Apple-2-SW/prog8
1
0
Fork 0
mirror of https://github.com/irmen/prog8.git synced 2024-11-25 19:31:36 +00:00
Code Issues Projects Releases Wiki Activity

sprites.get_data_ptr() signature changed: now properly returns the 2 values

Browse Source
This commit is contained in:
Irmen de Jong 2024-06-27 22:22:26 +02:00
parent 4f8aaf9244
commit 8efa89165c
2 changed files with 9 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
compiler/res/prog8lib/cx16/sprites.p8
View File

@ -42,9 +42,15 @@ sprites {
cx16.vpoke_mask(1, sprite_reg+1, %11110000, msb(addr)) ; address 16:13
}
sub get_data_ptr(ubyte spritenum) {
inline asmsub get_data_ptr(ubyte spritenum @A) -> ubyte @R1, uword @R0 {
; -- returns the VRAM address where the sprite's bitmap data is stored
; R1 (byte) = the vera bank (0 or 1), R0 (word) = the address.
%asm {{
jsr p8b_sprites.p8s_get_data_ptr_internal
}}
}
sub get_data_ptr_internal(ubyte spritenum) {
sprite_reg = VERA_SPRITEREGS + spritenum*$0008
cx16.r0L = cx16.vpeek(1, sprite_reg)
cx16.r0H = cx16.vpeek(1, sprite_reg+1)

2
docs/source/todo.rst
View File

@ -1,6 +1,8 @@
TODO
====
docs: stress more that the @split for word arrays can provide significant code efficiency over normal linear word array
optimizer bug, see "optimizing inlined functions must reference proper scopes" unittest (skipped for now)
causes compiler error for virtual: just calling txt.cls() gives compile error undefined symbol clear_screen