From: John Hodge <tpg@prelude.mutabah.net>
Date: Fri, 2 Apr 2010 07:48:24 +0000 (+0800)
Subject: VM8086 Support, Starting on VESA Driver
X-Git-Tag: rel0.06~259
X-Git-Url: https://git.ucc.asn.au/?a=commitdiff_plain;h=049de1f2533477716a12a708c097b199eaa8fb6c;p=tpg%2Facess2.git

VM8086 Support, Starting on VESA Driver
- VM8086 required some changes to CPU fault code
- Re-enabled kernel magic combos in keyboard driver
- Slight changes to Memory APIs (changed MM_MapHWPage to MM_MapHWPages)
---

diff --git a/Kernel/Makefile.BuildNum b/Kernel/Makefile.BuildNum
index dc7f7ff2..a5712863 100644
--- a/Kernel/Makefile.BuildNum
+++ b/Kernel/Makefile.BuildNum
@@ -1 +1 @@
-BUILD_NUM = 1636
+BUILD_NUM = 1696
diff --git a/Kernel/arch/x86/Makefile b/Kernel/arch/x86/Makefile
index 87dd2b23..708c8dc1 100644
--- a/Kernel/arch/x86/Makefile
+++ b/Kernel/arch/x86/Makefile
@@ -31,5 +31,5 @@ endif
 
 A_OBJ  = start.ao main.o lib.o desctab.ao errors.o irq.o
 A_OBJ += mm_phys.o mm_virt.o
-A_OBJ += proc.o time.o
+A_OBJ += proc.o time.o vm8086.o
 #A_OBJ += gdb_stub.o
diff --git a/Kernel/arch/x86/errors.c b/Kernel/arch/x86/errors.c
index cfc70753..b53807aa 100644
--- a/Kernel/arch/x86/errors.c
+++ b/Kernel/arch/x86/errors.c
@@ -11,6 +11,7 @@
 
 // === IMPORTS ===
 extern void	MM_PageFault(Uint Addr, Uint ErrorCode, tRegs *Regs);
+extern void	VM8086_GPF(tRegs *Regs);
 extern void Threads_Dump();
 
 // === PROTOTYPES ===
@@ -44,6 +45,9 @@ void ErrorHandler(tRegs *Regs)
 	Uint	cr;
 	__asm__ __volatile__ ("cli");
 	
+	//Log_Debug("X86", "Error %i at 0x%08x", Regs->int_num, Regs->eip);
+	
+	// Page Fault
 	if(Regs->int_num == 14)
 	{
 		__asm__ __volatile__ ("mov %%cr2, %0":"=r"(cr));
@@ -51,6 +55,13 @@ void ErrorHandler(tRegs *Regs)
 		return ;
 	}
 	
+	// VM8086 GPF
+	if(Regs->int_num == 13 && Regs->eflags & 0x20000)
+	{
+		VM8086_GPF(Regs);
+		return ;
+	}
+	
 	Warning("CPU Error %i - %s, Code: 0x%x",
 		Regs->int_num, csaERROR_NAMES[Regs->int_num], Regs->err_code);
 	Warning(" CS:EIP = 0x%04x:%08x", Regs->cs, Regs->eip);
diff --git a/Kernel/arch/x86/include/vm8086.h b/Kernel/arch/x86/include/vm8086.h
index cb2834c2..353ad7a3 100644
--- a/Kernel/arch/x86/include/vm8086.h
+++ b/Kernel/arch/x86/include/vm8086.h
@@ -9,21 +9,59 @@
 #define _VM80806_H_
 
 // === TYPES ===
+/**
+ * \note Semi-opaque - Past \a .IP, the implementation may add any data
+ *       it needs to the state.
+ */
 typedef struct sVM8086
 {
 	Uint16	AX, CX, DX, BX;
 	Uint16	BP, SP, SI, DI;
 	
-	Uint16	CS, SS, DS, ES;
+	Uint16	SS, DS, ES;
+	
+	Uint16	CS, IP;
 	
-	Uint16	IP;
+	struct sVM8086_InternalData	*Internal;
 }	tVM8086;
 
 // === FUNCTIONS ===
+/**
+ * \brief Create an instance of the VM8086 Emulator
+ * \note Do not free this pointer with ::free, instead use ::VM8086_Free
+ * \return Pointer to a tVM8086 structure, this structure may be larger than
+ *         tVM8086 due to internal data.
+ */
 extern tVM8086	*VM8086_Init(void);
+/**
+ * \brief Free an allocated tVM8086 structure
+ * \param State	Emulator state to free
+ */
 extern void	VM8086_Free(tVM8086 *State);
-extern void	*VM8086_Allocate(tVM8086 *State, int Size, Uint16 *Segment, Uint16 *Ofs);
+/**
+ * \brief Allocate a piece of memory in the emulated address space and
+ *        return a host and emulated pointer to it.
+ * \param State	Emulator state
+ * \param Size	Size of memory block
+ * \param Segment	Pointer to location to store the allocated memory's segment
+ * \param Offset	Pointet to location to store the allocated memory's offset
+ * \return Host pointer to the allocated memory
+ */
+extern void	*VM8086_Allocate(tVM8086 *State, int Size, Uint16 *Segment, Uint16 *Offset);
+/**
+ * \brief Gets a pointer to a piece of emulated memory
+ * \todo Only 1 machine page is garenteed to be contiguous
+ * \param State	Emulator State
+ * \param Segment	Source Segment
+ * \param Offset	Source Offset
+ * \return Host pointer to the emulated memory
+ */
 extern void *VM8086_GetPointer(tVM8086 *State, Uint16 Segment, Uint16 Ofs);
+/**
+ * \brief Calls a real-mode interrupt described by the current state of the IVT.
+ * \param State	Emulator State
+ * \param Interrupt	BIOS Interrupt to call
+ */
 extern void	VM8086_Int(tVM8086 *State, Uint8 Interrupt);
 
 #endif
diff --git a/Kernel/arch/x86/mm_phys.c b/Kernel/arch/x86/mm_phys.c
index 988a15e4..f091c63a 100644
--- a/Kernel/arch/x86/mm_phys.c
+++ b/Kernel/arch/x86/mm_phys.c
@@ -73,7 +73,7 @@ void MM_Install(tMBoot_Info *MBoot)
 		ent = (tMBoot_MMapEnt *)( (Uint)ent + ent->Size );
 	}
 	
-	// Get used page count
+	// Get used page count (Kernel)
 	kernelPages = (Uint)&gKernelEnd - KERNEL_BASE - 0x100000;
 	kernelPages += 0xFFF;	// Page Align
 	kernelPages >>= 12;
@@ -211,8 +211,13 @@ tPAddr MM_AllocPhysRange(int Pages, int MaxBits)
 	 int	i, idx, sidx;
 	tPAddr	ret;
 	
+	ENTER("iPages iMaxBits", Pages, MaxBits);
+	
 	// Sanity Checks
-	if(MaxBits < 0)	return 0;
+	if(MaxBits < 0) {
+		LEAVE('i', 0);
+		return 0;
+	}
 	if(MaxBits > PHYS_BITS)	MaxBits = PHYS_BITS;
 	
 	// Lock
@@ -230,16 +235,28 @@ tPAddr MM_AllocPhysRange(int Pages, int MaxBits)
 	b = idx % 32;
 	a = idx / 32;
 	
+	#if 0
+	LOG("a=%i, b=%i, idx=%i, sidx=%i", a, b, idx, sidx);
+	
 	// Find free page
-	for( ; gaSuperBitmap[a] == -1 && a --; );
+	for( ; gaSuperBitmap[a] == -1 && a --; )	b = 31;
 	if(a < 0) {
 		RELEASE( &giPhysAlloc );
 		Warning("MM_AllocPhysRange - OUT OF MEMORY (Called by %p)", __builtin_return_address(0));
+		LEAVE('i', 0);
 		return 0;
 	}
-	for( ; gaSuperBitmap[a] & (1 << b); b-- );
+	LOG("a = %i", a);
+	for( ; gaSuperBitmap[a] & (1 << b); b-- )	sidx = 31;
+	LOG("b = %i", b);
 	idx = a * 32 + b;
-	for( ; gaPageBitmap[idx] & (1 << sidx); sidx-- );
+	for( ; gaPageBitmap[idx] & (1 << sidx); sidx-- )
+		LOG("gaPageBitmap[%i] = 0x%08x", idx, gaPageBitmap[idx]);
+	
+	LOG("idx = %i, sidx = %i", idx, sidx);
+	#else
+	
+	#endif
 	
