{{htmlmetatags>metatag-robots=()
metatag-title=(OTHER CONTRIBUTIONS TIME CALIBRATION | ugBASIC User Manual)
metatag-keywords=(ugBASIC,Commodore 64,Commodore PLUS/4,ZX Spectrum)
metatag-description=(An isomorphic language for retrocomputers)
metatag-media-og:image=(:ugbasic:logo-ugbasic-fb.png)
metatag-og:title=(OTHER CONTRIBUTIONS TIME CALIBRATION | ugBASIC User Manual) 
metatag-og:description=(An isomorphic language for retrocomputers)
}}

====== ugBASIC User Manual ======

===== OTHER CONTRIBUTIONS TIME CALIBRATION =====

==== PURPOSE ====
 This source is intended to verify how the implementation of the TIMER variable (TI) accurately measures time. For this purpose, it can be used to calibrate the passage of exactly 10 seconds. As added value, this source code explain how to detect if the computer is running under PAL or NTSC frequecy.  

==== SOURCE CODE ====
   
   	CLS BLACK
   
   	INK WHITE
   
   	PRINT "*** TIMER CALIBRATION ***"
   
   	PRINT
   	PRINT "PAL    : "; PAL
   	PRINT "NTSC   : "; NTSC
   	PRINT "T.P.S. : "; TICKS PER SECOND
   	PRINT
   
   	PRINT "HARDWARE DETECTED: ";
   
   	IF PAL THEN
   		PRINT "PAL (50 Hz)"
   	ELSE IF NTSC THEN
   		PRINT "NTSC (60 Hz)"
   	ELSE
   		PRINT "unknown (not 50 Hz or 60 Hz)"
   	ENDIF
   
   	PRINT 
   
   	PRINT "10 SECS -> ";
   
   	DIM s AS BYTE = 0
   	DIM t AS INTEGER = 0
   	DIM dt AS INTEGER = 0
   
   	DO
   		t = TIMER
   
   		WHILE ( TIMER - t ) < TICKS PER SECOND
   
   			LOCATE 11 + s, 8
   
   			dt = TIMER - t
   			
   			IF dt = 0 THEN
   				PRINT ".";
   			ELSEIF dt = ( TICKS PER SECOND / 4 ) THEN
   				PRINT " ";
   			ELSEIF dt = ( 2 * ( TICKS PER SECOND / 4 ) ) THEN
   				PRINT ".";
   			ELSEIF dt = ( 3 * ( TICKS PER SECOND / 4 ) ) THEN
   				PRINT " ";
   			ENDIF
   
   		WEND
   		
   		LOCATE 11 + s, 8
   		PRINT "*";
   		
   		INC s
   		
   		EXIT IF s = 10
   		
   	LOOP
   
   	PRINT " (elapsed)"
   
   


==== SOURCE FILE ====
  * ''[[https://github.com/spotlessmind1975/ugbasic/tree/main/examples/contrib_calibration.bas|contrib_calibration.bas]]''
==== HOW TO COMPILE AND RUN ====
The instructions here refer to compiling the example from the command line. For Microsoft Windows users we suggest using **[[https://spotlessmind1975.itch.io/ugbasic-ide|UGBASIC-IDE]]**, which allows you to compile the example with just one click.=== ATARI 400/800 family ===
In order to compile and run the example, you need to have the Altirra emulator, and in particular that the ''altirra'' executable is accessible.

Then, type this command on the command line:

   # Linux 
   ugbc.atari contrib_calibration.bas -o example.xex
   altirra example.xex
   
   # Windows 
   ugbc.atari.exe contrib_calibration.bas -o example.xex
   altirra example.xex
=== ATARI 600XL/800XL/1200XL/XG(SE) family ===
In order to compile and run the example, you need to have the Altirra emulator, and in particular that the ''altirra'' executable is accessible.

