Small core cleanup (nw)
no need for including assert.h since overload is in emucore.h that we already include with emu.h(nw)
reverting r28187, if menus are unusable at that size user should make window bigger (nw)
Fixed crash introduced in r29533 when the 6551 transmitter and receiver is shutdown (nw)
MESS: clcd.c default the centronics port to empty, the built in apps can't print to centronics anyway (nw)
(mess) ser_mouse: make msft mouse work again (nw)
isa8_device and isa16_device: converted to devcb2 (nw)
bitbanger_device: converted to devcb2 (nw)
Loading coco doesn't crash, but someone familiar with the system should test it. Thanks!
z88cart_slot_device: converted to devcb2 (nw)
(mess) at: simplify, simplify (nw)
iq151cart_slot_device: converted to devcb2 (nw)
x68k_expansion_slot_device: converted to devcb2 (nw)
cpc_expansion_slot_device: converted to devcb2 (nw)
scudsp_cpu_device: converted to devcb2 (nw)
aakart_device: converted to devcb2 (nw)
MOS 6551 Fixed uninitialised variable that could prevent transmit irq from being generated after reset. [smf]
tvcexp_slot_device: converted to devcb2 (nw)
sh2: converted to use delegates, so to finally remove the remaining static variables used by 32x. nw.
(MESS) clcd.c fixed irq hookup. [smf]
ignore reads from the debugger (nw)