 	// Check if the gap is large enough
 	while( idx >= 0 )
@@ -284,6 +301,8 @@ tPAddr MM_AllocPhysRange(int Pages, int MaxBits)
 	if( idx < 0 ) {
 		RELEASE( &giPhysAlloc );
 		Warning("MM_AllocPhysRange - OUT OF MEMORY (Called by %p)", __builtin_return_address(0));
+		LEAVE('i', 0);
+		return 0;
 	}
 	
 	// Mark pages used
@@ -293,7 +312,7 @@ tPAddr MM_AllocPhysRange(int Pages, int MaxBits)
 			gaPageReferences[idx*32+sidx] = 1;
 		gaPageBitmap[ idx ] |= 1 << sidx;
 		sidx ++;
-		if(sidx == 32) {	sidx = 0;	idx ++;	}
+		if(sidx == 32) { sidx = 0;	idx ++;	}
 	}
 	
 	// Get address
@@ -305,6 +324,7 @@ tPAddr MM_AllocPhysRange(int Pages, int MaxBits)
 	// Release Spinlock
 	RELEASE( &giPhysAlloc );
 	
+	LEAVE('X', ret);
 	return ret;
 }
 
diff --git a/Kernel/arch/x86/mm_virt.c b/Kernel/arch/x86/mm_virt.c
index 958b9f15..6976c657 100644
--- a/Kernel/arch/x86/mm_virt.c
+++ b/Kernel/arch/x86/mm_virt.c
@@ -895,10 +895,10 @@ void MM_FreeTemp(tVAddr VAddr)
 }
 
 /**
- * \fn tVAddr MM_MapHWPage(tPAddr PAddr, Uint Number)
+ * \fn tVAddr MM_MapHWPages(tPAddr PAddr, Uint Number)
  * \brief Allocates a contigous number of pages
  */
-tVAddr MM_MapHWPage(tPAddr PAddr, Uint Number)
+tVAddr MM_MapHWPages(tPAddr PAddr, Uint Number)
 {
 	 int	i, j;
 	
@@ -962,7 +962,7 @@ tVAddr MM_AllocDMA(int Pages, int MaxBits, tPAddr *PhysAddr)
 	{
 		phys = MM_AllocPhys();
 		*PhysAddr = phys;
-		ret = MM_MapHWPage(phys, 1);
+		ret = MM_MapHWPages(phys, 1);
 		if(ret == 0) {
 			MM_DerefPhys(phys);
 			LEAVE('i', 0);
@@ -981,7 +981,7 @@ tVAddr MM_AllocDMA(int Pages, int MaxBits, tPAddr *PhysAddr)
 	}
 	
 	// Allocated successfully, now map
-	ret = MM_MapHWPage(phys, Pages);
+	ret = MM_MapHWPages(phys, Pages);
 	if( ret == 0 ) {
 		// If it didn't map, free then return 0
 		for(;Pages--;phys+=0x1000)
@@ -996,10 +996,10 @@ tVAddr MM_AllocDMA(int Pages, int MaxBits, tPAddr *PhysAddr)
 }
 
 /**
- * \fn void MM_UnmapHWPage(tVAddr VAddr, Uint Number)
+ * \fn void MM_UnmapHWPages(tVAddr VAddr, Uint Number)
  * \brief Unmap a hardware page
  */
-void MM_UnmapHWPage(tVAddr VAddr, Uint Number)
+void MM_UnmapHWPages(tVAddr VAddr, Uint Number)
 {
 	 int	i, j;
 	// Sanity Check
@@ -1022,6 +1022,6 @@ void MM_UnmapHWPage(tVAddr VAddr, Uint Number)
 EXPORT(MM_GetPhysAddr);
 EXPORT(MM_Map);
 //EXPORT(MM_Unmap);
-EXPORT(MM_MapHWPage);
+EXPORT(MM_MapHWPages);
 EXPORT(MM_AllocDMA);
-EXPORT(MM_UnmapHWPage);
+EXPORT(MM_UnmapHWPages);
diff --git a/Kernel/arch/x86/proc.c b/Kernel/arch/x86/proc.c
index a66a540c..b2f7f8f5 100644
--- a/Kernel/arch/x86/proc.c
+++ b/Kernel/arch/x86/proc.c
@@ -15,6 +15,7 @@
 
 // === CONSTANTS ===
 #define	SWITCH_MAGIC	0xFFFACE55	// There is no code in this area
+// Base is 1193182
 #define TIMER_DIVISOR	11931	//~100Hz
 
 // === IMPORTS ===
@@ -47,6 +48,7 @@ void	Proc_Start();
 tThread	*Proc_GetCurThread();
 void	Proc_ChangeStack();
  int	Proc_Clone(Uint *Err, Uint Flags);
+void	Proc_StartProcess(Uint16 SS, Uint Stack, Uint Flags, Uint16 CS, Uint IP);
 void	Proc_Scheduler();
 
 // === GLOBALS ===
@@ -601,13 +603,18 @@ void Proc_StartUser(Uint Entrypoint, Uint *Bases, int ArgC, char **ArgV, char **
 	while(*Bases)
 		*--stack = *Bases++;
 	*--stack = 0;	// Return Address
-	delta = (Uint)stack;	// Reuse delta to save SP
 	
-	*--stack = ss;		//Stack Segment
-	*--stack = delta;	//Stack Pointer
-	*--stack = 0x0202;	//EFLAGS (Resvd (0x2) and IF (0x20))
-	*--stack = cs;		//Code Segment
-	*--stack = Entrypoint;	//EIP
+	Proc_StartProcess(ss, (Uint)stack, 0x202, cs, Entrypoint);
+}
+
+void Proc_StartProcess(Uint16 SS, Uint Stack, Uint Flags, Uint16 CS, Uint IP)
+{
+	Uint	*stack = (void*)Stack;
+	*--stack = SS;		//Stack Segment
+	*--stack = Stack;	//Stack Pointer
+	*--stack = Flags;	//EFLAGS (Resvd (0x2) and IF (0x20))
+	*--stack = CS;		//Code Segment
+	*--stack = IP;	//EIP
 	//PUSHAD
 	*--stack = 0xAAAAAAAA;	// eax
 	*--stack = 0xCCCCCCCC;	// ecx
@@ -618,10 +625,10 @@ void Proc_StartUser(Uint Entrypoint, Uint *Bases, int ArgC, char **ArgV, char **
 	*--stack = 0x51515151;	// esi
 	*--stack = 0xB4B4B4B4;	// ebp
 	//Individual PUSHs
-	*--stack = ss;	// ds
-	*--stack = ss;	// es
-	*--stack = ss;	// fs
-	*--stack = ss;	// gs
+	*--stack = SS;	// ds
+	*--stack = SS;	// es
+	*--stack = SS;	// fs
+	*--stack = SS;	// gs
 	
