1 files changed, 71 insertions, 0 deletions
diff --git a/bsps/m68k/mrm332/start/start.S b/bsps/m68k/mrm332/start/start.S
new file mode 100644
index 0000000000..5e2bbebc8e
--- /dev/null
+++ b/bsps/m68k/mrm332/start/start.S
@@ -0,0 +1,71 @@
+/**
+ *  @file
+ *
+ *  MRM332 Assembly Start Up Code
+ */
+
+/*
+ *  COPYRIGHT (c) 2000.
+ *  Matt Cross <profesor@gweep.net>
+ *
+ *  The license and distribution terms for this file may be
+ *  found in the file LICENSE in this distribution or at
+ *  http://www.rtems.org/license/LICENSE.
+ *
+ */
+
+#include "mrm332.h"
+#include <rtems/asm.h>
+#include <rtems/m68k/sim.h>
+
+BEGIN_CODE
+
+  /* Put the header necessary for the modified CPU32bug to automatically
+     start up rtems: */
+#if 1
+.long 0xbeefbeef ;
+#endif
+.long 0 ;
+.long start ;
+
+.global start
+	start:
+
+	oriw   #0x0700,sr 			/* Mask off interupts */
+
+	// Set VBR to CPU32Bug vector table address
+	movel	#0x0,d0				/* Use the initial vectors until we get going */
+	movecl	d0,vbr
+
+	movel  #end, d0				/* Next 3 instructions set stack pointer    */
+	addl   #_StackSize,d0       /* sp = end + _StackSize from linker script */
+	movel  d0,sp
+	movel  d0,a6			
+
+  /* include in ram_init.S */
+  /*
+   * Initalize the SIM module.
+   * The stack pointer is not usable until the RAM chip select lines
+   * are configured. The following code must remain inline.
+   */
+
+  /* Module Configuration Register */
+  /*    see section(s) 3.1.3-3.1.6 of the SIM Reference Manual */
+  /* SIMCR etc and SAM macro all defined in sim.h found at     */
+  /* /cpukit/score/cpu/m68k/rtems/m68k/sim.h				   */
+  /* The code below does the following:						   */
+  /*	- Sets Freeze Software Enable						   */
+  /*	- Turns off Show Cycle Enable						   */
+  /* 	- Sets the location of SIM module mapping			   */
+  /* 	- Sets the SIM Interrupt Arbitration Field			   */
+	lea	SIMCR, a0
+	movew	#FRZSW,d0
+	oriw	#SAM(0,8,SHEN),d0
+	oriw	#(MM*SIM_MM),d0
+	oriw	#SAM(SIM_IARB,0,IARB),d0
+	movew	d0, a0@
+
+	jsr	start_c /* Jump to the C startup code */
+
+END_CODE
+