Then, type this command on the command line:

   # Linux 
   ugbc.atarixl contrib_calibration.bas -o example.xex
   altirra example.xex
   
   # Windows 
   ugbc.atarixl.exe contrib_calibration.bas -o example.xex
   altirra example.xex
=== Commodore 64 ===
In order to compile and run the example, you need to have the VICE emulator, and in particular that the ''x64sc'' executable is accessible.

Then, type this command on the command line:

   # Linux 
   ugbc.c64 contrib_calibration.bas -o example.prg
   x64sc example.prg
   
   # Windows 
   ugbc.c64.exe contrib_calibration.bas -o example.prg
   x64sc example.prg
=== Commodore 64+REU ===
In order to compile and run the example, you need to have the VICE emulator, and in particular that the ''x64sc'' executable is accessible.

Then, type this command on the command line:

   # Linux 
   ugbc.c64reu contrib_calibration.bas -o example.prg
   x64sc -reu example.prg
   
   # Windows 
   ugbc.c64reu.exe contrib_calibration.bas -o example.prg
   x64sc -reu example.prg
=== Commodore PLUS/4 ===
== Using YAPE ==
In order to run the example, you need to have the YAPE emulator. In particular that the ''yape'' executable is accessible.

Then, type this command on the command line:

   # Linux 
   ugbc.plus4 contrib_calibration.bas -o example.prg
   yape example.prg
   
   # Windows 
   ugbc.plus4.exe contrib_calibration.bas -o example.prg
   yape example.prg
== Using VICE ==
In order to run the example, you need to have the VICE emulator. In particular that the ''xplus4'' executable is accessible.

Then, type this command on the command line:

   # Linux 
   ugbc.plus4 contrib_calibration.bas -o example.prg
   xplus4 example.prg
   
   # Windows 
   ugbc.plus4.exe contrib_calibration.bas -o example.prg
   xplus4 example.prg
=== Dragon 32 ===
In order to compile and run the example, you need to have the XROAR emulator, and in particular that the ''xroar'' executable is accessible.

Then, type this command on the command line:

   # Linux 
   ugbc.d32 contrib_calibration.bas -o example.bin
   xroar -rompath (your rom path) example.bin
   
   # Windows 
   ugbc.d32.exe contrib_calibration.bas -o example.bin
   xroar.exe -rompath (your rom path) example.bin
=== Dragon 64 ===
In order to compile and run the example, you need to have the XROAR emulator, and in particular that the ''xroar'' executable is accessible.

Then, type this command on the command line:

   # Linux 
   ugbc.d64 contrib_calibration.bas -o example.bin
   xroar -rompath (your rom path) example.bin
   
   # Windows 
   ugbc.d64.exe contrib_calibration.bas -o example.bin
   xroar.exe -rompath (your rom path) example.bin
=== PC128 Olivetti Prodest ===
In order to compile and run the example, you need to have the DCMOTO emulator, and in particular that the ''dcmoto'' executable is accessible.

Then, type this command on the command line and on the emulator:

   # Linux 
   ugbc.pc128op contrib_calibration.bas -o example.k7
   dcmoto
   (choose BASIC 128)
   CLEAR,&H2FFF: LOADM"CASS:",R: EXEC
   
   # Windows 
   ugbc.pc128op.exe contrib_calibration.bas -o example.k7
   dcmoto
   (choose example.k7)
   (choose BASIC 128)
   CLEAR,&H2FFF: LOADM"CASS:",R: EXEC
=== Thomson MO5 ===
In order to compile and run the example, you need to have the DCMOTO emulator, and in particular that the ''dcmoto'' executable is accessible.

Then, type this command on the command line and on the emulator:

   # Linux 
   ugbc.pc128op contrib_calibration.bas -o example.k7
   dcmoto
   (choose BASIC 128)
   CLEAR,&H2FFF: LOADM"CASS:",R: EXEC
   
   # Windows 
   ugbc.pc128op.exe contrib_calibration.bas -o example.k7
   dcmoto
   (choose example.k7)
   (choose BASIC 128)
   CLEAR,&H2FFF: LOADM"CASS:",R: EXEC
=== Commodore VIC-20 ===
In order to compile and run the example, you need to have the VICE emulator, and in particular that the ''xvic'' executable is accessible.

