DavidL
→The 6845 Registers: Add explanation
+290
DavidL
→The 6845 Registers: R12 is set to 0x30 (48) : MA13=1 MA12=1 => A15=1 A14=1 to start video at address 0xC000
mArnoldemu
→UM6845R and R31
+727
Thomasharte
→Addressing: the top two bits of MA are retained, not the almost-top-two.
-1
Arnoldemu
→HSYNC and VSYNC
-29
Arnoldemu
no edit summary
+348
Arnoldemu
→DISPTMG
+211
Arnoldemu
→HSYNC and VSYNC
+570
Arnoldemu
no edit summary
Arnoldemu
→Datasheets
+1
Arnoldemu
→UM6845R status register
-79
Arnoldemu
→UM6845R and R12/R13
+360
Arnoldemu
→The 6845 Registers
+109
Arnoldemu
→The Internal registers of the 6845 are
-6
Arnoldemu
→HSYNC and VSYNC
+1
Arnoldemu
→Programming
+1
Arnoldemu
→Programming
-8
Arnoldemu
→Programming
+270
Arnoldemu
→Overview
-271
Arnoldemu
→Overview
+5
Arnoldemu
→Overview
-52
Arnoldemu
→Programming the CRTC
-85
Arnoldemu
→Type 4 - PreASIC
-24
Arnoldemu
→Type 3 - The ASIC
-25
Arnoldemu
→Type 2 - MC6845 / MC6845P
-33
Arnoldemu
→Type 1 - UM6845R
-24
Arnoldemu
→Type 0 - HD6845SP / HD6845S / UM6845
-44