 	__asm__ __volatile__ (
 	"mov %%eax,%%esp;\n\t"	// Set stack pointer
diff --git a/Kernel/arch/x86/vm8086.c b/Kernel/arch/x86/vm8086.c
new file mode 100644
index 00000000..abc08dce
--- /dev/null
+++ b/Kernel/arch/x86/vm8086.c
@@ -0,0 +1,329 @@
+/*
+ * Acess2 VM8086 Driver
+ * - By John Hodge (thePowersGang)
+ */
+#include <acess.h>
+#include <vm8086.h>
+#include <modules.h>
+
+// === CONSTANTS ===
+#define VM8086_MAGIC_CS	0xFFFF
+#define VM8086_MAGIC_IP	0x0010
+#define VM8086_STACK_SEG	0x9F00
+#define VM8086_STACK_OFS	0x0AFE
+enum eVM8086_Opcodes
+{
+	VM8086_OP_PUSHF	= 0x9C,
+	VM8086_OP_POPF	= 0x9D,
+	VM8086_OP_INT_I	= 0xCD,
+	VM8086_OP_IRET	= 0xCF
+};
+#define VM8086_PAGES_PER_INST	4
+
+// === IMPORTS ===
+ int	Proc_Clone(Uint *Err, Uint Flags);
+
+// === TYPES ===
+struct sVM8086_InternalData
+{
+	struct {
+		Uint32	Bitmap;	// 32 sections = 128 byte blocks
+		tVAddr	VirtBase;
+		tPAddr	PhysAddr;
+	}	AllocatedPages[VM8086_PAGES_PER_INST];
+};
+
+// === PROTOTYPES ===
+ int	VM8086_Install(char **Arguments);
+void	VM8086_GPF(tRegs *Regs);
+tVM8086	*VM8086_Init(void);
+
+// === GLOBALS ===
+MODULE_DEFINE(0, 0x100, VM8086, VM8086_Install, NULL, NULL);
+tSpinlock	glVM8086_Process;
+tPID	gVM8086_WorkerPID;
+tTID	gVM8086_CallingThread;
+tVM8086	* volatile gpVM8086_State;
+
+// === FUNCTIONS ===
+int VM8086_Install(char **Arguments)
+{
+	tPID	pid;	
+	
+	// Create BIOS Call process
+	pid = Proc_Clone(NULL, CLONE_VM);
+	if(pid == -1)
+	{
+		Log_Error("VM8086", "Unable to clone kernel into VM8086 worker");
+		return MODULE_ERR_MISC;
+	}
+	if(pid == 0)
+	{
+		Uint	*stacksetup;	// Initialising Stack
+		Uint16	*rmstack;	// Real Mode Stack
+		 int	i;
+		 
+		// Set Image Name
+		Threads_SetName("VM8086");
+		
+		// Map ROM Area
+		for(i=0xA0;i<0x100;i++) {
+			MM_Map( i * 0x1000, i * 0x1000 );
+			MM_SetFlags( i * 0x1000, MM_PFLAG_RO, MM_PFLAG_RO );	// Set Read Only
+		}
+		MM_Map( 0, 0 );	// IVT / BDA
+		for(i=0x70;i<0x80;i++) {
+			MM_Map( i * 0x1000, i * 0x1000 );	MM_DerefPhys( i * 0x1000 );
+		}
+		MM_Map( 0x9F000, 0x9F000 );	// Stack / EBDA
+		MM_Allocate( 0x100000 );	// System Stack / Stub
+		
+		*(Uint8*)(0x100000) = VM8086_OP_IRET;
+		*(Uint8*)(0x100001) = 0x07;	// POP ES
+		*(Uint8*)(0x100002) = 0x1F;	// POP DS
+		*(Uint8*)(0x100003) = 0xCB;	// RET FAR
+		
+		rmstack = (Uint16*)(VM8086_STACK_SEG*16 + VM8086_STACK_OFS);
+		*rmstack-- = 0xFFFF;	//CS
+		*rmstack-- = 0x0010;	//IP
+		
+		// Setup Stack
+		stacksetup = (Uint*)0x101000;
+		*--stacksetup = VM8086_STACK_SEG;	// GS
+		*--stacksetup = VM8086_STACK_SEG;	// FS
+		*--stacksetup = VM8086_STACK_SEG;	// DS
+		*--stacksetup = VM8086_STACK_SEG;	// ES
+		*--stacksetup = VM8086_STACK_SEG;	// SS
+		*--stacksetup = VM8086_STACK_OFS-2;	// SP
+		*--stacksetup = 0x20202;	// FLAGS
+		*--stacksetup = 0xFFFF;	// CS
+		*--stacksetup = 0x10;	// IP
+		*--stacksetup = 0xAAAA;	// AX
+		*--stacksetup = 0xCCCC;	// CX
+		*--stacksetup = 0xDDDD;	// DX
+		*--stacksetup = 0xBBBB;	// BX
+		*--stacksetup = 0x5454;	// SP
+		*--stacksetup = 0xB4B4;	// BP
+		*--stacksetup = 0x5151;	// SI
+		*--stacksetup = 0xD1D1;	// DI
+		*--stacksetup = 0x20|3;	// DS - Kernel
+		*--stacksetup = 0x20|3;	// ES - Kernel
+		*--stacksetup = 0x20|3;	// FS
+		*--stacksetup = 0x20|3;	// GS
+		__asm__ __volatile__ (
+		"mov %%eax,%%esp;\n\t"	// Set stack pointer
+		"pop %%gs;\n\t"
+		"pop %%fs;\n\t"
+		"pop %%es;\n\t"
+		"pop %%ds;\n\t"
+		"popa;\n\t"
+		"iret;\n\t" : : "a" (stacksetup));
+		for(;;);	// Shouldn't be reached
+	}
+	
+	gVM8086_WorkerPID = pid;
+	Log_Log("VM8086", "gVM8086_WorkerPID = %i", pid);
+	Threads_Yield();	// Yield to allow the child to initialise
+	
+	return MODULE_ERR_OK;
+}
+
+void VM8086_GPF(tRegs *Regs)
+{
+	Uint8	opcode;
+	
+	//Log_Log("VM8086", "GPF - %04x:%04x", Regs->cs, Regs->eip);
+	
+	if(Regs->eip == VM8086_MAGIC_IP && Regs->cs == VM8086_MAGIC_CS
+	&& Threads_GetPID() == gVM8086_WorkerPID)
+	{
+		if( gpVM8086_State ) {
+			gpVM8086_State->AX = Regs->eax;	gpVM8086_State->CX = Regs->ecx;
+			gpVM8086_State->DX = Regs->edx;	gpVM8086_State->BX = Regs->ebx;
+			gpVM8086_State->BP = Regs->ebp;
+			gpVM8086_State->SI = Regs->esi;	gpVM8086_State->DI = Regs->edi;
+			gpVM8086_State->DS = Regs->ds;	gpVM8086_State->ES = Regs->es;
+			gpVM8086_State = NULL;
+			Threads_WakeTID(gVM8086_CallingThread);
+		}
+		
+		//Log_Log("VM8086", "Waiting for something to do");
+		__asm__ __volatile__ ("sti");
+		// Wait for a new task
+		while(!gpVM8086_State) {
+			Threads_Sleep();
+			//Log_Log("VM8086", "gpVM8086_State = %p", gpVM8086_State);
+		}
+		
+		//Log_Log("VM8086", "We have a task");
+		Regs->esp -= 2;	*(Uint16*)( (Regs->ss<<4) + (Regs->esp&0xFFFF) ) = VM8086_MAGIC_CS;
+		Regs->esp -= 2;	*(Uint16*)( (Regs->ss<<4) + (Regs->esp&0xFFFF) ) = VM8086_MAGIC_IP;
+		Regs->esp -= 2;	*(Uint16*)( (Regs->ss<<4) + (Regs->esp&0xFFFF) ) = gpVM8086_State->CS;
+		Regs->esp -= 2;	*(Uint16*)( (Regs->ss<<4) + (Regs->esp&0xFFFF) ) = gpVM8086_State->IP;
