new global_logger, used in AVR_LOG(), default is stdout/stderr
refactor logger
misc: Remove outdated README

There's no point in keeping two similar README's around, and README.md
is better maintained.
misc: Add a Documentation section to README.md
misc: Add a Contributing section to README.md
core: larger data type to store extended z-pointer value
Makefile: Removed uname -o

This break on BSDs (aka OSX), this commit will break windows build, it
will need a proper fix

Signed-off-by: Michel Pollet <buserror@gmail.com>
ioport: Tweak IRQ names

Names should include the size in bits, if not 1

Signed-off-by: Michel Pollet <buserror@gmail.com>
io: Create irq names for io addresses

Set names for the io address IRQ when they are created

Signed-off-by: Michel Pollet <buserror@gmail.com>
vcd: Initializes IRQs when needed only

Also manufacture an IRQ name with the one passed in add_signal

Signed-off-by: Michel Pollet <buserror@gmail.com>
irq: Add a warning if the name is NULL

Names are not getting important, for the scripting project

Signed-off-by: Michel Pollet <buserror@gmail.com>
io,elf: pass the trace section name to getirq

avr_iomem_getirq() now takes a 'name' for the IRQs. The elf loader now
passes down the trace name so the irq gets named properly.

Signed-off-by: Michel Pollet <buserror@gmail.com>
Merge pull request #12 from ponty/logger2

new global_logger, used in AVR_LOG(), default is stdout/stderr
Revert "Merge pull request #12 from ponty/logger2"

This reverts commit 4a345c29fe62858693a226a3f6adbef1021236b1, reversing
changes made to 77c0525fa53ac81daaf277593767cc5659e2e43e.
core: Add an overridable logging function

AVR_LOG() now uses a logging function which can be overridden as
necessary. By default, it logs to stdout/stderr.

Fixed-up-by: schuay <jakob.gruber@gmail.com>
sim_core.c: extended data type to 32 bits for eicall/eijmp instruction.

	modified:   simavr/sim/sim_core.c
Merge pull request #21 from bsekisser/sim_core_eicall_eijmp_bugfix

sim_core.c: extended data type to 32 bits for eicall/eijmp instruction.