From ab80852aecb06593b27c4173c34fdec78c3e6a31 Mon Sep 17 00:00:00 2001
From: Markus Hitter <mah@jump-ing.de>
Date: Sun, 6 Mar 2011 20:15:02 +0100
Subject: [PATCH] With G28 "go home" there's also no point to move E.

Saves another 96 bytes binary size.
---
 gcode_process.c | 12 +-----------
 1 file changed, 1 insertion(+), 11 deletions(-)

diff --git a/gcode_process.c b/gcode_process.c
index 36decbc..d4146ec 100644
--- a/gcode_process.c
+++ b/gcode_process.c
@@ -52,12 +52,6 @@ static void zero_z(void) {
 	enqueue(&t);
 }
 
-static void zero_e(void) {
-	TARGET t = startpoint;
-	t.E = 0;
-	enqueue(&t);
-}
-
 static void SpecialMoveE(int32_t e, uint32_t f) {
 	TARGET t = startpoint;
 	t.E = e;
@@ -184,16 +178,12 @@ void process_gcode_command() {
 					zero_z();
 					axisSelected = 1;
 				}
-				if (next_target.seen_E) {
-					zero_e();
-					axisSelected = 1;
-				}
+				// there's no point in moving E, as E is always relative
 				
 				if (!axisSelected) {
 					zero_x();
 					zero_y();
 					zero_z();
-					zero_e();
 				}
 				
 				break;