+		Regs->esp -= 2;	*(Uint16*)( (Regs->ss<<4) + (Regs->esp&0xFFFF) ) = gpVM8086_State->DS;
+		Regs->esp -= 2;	*(Uint16*)( (Regs->ss<<4) + (Regs->esp&0xFFFF) ) = gpVM8086_State->ES;
+		
+		// Set Registers
+		Regs->eip = 0x11;	Regs->cs = 0xFFFF;
+		Regs->eax = gpVM8086_State->AX;	Regs->ecx = gpVM8086_State->CX;
+		Regs->edx = gpVM8086_State->DX;	Regs->ebx = gpVM8086_State->BX;
+		Regs->esi = gpVM8086_State->SI;	Regs->edi = gpVM8086_State->DI;
+		Regs->ebp = gpVM8086_State->BP;
+		Regs->ds = 0x23;	Regs->es = 0x23;
+		Regs->fs = 0x23;	Regs->gs = 0x23;
+		return ;
+	}
+	
+	opcode = *(Uint8*)( KERNEL_BASE + (Regs->cs*16) + (Regs->eip) );
+	Regs->eip ++;
+	switch(opcode)
+	{
+	case VM8086_OP_PUSHF:	//PUSHF
+		Regs->esp -= 2;
+		*(Uint16*)( Regs->ss*16 + (Regs->esp&0xFFFF) ) = Regs->eflags & 0xFFFF;
+		#if TRACE_EMU
+		Log_Debug("VM8086", "Emulated PUSHF");
+		#endif
+		break;
+	case VM8086_OP_POPF:	//POPF
+		Regs->eflags &= 0xFFFF0002;
+		Regs->eflags |= *(Uint16*)( Regs->ss*16 + (Regs->esp&0xFFFF) ) & 0xFFFD;	// Changing IF is not allowed
+		Regs->esp += 2;
+		#if TRACE_EMU
+		Log_Debug("VM8086", "Emulated POPF");
+		#endif
+		break;
+	
+	case VM8086_OP_INT_I:	//INT imm8
+		{
+		 int	id;
+		id = *(Uint8*)( Regs->cs*16 +(Regs->eip&0xFFFF));
+		Regs->eip ++;
+		
+		Regs->esp -= 2;	*(Uint16*)( Regs->ss*16 + (Regs->esp&0xFFFF) ) = Regs->cs;
+		Regs->esp -= 2;	*(Uint16*)( Regs->ss*16 + (Regs->esp&0xFFFF) ) = Regs->eip;
+		
+		Regs->cs = *(Uint16*)(4*id + 2);
+		Regs->eip = *(Uint16*)(4*id);
+		#if TRACE_EMU
+		Log_Debug("VM8086", "Emulated INT 0x%x", id);
+		#endif
+		}
+		break;
+	
+	case 0xCF:	//IRET
+		Regs->eip = *(Uint16*)( Regs->ss*16 + (Regs->esp&0xFFFF) );	Regs->esp += 2;
+		Regs->cs  = *(Uint16*)( Regs->ss*16 + (Regs->esp&0xFFFF) );	Regs->esp += 2;
+		#if TRACE_EMU
+		Log_Debug("VM8086", "IRET to %04x:%04x", Regs->cs, Regs->eip);
+		#endif
+		break;
+	
+	default:
+		Log_Error("VM8086", "Error - Unknown opcode %02x caused a GPF at %04x:%04x",
+			opcode, Regs->cs, Regs->eip);
+		// Force an end to the call
+		Regs->cs = VM8086_MAGIC_CS;
+		Regs->eip = VM8086_MAGIC_IP;
+		break;
+	}
+}
+
+/**
+ * \brief Create an instance of the VM8086 Emulator
+ */
+tVM8086 *VM8086_Init(void)
+{
+	tVM8086	*ret;
+	ret = calloc( 1, sizeof(tVM8086) + sizeof(struct sVM8086_InternalData) );
+	ret->Internal = (void*)((tVAddr)ret + sizeof(tVM8086));
+	return ret;
+}
+
+void VM8086_Free(tVM8086 *State)
+{
+	 int	i;
+	for( i = VM8086_PAGES_PER_INST; i --; )
+		MM_UnmapHWPages( State->Internal->AllocatedPages[i].VirtBase, 1);
+	free(State);
+}
+
+void *VM8086_Allocate(tVM8086 *State, int Size, Uint16 *Segment, Uint16 *Offset)
+{
+	 int	i, j, base = 0;
+	 int	nBlocks, rem;
+	Uint32	bmp;
+	
+	Size = (Size + 127) & ~127;
+	nBlocks = Size >> 7;
+	
+	if(Size > 4096)	return NULL;
+	
+	for( i = 0; i < VM8086_PAGES_PER_INST; i++ )
+	{
+		if( State->Internal->AllocatedPages[i].VirtBase == 0 )	continue;
+		bmp = State->Internal->AllocatedPages[i].Bitmap;
+		rem = nBlocks;
+		base = 0;
+		// Scan the bitmap for a free block
+		for( j = 0; j < 32-nBlocks; j++ ) {
+			if( bmp & (1 << j) ) {
+				base = 0;
+				rem = nBlocks;
+			}
+			else {
+				rem --;
+				if(rem == 0)	// Goodie, there's a gap
+				{
+					for( j = 0; j < nBlocks; j++ )
+						State->Internal->AllocatedPages[i].Bitmap |= 1 << (base + j);
+					*Segment = State->Internal->AllocatedPages[i].PhysAddr / 16 + base * 8;
+					*Offset = 0;
+					return (void*)( State->Internal->AllocatedPages[i].VirtBase + base * 128 );
+				}
+			}
+		}
+	}
+	
+	// No pages with free space?, allocate a new one
+	for( i = 0; i < VM8086_PAGES_PER_INST; i++ )
+	{
+		if( State->Internal->AllocatedPages[i].VirtBase == 0 )	break;
+	}
+	// Darn, we can't allocate any more
+	if( i == VM8086_PAGES_PER_INST ) {
+		Log_Warning("VM8086", "Out of pages in %p", State);
+		return NULL;
+	}
+	
+	State->Internal->AllocatedPages[i].VirtBase = MM_AllocDMA(
+		1, 20, &State->Internal->AllocatedPages[i].PhysAddr);
+	State->Internal->AllocatedPages[i].Bitmap = 0;
+		
+	for( j = 0; j < nBlocks; j++ )
+		State->Internal->AllocatedPages[i].Bitmap |= 1 << j;
+	*Segment = State->Internal->AllocatedPages[i].PhysAddr / 16;
+	*Offset = 0;
+	return (void*) State->Internal->AllocatedPages[i].VirtBase;
+}
+
+void *VM8086_GetPointer(tVM8086 *State, Uint16 Segment, Uint16 Offset)
+{
+	return (void*)( KERNEL_BASE + Segment*16 + Offset );
+}
+
+void VM8086_Int(tVM8086 *State, Uint8 Interrupt)
+{
+	State->IP = *(Uint16*)(KERNEL_BASE+4*Interrupt);
+	State->CS = *(Uint16*)(KERNEL_BASE+4*Interrupt+2);
+	
+	LOCK( &glVM8086_Process );
+	
+	gpVM8086_State = State;
+	gVM8086_CallingThread = Threads_GetTID();
+	Threads_WakeTID( gVM8086_WorkerPID );
+	while( gpVM8086_State != NULL )
+		Threads_Sleep();
+	
+	RELEASE( &glVM8086_Process );
+}
diff --git a/Kernel/binary.c b/Kernel/binary.c
index 0cd0bf3c..77309f38 100644
--- a/Kernel/binary.c
+++ b/Kernel/binary.c
@@ -24,7 +24,6 @@ typedef struct sKernelBin {
 
