sorted sources per functionality in different subdirs

xhdi/xhdi_vec.S

@@ -0,0 +1,63 @@
+/*
+ * xhdi_vec.S
+ *
+ * XHDI entry point for EmuTOS into BaS' SD-card driver
+ *
+ * This file is part of BaS_gcc.
+ *
+ * BaS_gcc 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.
+ *
+ * BaS_gcc 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 BaS_gcc.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ *  Created on: 26.02.2013
+ *      Author: Markus Fröschle
+ *///
+// XHDI entry point
+//
+		.extern	_xhdi_call
+
+		.globl	_xhdi_vec
+		.globl	_xhdi_sd_install
+
+//
+// this is where the XHDI cookie points to:
+//
+
+		.text
+		dc.b	'B','A','S','_'
+_xhdi_vec:
+		lea     -12(sp),sp		// save all used registers according to XHDI spec
+		movem.l d1/a0-a1,(sp)
+
+		pea     16(sp)			// forward address of parameters on stack
+		jsr		_xhdi_call		// to internal routine
+		addq.l  #4,sp			// correct stack
+
+		movem.l (sp),d1/a0-a1	// restore registers
+		lea     12(sp),sp
+		rts
+
+		.bss
+_old_vector:
+		.ds.l	1
+
+		.text
+
+//
+// trap #0 handler to bring the address of the disk routines into TOS
+//
+_xhdi_sd_install:
+		move.l	4(sp),d0		// address of the old XHDI vector
+		move.l	d0,_old_vector	// save it - just in case we need it later
+		move.l	#_xhdi_vec,d0	// return our BaS vector to TOS
+		move.l	d0,a0			//
+		rte