From: asterix <asterix@38d2e660-2303-0410-9eaa-f027e97ec537>
Date: Tue, 27 May 2008 15:32:43 +0000 (+0000)
Subject: Move pc assembly code to emul dir.
X-Git-Tag: 2.0.0~544
X-Git-Url: https://codewiz.org/gitweb?a=commitdiff_plain;h=89080d17850a68d57281c14430ee74c94b7f359d;p=bertos.git

Move pc assembly code to emul dir.

git-svn-id: https://src.develer.com/svnoss/bertos/trunk@1390 38d2e660-2303-0410-9eaa-f027e97ec537
---

diff --git a/bertos/emul/switch.S b/bertos/emul/switch.S
new file mode 100644
index 00000000..93d9b7c7
--- /dev/null
+++ b/bertos/emul/switch.S
@@ -0,0 +1,8 @@
+#if defined(__i386__)
+	#include "switch_i386.s"
+#elif defined(__x86_64__)
+	#include "switch_x86_64.s"
+#else
+	#error Unknown CPU
+#endif
+
diff --git a/bertos/emul/switch_i386.s b/bertos/emul/switch_i386.s
new file mode 100644
index 00000000..6931d45c
--- /dev/null
+++ b/bertos/emul/switch_i386.s
@@ -0,0 +1,44 @@
+/*!
+ * \file
+ * <!--
+ * Copyright 2004 Develer S.r.l. (http://www.develer.com/)
+ * Copyright 1999,2000,2001 Bernardo Innocenti <bernie@develer.com>
+ * This file is part of DevLib - See devlib/README for information.
+ * -->
+ *
+ * \brief i386 context switch
+ *
+ * \version $Id$
+ *
+ * \author Bernardo Innocenti <bernie@develer.com>
+ */
+
+/* void asm_switch_context(void ** new_sp, void ** save_sp) */
+.globl asm_switch_context
+asm_switch_context:
+	pushl	%eax
+	pushl	%ebx
+	pushl	%ecx
+	pushl	%edx
+	pushl	%esi
+	pushl	%edi
+	pushl	%ebp
+	movl	0x24(%esp),%ebp         /* ebp = save_sp */
+	movl	%esp,(%ebp)             /* *save_sp = esp */
+	movl	0x20(%esp),%ebp         /* ebp = new_sp */
+	movl	(%ebp),%esp             /* esp = *new_sp */
+	popl	%ebp
+	popl	%edi
+	popl	%esi
+	popl	%edx
+	popl	%ecx
+	popl	%ebx
+	popl	%eax
+	ret
+
+/* int asm_switch_version(void) */
+.globl asm_switch_version
+asm_switch_version:
+	mov	$1,%eax
+	ret
+
diff --git a/bertos/emul/switch_win32.s b/bertos/emul/switch_win32.s
new file mode 100644
index 00000000..5891ae90
--- /dev/null
+++ b/bertos/emul/switch_win32.s
@@ -0,0 +1,58 @@
+/*!
+ * \file
+ * <!--
+ * Copyright 2004 Develer S.r.l. (http://www.develer.com/)
+ * Copyright 1999,2000,2001 Bernardo Innocenti <bernie@develer.com>
+ * This file is part of DevLib - See devlib/README for information.
+ * -->
+ *
+ * \brief i386 context switch for WIN32
+ *
+ * \version $Id$
+ *
+ * \author Bernardo Innocenti <bernie@develer.com>
+ */
+
+!!!!!! THIS FILE HAS NOT BEEN REVISED FOR THE NEW SCHEDULER API !!!!!!
+
+__declspec(naked) void AsmSwitchContext(void * new_sp, void ** save_sp)
+{
+	__asm
+	{
+		push	eax
+		push	ebx
+		push	ecx
+		push	edx
+		push	esi
+		push	edi
+		push	ebp
+		mov		ebp,dword ptr [esp+24h]	; ebp <- save_sp
+		mov		dword ptr [ebp],esp		; *save_sp = esp
+		mov		esp,dword ptr [esp+20h]	; new_sp
+		pop		ebp
+		pop		edi
+		pop		esi
+		pop		edx
+		pop		ecx
+		pop		ebx
+		pop		eax
+		ret
+	}
+}
+
+__declspec(naked) void AsmReplaceContext(void * new_sp, void ** dummy)
+{
+	__asm
+	{
+		mov		esp,dword ptr [esp + 4]	; new_sp
+		pop		ebp
+		pop		edi
+		pop		esi
+		pop		edx
+		pop		ecx
+		pop		ebx
+		pop		eax
+		ret
+	}
+}
+
diff --git a/bertos/emul/switch_x86_64.s b/bertos/emul/switch_x86_64.s
new file mode 100644
index 00000000..5fb4da65
--- /dev/null
+++ b/bertos/emul/switch_x86_64.s
@@ -0,0 +1,71 @@
+/*!
+ * \file
+ * <!--
+ * Copyright 2004 Develer S.r.l. (http://www.develer.com/)
+ * Copyright 1999,2000,2001 Bernardo Innocenti <bernie@develer.com>
+ * This file is part of DevLib - See devlib/README for information.
+ * -->
+ *
+ * \brief i386 context switch
+ *
+ * \version $Id$
+ *
+ * \author Bernardo Innocenti <bernie@develer.com>
+ */
+
+/*
+ * $Log$
+ * Revision 1.4  2006/09/20 14:02:49  marco
+ * C-style comment.
+ *
+ * Revision 1.3  2006/02/24 01:35:40  bernie
+ * Update for new emulator.
+ *
+ * Revision 1.2  2006/02/24 01:17:05  bernie
+ * Update for new emulator.
+ *
+ * Revision 1.1  2005/11/27 03:06:15  bernie
+ * Add x86_64 task switching (to be updated to new-style scheduler).
+ *
+ * Revision 1.1  2005/11/14 21:06:38  bernie
+ * Add x86_64 support.
+ *
+ * Revision 1.2  2004/06/06 16:14:12  bernie
+ * Add DevLib license information.
+ *
+ * Revision 1.1  2004/05/23 17:27:00  bernie
+ * Import kern/ subdirectory.
+ *
+ */
+
+/* I know it's ugly... */
+/* .intel_syntax */
+
+/* void AsmSwitchContext(void **new_sp, void **save_sp) */
+/*                       %rdi           %rsi            */
+.globl asm_switch_context
+asm_switch_context:
+	pushq	%rax
+	pushq	%rbx
+	pushq	%rcx
+	pushq	%rdx
+	pushq	%rsi
+	pushq	%rdi
+	pushq	%rbp
+	movq	%rsp,(%rsi)             /* *save_sp = rsp */
+	movq	(%rdi),%rsp             /* rsp = *new_sp */
+	popq	%rbp
+	popq	%rdi
+	popq	%rsi
+	popq	%rdx
+	popq	%rcx
+	popq	%rbx
+	popq	%rax
+	ret
+
+/* int asm_switch_version(void) */
+.globl asm_switch_version
+asm_switch_version:
+	mov	$1,%rax
+	ret
+