Lucas Scharenbroich
9cc5b2e3af
Generalize to allow differrnt play field sizes
2023-07-07 15:57:46 -05:00
Lucas Scharenbroich
4c13373bd3
Fix addressing bug that caused serious overdraw
2023-06-27 21:33:59 -05:00
Lucas Scharenbroich
cdfc414a9f
Fix relative offset from interrupt enable code and fix order bug in exit code path
2023-06-27 21:32:21 -05:00
Lucas Scharenbroich
cb5e9b0b25
Add interrupt breaks in the lite blitter to allow music to keep playing
2023-06-26 17:17:23 -05:00
Lucas Scharenbroich
6a0b8cbdc1
Fix restore code field bug. SMB demo can use renderer
2023-06-26 14:15:20 -05:00
Lucas Scharenbroich
2013771524
Lite render mode bugfixes
2023-06-26 11:21:05 -05:00
Lucas Scharenbroich
94dafd2093
Checkpoint
2023-06-25 21:45:34 -05:00
Lucas Scharenbroich
28016b6780
Move error check outside of loop
2023-06-17 12:33:22 -05:00
Lucas Scharenbroich
aeb620fb7b
Added sprite and background disable control bits
2023-05-28 07:49:37 -05:00
Lucas Scharenbroich
b40bc0dd2b
Don't crash on OOB
2023-05-22 00:04:50 -05:00
Lucas Scharenbroich
d3a7eecc6e
Mostly working PPU integration with GTE rendering pipeline
2023-05-21 17:50:05 -05:00
Lucas Scharenbroich
25c82cc44b
Initial palette work; fix memory init bug
2023-05-16 22:38:54 -05:00
Lucas Scharenbroich
cb13c2ae2d
Secret sauce
2023-05-16 12:34:18 -05:00
Lucas Scharenbroich
869d80af1e
Comment cleanup and minro refactoring
2023-04-28 00:13:05 -05:00
Lucas Scharenbroich
57f57ce533
Restore shadow reg instead of overwriting
2023-04-27 23:38:26 -05:00
Lucas Scharenbroich
b449d983ee
Checkpoint for WIP scanline render fix for overlays+sprites and user-defined tiles
2023-04-26 00:41:17 -05:00
Lucas Scharenbroich
dc5742dd11
Remove dead code from codebase
2023-03-14 09:23:01 -05:00
Lucas Scharenbroich
b154bcf361
Sync up header files and add back CopyToBG1 behavior as a selectable feature
2023-03-12 15:39:41 -05:00
Lucas Scharenbroich
065603a758
Core updates for BG1 scanline support
2023-03-11 03:41:41 -06:00
Lucas Scharenbroich
7dd690ac04
Implement fix for scanline mode compensation in BG1
2023-03-10 19:00:26 -06:00
Lucas Scharenbroich
9021ee4506
WIP of BG1 scanline effects
...
A static BG1 is stable with BG0 offset values. A seam in BG1
needs to be closed up by taking into account the BG1XOrigin value
when setting the :shift_value.
Also, several routines were hard-coded for the scanline case. These
hanges need to be reverted and properly parametereized.
2023-03-10 15:50:42 -06:00
Lucas Scharenbroich
e3409f92fa
Add per-scanline offset rendering.
2023-03-09 15:29:58 -06:00
Lucas Scharenbroich
3a78398ea7
Remove dead label
2023-03-09 00:26:31 -06:00
Lucas Scharenbroich
029ab62f0c
Fix accidental double-addition of the screen origin
2023-03-08 14:15:11 -06:00
Lucas Scharenbroich
a70412211c
Simplify and specialize the even/odd patching
...
Allows the odd case to be slightly more efficient and the
code is cleaned up by not having to handle both even and odd
alignment cases at multiple points.
2023-03-08 12:49:45 -06:00
Lucas Scharenbroich
536959619f
Refine the horizontal dispatch
...
Find small optimizations to improve the average performance of the
blitter, especially in the odd-aligned case.
