log vdp.h @ 1325:58bfbed6cdb5

age author description
Fri, 21 Apr 2017 01:22:52 -0700 Michael Pavone Fairly major rework of how active/passive is handled along with how the V30 mode bit is handled. Allows the vertical border extension trick in Overdrive 2 to work right
Tue, 18 Apr 2017 19:27:10 -0700 Michael Pavone Initial stab at implementing the output disable/layer selection bits of the VDP test register
Sun, 16 Apr 2017 16:40:04 -0700 Michael Pavone Initial work on handling the 128KB VRAM mode bit and some basic prep work for VDP test register support
Mon, 06 Mar 2017 00:23:35 -0800 Michael Pavone Initial stab at horizontal border emulation. Only works for H40 and still has a few minor holes to fill
Sun, 15 Jan 2017 15:07:24 -0800 Michael Pavone Initial work on emulating top and bottom border area
Thu, 05 Jan 2017 00:36:23 -0800 Michael Pavone Implemented Mode 4 H conter latching
Wed, 04 Jan 2017 20:43:22 -0800 Michael Pavone Don't lock up CPU if performing a read with writes configured when in PBC mode. Allow access to VDP debug commands from Z80 debugger in PBC mode. Handle Mode 4 in VDP debug print functions