Added chipset and xta interface to Philips machines.

Major refactoring.

src/win/Makefile.mingw

@@ -619,10 +619,12 @@ CHIPSETOBJ	:= acc2168.o cs8230.o ali1217.o ali1429.o headland.o intel_82335.o cs
 		    intel_420ex.o intel_4x0.o intel_sio.o intel_piix.o ioapic.o \
 		    neat.o opti495.o opti895.o opti5x7.o scamp.o scat.o via_vt82c49x.o via_vt82c505.o \
 		    sis_85c310.o sis_85c4xx.o sis_85c496.o sis_85c50x.o opti283.o opti291.o \
+			gc100.o \
 		    via_apollo.o via_pipc.o wd76c10.o vl82c480.o
 
 MCHOBJ		:= machine.o machine_table.o \
 		    m_xt.o m_xt_compaq.o \
+			m_xt_philips.o \
 		    m_xt_t1000.o m_xt_t1000_vid.o \
 		    m_xt_xi8088.o m_xt_zenith.o \
 		    m_pcjr.o \
@@ -644,9 +646,9 @@ DEVOBJ		:= bugger.o hwm.o hwm_lm75.o hwm_lm78.o hwm_gl518sm.o hwm_vt82c686.o ibm
 		   keyboard.o \
 		    keyboard_xt.o keyboard_at.o \
 		   mouse.o \
-		    mouse_bus.o \
+			mouse_bus.o \
 		    mouse_serial.o mouse_ps2.o \
-			phoenix_486_jumper.o olivetti_m290_registers.o
+			phoenix_486_jumper.o
 
 SIOOBJ		:= sio_acc3221.o \
 		    sio_f82c710.o sio_82091aa.o \