relaunch ontop of latest grbl edge

code very messy but tested

sim/avr/interrupt.c

@@ -0,0 +1,42 @@
+/*
+  interrupt.c - replacement for the avr library of the same name to provide
+  dummy register variables
+
+  Part of Grbl Simulator
+
+  Copyright (c) 2012 Jens Geisler
+
+  Grbl is free software: you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation, either version 3 of the License, or
+  (at your option) any later version.
+
+  Grbl is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with Grbl.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "interrupt.h"
+
+// dummy register variables
+uint16_t timsk0;
+uint16_t timsk1;
+uint16_t timsk2;
+uint16_t ocr1a;
+uint16_t ocr2a;
+uint16_t tcnt0;
+uint16_t tcnt2;
+uint16_t tccr0b;
+uint16_t tccr2b;
+uint16_t tccr1b;
+uint16_t tccr0a;
+uint16_t tccr1a;
+uint16_t tccr2a;
+uint16_t pcmsk0;
+uint16_t pcicr;
+
+void sei() {};

sim/avr/interrupt.h

@@ -0,0 +1,82 @@
+/*
+  interrupt.h - replacement for the avr include of the same name to provide
+  dummy register variables and macros
+
+  Part of Grbl Simulator
+
+  Copyright (c) 2012 Jens Geisler
+
+  Grbl is free software: you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation, either version 3 of the License, or
+  (at your option) any later version.
+
+  Grbl is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with Grbl.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+
+#ifndef interrupt_h
+#define interrupt_h
+
+#include <inttypes.h>
+
+// dummy register variables
+extern uint16_t timsk0;
+extern uint16_t timsk1;
+extern uint16_t timsk2;
+extern uint16_t tcnt0;
+extern uint16_t tcnt2;
+extern uint16_t tccr0b;
+extern uint16_t tccr0a;
+extern uint16_t tccr2a;
+extern uint16_t tccr2b;
+extern uint16_t tccr1b;
+extern uint16_t tccr1a;
+extern uint16_t ocr1a;
+extern uint16_t ocr2a;
+extern uint16_t pcmsk0;
+extern uint16_t pcicr;
+
+// macros to turn avr interrupts into regular functions
+#define TIMER1_COMPA_vect
+#define ISR(a) void interrupt_ ## a ()
+
+// enable interrupts does nothing in the simulation environment
+void sei();
+
+// dummy macros for interrupt related registers
+#define TIMSK0 timsk0
+#define TIMSK1 timsk1
+#define TIMSK2 timsk2
+#define OCR1A ocr1a
+#define OCR2A ocr2a
+#define OCIE1A 0
+#define OCIE2A 0
+#define TCNT0 tcnt0
+#define TCNT2 tcnt2
+#define TCCR0B tccr0b
+#define TCCR0A tccr0a
+#define TCCR1A tccr1a
+#define TCCR1B tccr1b
+#define TCCR2A tccr2a
+#define TCCR2B tccr2b
+#define CS21 0
+#define CS10 0
+#define WGM13 0
+#define WGM12 0
+#define WGM11 0
+#define WGM10 0
+#define WGM21 0
+#define COM1A0 0
+#define COM1B0 0
+#define TOIE0 0
+#define TOIE2 0
+#define PCICR pcicr
+
+#endif

sim/avr/io.h

@@ -0,0 +1,21 @@
+/*
+  io.h - dummy replacement for the avr include of the same name
+
+  Part of Grbl Simulator
+
+  Copyright (c) 2012 Jens Geisler
+
+  Grbl is free software: you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation, either version 3 of the License, or
+  (at your option) any later version.
+
+  Grbl is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with Grbl.  If not, see <http://www.gnu.org/licenses/>.
+*/
+

sim/avr/pgmspace.c

@@ -0,0 +1,26 @@
+/*
+  pgmspace.c - replacement for the avr library of the same name to provide
+  dummy functions
+
+  Part of Grbl Simulator
+
+  Copyright (c) 2012 Jens Geisler
+
+  Grbl is free software: you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation, either version 3 of the License, or
+  (at your option) any later version.
+
+  Grbl is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with Grbl.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+// this is not really ever called in the simulation
+char pgm_read_byte_near(const char* s) {
+  return s[0];
+}

sim/avr/pgmspace.h

@@ -0,0 +1,30 @@
+/*
+  pgmspace.h - replacement for the avr include of the same name to provide
+  dummy functions andd macros
+
+  Part of Grbl Simulator
+
+  Copyright (c) 2012 Jens Geisler
+
+  Grbl is free software: you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation, either version 3 of the License, or
+  (at your option) any later version.
+
+  Grbl is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with Grbl.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef pgmspace_h
+#define pgmspace_h
+
+#define PSTR(s) s
+
+char pgm_read_byte_near(const char* s);
+
+#endif

sim/avr/sleep.h

@@ -0,0 +1,21 @@
+/*
+  sleep.h - dummy replacement for the avr include of the same name
+
+  Part of Grbl Simulator
+
+  Copyright (c) 2012 Jens Geisler
+
+  Grbl is free software: you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation, either version 3 of the License, or
+  (at your option) any later version.
+
+  Grbl is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with Grbl.  If not, see <http://www.gnu.org/licenses/>.
+*/
+