Here is a list of drivers I have worked on:

• abc80
• abc80x
• advision
• atarist
• bw2
• bw12
• coleco
• comx35
• comxpl80
• crvision
• kyocera
• mikromik
• mc1000
• mpf1
• newbrain
• osi
• pc8401a
• ql
• sg1000
• studio2
• tiki100
• tmc600
• tmc1800
• tmc2000e
• vip
• xerox820

• Refactor all MAME drivers to use i8255a instead of ppi8255
• Refactor COMX35 bus to use slots (comx35)
• Refactor ABC bus to use slots (abc80/abc80x)
• Refactor ECB bus to use slots (prof80)
• Separate the GRIP into a C++ device (prof80)
• Fix Prof-80 ↔ GRIP communication (prof80)
• Refactor all MESS devices I've written to C++ and move common ones to emu folder
• Merge the MESS and MAME i8257 implementations (pc8001)
• Modernize all MESS drivers I've written
• Convert comxpl80 into a C++ device (comx35)
• Keyboard emulation for the ABC 80x series (abc80x)
• Discrete sound for Cosmac VIP (vip)
• Tape support for Cosmac VIP (vip)
• Combine CDP1869 video and sound parts (comx35/tmc600)
• Bit-level serial emulation of the Z80 DART (abc80x)
• Improve Atari ST performance significantly (atarist)
• Convert the MC6850 to a device (6850acia)

• Refactor Lisa to use the COP421 dump (lisa)
• Complete the Z8 CPU core (jtc)
• Newbrain COP420 ROM dump (newbrain)
• uPD3301 attributes (pc8001)
• HD64180 CPU core (extended Z80)
• Tektronix 4051 vector graphics (tek4051)
• Rewrite the 80186 with all peripherals (compis, tandy2k, tek4107)
• Rewrite the shifter chip (atarist)
• Proper interrupt handling for the NEC PC-8401A/PC-8500 (pc8401)
• Add cartridge mappers for the C64 (c64)
• Discrete sound for Adventure Vision (advision)
• MSA disk image format (atarist)
• Tape support for COMX-35 (comx35)
• Real keyboard for CreatiVision (crvision)
• Real keyboard for ABC 80 (abc80)
• Real keyboard for TRS-80 Model II (trs80m2)
• Real keyboard for Xerox 820 (xerox820)
• Real keyboard for Tandy 2000 (tandy2k)
• Real keyboard for Victor 9000 (victor9k)
• Discrete sound for Studio II (studio2)
• Real CPU clock for Studio II (studio2)
• Microdrive support for Sinclair QL (ql)
• Bit-level serial emulation of the MC68901 (atarist/x68k)
• White noise emulation for the CDP1869 (comx35/tmc600)
• SG-1000 mode for Telegames Dina (coleco)