 // === IMPORTS ===
 extern int	Proc_Clone(Uint *Err, Uint Flags);
-extern void	Threads_SetName(char *Name);
 extern char	*Threads_GetName(int ID);
 extern void	Threads_Exit(int, int);
 extern Uint	MM_ClearUser();
diff --git a/Kernel/drv/kb.c b/Kernel/drv/kb.c
index 65d340e9..950f7228 100644
--- a/Kernel/drv/kb.c
+++ b/Kernel/drv/kb.c
@@ -11,6 +11,7 @@
 
 // === CONSTANTS ===
 #define	KB_BUFFER_SIZE	1024
+#define	USE_KERNEL_MAGIC	1
 
 // === IMPORTS ===
 void	Threads_Dump();
@@ -83,6 +84,7 @@ void KB_IRQHandler()
 	//if( inportb(0x64) & 0x20 )	return;
 
 	scancode = inb(0x60); // Read from the keyboard's data buffer
+	Log_Debug("KB", "scancode = %02x");
 
 	//Log("KB_IRQHandler: scancode = 0x%02x", scancode);
 
@@ -169,8 +171,14 @@ void KB_IRQHandler()
 
 	// --- Check for Kernel Magic Combos
 	#if USE_KERNEL_MAGIC
-	if(ch == KEY_LCTRL)	gbKB_MagicState |= 1;
-	if(ch == KEY_LALT)	gbKB_MagicState |= 2;
+	if(ch == KEY_LCTRL) {
+		gbKB_MagicState |= 1;
+		Log_Log("KB", "Kernel Magic LCTRL Down\n");
+	}
+	if(ch == KEY_LALT) {
+		gbKB_MagicState |= 2;
+		Log_Log("KB", "Kernel Magic LALT Down\n");
+	}
 	if(gbKB_MagicState == 3)
 	{
 		switch(ch)
diff --git a/Kernel/include/acess.h b/Kernel/include/acess.h
index efa487ca..7afdb5e1 100644
--- a/Kernel/include/acess.h
+++ b/Kernel/include/acess.h
@@ -224,7 +224,7 @@ extern void	MM_FreeTemp(tVAddr VAddr);
  * \param PAddr	Physical address to map in
  * \param Number	Number of pages to map
  */
-extern tVAddr	MM_MapHWPage(tPAddr PAddr, Uint Number);
+extern tVAddr	MM_MapHWPages(tPAddr PAddr, Uint Number);
 /**
  * \brief Allocates DMA physical memory
  * \param Pages	Number of pages required
@@ -238,7 +238,7 @@ extern tVAddr	MM_AllocDMA(int Pages, int MaxBits, tPAddr *PhysAddr);
  * \param VAddr	Virtual address allocate by ::MM_MapHWPage or ::MM_AllocDMA
  * \param Number	Number of pages to free
  */
-extern void	MM_UnmapHWPage(tVAddr VAddr, Uint Number);
+extern void	MM_UnmapHWPages(tVAddr VAddr, Uint Number);
 /**
  * \brief Allocate a single physical page
  * \return Physical address allocated
@@ -381,12 +381,14 @@ extern int	Proc_Spawn(char *Path);
 extern void	Threads_Exit();
 extern void	Threads_Yield();
 extern void	Threads_Sleep();
+extern void	Threads_WakeTID(tTID Thread);
 extern tPID	Threads_GetPID();
 extern tTID	Threads_GetTID();
 extern tUID	Threads_GetUID();
 extern tGID	Threads_GetGID();
 extern int	SpawnTask(tThreadFunction Function, void *Arg);
 extern Uint	*Threads_GetCfgPtr(int Id);
+extern int	Threads_SetName(char *NewName);
 /**
  * \}
  */
diff --git a/Kernel/include/threads.h b/Kernel/include/threads.h
index 9c5ebe75..b55fe0e0 100644
--- a/Kernel/include/threads.h
+++ b/Kernel/include/threads.h
@@ -19,7 +19,7 @@ typedef struct sThread
 	// --- threads.c's
 	struct sThread	*Next;	//!< Next thread in list
 	tSpinlock	IsLocked;	//!< Thread's spinlock
-	 int	Status;		//!< Thread Status
+	volatile int	Status;		//!< Thread Status
 	 int	RetStatus;	//!< Return Status
 	
 	Uint	TID;	//!< Thread ID
diff --git a/Kernel/threads.c b/Kernel/threads.c
index 075350dd..1ab70296 100644
--- a/Kernel/threads.c
+++ b/Kernel/threads.c
@@ -25,7 +25,7 @@ extern int	Proc_Clone(Uint *Err, Uint Flags);
 
 // === PROTOTYPES ===
 void	Threads_Init();
-void	Threads_SetName(char *NewName);
+ int	Threads_SetName(char *NewName);
 char	*Threads_GetName(int ID);
 void	Threads_SetTickets(int Num);
 tThread	*Threads_CloneTCB(Uint *Err, Uint Flags);
@@ -118,13 +118,14 @@ void Threads_Init()
  * \fn void Threads_SetName(char *NewName)
  * \brief Sets the current thread's name
  */
-void Threads_SetName(char *NewName)
+int Threads_SetName(char *NewName)
 {
 	tThread	*cur = Proc_GetCurThread();
 	if( IsHeap(cur->ThreadName) )
 		free( cur->ThreadName );
 	cur->ThreadName = malloc(strlen(NewName)+1);
 	strcpy(cur->ThreadName, NewName);
+	return 0;
 }
 
 /**
@@ -467,7 +468,7 @@ void Threads_Sleep()
 	tThread *cur = Proc_GetCurThread();
 	tThread *thread;
 	
-	Log("Proc_Sleep: %i going to sleep", cur->TID);
+	Log_Log("Threads", "%i going to sleep", cur->TID);
 	
 	// Acquire Spinlock
 	LOCK( &giThreadListLock );
@@ -506,7 +507,9 @@ void Threads_Sleep()
 	// Release Spinlock
 	RELEASE( &giThreadListLock );
 	
-	while(cur->Status != THREAD_STAT_ACTIVE)	HALT();
+	while(cur->Status == THREAD_STAT_SLEEPING)	HALT();
+	//HALT();
+	Log_Debug("VM8086", "What a lovely sleep");
 }
 
 
@@ -521,11 +524,14 @@ void Threads_Wake(tThread *Thread)
 	{
 	case THREAD_STAT_ACTIVE:	break;
 	case THREAD_STAT_SLEEPING:
+		Log_Log("Threads", "Waking %i (%p) from sleeping", Thread->TID, Thread);
 		LOCK( &giThreadListLock );
 		prev = Threads_int_GetPrev(&gSleepingThreads, Thread);
 		prev->Next = Thread->Next;	// Remove from sleeping queue
 		Thread->Next = gActiveThreads;	// Add to active queue
 		gActiveThreads = Thread;
+		giNumActiveThreads ++;
+		giTotalTickets += Thread->NumTickets;
 		Thread->Status = THREAD_STAT_ACTIVE;
 		RELEASE( &giThreadListLock );
 		break;
@@ -541,6 +547,11 @@ void Threads_Wake(tThread *Thread)
 	}
 }
 
+void Threads_WakeTID(tTID Thread)
+{
+	Threads_Wake( Threads_GetThread(Thread) );
+}
+
 /**
  * \fn void Threads_AddActive(tThread *Thread)
  * \brief Adds a thread to the active queue
@@ -690,10 +701,15 @@ tThread *Threads_GetNextToRun(int CPU)
 	 int	ticket;
 	 int	number;
 	
-	if(giNumActiveThreads == 0)	return NULL;
+	if(giNumActiveThreads == 0) {
+		//Log_Debug("Threads", "CPU%i has no threads to run", CPU);
+		return NULL;
+	}
 	
 	// Special case: 1 thread
 	if(giNumActiveThreads == 1) {
+		//Log_Debug("Threads", "CPU%i has only one thread %i %s",
+		//	CPU, gActiveThreads->TID, gActiveThreads->ThreadName);
 		return gActiveThreads;
 	}
 	
@@ -721,6 +737,9 @@ tThread *Threads_GetNextToRun(int CPU)
 			giTotalTickets, number);
 	}
 	
+	//Log_Debug("Threads", "Switching CPU%i to %p (%s)",
+	//	CPU, thread, thread->ThreadName);
+	
 	return thread;
 }
 
diff --git a/Makefile b/Makefile
index 9023afec..ba53f122 100644
--- a/Makefile
+++ b/Makefile
@@ -11,34 +11,36 @@
 SUBMAKE = $(MAKE) --no-print-directory
 
 MODULES += $(DYNMODS)
-USRLIBS = crt0.o acess.ld ld-acess.so libacess.so libgcc.so libc.so
-USRAPPS = init login CLIShell cat ls mount ifconfig
+USRLIBS := crt0.o acess.ld ld-acess.so libacess.so libgcc.so libc.so
+USRAPPS := init login CLIShell cat ls mount ifconfig
 
-ALL_MODULES = $(addprefix all-,$(MODULES))
-ALL_USRLIBS = $(addprefix all-,$(USRLIBS))
-ALL_USRAPPS = $(addprefix all-,$(USRAPPS))
-CLEAN_MODULES = $(addprefix clean-,$(MODULES))
-CLEAN_USRLIBS = $(addprefix clean-,$(USRLIBS))
-CLEAN_USRAPPS = $(addprefix clean-,$(USRAPPS))
-INSTALL_MODULES = $(addprefix install-,$(MODULES))
-INSTALL_USRLIBS = $(addprefix install-,$(USRLIBS))
-INSTALL_USRAPPS = $(addprefix install-,$(USRAPPS))
-ALLINSTALL_MODULES = $(addprefix allinstall-,$(MODULES))
-ALLINSTALL_USRLIBS = $(addprefix allinstall-,$(USRLIBS))
-ALLINSTALL_USRAPPS = $(addprefix allinstall-,$(USRAPPS))
+#ALL_DYNMODS = $(addprefix all-,$(DYNMODS))
+ALL_MODULES := $(addprefix all-,$(MODULES))
+ALL_USRLIBS := $(addprefix all-,$(USRLIBS))
+ALL_USRAPPS := $(addprefix all-,$(USRAPPS))
+CLEAN_MODULES := $(addprefix clean-,$(MODULES))
+CLEAN_USRLIBS := $(addprefix clean-,$(USRLIBS))
+CLEAN_USRAPPS := $(addprefix clean-,$(USRAPPS))
+INSTALL_MODULES := $(addprefix install-,$(MODULES))
+INSTALL_USRLIBS := $(addprefix install-,$(USRLIBS))
+INSTALL_USRAPPS := $(addprefix install-,$(USRAPPS))
+AI_DYNMODS := $(addprefix allinstall-,$(DYNMODS))
+AI_MODULES := $(addprefix allinstall-,$(MODULES))
+AI_USRLIBS := $(addprefix allinstall-,$(USRLIBS))
+AI_USRAPPS := $(addprefix allinstall-,$(USRAPPS))
 
 .PHONY: all clean install \
 	$(ALL_MODULES) all-Kernel $(ALL_USRLIBS) $(ALL_USRAPPS) \
-	$(ALLINSTALL_MODULES) allinstall-Kernel $(ALLINSTALL_USRLIBS) $(ALLINSTALL_USRAPPS) \
+	$(AI_MODULES) allinstall-Kernel $(AI_USRLIBS) $(AI_USRAPPS) \
 	$(CLEAN_MODULES) clean-Kernel $(CLEAN_USRLIBS) $(CLEAN_USRAPPS) \
 	$(INSTALL_MODULES) install-Kernel $(INSTALL_USRLIBS) $(INSTALL_USRAPPS)
 
-kmode:	$(ALLINSTALL_MODULES) allinstall-Kernel
+kmode:	$(AI_MODULES) $(AI_DYNMODS) allinstall-Kernel
 
-all:	$(ALL_MODULES) all-Kernel $(ALL_USRLIBS) $(ALL_USRAPPS)
-all-install:	$(ALLINSTALL_MODULES) allinstall-Kernel $(ALLINSTALL_USRLIBS) $(ALLINSTALL_USRAPPS)
-clean:	$(CLEAN_MODULES) clean-Kernel $(CLEAN_USRLIBS) $(CLEAN_USRAPPS)
-install:	$(INSTALL_MODULES) install-Kernel $(INSTALL_USRLIBS) $(INSTALL_USRAPPS)
+all:	$(ALL_DYNMODS) $(ALL_MODULES) all-Kernel $(ALL_USRLIBS) $(ALL_USRAPPS)
+all-install:	$(AI_DYNMODS) $(AI_MODULES) allinstall-Kernel $(AI_USRLIBS) $(AI_USRAPPS)
+clean:	$(CLEAN_DYNMODS) $(CLEAN_MODULES) clean-Kernel $(CLEAN_USRLIBS) $(CLEAN_USRAPPS)
+install:	$(INSTALL_DYNMODS) $(INSTALL_MODULES) install-Kernel $(INSTALL_USRLIBS) $(INSTALL_USRAPPS)
 
 # Compile Only
 $(ALL_MODULES): all-%:
@@ -51,13 +53,15 @@ $(ALL_USRAPPS): all-%:
 	@echo === User Application: $* && $(SUBMAKE) all -C Usermode/Applications/$*_src
 
 # Compile & Install
-$(ALLINSTALL_MODULES): allinstall-%:
+#$(AI_DYNMODS): allinstall-%:
+#	@echo === Dynamic Module: $* && STATIC_MODULE=yes $(SUBMAKE) all install -C Modules/$*
+$(AI_MODULES): allinstall-%:
 	@echo === Module: $* && $(SUBMAKE) all install -C Modules/$*
 allinstall-Kernel:
 	@echo === Kernel && $(SUBMAKE) all install -C Kernel
-$(ALLINSTALL_USRLIBS): allinstall-%:
+$(AI_USRLIBS): allinstall-%:
 	@echo === User Library: $* && $(SUBMAKE) all install -C Usermode/Libraries/$*_src
-$(ALLINSTALL_USRAPPS): allinstall-%:
+$(AI_USRAPPS): allinstall-%:
 	@echo === User Application: $* && $(SUBMAKE) all install -C Usermode/Applications/$*_src
 
 # Clean up compilation
diff --git a/Makefile.cfg b/Makefile.cfg
index e4ae222e..51c4802d 100644
--- a/Makefile.cfg
+++ b/Makefile.cfg
@@ -27,11 +27,12 @@ FILESYSTEMS =
 DRIVERS = 
 MODULES  = Storage/ATA Storage/FDD
 MODULES += Network/NE2000
+MODULES += Display/VESA
 #MODULES += Display/BochsGA
 MODULES += Filesystems/Ext2
 MODULES += Filesystems/FAT
 MODULES += IPStack
-DYNMODS = USB Interfaces/UDI
+DYNMODS = USB/Core Interfaces/UDI
 
 #DISTROOT = /mnt/AcessHDD/Acess2
 #DISTROOT = ~/Projects/Acess2/Filesystem
diff --git a/Modules/Display/VESA/Makefile b/Modules/Display/VESA/Makefile
new file mode 100644
index 00000000..d8da2334
--- /dev/null
+++ b/Modules/Display/VESA/Makefile
@@ -0,0 +1,7 @@
+#
+#
+
+OBJ = main.o
+NAME = VESA
+
+-include ../Makefile.tpl
diff --git a/Modules/Display/VESA/common.h b/Modules/Display/VESA/common.h
new file mode 100644
index 00000000..eeaddd56
--- /dev/null
+++ b/Modules/Display/VESA/common.h
@@ -0,0 +1,59 @@
+/**
+ */
+#ifndef _COMMON_H_
+#define _COMMON_H_
+
+// === TYPES ===
+typedef struct sFarPtr
+{
+	Uint16	ofs;
+	Uint16	seg;
+}	tFarPtr;
+
+typedef struct sVesa_Mode
+{
+	Uint16	code;
+	Uint16	width, height;
+	Uint16	pitch, bpp;
+	Uint16	flags;
+	Uint32	fbSize;
+	Uint32	framebuffer;
+}	tVesa_Mode;
+
+typedef struct sVesa_CallModeInfo
+{
+	Uint16	attributes;
+	Uint8	winA,winB;
+	Uint16	granularity;
+	Uint16	winsize;
+	Uint16	segmentA, segmentB;
+	tFarPtr	realFctPtr;
+	Uint16	pitch;	// Bytes per scanline
+
+	Uint16	Xres, Yres;
+	Uint8	Wchar, Ychar, planes, bpp, banks;
+	Uint8	memory_model, bank_size, image_pages;
+	Uint8	reserved0;
+
+	Uint8	red_mask, red_position;
+	Uint8	green_mask, green_position;
+	Uint8	blue_mask, blue_position;
+	Uint8	rsv_mask, rsv_position;
+	Uint8	directcolor_attributes;
+
+	Uint32	physbase;  // Your LFB address ;)
+	Uint32	reserved1;
+	Sint16	reserved2;
+}	tVesa_CallModeInfo;
+
+typedef struct sVesa_CallInfo
+{
+   char		signature[4];		// == "VESA"
+   Uint16	Version;	// == 0x0300 for Vesa 3.0
+   tFarPtr	OEMString;	// isa vbeFarPtr
+   Uint8	Capabilities[4];	
+   tFarPtr	VideoModes;	// isa vbeParPtr
+   Uint16	TotalMemory;	// as # of 64KB blocks
+}	tVesa_CallInfo;
+
+#endif
diff --git a/Modules/Display/VESA/main.c b/Modules/Display/VESA/main.c
new file mode 100644
index 00000000..216fcd1d
--- /dev/null
+++ b/Modules/Display/VESA/main.c
@@ -0,0 +1,286 @@
+/*
+ * AcessOS 1
+ * Video BIOS Extensions (Vesa) Driver
+ */
+#define DEBUG	0
+#define VERSION	0x100
+
+#include <acess.h>
+#include <vfs.h>
+#include <tpl_drv_video.h>
+#include <fs_devfs.h>
+#include <modules.h>
+#include <vm8086.h>
+#include "common.h"
+
+// === CONSTANTS ===
+#define	FLAG_LFB	0x1
+
+// === PROTOTYPES ===
+ int	Vesa_Install(char **Arguments);
+Uint64	Vesa_Read(tVFS_Node *Node, Uint64 Offset, Uint64 Length, void *Buffer);
+Uint64	Vesa_Write(tVFS_Node *Node, Uint64 Offset, Uint64 Length, void *Buffer);
+ int	Vesa_Ioctl(tVFS_Node *Node, int ID, void *Data);
+ int	Vesa_Int_SetMode(int Mode);
+ int	Vesa_Int_FindMode(tVideo_IOCtl_Mode *data);
+ int	Vesa_Int_ModeInfo(tVideo_IOCtl_Mode *data);
+
+// === GLOBALS ===
+MODULE_DEFINE(0, VERSION, Vesa, Vesa_Install, NULL, "PCI", "VM8086", NULL);
+tDevFS_Driver	gVesa_DriverStruct = {
+	NULL, "VESA",
+	{
+	.Read = Vesa_Read,
+	.Write = Vesa_Write,
+	.IOCtl = Vesa_Ioctl
+	}
+};
+tSpinlock	glVesa_Lock;
+tVM8086	*gpVesa_BiosState;
+ int	giVesaCurrentMode = -1;
+ int	giVesaDriverId = -1;
+char	*gVesaFramebuffer = (void*)0xC00A0000;
+tVesa_Mode	*gVesa_Modes;
+ int	giVesaModeCount = 0;
+ int	giVesaPageCount = 0;
+
+//CODE
+int Vesa_Install(char **Arguments)
+{
+	tVesa_CallInfo	*info;
+	tFarPtr	infoPtr;
+	tVesa_CallModeInfo	*modeinfo;
+	tFarPtr	modeinfoPtr;
+	Uint16	*modes;
+	int	i;
+	
+	// Allocate Info Block
+	gpVesa_BiosState = VM8086_Init();
+	info = VM8086_Allocate(gpVesa_BiosState, 512, &infoPtr.seg, &infoPtr.ofs);
+	modeinfo = VM8086_Allocate(gpVesa_BiosState, 512, &modeinfoPtr.seg, &modeinfoPtr.ofs);
+	// Set Requested Version
+	memcpy(info->signature, "VBE2", 4);
+	// Set Registers
+	gpVesa_BiosState->AX = 0x4F00;
+	gpVesa_BiosState->ES = infoPtr.seg;	gpVesa_BiosState->DI = infoPtr.ofs;
+	// Call Interrupt
+	VM8086_Int(gpVesa_BiosState, 0x10);
+	if(gpVesa_BiosState->AX != 0x004F) {
+		Log_Warning("Vesa", "Vesa_Install - VESA/VBE Unsupported (AX = 0x%x)\n", gpVesa_BiosState->AX);
+		return MODULE_ERR_NOTNEEDED;
+	}
+	
+	modes = (Uint16 *) VM8086_GetPointer(gpVesa_BiosState, info->VideoModes.seg, info->VideoModes.ofs);
+	
+	// Read Modes
+	for( giVesaModeCount = 1; modes[giVesaModeCount] != 0xFFFF; giVesaModeCount++ );
+	gVesa_Modes = (tVesa_Mode *)malloc( giVesaModeCount * sizeof(tVesa_Mode) );
+	
+	// Insert Text Mode
+	gVesa_Modes[0].width = 80;
+	gVesa_Modes[0].height = 25;
+	gVesa_Modes[0].bpp = 4;
+	gVesa_Modes[0].code = 0x3;
+	
+	for( i = 1; i < giVesaModeCount; i++ )
+	{
+		gVesa_Modes[i].code = modes[i];
+		// Get Mode info
+		gpVesa_BiosState->AX = 0x4F01;
+		gpVesa_BiosState->CX = gVesa_Modes[i].code;
+		gpVesa_BiosState->ES = modeinfoPtr.seg;
+		gpVesa_BiosState->DI = modeinfoPtr.ofs;
+		VM8086_Int(gpVesa_BiosState, 0x10);
+		
+		// Parse Info
+		gVesa_Modes[i].flags = 0;
+		if ( (modeinfo->attributes & 0x90) == 0x90 )
+		{
+			gVesa_Modes[i].flags |= FLAG_LFB;
+			gVesa_Modes[i].framebuffer = modeinfo->physbase;
+			gVesa_Modes[i].fbSize = modeinfo->Xres*modeinfo->Yres*modeinfo->bpp/8;
+		} else {
+			gVesa_Modes[i].framebuffer = 0;
+			gVesa_Modes[i].fbSize = 0;
+		}
+		
+		gVesa_Modes[i].width = modeinfo->Xres;
+		gVesa_Modes[i].height = modeinfo->Yres;
+		gVesa_Modes[i].bpp = modeinfo->bpp;
+		
+		#if DEBUG
+		LogF(" Vesa_Install: 0x%x - %ix%ix%i\n",
+			gVesa_Modes[i].code, gVesa_Modes[i].width, gVesa_Modes[i].height, gVesa_Modes[i].bpp);
+		#endif
+	}
+	
+	
+	// Install Device
+	giVesaDriverId = DevFS_AddDevice( &gVesa_DriverStruct );
+	if(giVesaDriverId == -1)	return MODULE_ERR_MISC;
+	
+	return MODULE_ERR_OK;
+}
+
+/* Read from the framebuffer
+ */
+Uint64 Vesa_Read(tVFS_Node *Node, Uint64 off, Uint64 len, void *buffer)
+{
+	#if DEBUG >= 2
+	LogF("Vesa_Read: () - NULL\n");
+	#endif
+	return 0;
+}
+
+/**
+ * \brief Write to the framebuffer
+ */
+Uint64 Vesa_Write(tVFS_Node *Node, Uint64 Offset, Uint64 Length, void *Buffer)
+{
+	ENTER("pNode XOffset XLength pBuffer", Node, Offset, Length, Bufffer);
+
+	if(Buffer == NULL) {
+		LEAVE('i', 0);
+		return 0;
+	}
+
+	if( gVesa_Modes[giVesaCurrentMode].framebuffer == 0 ) {
+		Log_Warning("VESA", "Vesa_Write - Non-LFB Modes not yet supported.");
+		LEAVE('i', 0);
+		return 0;
+	}
+	if(gVesa_Modes[giVesaCurrentMode].fbSize < Offset+Length)
+	{
+		Log_Warning("VESA", "Vesa_Write - Framebuffer Overflow");
+		LEAVE('i', 0);
+		return 0;
+	}
+	
+	memcpy(gVesaFramebuffer + Offset, Buffer, Length);
+	
+	LEAVE('X', Length);
+	return Length;
+}
+
+/**
+ * \fn int Vesa_Ioctl(vfs_node *node, int id, void *data)
+ * \brief Handle messages to the device
+ */
+int Vesa_Ioctl(tVFS_Node *Node, int ID, void *Data)
+{
+	switch(ID)
+	{
+	case DRV_IOCTL_TYPE:	return DRV_TYPE_VIDEO;
+	case DRV_IOCTL_IDENT:	memcpy("VESA", Data, 4);	return 1;
+	case DRV_IOCTL_VERSION:	return VERSION;
+	
+	case VIDEO_IOCTL_GETSETMODE:
+		if( !Data )	return giVesaCurrentMode;
+		return Vesa_Int_SetMode( *(int*)Data );
+	
+	case VIDEO_IOCTL_FINDMODE:
+		return Vesa_Int_FindMode((tVideo_IOCtl_Mode*)Data);
+	case VIDEO_IOCTL_MODEINFO:
+		return Vesa_Int_ModeInfo((tVideo_IOCtl_Mode*)Data);
+	
+	case VIDEO_IOCTL_REQLFB:	// Request Linear Framebuffer
+		return 0;
+	}
+	return 0;
+}
+
+int Vesa_Int_SetMode(int mode)
+{	
+	#if DEBUG
+	LogF("Vesa_Int_SetMode: (mode=%i)\n", mode);
+	#endif
+	
+	// Sanity Check values
+	if(mode < 0 || mode > giVesaModeCount)	return -1;
+	
+	// Check for fast return
+	if(mode == giVesaCurrentMode)	return 1;
+	
+	LOCK( &glVesa_Lock );
+	
+	gpVesa_BiosState->AX = 0x4F02;
+	gpVesa_BiosState->BX = gVesa_Modes[mode].code;
+	if(gVesa_Modes[mode].flags & FLAG_LFB) {
+		LogF(" Vesa_Int_SetMode: Using LFB\n");
+		gpVesa_BiosState->BX |= 0x4000;	// Bit 14 - Use LFB
+	}
+	
+	// Set Mode
+	VM8086_Int(gpVesa_BiosState, 0x10);
+	
+	// Map Framebuffer
+	MM_UnmapHWPages((tVAddr)gVesaFramebuffer, giVesaPageCount);
+	giVesaPageCount = (gVesa_Modes[mode].fbSize + 0xFFF) >> 12;
+	gVesaFramebuffer = (void*)MM_MapHWPages(gVesa_Modes[mode].framebuffer, giVesaPageCount);
+	
+	LogF(" Vesa_Int_SetMode: Fb (Phys) = 0x%x\n", gVesa_Modes[mode].framebuffer);
+	LogF(" Vesa_Int_SetMode: Fb (Virt) = 0x%x\n", gVesaFramebuffer);
+	
+	// Record Mode Set
+	giVesaCurrentMode = mode;
+	
+	RELEASE( &glVesa_Lock );
+	
+	return 1;
+}
+
+int Vesa_Int_FindMode(tVideo_IOCtl_Mode *data)
+{
+	 int	i;
+	 int	best = -1, bestFactor = 1000;
+	 int	factor, tmp;
+	#if DEBUG
+	LogF("Vesa_Int_FindMode: (data={width:%i,height:%i,bpp:%i})\n", data->width, data->height, data->bpp);
+	#endif
+	for(i=0;i<giVesaModeCount;i++)
+	{
+		#if DEBUG >= 2
+		LogF("Mode %i (%ix%ix%i), ", i, gVesa_Modes[i].width, gVesa_Modes[i].height, gVesa_Modes[i].bpp);
+		#endif
+	
+		if(gVesa_Modes[i].width == data->width
+		&& gVesa_Modes[i].height == data->height
+		&& gVesa_Modes[i].bpp == data->bpp)
+		{
+			#if DEBUG >= 2
+			LogF("Perfect!\n");
+			#endif
+			best = i;
+			break;
+		}
+		
+		tmp = gVesa_Modes[i].width * gVesa_Modes[i].height * gVesa_Modes[i].bpp;
+		tmp -= data->width * data->height * data->bpp;
+		tmp = tmp < 0 ? -tmp : tmp;
+		factor = tmp * 100 / (data->width * data->height * data->bpp);
+		
+		#if DEBUG >= 2
+		LogF("factor = %i\n", factor);
+		#endif
+		
+		if(factor < bestFactor)
+		{
+			bestFactor = factor;
+			best = i;
+		}
+	}
+	data->id = best;
+	data->width = gVesa_Modes[best].width;
+	data->height = gVesa_Modes[best].height;
+	data->bpp = gVesa_Modes[best].bpp;
+	return best;
+}
+
+int Vesa_Int_ModeInfo(tVideo_IOCtl_Mode *data)
+{
+	if(data->id < 0 || data->id > giVesaModeCount)	return -1;
+	data->width = gVesa_Modes[data->id].width;
+	data->height = gVesa_Modes[data->id].height;
+	data->bpp = gVesa_Modes[data->id].bpp;
+	return 1;
+}
diff --git a/Modules/Makefile.tpl b/Modules/Makefile.tpl
index 4341bdae..9a1b6e82 100644
--- a/Modules/Makefile.tpl
+++ b/Modules/Makefile.tpl
@@ -15,7 +15,7 @@ CPPFLAGS = -I$(ACESSDIR)/Kernel/include -I$(ACESSDIR)/Kernel/arch/$(ARCHDIR)/inc
 CFLAGS = -Wall -Werror -fno-stack-protector $(CPPFLAGS) -O3
 
