Table of Contents

ugBASIC User Manual

BASIC COMMANDS SWAP NUMBERS

PURPOSE

This example shows how to exchange two variables of the same type.

SOURCE CODE

 
     CLS
 
     DIM firstbs AS SIGNED BYTE, secondbs AS SIGNED BYTE
     DIM firstbu AS BYTE, secondbu AS BYTE
 
 	DIM firstws AS SIGNED WORD, secondws AS SIGNED WORD
     DIM firstwu AS WORD, secondwu AS WORD
 
 	DIM firstds AS SIGNED DWORD, secondds AS SIGNED DWORD
     DIM firstdu AS DWORD, seconddu AS DWORD
 
     firstbs = -42: secondbs = 24
     firstbu = 42: secondbu = 24
 
 	firstws = -4200: secondws = 2400
  	firstwu = 4200: secondwu = 2400
 
 	firstds = -1024000: secondds = 204800
     firstdu = 1024000: seconddu = 204800
     
     SWAP firstbs, secondbs
     SWAP firstbu, secondbu
 
 	SWAP firstws, secondws
  	SWAP firstwu, secondwu
 
 	SWAP firstds, secondds
     SWAP firstdu, seconddu
 
 	PRINT "BYTE SIGNED:";    
 	IF firstbs = 24 THEN
 		PRINT "OK (1) ";
 	ELSE
 		PRINT "FAIL (1) = ";firstbs
     ENDIF    
     IF secondbs = -42 THEN
 		PRINT "OK (2) ";    
 	ELSE
 		PRINT "FAIL (2) = ";secondbs
     ENDIF
 
     PRINT
     
 	PRINT "BYTE UNSIGNED:";    
     IF firstbu = 24 THEN
 		PRINT "OK (1) ";
 	ELSE
 		PRINT "FAIL (2) = ";firstbu
     ENDIF
     IF secondbu = 42 THEN
 		PRINT "OK (2) ";    
     ENDIF
 
     PRINT
 
 	PRINT "WORD SIGNED:";    
 	IF firstws = 2400 THEN
 		PRINT "OK (1) ";
 	ENDIF
 	IF secondws = -4200 THEN
 		PRINT "OK (2) ";	
 	ENDIF
 	
     PRINT
     
 	PRINT "WORD UNSIGNED:";    
  	IF firstwu = 2400 THEN
 		PRINT "OK (1) ";
  	ENDIF 	
  	IF secondwu = 4200 THEN
 		PRINT "OK (2) ";
  	ENDIF
 
 	PRINT
 
 	PRINT "DWORD SIGNED:";    	
 	IF firstds = 204800 THEN
 		PRINT "OK (1) ";
 	ENDIF
 	IF secondds = -1024000 THEN
 		PRINT "OK (2) ";
 	ENDIF
 	
 	PRINT
 	
 	PRINT "DWORD UNSIGNED:";    	
     IF firstdu = 204800 THEN
 		PRINT "OK (1) ";
     ENDIF
     IF seconddu = 1024000 THEN
 		PRINT "OK (2) ";
     ENDIF

SOURCE FILE

HOW TO COMPILE AND RUN

The instructions here refer to compiling the example from the command line. For Microsoft Windows users we suggest using 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 basic_swap.bas -o example.xex
 altirra example.xex
 
 # Windows 
 ugbc.atari.exe basic_swap.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 basic_swap.bas -o example.xex
 altirra example.xex
 
 # Windows 
 ugbc.atarixl.exe basic_swap.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 basic_swap.bas -o example.prg
 x64sc example.prg
 
 # Windows 
 ugbc.c64.exe basic_swap.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 basic_swap.bas -o example.prg
 x64sc -reu example.prg
 
 # Windows 
 ugbc.c64reu.exe basic_swap.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 basic_swap.bas -o example.prg
 yape example.prg
 
 # Windows 
 ugbc.plus4.exe basic_swap.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 basic_swap.bas -o example.prg
 xplus4 example.prg
 
 # Windows 
 ugbc.plus4.exe basic_swap.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 basic_swap.bas -o example.bin
 xroar -rompath (your rom path) example.bin
 
 # Windows 
 ugbc.d32.exe basic_swap.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 basic_swap.bas -o example.bin
 xroar -rompath (your rom path) example.bin
 
 # Windows 
 ugbc.d64.exe basic_swap.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 basic_swap.bas -o example.k7
 dcmoto
 (choose BASIC 128)
 CLEAR,&H2FFF: LOADM"CASS:",R: EXEC
 
 # Windows 
 ugbc.pc128op.exe basic_swap.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 basic_swap.bas -o example.k7
 dcmoto
 (choose BASIC 128)
 CLEAR,&H2FFF: LOADM"CASS:",R: EXEC
 
 # Windows 
 ugbc.pc128op.exe basic_swap.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 basic_swap.bas -o example.prg
 xvic --memory 24k example.prg
 
 # Windows 
 ugbc.vic20.exe basic_swap.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 basic_swap.bas -o example.tap
 Speccy example.tap
 
 # Windows 
 ugbc.zx.exe basic_swap.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 basic_swap.bas -o example.rom
 openmsx -cart example.rom
 
 # Windows 
 ugbc.msx1.exe basic_swap.bas -o example.rom
 openmsx -cart example.rom
blueMSX
 # Linux 
 ugbc.msx1 basic_swap.bas -o example.rom
 bluemsx example.rom
 
 # Windows 
 ugbc.msx1.exe basic_swap.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 basic_swap.bas -o example.rom
 openmsx -machine \"COL - ColecoVision\" -cart example.rom
 
 # Windows 
 ugbc.coleco.exe basic_swap.bas -o example.rom
 bluemsx -machine \"COL - ColecoVision\" example.rom
blueMSX
 # Linux 
 ugbc.coleco basic_swap.bas -o example.rom
 bluemsx /machine \"COL - ColecoVision\" /rom1 example.rom
 
 # Windows 
 ugbc.coleco.exe basic_swap.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 basic_swap.bas -o example.rom
 bluemsx /machine \"SEGA - SC-3000\" /rom1 example.rom
 
 # Windows 
 ugbc.sc3000.exe basic_swap.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 basic_swap.bas -o example.rom
 bluemsx /machine \"SEGA - SG-1000\" /rom1 example.rom
 
 # Windows 
 ugbc.sg1000.exe basic_swap.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, open an issue for this example on GitHub. Thank you!

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