preliminary PPC support

second/PPC_asm.S

@@ -0,0 +1,11 @@
+/*
+ *
+ * (c) 2005 Laurent Vivier <LaurentVivier@wanadoo.fr>
+ *
+ */
+
+	.chip 68020
+
+	.global PPC_disable_cache
+PPC_disable_cache:
+	rts

second/enter_kernelPPC.S

@@ -0,0 +1,44 @@
+/*
+ *
+ * (c) 2005 Laurent Vivier <LaurentVivier@wanadoo.fr>
+ *
+ */
+
+	.chip 68020
+
+	.include "copymem.i"
+
+	.align 4
+
+	.global enter_kernelPPC
+enter_kernelPPC:
+	link.w  %fp,#-8
+
+	/* get physical start address of kernel */
+
+	move.l	8(%fp), %a0
+
+	/* size of image to relocate */
+
+	move.l	12(%fp), %d0
+
+	/* destination addresse */
+
+	move.l	16(%fp), %a2
+
+	/* copy kernel to destination address */
+
+	move.l	%a2, %a1
+	
+	copymem	%a0, %a2, %d0
+
+	/* jump into kernel */
+
+	jmp	%a1@
+
+	/* never comes here... I hope */
+
+	unlk    %fp
+	rts
+	.global end_enter_kernelPPC
+end_enter_kernelPPC: