Home » Archimedes archive » Archimedes World » AW-1992-09.adf » AWSept92 » !AWSept92/Goodies/Work/c/wimp
!AWSept92/Goodies/Work/c/wimp
This website contains an archive of files for the Acorn Electron, BBC Micro, Acorn Archimedes, Commodore 16 and Commodore 64 computers, which Dominic Ford has rescued from his private collection of floppy disks and cassettes.
Some of these files were originally commercial releases in the 1980s and 1990s, but they are now widely available online. I assume that copyright over them is no longer being asserted. If you own the copyright and would like files to be removed, please contact me.
| Tape/disk: | Home » Archimedes archive » Archimedes World » AW-1992-09.adf » AWSept92 |
| Filename: | !AWSept92/Goodies/Work/c/wimp |
| Read OK: | ✔ |
| File size: | 0990 bytes |
| Load address: | 0000 |
| Exec address: | 0000 |
File contents
/*********************************************************************/
/* */
/* Wimp Routine Library. Access to Wimp SWI calls */
/* */
/* Archimedes World 1992 */
/* */
/* Written By John Skingley. */
/* */
/*********************************************************************/
#include "h.global"
#include "h.swi"
#include "h.swiwimp"
#include "h.wimp"
static swi_error *Error = NULL;
static int Event[64] = { 0 };
static int Reason = 0;
static int Mask = 1; /* Mask null events by default */
static int Task = 0; /* This task's handle. */
int WimpTask( void )
{
return Task;
}
void WimpSetMask( int reason, int state )
{
/* Sets or unsets mask bit for given reason code. */
int newmask = 1 << reason;
if ( state )
Mask |= newmask;
else
Mask &= ~newmask;
}
int WimpGetMask( void )
{
return Mask;
}
int WimpErrorNumber( void )
{
/* Returns last error number, or zero. */
if ( Error )
return Error->number;
else
return 0;
}
char *WimpErrorMessage( void )
{
/* Returns last error message string, or NULL. */
if ( Error )
return Error->message;
else
return NULL;
}
int WimpReasonCode( void )
{
/* Returns the reason code for the latest event. */
return Reason;
}
int *WimpEvent( void )
{
/* Returns a pointer to the latest event data. */
return Event;
}
int WimpPoll( void )
{
/* Calls wimp polling routine, fills in event data. */
int regs[10];
regs[0] = 0;
regs[1] = (int) Event;
Error = Swi( Wimp_Poll, regs );
Reason = regs[0];
return Reason;
}
void WimpInitialise( char *name )
{
/* Register task with the WIMP. */
int regs[10];
regs[0] = 200;
regs[1] = 0x4B534154; /* Magic number = 'TASK' */
regs[2] = (int) name;
Error = Swi( Wimp_Initialise, regs );
Task = regs[1];
}
void WimpCloseDown( void )
{
int regs[10];
regs[0] = Task;
regs[1] = 0x4B534154;
Error = Swi( Wimp_CloseDown, regs );
}
00000000 2f 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a |/***************|
00000010 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a |****************|
*
00000040 2a 2a 2a 2a 2a 2a 2f 0a 2f 2a 20 20 20 20 20 20 |******/./* |
00000050 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 | |
*
00000080 20 20 20 20 20 20 20 20 20 20 20 20 20 2a 2f 0a | */.|
00000090 2f 2a 20 20 57 69 6d 70 20 52 6f 75 74 69 6e 65 |/* Wimp Routine|
000000a0 20 4c 69 62 72 61 72 79 2e 20 20 20 20 20 20 20 | Library. |
000000b0 20 20 20 41 63 63 65 73 73 20 74 6f 20 57 69 6d | Access to Wim|
000000c0 70 20 53 57 49 20 63 61 6c 6c 73 20 20 20 20 20 |p SWI calls |
000000d0 20 20 20 20 20 2a 2f 0a 2f 2a 20 20 20 20 20 20 | */./* |
000000e0 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 | |
*
00000110 20 20 20 20 20 20 20 20 20 20 20 20 20 2a 2f 0a | */.|
00000120 2f 2a 20 20 41 72 63 68 69 6d 65 64 65 73 20 57 |/* Archimedes W|
00000130 6f 72 6c 64 20 31 39 39 32 20 20 20 20 20 20 20 |orld 1992 |
00000140 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 | |
*
00000160 20 20 20 20 20 2a 2f 0a 2f 2a 20 20 20 20 20 20 | */./* |
00000170 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 | |
*
000001a0 20 20 20 20 20 20 20 20 20 20 20 20 20 2a 2f 0a | */.|
000001b0 2f 2a 20 20 57 72 69 74 74 65 6e 20 42 79 20 4a |/* Written By J|
000001c0 6f 68 6e 20 53 6b 69 6e 67 6c 65 79 2e 20 20 20 |ohn Skingley. |
000001d0 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 | |
*
000001f0 20 20 20 20 20 2a 2f 0a 2f 2a 20 20 20 20 20 20 | */./* |
00000200 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 | |
*
00000230 20 20 20 20 20 20 20 20 20 20 20 20 20 2a 2f 0a | */.|
00000240 2f 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a |/***************|
00000250 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a |****************|
*
00000280 2a 2a 2a 2a 2a 2a 2f 0a 0a 0a 23 69 6e 63 6c 75 |******/...#inclu|
00000290 64 65 20 22 68 2e 67 6c 6f 62 61 6c 22 0a 23 69 |de "h.global".#i|
000002a0 6e 63 6c 75 64 65 20 22 68 2e 73 77 69 22 0a 23 |nclude "h.swi".#|
000002b0 69 6e 63 6c 75 64 65 20 22 68 2e 73 77 69 77 69 |include "h.swiwi|
000002c0 6d 70 22 0a 23 69 6e 63 6c 75 64 65 20 22 68 2e |mp".#include "h.|
000002d0 77 69 6d 70 22 0a 0a 73 74 61 74 69 63 20 73 77 |wimp"..static sw|
000002e0 69 5f 65 72 72 6f 72 20 2a 45 72 72 6f 72 20 20 |i_error *Error |
000002f0 20 20 20 20 20 20 3d 20 4e 55 4c 4c 3b 0a 73 74 | = NULL;.st|
00000300 61 74 69 63 20 69 6e 74 20 20 20 20 20 20 20 20 |atic int |
00000310 45 76 65 6e 74 5b 36 34 5d 20 20 20 20 3d 20 7b |Event[64] = {|
00000320 20 30 20 7d 3b 0a 73 74 61 74 69 63 20 69 6e 74 | 0 };.static int|
00000330 20 20 20 20 20 20 20 20 52 65 61 73 6f 6e 20 20 | Reason |
00000340 20 20 20 20 20 3d 20 30 3b 0a 73 74 61 74 69 63 | = 0;.static|
00000350 20 69 6e 74 20 20 20 20 20 20 20 20 4d 61 73 6b | int Mask|
00000360 20 20 20 20 20 20 20 20 20 3d 20 31 3b 20 20 20 | = 1; |
00000370 20 2f 2a 20 4d 61 73 6b 20 6e 75 6c 6c 20 65 76 | /* Mask null ev|
00000380 65 6e 74 73 20 62 79 20 64 65 66 61 75 6c 74 20 |ents by default |
00000390 2a 2f 0a 73 74 61 74 69 63 20 69 6e 74 20 20 20 |*/.static int |
000003a0 20 20 20 20 20 54 61 73 6b 20 20 20 20 20 20 20 | Task |
000003b0 20 20 3d 20 30 3b 20 20 20 20 2f 2a 20 54 68 69 | = 0; /* Thi|
000003c0 73 20 74 61 73 6b 27 73 20 68 61 6e 64 6c 65 2e |s task's handle.|
000003d0 20 20 20 20 20 20 20 20 20 2a 2f 0a 0a 0a 69 6e | */...in|
000003e0 74 20 57 69 6d 70 54 61 73 6b 28 20 76 6f 69 64 |t WimpTask( void|
000003f0 20 29 0a 7b 0a 20 20 20 20 72 65 74 75 72 6e 20 | ).{. return |
00000400 54 61 73 6b 3b 0a 7d 0a 0a 0a 76 6f 69 64 20 57 |Task;.}...void W|
00000410 69 6d 70 53 65 74 4d 61 73 6b 28 20 69 6e 74 20 |impSetMask( int |
00000420 72 65 61 73 6f 6e 2c 20 69 6e 74 20 73 74 61 74 |reason, int stat|
00000430 65 20 29 0a 7b 0a 2f 2a 20 20 53 65 74 73 20 6f |e ).{./* Sets o|
00000440 72 20 75 6e 73 65 74 73 20 6d 61 73 6b 20 62 69 |r unsets mask bi|
00000450 74 20 66 6f 72 20 67 69 76 65 6e 20 72 65 61 73 |t for given reas|
00000460 6f 6e 20 63 6f 64 65 2e 20 2a 2f 0a 0a 20 20 20 |on code. */.. |
00000470 20 69 6e 74 20 6e 65 77 6d 61 73 6b 20 3d 20 31 | int newmask = 1|
00000480 20 3c 3c 20 72 65 61 73 6f 6e 3b 0a 0a 20 20 20 | << reason;.. |
00000490 20 69 66 20 28 20 73 74 61 74 65 20 29 0a 20 20 | if ( state ). |
000004a0 20 20 20 20 20 20 4d 61 73 6b 20 7c 3d 20 20 6e | Mask |= n|
000004b0 65 77 6d 61 73 6b 3b 0a 20 20 20 20 65 6c 73 65 |ewmask;. else|
000004c0 0a 20 20 20 20 20 20 20 20 4d 61 73 6b 20 26 3d |. Mask &=|
000004d0 20 7e 6e 65 77 6d 61 73 6b 3b 0a 7d 0a 0a 0a 69 | ~newmask;.}...i|
000004e0 6e 74 20 57 69 6d 70 47 65 74 4d 61 73 6b 28 20 |nt WimpGetMask( |
000004f0 76 6f 69 64 20 29 0a 7b 0a 20 20 20 20 72 65 74 |void ).{. ret|
00000500 75 72 6e 20 4d 61 73 6b 3b 0a 7d 0a 0a 0a 69 6e |urn Mask;.}...in|
00000510 74 20 57 69 6d 70 45 72 72 6f 72 4e 75 6d 62 65 |t WimpErrorNumbe|
00000520 72 28 20 76 6f 69 64 20 29 0a 7b 0a 2f 2a 20 20 |r( void ).{./* |
00000530 52 65 74 75 72 6e 73 20 6c 61 73 74 20 65 72 72 |Returns last err|
00000540 6f 72 20 6e 75 6d 62 65 72 2c 20 6f 72 20 7a 65 |or number, or ze|
00000550 72 6f 2e 20 20 2a 2f 0a 0a 20 20 20 20 69 66 20 |ro. */.. if |
00000560 28 20 45 72 72 6f 72 20 29 0a 20 20 20 20 20 20 |( Error ). |
00000570 20 20 72 65 74 75 72 6e 20 45 72 72 6f 72 2d 3e | return Error->|
00000580 6e 75 6d 62 65 72 3b 0a 20 20 20 20 65 6c 73 65 |number;. else|
00000590 0a 20 20 20 20 20 20 20 20 72 65 74 75 72 6e 20 |. return |
000005a0 30 3b 0a 7d 0a 0a 0a 63 68 61 72 20 2a 57 69 6d |0;.}...char *Wim|
000005b0 70 45 72 72 6f 72 4d 65 73 73 61 67 65 28 20 76 |pErrorMessage( v|
000005c0 6f 69 64 20 29 0a 7b 0a 2f 2a 20 20 52 65 74 75 |oid ).{./* Retu|
000005d0 72 6e 73 20 6c 61 73 74 20 65 72 72 6f 72 20 6d |rns last error m|
000005e0 65 73 73 61 67 65 20 73 74 72 69 6e 67 2c 20 6f |essage string, o|
000005f0 72 20 4e 55 4c 4c 2e 20 20 2a 2f 0a 0a 20 20 20 |r NULL. */.. |
00000600 20 69 66 20 28 20 45 72 72 6f 72 20 29 0a 20 20 | if ( Error ). |
00000610 20 20 20 20 20 20 72 65 74 75 72 6e 20 45 72 72 | return Err|
00000620 6f 72 2d 3e 6d 65 73 73 61 67 65 3b 0a 20 20 20 |or->message;. |
00000630 20 65 6c 73 65 0a 20 20 20 20 20 20 20 20 72 65 | else. re|
00000640 74 75 72 6e 20 4e 55 4c 4c 3b 0a 7d 0a 0a 0a 69 |turn NULL;.}...i|
00000650 6e 74 20 57 69 6d 70 52 65 61 73 6f 6e 43 6f 64 |nt WimpReasonCod|
00000660 65 28 20 76 6f 69 64 20 29 0a 7b 0a 2f 2a 20 20 |e( void ).{./* |
00000670 52 65 74 75 72 6e 73 20 74 68 65 20 72 65 61 73 |Returns the reas|
00000680 6f 6e 20 63 6f 64 65 20 66 6f 72 20 74 68 65 20 |on code for the |
00000690 6c 61 74 65 73 74 20 65 76 65 6e 74 2e 20 2a 2f |latest event. */|
000006a0 0a 0a 20 20 20 20 72 65 74 75 72 6e 20 52 65 61 |.. return Rea|
000006b0 73 6f 6e 3b 0a 7d 0a 0a 0a 69 6e 74 20 2a 57 69 |son;.}...int *Wi|
000006c0 6d 70 45 76 65 6e 74 28 20 76 6f 69 64 20 29 0a |mpEvent( void ).|
000006d0 7b 0a 2f 2a 20 20 52 65 74 75 72 6e 73 20 61 20 |{./* Returns a |
000006e0 70 6f 69 6e 74 65 72 20 74 6f 20 74 68 65 20 6c |pointer to the l|
000006f0 61 74 65 73 74 20 65 76 65 6e 74 20 64 61 74 61 |atest event data|
00000700 2e 20 2a 2f 0a 0a 20 20 20 20 72 65 74 75 72 6e |. */.. return|
00000710 20 45 76 65 6e 74 3b 0a 7d 0a 0a 0a 69 6e 74 20 | Event;.}...int |
00000720 57 69 6d 70 50 6f 6c 6c 28 20 76 6f 69 64 20 29 |WimpPoll( void )|
00000730 0a 7b 0a 2f 2a 20 20 43 61 6c 6c 73 20 77 69 6d |.{./* Calls wim|
00000740 70 20 70 6f 6c 6c 69 6e 67 20 72 6f 75 74 69 6e |p polling routin|
00000750 65 2c 20 66 69 6c 6c 73 20 69 6e 20 65 76 65 6e |e, fills in even|
