From 61ba976360804d85f9203821518bb4b132852188 Mon Sep 17 00:00:00 2001
From: Joel Sherrill <joel.sherrill@OARcorp.com>
Date: Tue, 22 Feb 2000 18:39:52 +0000
Subject: New port of RTEMS to TI C3x and C4x.

---
 c/src/lib/libbsp/c4x/c4xsim/start/Makefile.am | 32 ++++++++++++
 c/src/lib/libbsp/c4x/c4xsim/start/start.S     | 71 +++++++++++++++++++++++++++
 2 files changed, 103 insertions(+)
 create mode 100644 c/src/lib/libbsp/c4x/c4xsim/start/Makefile.am
 create mode 100644 c/src/lib/libbsp/c4x/c4xsim/start/start.S

(limited to 'c/src/lib/libbsp/c4x/c4xsim/start')

diff --git a/c/src/lib/libbsp/c4x/c4xsim/start/Makefile.am b/c/src/lib/libbsp/c4x/c4xsim/start/Makefile.am
new file mode 100644
index 0000000000..824d7a22c5
--- /dev/null
+++ b/c/src/lib/libbsp/c4x/c4xsim/start/Makefile.am
@@ -0,0 +1,32 @@
+## 
+## $Id$
+## 
+
+AUTOMAKE_OPTIONS = foreign 1.4
+
+PGM = $(ARCH)/start.o
+
+S_FILES = start.S
+S_O_FILES = $(S_FILES:%.S=$(ARCH)/%.o)
+
+OBJS = $(S_O_FILES)
+
+include $(RTEMS_ROOT)/make/custom/@RTEMS_BSP@.cfg
+include $(top_srcdir)/../../../../../../automake/lib.am
+
+#
+# (OPTIONAL) Add local stuff here using +=
+#
+
+$(PROJECT_RELEASE)/lib/start$(LIB_VARIANT).o: $(PGM)
+	$(INSTALL_DATA) $< $@
+
+TMPINSTALL_FILES += $(PROJECT_RELEASE)/lib/start$(LIB_VARIANT).o
+
+all-local: $(ARCH) $(OBJS) $(PGM) $(TMPINSTALL_FILES)
+
+.PRECIOUS: $(PGM)
+
+EXTRA_DIST = start.S
+
+include $(top_srcdir)/../../../../../../automake/local.am
diff --git a/c/src/lib/libbsp/c4x/c4xsim/start/start.S b/c/src/lib/libbsp/c4x/c4xsim/start/start.S
new file mode 100644
index 0000000000..2123fc24c3
--- /dev/null
+++ b/c/src/lib/libbsp/c4x/c4xsim/start/start.S
@@ -0,0 +1,71 @@
+/*
+ *  This start.S is a combination of the files boot.s and crt0.s
+ *  provided by Herman ...XXX
+ */
+
+	; .file	"crt0.s"
+	.ref	_c_int00
+	.global	start
+	.global	_start
+
+	.if	.tms320C40
+
+	.sect	".const"
+mem_control:
+	.word	000100000h
+mem_data:
+	.word	03ef78050h
+
+	.text
+start:
+_start:
+	ldi	0800h,st
+	ldp	@mem_control
+	ldi	@mem_control,ar0
+	ldp	@mem_data	
+	ldi	@mem_data,r0
+	sti	r0,*+ar0(0)
+	sti	r0,*+ar0(4)
+	br	_c_int00
+
+	.else
+
+	.sect	".const"
+mem_control:
+	.word	000808000h
+mem_data:
+	.word	000001f00h
+
+	.text
+start:
+_start:
+	ldi	0800h,st
+	ldp	@mem_control
+	ldi	@mem_control,ar0
+	ldp	@mem_data	
+	ldi	@mem_data,r0
+	sti	r0,*+ar0(0)
+	sti	r0,*+ar0(4)
+	br	_c_int00
+
+	.endif
+	; .file	"boot.s"
+	.global	__stack
+	.global	_c_int00
+	.ref	.bss
+	.ref	_boot_card
+	.ref	_exit
+
+__stack: .usect  ".stack",0
+        .text
+stack_addr:  .word  __stack
+
+_c_int00:
+        ldp     stack_addr
+        ldi     @stack_addr,sp
+        ldi     sp,ar3
+        ldp     .bss		; For the small model, set up the DP to .bss
+	ldi	0,ar2		; make sure argc=0 with regparm
+	push	ar2		; and memparm
+        call    _boot_card
+        call	_sim_exit
-- 
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