3b1emu / changelog

added RTC emulation (attempts to set the date are ignored, and the year is currently hardcoded to 1987 because UNIX PC SysV has a few Y2K bugs)

• Fri, 18 Apr 2014 01:34:20 -0600
• by andrew@localhost [Fri, 18 Apr 2014 01:34:20 -0600] rev 151
• added RTC emulation (attempts to set the date are ignored, and the year is currently hardcoded to 1987 because UNIX PC SysV has a few Y2K bugs)

treat all DMA reads/writes as kernel mode (previously it would depend on whether the processor happens to be in user mode or kernel mode when the DMA completes, which is totally incorrect); handle 32-bit accesses that straddle page boundaries properly (all 32-bit accesses are now split into two 16-bit accesses); allow reads to the entire zero page, rather than just address 0

• Fri, 18 Apr 2014 01:26:01 -0600
• by andrew@localhost [Fri, 18 Apr 2014 01:26:01 -0600] rev 150
• treat all DMA reads/writes as kernel mode (previously it would depend on whether the processor happens to be in user mode or kernel mode when the DMA completes, which is totally incorrect); handle 32-bit accesses that straddle page boundaries properly (all 32-bit accesses are now split into two 16-bit accesses); allow reads to the entire zero page, rather than just address 0

disabled seek delay on WD2010 (Unix seems to work fine without it)

• Thu, 17 Apr 2014 01:58:05 -0600
• by andrew@localhost [Thu, 17 Apr 2014 01:58:05 -0600] rev 149
• disabled seek delay on WD2010 (Unix seems to work fine without it)