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[/] [xulalx25soc/] - Rev 81

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81 Adds register values for the SD-Card registers. dgisselq 2914d 07h /xulalx25soc/
80 Currently working version: contains both a working DMA controller as well as
a working (as far as I can tell) SD-Card controller (writes not yet tested).		 dgisselq 2914d 07h /xulalx25soc/
79 Adds 'bench' and 'sw' targets, and automatically builds them (now). dgisselq 2914d 07h /xulalx25soc/
78 Comments out the line that caused a compiler warning--setting an unused
variable. Code should be better as a result.		 dgisselq 2914d 08h /xulalx25soc/
77 Adds register names and values for the SD card interface. dgisselq 2914d 08h /xulalx25soc/
76 Now tries to avoid reading from the stack if the stack addresses are already
known to be bad. That way, the debugger tries to preserve any bus error address
already on the buserr device.		 dgisselq 2914d 08h /xulalx25soc/
75 Added simulation capability for the SD-Card, as well as debugging output for the
DMA. (The SD-Card debug may not be fully featured, yet, but it has gotten me
to where I can talk to the card.)		 dgisselq 2914d 08h /xulalx25soc/
74 Adds the SD-card capability, and connects the debug wires to/from the uartdev
in case it needs to be debugged.		 dgisselq 2914d 08h /xulalx25soc/
73 Simplified logic. dgisselq 2914d 08h /xulalx25soc/
72 Sets XULA25 as the default. dgisselq 2914d 08h /xulalx25soc/
71 Needed to play with subtle timing to get this to build. Expect me to play
with these two clock numbers more.		 dgisselq 2914d 08h /xulalx25soc/
70 Cosmetic (minor) update. dgisselq 2914d 08h /xulalx25soc/
69 Massive logic simplification. This is also the first (verified) working
version.		 dgisselq 2914d 08h /xulalx25soc/
68 Fixes the debug ack line, so it no longer acks when there isn't a dbg_stb.
Fixed the multiply option parameter, so it sets a 3-clock multiply properly.
Adjusted the watchdog timer so that it now produces a timer that doesn't
reload--since this is pointless for a watchdog. Finally, connects a reset
line to the DMA, to make certain that resetting the CPU will also reset any
ongoing DMA operation.		 dgisselq 2914d 08h /xulalx25soc/
67 Simplifies logic, and guarantees that the minimum set value will always
produce an int. For example, if the count was X before, setting X-1 wouldn't
produce an interrupt since it had passed. Now it produces an interrupt, and
keeps the next interrupt valid.		 dgisselq 2914d 08h /xulalx25soc/
66 Simplified logic (barely). dgisselq 2914d 08h /xulalx25soc/
65 Makes the auto-reload feature a parameterized (generic) feature, so the same
code will work for both auto-reloadable and non-autoreloadable (i.e. watchdog)
timers.		 dgisselq 2914d 08h /xulalx25soc/
64 First (verified) working version. dgisselq 2914d 08h /xulalx25soc/
63 Simplified logic. dgisselq 2914d 08h /xulalx25soc/
62 Removed the pipe logic from the non-pipelined version, and made the NOOP a
specific ALU instruction so that the PC is always properly updated.		 dgisselq 2914d 08h /xulalx25soc/

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