 OBJ := $(addsuffix .$(ARCH),$(OBJ))
-ifeq ($(CATEGORY),)
+ifneq ($(CATEGORY),)
 	BIN := ../$(CATEGORY)_$(NAME).kmd.$(ARCH)
 else
 	BIN := ../$(NAME).kmd.$(ARCH)
diff --git a/Modules/Network/Makefile.tpl b/Modules/Network/Makefile.tpl
index 80c6d4dd..d5c0b3cc 100644
--- a/Modules/Network/Makefile.tpl
+++ b/Modules/Network/Makefile.tpl
@@ -1 +1,3 @@
+CATEGORY = Network
+
 -include ../../Makefile.tpl
diff --git a/Modules/Storage/ATA/main.c b/Modules/Storage/ATA/main.c
index 9ad8898c..a1010a83 100644
--- a/Modules/Storage/ATA/main.c
+++ b/Modules/Storage/ATA/main.c
@@ -151,7 +151,7 @@ int ATA_SetupIO()
 		if( gATA_BusMasterBase < 0x100000 )
 			gATA_BusMasterBasePtr = (void*)(0xC0000000|gATA_BusMasterBase);
 		else
-			gATA_BusMasterBasePtr = (void*)( MM_MapHWPage( gATA_BusMasterBase, 1 ) + (gATA_BusMasterBase&0xFFF) );
+			gATA_BusMasterBasePtr = (void*)( MM_MapHWPages( gATA_BusMasterBase, 1 ) + (gATA_BusMasterBase&0xFFF) );
 		LOG("gATA_BusMasterBasePtr = %p", gATA_BusMasterBasePtr);
 	}
 	else {
diff --git a/Modules/USB/Core/Makefile b/Modules/USB/Core/Makefile
index b4f400a5..af927313 100644
--- a/Modules/USB/Core/Makefile
+++ b/Modules/USB/Core/Makefile
@@ -2,6 +2,6 @@
 #
 
 OBJ = main.o uhci.o
-NAME = USB
+NAME = Core
 
 -include ../Makefile.tpl