Jeff Parsons
c80f22e23a
Cleaned up the handling of PS bits (not to be confused with PSW, which is PS combined with A); this fixes a bug where POP PSW was inadvertently disabling the internal interrupt flag (IF)
2016-05-05 13:04:46 -07:00
Jeff Parsons
913425791e
More README updates
2016-05-04 15:46:12 -07:00
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
9dce59fbd9
Template updates
2016-05-03 16:41:08 -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
e2e5ea1b77
Sync PC8080 Bus changes with PCjs
2016-05-03 12:53:57 -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
e9099c6d38
Rounded out the PC8080 portion of the tree
2016-05-01 15:12:52 -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
ac3dc76285
DIsk updates
2016-04-30 14:11:29 -07:00
Jeff Parsons
69c6c074f9
Blog post
2016-04-30 08:33:26 -07:00
Jeff Parsons
49bcb1af62
Updated 8080 test machine README
2016-04-29 19:22:36 -07:00
Jeff Parsons
34ddef0709
Fixed PC8080 Debugger compilation error
2016-04-29 18:07:44 -07:00
Jeff Parsons
41f58a0035
The 8080 CPU now passes all the 8080 Exerciser tests
2016-04-29 17:57:28 -07:00
Jeff Parsons
a64a6e7e05
Fixed the 8080's subByteBorrow(), and improved the Debugger's doDump()
2016-04-29 08:30:21 -07:00
Jeff Parsons
01db9fc39e
More strict 8080 compatibility changes
2016-04-28 08:55:15 -07:00
Jeff Parsons
2a447fa6ae
Fixed 8080 bug exposed by the exerciser (but still a long way from 100% passing)
2016-04-27 15:36:21 -07:00
Jeff Parsons
94c1ada877
Updated comments
2016-04-27 08:39:35 -07:00
Jeff Parsons
87d4c75712
checkCPMVector() actually checks CPM_VECTORS now
2016-04-27 08:34:13 -07:00
Jeff Parsons
5b6f6756a2
More 8080 improvements, including some initial "Fake CP/M" support
2016-04-27 08:28:52 -07:00
Jeff Parsons
1e32efccc6
Add debugger option to enable 8086-style mnemonics (to minimize brain-hurting)
2016-04-26 11:43:14 -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
2a45531c2a
8080 opcode table complete
2016-04-25 09:08:39 -07:00
Jeff Parsons
ccc71d4508
More 8080 opcodes
2016-04-24 07:26:33 -07:00
Jeff Parsons
eba9428fbf
More 8080 opcodes
2016-04-23 07:26:31 -07:00
Jeff Parsons
5558a581d7
Fixed Debugger 16-bit register updates
2016-04-22 07:48:13 -07:00
Jeff Parsons
8800ed5ef8
1/4 of 8080 opcodes implemented now
2016-04-22 07:38:25 -07:00
Jeff Parsons
978d59efbf
More 8080 opcodes
2016-04-22 07:06:05 -07:00
Jeff Parsons
4173aaca31
More 8080 opcodes
2016-04-21 17:06:26 -07:00
Jeff Parsons
425f565b11
Simplified flag management
2016-04-21 15:41:58 -07:00
Jeff Parsons
f324b62493
Fixed Node rendering of PC8080 pages (all one of them)
2016-04-21 09:50:03 -07:00
Jeff Parsons
31d1b5c7e5
Fixed Jekyll rendering of pages with PC8080 machines
2016-04-20 19:21:12 -07:00
Jeff Parsons
55b99c8a08
PC8080 more or less ready for some meat on the bones now
2016-04-20 18:23:31 -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
Jeff Parsons
19b22d32d4
PC8080 skeleton
2016-04-20 07:54:58 -07:00
