Better support the IIe's aux slot when it's empty or has the 80-col(1KiB) card.
- any h/w using this alternate CPU emulation, (ie. aux=empty or 80-col(1KiB)), then the 'mem' cache is completely bypassed.
Debugger: change all the direct 'mem' accesses to go via ReadByteFromMemory().
TestCPU6502: test the alt CPU emulation code too.
Add new command line switch: -aux <empty|std80|ext80|rw3>
Add 6502/65C02 x normal/debugger alt read support for CPU emulation (#1353).
Fix bug in MemReadFloatingBus() reading from mem[] - no good, if MF_AUXREAD is set.
Support odd 80-col text video mode when aux slot is empty:
. add a new videoMode flag for VF_80COL_AUX_EMPTY.
Correctly support 80COL & DHIRES soft-switches when aux slot is empty or with std80 card.
Support VidHD's SHR with -aux <empty|std80>.
Save-state: support aux slot empty or with std80 card.
Removed 65d02.h and reconstructed this code using a combination of existing 6502.h/65c02.h and extra C Pre-Processor macros to include (or omit) the extra heatmap functionality.
We still end up with a normal 65c02 instance and also a debug 65c02 instance, but both will derive from the same 65c02.h file (+ same for the 6502 normal/debug instances).
Also:
. Added cpu_heatmap.inl for the built-in debugger's read/write operations.
. Support CpuRead/Write() from Z80 to hook the heatmap r/w.