */
/* thanks to Bryce Nesbitt for writing noKlickStart for 1.2 */
#include <exec/memory.h>
#include <devices/trackdisk.h>
#include <libraries/dos.h>
#include <libraries/dosextens.h>
#include <stdio.h>
struct MsgPort *diskport = NULL; /* Port for trackdisk replies */
struct MsgPort *CreatePort();
struct IOExtTD *diskreq = NULL; /* Pointer for extended disk commands */
struct IORequest *CreateExtIO();
void *AllocMem();
ULONG *buf;
#ifdef AZTEC_C
_cli_parse() {}
_wb_parse() {}
#endif
main()
{
char s[2];
puts("noKLICKstart V1.3");
puts("Use this on a backup of your V1.3 Kickstart disk.\n");
puts("Insert Kickstart into drive DF0:. Type y then RETURN");
fputs("to continue, or just RETURN to abort. -> ", stdout);
gets(s);
if (s[0] != 'y') exit(10);
diskport = CreatePort(0L,0L);
diskreq = (struct IOExtTD *) CreateExtIO(diskport,sizeof(struct IOExtTD));
OpenDevice("trackdisk.device", 0L, diskreq, 0L);
buf = (ULONG *) AllocMem(512L, MEMF_CHIP);
diskreq->iotd_Req.io_Length = 0L;
diskreq->iotd_Req.io_Command = TD_PROTSTATUS;
diskreq->iotd_Req.io_Offset = 0L;
DoIO(diskreq);
if(diskreq->iotd_Req.io_Actual) {
puts("noKLICKstart failed. Perhaps your disk is write protected?");
leave(10);
}
if ((GetBlock(512L, buf))) {
puts("\nnoKLICKstart failed. Couldn't read the disk.");
leave(10);
}
if(buf[122] != 0x15267db3) WrongVer(1);
buf[122] = 0x14a67db3;
PutBlock(512L, buf);
GetBlock(332L, buf);
if(buf[26] != 0x086b0001) { /* BCHG */
WrongVer(0);
GetBlock(512L, buf);
buf[122] = 0x15267db3; /* restore checksum */
PutBlock(512L, buf);
leave(10);
}
buf[26] = 0x08eb0001; /* BSET */
PutBlock(332L, buf);
diskreq->iotd_Req.io_Command = CMD_UPDATE;
DoIO(diskreq); /* flush the track buffer */
puts("\nnoKLICKstart installed. Please perform a cold boot now.\n");
leave(0);
}
GetBlock(num, diskbuf)
ULONG num;
ULONG *diskbuf;
{
diskreq->iotd_Req.io_Length = 512L;
diskreq->iotd_Req.io_Data = (APTR) diskbuf;
diskreq->iotd_Req.io_Command = CMD_READ;
diskreq->iotd_Req.io_Offset = num*512L;
return(DoIO(diskreq));
}
PutBlock(num, diskbuf)
ULONG num;
ULONG *diskbuf;
{
diskreq->iotd_Req.io_Length = 512L;
diskreq->iotd_Req.io_Data = (APTR) diskbuf;
diskreq->iotd_Req.io_Command = CMD_WRITE;
diskreq->iotd_Req.io_Offset = num*512L;
return(DoIO(diskreq));
}
leave(n)
int n;
{
diskreq->iotd_Req.io_Length = 0L;
diskreq->iotd_Req.io_Command = TD_MOTOR;
DoIO(diskreq);
FreeMem(buf, 512L);
CloseDevice(diskreq);
DeleteExtIO(diskreq, sizeof(struct IOExtTD));
DeletePort(diskport);
exit(n);
}
WrongVer(f)
int f;
{
puts("\nYou can't fool me! :-) That's not an unmodified V1.3 (34.5) Kickstart!!");
if (f) leave(10);
}
SHAR_EOF
# End of shell archive
exit 0
--
Bob Page, U of Lowell CS Dept. page@swan.ulowell.edu ulowell!page
Have five nice days.