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تفصیل
English: An Amstrad CPC emulated in MAME running a short Locomotive BASIC demo program which displays color bars similar to SMPTE color bars or EBU colour bars.
تریخ
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مصنف Morn

Locomotive BASIC program

10 mode 0
20 ink 1,26:ink 2,24:ink 3,20:ink 4,18
30 ink 5,8:ink 6,6:ink 7,2:ink 8,0
40 for i=1 to 8
50 paper i
60 print space$(40);
70 next

Program notes

  • Key words are printed in uppercase when the program is output with "list". But entering code is usually done in lowercase.
  • line 10: screen mode 0 is used (16 colours; 20x25 characters)
  • lines 20/30: set up colour palette; note that multiple instructions can be combined on a line
  • lines 40 to 70: a "for" loop over i
  • line 50: set the paper (background) colour to i
  • line 60: print 40 spaces (= 2 lines); space$ is a built-in function that returns a string
  • When the program ends, the "Ready" prompt is white-on-black because the current foreground (pen) colour, which is 1, had been set to white ("ink 1,26"). The background colour is 8 after the loop and "ink 8,0" had set that to black previously. See File:Amstrad CPC ink numbers.png for a chart of Amstrad ink numbers.

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I, the copyright holder of this work, hereby publish it under the following license:
Creative Commons CC-Zero This file is made available under the Creative Commons CC0 1.0 Universal Public Domain Dedication.
The person who associated a work with this deed has dedicated the work to the public domain by waiving all of their rights to the work worldwide under copyright law, including all related and neighboring rights, to the extent allowed by law. You can copy, modify, distribute and perform the work, even for commercial purposes, all without asking permission.

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depicts سرائیکی ► skr

Locomotive BASIC سرائیکی ► skr

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Creative Commons CC0 License سرائیکی ► skr

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٢٤ دسمبر 2023

media type سرائیکی ► skr

image/gif

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