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- ;/* vertb.c - Execute me to compile me with SAS C 5.10
- LC -d0 -b1 -cfistq -v -y -j73 vertb.c
- Blink FROM LIB:c.o,vertb.o,vertbserver.o TO vertb LIBRARY LIB:LC.lib,LIB:Amiga.lib
- quit ;
-
- vertb.c - Vertical blank interrupt server example. Must be linked with vertbserver.o.
-
- Copyright (c) 1992 Commodore-Amiga, Inc.
-
- This example is provided in electronic form by Commodore-Amiga, Inc. for
- use with the "Amiga ROM Kernel Reference Manual: Libraries", 3rd Edition,
- published by Addison-Wesley (ISBN 0-201-56774-1).
-
- The "Amiga ROM Kernel Reference Manual: Libraries" contains additional
- information on the correct usage of the techniques and operating system
- functions presented in these examples. The source and executable code
- of these examples may only be distributed in free electronic form, via
- bulletin board or as part of a fully non-commercial and freely
- redistributable diskette. Both the source and executable code (including
- comments) must be included, without modification, in any copy. This
- example may not be published in printed form or distributed with any
- commercial product. However, the programming techniques and support
- routines set forth in these examples may be used in the development
- of original executable software products for Commodore Amiga computers.
-
- All other rights reserved.
-
- This example is provided "as-is" and is subject to change; no
- warranties are made. All use is at your own risk. No liability or
- responsibility is assumed.
- */
-
-
- #include <exec/memory.h>
- #include <exec/interrupts.h>
- #include <dos/dos.h>
- #include <hardware/custom.h>
- #include <hardware/intbits.h>
- #include <clib/exec_protos.h>
- #include <stdio.h>
-
- #ifdef LATTICE
- int CXBRK(void) { return(0); } /* Disable Lattice CTRL/C handling */
- void chkabort(void) { return; } /* really */
- #endif
-
- extern void VertBServer(); /* proto for asm interrupt server */
-
- void main(void)
- {
- struct Interrupt *vbint;
- ULONG counter = 0;
- ULONG endcount;
- /* Allocate memory for */
- if (vbint = AllocMem(sizeof(struct Interrupt), MEMF_PUBLIC|MEMF_CLEAR)) /* interrupt node. */
- {
- vbint->is_Node.ln_Type = NT_INTERRUPT; /* Initialize the node. */
- vbint->is_Node.ln_Pri = -60;
- vbint->is_Node.ln_Name = "VertB-Example";
- vbint->is_Data = (APTR)&counter;
- vbint->is_Code = VertBServer;
-
-
- AddIntServer(INTB_VERTB, vbint); /* Kick this interrupt server to life. */
-
- printf("VBlank server will increment a counter every frame.\n");
- printf("counter started at zero, CTRL-C to remove server\n");
-
- Wait(SIGBREAKF_CTRL_C);
- endcount = counter;
- printf("%ld vertical blanks occurred\nRemoving server\n", endcount);
-
- RemIntServer(INTB_VERTB, vbint);
- FreeMem(vbint, sizeof(struct Interrupt));
- }
- else printf("Can't allocate memory for interrupt node\n");
- }