Christmas Challenge
vc23 Author: Art-top and UriS Category: Christmas Challenge System: ZX Spectrum Language: Assembler Len source code: 823 Len exe file: 105 Len code only: 23 Instructions: You can use any emulator of your choice. I recommend Unreal (Windows); in most cases it's enough to drag&drop the vc23c.tap file into emulator's window, then go to BASIC and type: LOAD""CODE 58643: CLS: RANDOMIZE USR 58643: PAUSE 0 Or drag&drop the vc23.tap file into emulator's window, and go to "Type Loader". Source code in vc23.asm You can compile it using sjasmplus (for example) from terminal/command promt: sjasmplus.exe vc23.asm or sjasmplus vc23.asm Description: External cycles (calculation of coordinates). One of coordinates decreases from the initial value to a value of less than 0. When the value is reached less than 0, the offset is added to coordinate and second coordinate is reduced by 1. When zero reaches, the program stops. Inner cycle (asterisk output cycle). The program print asterisk, mirrors one of the coordinates and prints asterisk again. This can repeat several times. vc23.asm - source code vc23.bin - compiled code vc23c.tap - compiled code in .tap format vc23.tap - compiled code an BASIC loader together in .tap format UriS - algorithm idea Art-top - code and optimization Comments: It was very interesting.
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