Latest revision as of 03:34, 27 April 2018

LSP_1ST ($C004C8): Clear sprites

Warning:

This system ROM call performs the following operations:

All shrinking values are set to max (all SCB2 is set to $0FFF)
All sprite heights are set to 0 and Y positions set to 496 (all SCB3 is set to $0000)
All sprite X positions are set to 380 (all SCB4 is set to $BE00)
The map of sprite #0 is set to tiles # $FF (SCB1 $0000~$0040 to $00FF,$0000)

@@ Line 1: / Line 1: @@
-== [[BIOSF_CLEARSPR]] ($C004C8): Clear sprites ==
+=LSP_1ST ($C004C8): Clear sprites=
-'''Warning:''' register contents aren't preserved ! (Uses D0, D1, and A0)
+'''Warning:'''
+* Register contents aren't preserved ! (Uses D0, D1, and A0)
+* VRAM address is modified
-*All maps are cleared with tile # $FF, no special attributes (all [[sprites|SCB1]] to $00FF,$0000)
+This [[system ROM]] call performs the following operations:
-*All shrinking values are set to max (all [[sprites|SCB2]] to $0FFF)
-*All heights cleared to 0 (all [[sprites|SCB3]] to $0000)
+* All [[Sprite_shrinking|shrinking]] values are set to max (all [[sprites|SCB2]] is set to $0FFF)
-*All X positions are set to 380 (all [[sprites|SCB4]] to $BE00)
+* All sprite heights are set to 0 and Y positions set to 496 (all [[sprites|SCB3]] is set to $0000)
+* All sprite X positions are set to 380 (all [[sprites|SCB4]] is set to $BE00)
+* The map of sprite #0 is set to tiles # $FF ([[sprites|SCB1]] $0000~$0040 to $00FF,$0000)
 [[Category:BIOS calls]]