Hello, 8-bit world
Your first two lines of NES BASIC. Print a message and make the machine yours.
HELLO.BAS
10 PRINT "HELLO FROM NES BASIC"
20 END01 THE EXAMPLE LIBRARY
Steal a little
inspiration.
Eight complete programs from the free guide. Read the code, try it in the actual ROM, then make it your own.
Meet your program
Ask for a name, store a string, and build a personal greeting.
NAME.BAS
10 INPUT "YOUR NAME";N$
20 A$="HELLO, "+N$
30 PRINT A$
40 IF N$="" THEN PRINT "EMPTY NAME"
50 ENDThere and back again
Call a subroutine and return to the next instruction.
SUBROUTINE.BAS
10 GOSUB 100
20 PRINT "BACK"
30 END
100 PRINT "IN SUBROUTINE"
110 RETURNA little number magic
Add the numbers from 1 to 5 with a FOR / NEXT loop.
SUM.BAS
10 A=0
20 FOR I=1 TO 5
30 A=A+I
40 NEXT I
50 PRINT "TOTAL=";A
60 ENDDraw outside the lines
Create a frame, a diagonal, and a pixel on the real graphics canvas.
DRAWING.BAS
10 SCREEN 1
20 COLOR 42,15
30 RECT 8,8,119,55
40 LINE 0,0,127,63
50 PSET 64,32
60 ENDThree notes, one idea
Make a short melody with the NES pulse channel.
MELODY.BAS
10 SOUND 1,60,20
20 WAIT 20
30 SOUND 1,64,20
40 WAIT 20
50 SOUND 1,67,30
60 WAIT 30
70 ENDWhat did you press?
Read controller events with INKEY$ and inspect their byte codes.
CODES.BAS
10 K$=INKEY$
20 IF K$="" THEN GOTO 10
30 PRINT "CODE=";ASC(K$)
40 GOTO 10Move your first sprite
Put a ship on screen and move it with the controller.
MOVER.BAS
10 SCREEN 1:X=80
20 SPRITE 0,X,100,0
30 J=JOY(1)
40 X=80+J/128*8
50 MOVE 0,X,100
60 WAIT 1:GOTO 30