Skip to navigation

Drawing planets: PLS2

[6502 Second Processor version]

Name: PLS2 [Show more] Type: Subroutine Category: Drawing planets Summary: Draw a half-ellipse Deep dive: Drawing ellipses Drawing meridians and equators
Context: See this subroutine in context in the source code References: This subroutine is called as follows: * PL9 (Part 2 of 3) calls PLS2

Draw a half-ellipse, used for the planet's equator and meridian.
.PLS2 LDA #31 \ Set TGT = 31, so we only draw half an ellipse STA TGT \ Fall through into PLS22 to draw the half-ellipse