mjb/altos/s51/s51.h, branch branch-1.4

Move build and debug tools to 'cctools' directory.

2009-06-04T18:20:10+00:00

These tools were merged in from the ccdbg package. Signed-off-by: Keith Packard

Save/restore registers to host during memory operations. Cache ROM data.

2008-12-31T06:38:35+00:00

Because the debug port uses instructions for most operations, the debug code will clobber registers used by the running program. Save and restore these to avoid corrupting application data. If the ROM file is known, use that to return data instead of fetching it from the target to improve performance. Signed-off-by: Keith Packard

Use SFR access funcs. Support 'dump' command. Add -m (monitor) flag.

2008-12-28T08:11:13+00:00

Not all SFRs are visible in the unified address space, so the SFR-specific accessors are required. The dump command is the same as the various 'd*' commands, but also supports dumping program memory. The new -m (monitor) flag watches the command stream between s51 and sdcdb. Signed-off-by: Keith Packard

s51: add breakpoints and the ability to block awaiting a breakpoint.

2008-12-27T01:58:48+00:00

Signed-off-by: Keith Packard

Add more commands to s51 assembly-language debugger

2008-12-23T03:11:56+00:00

Signed-off-by: Keith Packard

Add preliminary version of s51, a UI clone of the 8051 emulator.

2008-12-22T07:33:42+00:00

sdcdb provides source-level debugging using the 8051 emulator, s51. By emulating that emulator a the UI level, we should be able to get source debugging right on our target platform. This is just the preliminary structure for the program with most commands not yet implemented.