- Odd-aligned PEA exit is 2 cycles faster per line
- Odd-aligned JMP exit is 2 cycles faster per line
- Odd-aligned LDA exit is 6 cycles faster (eliminated long store)
- Merged setting the entry opcode and offset to convert 2 8-bit
store into a single 16-bit store (save 6 cycles per line)
- Load and save the full word for the high bytes. Cost 2 cycles
but enabled the 6 cycles saved for the LDA case.
2023-03-07 17:32:46 -06:00
Lucas Scharenbroich
6832c7f405
Update dynamic tile rendered to use fixed snippets. Add DAMAGES flag for the one render that doesn't fit the mold
2023-03-03 21:44:39 -06:00
Lucas Scharenbroich
dd9ced08f1
Transition to fixed snippets
2023-03-02 23:24:03 -06:00
Lucas Scharenbroich
c14f3c7283
Functional compiled sprites in demo-5
2023-03-01 13:18:37 -06:00
Lucas Scharenbroich
981182592e
Shadow based rendering working in demo-5
2023-02-27 15:30:56 -06:00
Lucas Scharenbroich
b8a7641307
Add in all linked list operations
2022-09-08 21:51:00 -05:00
Lucas Scharenbroich
eaedee546e
Remove dead / obsolete code
2022-09-02 20:38:10 -05:00
Lucas Scharenbroich
217a1176a9
Remove obsolete blitter routines
2022-09-02 20:37:26 -05:00
Lucas Scharenbroich
3fce46872d
Checkpoint; blitter failing
2022-08-14 07:45:58 -05:00
Lucas Scharenbroich
e378dc6e26
Checkpoint with TF4 demo framework
2022-08-11 14:14:25 -05:00
Lucas Scharenbroich
5883de1f71
Checkpoint
2022-08-01 21:46:00 -05:00
Lucas Scharenbroich
7a6c4e5ff4
Break up Ypos loop into pre/loop/post segment to optimize. Saved ~5,000 cycles/sec. When applied to the other routines will save a few thousand more cycles
2022-07-31 11:51:42 -05:00
Lucas Scharenbroich
794bc1fc09
Start adding scanline variants
2022-07-30 11:04:13 -05:00
Lucas Scharenbroich
456744027d
Inline all functions that are only called once
...
Eliminates the JSR/RTS overhead for the copy functions. Combined
with the other streamlining, we save around 60 - 70 cycles per
bank, or a total savings of around 10,000 cycles per seconds when
running at full screen.
This doesn't really change the FPS, but just gives some cycles
back to the main application logic.
2022-07-28 13:15:46 -05:00
Lucas Scharenbroich
fa731f4b2d
Streamline restore BG0; experiment with more aggressive inlining
2022-07-28 12:15:00 -05:00
Lucas Scharenbroich
0f920acd03
Eliminate redundent register loads
2022-07-28 11:57:14 -05:00
Lucas Scharenbroich
acf0276ff5
Get vertical rotation scaling going
2022-07-22 16:00:41 -05:00
Lucas Scharenbroich
18da2546bd
Add horizontal scaling to the background rotation
2022-07-22 02:01:34 -05:00
Lucas Scharenbroich
6c531619f9
Merge branch 'fixup-rotations' into kfest-2022
2022-07-21 23:35:53 -05:00
Lucas Scharenbroich
23f3626293
Fix issues preventing BG1 per-line offsets from working
2022-07-16 16:42:41 -05:00
Lucas Scharenbroich
0ab7fa9d81
Two layer demos
2022-07-16 15:22:23 -05:00
Lucas Scharenbroich
4506f808c9
Restore BG1 rotation code
2022-07-12 21:03:30 -05:00
Lucas Scharenbroich
182ebfd566
Set dirty render to the correct direct page and several small cleanups
2022-07-06 14:55:27 -05:00
Lucas Scharenbroich
a51c973865
Fix addressing bug in SCB binding
2022-06-27 00:41:02 -05:00
Lucas Scharenbroich
78ee683ba8
Stub in a lot of the remaining functions
2022-06-25 11:17:50 -05:00
