Add submodule dependency filesHEADmaster

Change-Id: Iaf8d18082d3991dec7c0ebbea540f092188eb4ec

1 files changed, 91 insertions, 0 deletions

diff --git a/roms/openbios/libopenbios/init.c b/roms/openbios/libopenbios/init.c
new file mode 100644
index 000000000..f96b6211e
--- /dev/null
+++ b/roms/openbios/libopenbios/init.c
@@ -0,0 +1,91 @@
+/*
+ *   Creation Date: <2010/04/02 12:00:00 mcayland>
+ *   Time-stamp: <2010/04/02 12:00:00 mcayland>
+ *
+ *	<init.c>
+ *
+ *	OpenBIOS intialization
+ *
+ *   Copyright (C) 2010 Mark Cave-Ayland (mark.cave-ayland@siriusit.co.uk)
+ *
+ *   This program is free software; you can redistribute it and/or
+ *   modify it under the terms of the GNU General Public License
+ *   version 2
+ *
+ */
+
+#include "config.h"
+#include "libc/byteorder.h"
+#include "libopenbios/openbios.h"
+#include "libopenbios/bindings.h"
+#include "libopenbios/initprogram.h"
+#define NO_QEMU_PROTOS
+#include "arch/common/fw_cfg.h"
+
+
+/*
+ *  le-w!          ( w waddr -- )
+ */
+
+static void lewstore(void)
+{
+	u16 *aaddr = (u16 *)cell2pointer(POP());
+	const u16 word = POP();
+	*aaddr = __cpu_to_le16(word);
+}
+
+/*
+ *  le-l!          ( quad qaddr -- )
+ */
+
+static void lelstore(void)
+{
+	u32 *aaddr = (u32 *)cell2pointer(POP());
+	const u32 longval = POP();
+	*aaddr = __cpu_to_le32(longval);
+}
+
+/*
+ *  le-w@          ( waddr -- w )
+ */
+
+static void lewfetch(void)
+{
+	const u16 *aaddr = (u16 *)cell2pointer(POP());
+	PUSH(__le16_to_cpu(*aaddr));
+}
+
+/*
+ *  le-l@          ( qaddr -- quad )
+ */
+
+static void lelfetch(void)
+{
+	const u32 *aaddr = (u32 *)cell2pointer(POP());
+	PUSH(__le32_to_cpu(*aaddr));
+}
+
+void
+openbios_init( void )
+{
+	// Bind the saved program state context into Forth
+	PUSH(pointer2cell((void *)&__context));
+	feval("['] __context cell+ !");
+	
+#if defined(CONFIG_DRIVER_FW_CFG)
+	// Bind the Forth fw_cfg file interface
+	bind_func("fw-cfg-read-file", forth_fw_cfg_read_file);
+#endif
+	
+	// Bind the C implementation of (init-program) into Forth
+	bind_func("(init-program)", init_program);
+	
+	// Bind the C implementation of (go) into Forth
+	bind_func("(go)", go);
+	
+	// Bind the LE access words
+	bind_func("le-w!", lewstore);
+	bind_func("le-l!", lelstore);
+	bind_func("le-w@", lewfetch);
+	bind_func("le-l@", lelfetch);
+}