Then, type this command on the command line:

   # Linux 
   ugbc.vic20 contrib_calibration.bas -o example.prg
   xvic --memory 24k example.prg
   
   # Windows 
   ugbc.vic20.exe contrib_calibration.bas -o example.prg
   xvic --memory 24k example.prg
=== ZX Spectrum ===
In order to compile and run the example, you need to have the Speccy emulator, and in particular that the ''speccy'' executable is accessible.

Then, type this command on the command line:

   # Linux 
   ugbc.zx contrib_calibration.bas -o example.tap
   Speccy example.tap
   
   # Windows 
   ugbc.zx.exe contrib_calibration.bas -o example.tap
   Speccy example.tap
=== MSX ===
In order to compile and run the example, you need to have the openMsx or the BlueMSX emulator, and in particular that its executable is accessible.

Then, type this command on the command line:

== openMSX ==
   # Linux 
   ugbc.msx1 contrib_calibration.bas -o example.rom
   openmsx -cart example.rom
   
   # Windows 
   ugbc.msx1.exe contrib_calibration.bas -o example.rom
   openmsx -cart example.rom
== blueMSX ==
   # Linux 
   ugbc.msx1 contrib_calibration.bas -o example.rom
   bluemsx example.rom
   
   # Windows 
   ugbc.msx1.exe contrib_calibration.bas -o example.rom
   bluemsx example.rom
=== ColecoVision ===
In order to compile and run the example, you need to have the openMsx or the BlueMSX emulator, and in particular that its executable is accessible.

Then, type this command on the command line:

== openMSX ==
   # Linux 
   ugbc.coleco contrib_calibration.bas -o example.rom
   openmsx -machine \"COL - ColecoVision\" -cart example.rom
   
   # Windows 
   ugbc.coleco.exe contrib_calibration.bas -o example.rom
   bluemsx -machine \"COL - ColecoVision\" example.rom
== blueMSX ==
   # Linux 
   ugbc.coleco contrib_calibration.bas -o example.rom
   bluemsx /machine \"COL - ColecoVision\" /rom1 example.rom
   
   # Windows 
   ugbc.coleco.exe contrib_calibration.bas -o example.rom
   bluemsx  /machine \"COL - ColecoVision\" /rom1 example.rom
=== SEGA SC-3000 ===
In order to compile and run the example, you need to have the BlueMSX emulator, and in particular that its executable is accessible.

Then, type this command on the command line:

   # Linux 
   ugbc.sc3000 contrib_calibration.bas -o example.rom
   bluemsx /machine \"SEGA - SC-3000\" /rom1 example.rom
   
   # Windows 
   ugbc.sc3000.exe contrib_calibration.bas -o example.rom
   bluemsx  /machine \"SEGA - SC-3000\" /rom1 example.rom
=== SEGA SG-1000 ===
In order to compile and run the example, you need to have the BlueMSX emulator, and in particular that its executable is accessible.

Then, type this command on the command line:

   # Linux 
   ugbc.sg1000 contrib_calibration.bas -o example.rom
   bluemsx /machine \"SEGA - SG-1000\" /rom1 example.rom
   
   # Windows 
   ugbc.sg1000.exe contrib_calibration.bas -o example.rom
   bluemsx  /machine \"SEGA - SG-1000\" /rom1 example.rom
==== ANY PROBLEM? ====
If you have found a problem trying to run this example, if you think there is a bug or, more simply, you would like it to be improved, [[https://github.com/spotlessmind1975/ugbasic/issues/new?title=IMPROVE OTHER CONTRIBUTIONS TIME CALIBRATION|open an issue]] for this example on GitHub. Thank you!===== POWERED BY =====

[[:ugbasic:user:examples|{{ :ugbasic:user:logo-ugbasic.png?nolink&600 |}}]]