Peter Evans
2318b1917a
This form needs two RORs to work
...
That's because the first ROR pushes the 1 in bit0 into the carry bit;
the second moves the carry bit into the bit7 position, which will match
128.
2018-02-19 22:01:30 -06:00
Peter Evans
d590a809d8
Tests should reflect how carry is handled in ROL/R now
2018-02-19 21:59:55 -06:00
Peter Evans
0b03fd24f5
Carry must also be factored in
2018-01-23 20:26:01 -06:00
Peter Evans
7d6886a3a8
Change last_addr field to eff_addr
2018-01-12 13:57:48 -06:00
Peter Evans
8d9b48912e
Add memory injection to 6502; main memory in apple2
...
Note that memory _is_ now managed in apple2, and _not_ in mos6502.
2018-01-10 21:28:05 -06:00
Peter Evans
1de1e7788a
Rename status flags to MOS_
2018-01-05 14:18:39 -06:00
Peter Evans
96b2542ea6
CARRY should be set if oper > 0
...
This error became apparent once we added the missing modify_status
function to some instructions.
2017-12-09 14:47:49 -06:00
Peter Evans
00ff9f069d
Vastly simplify unit tests for mos6502
...
Criterion's init and fini config options allow us to register setup and
teardown functions. We now use this to register the common cpu variable
for the mos6502 tests, albeit through the use of a global variable.
Doing so necessitated that each of the different test files have their
own suites, due to some implementation details in Criterion, but this is
No Big Deal.
2017-12-06 15:57:15 -06:00
Peter Evans
87de0a877a
Add all our tests, plus other fixes
2017-12-03 20:19:17 -06:00
