6502/CLK
1
0
Fork 0
mirror of https://github.com/TomHarte/CLK.git synced 2024-11-29 12:50:28 +00:00
Code Issues Projects Releases Wiki Activity

Fetch colour from before attribute table.

Browse Source
This commit is contained in:
Thomas Harte 2023-02-19 22:10:22 -05:00
parent 54be424159
commit 6990ba9242
1 changed files with 6 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
Components/9918/Implementation/Fetch.hpp
View File

@ -205,7 +205,7 @@ class SpriteFetcher {
sprite_selection_buffer(sprite_selection_buffer),
y(y) {}
void fetch_location(int slot, [[maybe_unused]] int name_slot = 0) {
void fetch_location(int slot) {
fetch_xy(slot);
if constexpr (mode == SpriteMode::Mode2) {
@ -248,7 +248,7 @@ class SpriteFetcher {
}
void fetch_image(int slot, uint8_t name) {
const AddressT graphic_location = base->sprite_generator_table_address_ & bits<11>(AddressT((name << 3) | tile_buffer.active_sprites[slot].row));
const AddressT graphic_offset = bits<11>(AddressT((name << 3) | tile_buffer.active_sprites[slot].row));
uint8_t colour = 0;
switch(mode) {
@ -262,12 +262,15 @@ class SpriteFetcher {
case SpriteMode::Mode2: {
// Fetch colour from the colour table, per this sprite's name and row.
colour = base->ram_[graphic_location & ~512];
colour = base->ram_[
base->sprite_attribute_table_address_ & AddressT(~512) & graphic_offset
];
} break;
}
tile_buffer.active_sprites[slot].image[2] = colour;
tile_buffer.active_sprites[slot].x -= (colour & 0x80) >> 2;
const AddressT graphic_location = base->sprite_generator_table_address_ & graphic_offset;
tile_buffer.active_sprites[slot].image[0] = base->ram_[graphic_location];
tile_buffer.active_sprites[slot].image[1] = base->ram_[graphic_location+16];
}