00000760 74 20 64 61 74 61 2e 20 2a 2f 0a 0a 20 20 20 20 |t data. */.. |
00000770 69 6e 74 20 20 72 65 67 73 5b 31 30 5d 3b 0a 0a |int regs[10];..|
00000780 20 20 20 20 72 65 67 73 5b 30 5d 20 3d 20 30 3b | regs[0] = 0;|
00000790 0a 20 20 20 20 72 65 67 73 5b 31 5d 20 3d 20 28 |. regs[1] = (|
000007a0 69 6e 74 29 20 45 76 65 6e 74 3b 0a 0a 20 20 20 |int) Event;.. |
000007b0 20 45 72 72 6f 72 20 20 3d 20 53 77 69 28 20 57 | Error = Swi( W|
000007c0 69 6d 70 5f 50 6f 6c 6c 2c 20 72 65 67 73 20 29 |imp_Poll, regs )|
000007d0 3b 0a 20 20 20 20 52 65 61 73 6f 6e 20 3d 20 72 |;. Reason = r|
000007e0 65 67 73 5b 30 5d 3b 0a 0a 20 20 20 20 72 65 74 |egs[0];.. ret|
000007f0 75 72 6e 20 52 65 61 73 6f 6e 3b 0a 7d 0a 0a 0a |urn Reason;.}...|
00000800 76 6f 69 64 20 57 69 6d 70 49 6e 69 74 69 61 6c |void WimpInitial|
00000810 69 73 65 28 20 63 68 61 72 20 2a 6e 61 6d 65 20 |ise( char *name |
00000820 29 0a 7b 0a 2f 2a 20 20 52 65 67 69 73 74 65 72 |).{./* Register|
00000830 20 74 61 73 6b 20 77 69 74 68 20 74 68 65 20 57 | task with the W|
00000840 49 4d 50 2e 20 2a 2f 0a 0a 20 20 20 20 69 6e 74 |IMP. */.. int|
00000850 20 72 65 67 73 5b 31 30 5d 3b 0a 0a 20 20 20 20 | regs[10];.. |
00000860 72 65 67 73 5b 30 5d 20 3d 20 32 30 30 3b 0a 20 |regs[0] = 200;. |
00000870 20 20 20 72 65 67 73 5b 31 5d 20 3d 20 30 78 34 | regs[1] = 0x4|
00000880 42 35 33 34 31 35 34 3b 20 20 2f 2a 20 4d 61 67 |B534154; /* Mag|
00000890 69 63 20 6e 75 6d 62 65 72 20 3d 20 27 54 41 53 |ic number = 'TAS|
000008a0 4b 27 20 2a 2f 0a 20 20 20 20 72 65 67 73 5b 32 |K' */. regs[2|
000008b0 5d 20 3d 20 28 69 6e 74 29 20 6e 61 6d 65 3b 0a |] = (int) name;.|
000008c0 0a 20 20 20 20 45 72 72 6f 72 20 3d 20 53 77 69 |. Error = Swi|
000008d0 28 20 57 69 6d 70 5f 49 6e 69 74 69 61 6c 69 73 |( Wimp_Initialis|
000008e0 65 2c 20 72 65 67 73 20 29 3b 0a 0a 20 20 20 20 |e, regs );.. |
000008f0 54 61 73 6b 20 3d 20 72 65 67 73 5b 31 5d 3b 0a |Task = regs[1];.|
00000900 7d 0a 0a 0a 76 6f 69 64 20 57 69 6d 70 43 6c 6f |}...void WimpClo|
00000910 73 65 44 6f 77 6e 28 20 76 6f 69 64 20 29 0a 7b |seDown( void ).{|
00000920 0a 20 20 20 20 69 6e 74 20 72 65 67 73 5b 31 30 |. int regs[10|
00000930 5d 3b 0a 0a 20 20 20 20 72 65 67 73 5b 30 5d 20 |];.. regs[0] |
00000940 3d 20 54 61 73 6b 3b 0a 20 20 20 20 72 65 67 73 |= Task;. regs|
00000950 5b 31 5d 20 3d 20 30 78 34 42 35 33 34 31 35 34 |[1] = 0x4B534154|
00000960 3b 0a 0a 20 20 20 20 45 72 72 6f 72 20 3d 20 53 |;.. Error = S|
00000970 77 69 28 20 57 69 6d 70 5f 43 6c 6f 73 65 44 6f |wi( Wimp_CloseDo|
00000980 77 6e 2c 20 72 65 67 73 20 29 3b 0a 7d 0a 0a 0a |wn, regs );.}...|
00000990 
.