Project Amethyst Code

Split ListingWriter into a base class; add new class, OrderedListingWriter
which stores instructions by address and attempts to guess which instructions
belong to which line of source.

The logic assumes that the next instruction address after a line of source
belongs to that line of source, and so do all following instructions until the
address associated with the next line of code. Allowances are made for
code sections and end-of-src-file.

Add bytes_per_instr argument to ListingWriter

fix bug wherein empty lines of source would be omitted.

Renamed class.

Add proper option parser

Refactor output code: now put instruction counter inline with C code

Add assembly code discontinuity detection. It seems MP2COD gets confused
and, while it outputs correct instructions at the correct addresses, it
appears to put some instructions in the wrong place in the listing file
(ie, addresses are out-of-order).

An attempt to fix this order in a future commit.

add support for accel_thresh in [deviceX]

Implement ping-pong buffers.

This code reimplements the HIDTxPacket API in the interests of speed.

Move usb_device_local.h to include/USB because the EP macro is needed
by pa_usb.h, which gets included by project sources. It should have
been there anyway, but this is how it comes in the Microchip package.

Modify usb_device.c to compensate.

Also add a diff to show where the base package has been modified
for PA's needs.

force order of evaluation of operand types, so that 'f' operands are
translated before 'd' operands

add GOTO, RCALL and branch (unlikely ever to be useful) support

attempt to guess BSR and resolve BSR references

first pass at a listing file annotator. only 18f4550 tested.