Jeff Parsons
cf596ee224
Avoid deprecation warnings regarding image smoothing, by carefully checking for properties in order of least to most deprecatable (what a delightful process)
2016-05-04 13:16:37 -07:00
Jeff Parsons
59c3ddc83b
Supoprt for overlay colors
2016-05-03 16:24:41 -07:00
Jeff Parsons
377b9895fa
PC8080 bufferRotate option appears to be working as well the screenRotate option, so when everything else is working, we can choose whichever rotation method yields the best performance
2016-05-03 13:16:07 -07:00
Jeff Parsons
db5db398fb
Startup/status message tweaks
2016-05-03 12:44:22 -07:00
Jeff Parsons
c31f6222a1
Added smoothing control to both PCjs and PC8080 (setting it to false should probably be the new default)
...
It can be controlled with a new "smoothing" attribute on the <video> component and/or overridden with a "smoothing" URL parameter set to either "true" or "false"
2016-05-03 09:11:02 -07:00
Jeff Parsons
5fbcc034e3
Eliminate unwanted pixel scaling
2016-05-02 19:58:36 -07:00
Jeff Parsons
180ef91a72
Final tweaks to screen rotation (for now)
2016-05-02 17:28:13 -07:00
Jeff Parsons
7bc35ad9af
Move invariant bits out of updateScreen's inner loop
2016-05-02 16:32:12 -07:00
Jeff Parsons
7c6eb85811
Fixed Space Invaders buffer update (the left-most pixel of every byte is bit 0, not bit 7 as in PC video adapters)
2016-05-02 16:20:54 -07:00
Jeff Parsons
3941cf8ff6
Fixed Space Invaders buffer update (the left-most pixel of every byte is bit 0, not bit 7 as in PC video adapters)
2016-05-02 16:19:50 -07:00
Jeff Parsons
a56f1cfde1
The 8080 CPU goes through the Bus interfaces for all memory accesses now. The PCjs CPU maintained its own copy of Bus memory structures and interfaces, partly for improved performance but also because some CPUs can turn on address translation (ie, paging), making separate interfaces a necessity. However, PC8080 has much lower performance requirements and no address translation requirements, so we should revert to the original Bus interfaces.
2016-05-02 12:54:55 -07:00
Jeff Parsons
108e2abefa
Enable 90-degree screenRotation (this may not be the final/best solution, but it's a convenient one for now)
2016-05-02 11:38:01 -07:00
Jeff Parsons
59b6dd3be6
Ported some PCjs drawing code to PC8080, still needs work though
2016-05-02 09:01:06 -07:00
Jeff Parsons
8c5ab8d73b
Clean up the CPU/ChipSet interface, and get the PC8080 Video component ready to actually do something
2016-05-01 10:13:43 -07:00
Jeff Parsons
07259c93ef
Infrastructure in place for 8080 hardware interrupts (more specifically, vertical retrace interrupts)
2016-04-25 18:39:43 -07:00
Jeff Parsons
87d01130bd
Make the PC8080 prototype page more responsive
2016-04-20 16:43:01 -07:00
Jeff Parsons
8971097b3b
More PC8080 structural fixes
2016-04-20 13:37:37 -07:00
Jeff Parsons
79fb14fdbf
Support for machines other than PCjs and C1Pjs
2016-04-20 12:09:59 -07:00
Jeff Parsons
a2d183ecfc
More PC8080 skeleton bits
2016-04-20 09:36:58 -07:00
