Merge pull request #43 from spicyjpeg/cmake

Even more CMake fixes, submodules, pads example

19 files changed, 271 insertions, 134 deletions

diff --git a/libpsn00b/CMakeLists.txt b/libpsn00b/CMakeLists.txt
index 083208a..7b5f7a5 100644
--- a/libpsn00b/CMakeLists.txt
+++ b/libpsn00b/CMakeLists.txt
@@ -1,7 +1,7 @@
 # libpsn00b build script
 # (C) 2021 spicyjpeg - MPL licensed
 
-cmake_minimum_required(VERSION 3.21)
+cmake_minimum_required(VERSION 3.20)
 
 # ${PROJECT_SOURCE_DIR} is not available until project() is called.
 set(CMAKE_TOOLCHAIN_FILE ${CMAKE_CURRENT_LIST_DIR}/cmake/sdk.cmake)
diff --git a/libpsn00b/cmake/internal_setup.cmake b/libpsn00b/cmake/internal_setup.cmake
index 377afbc..b0c4591 100644
--- a/libpsn00b/cmake/internal_setup.cmake
+++ b/libpsn00b/cmake/internal_setup.cmake
@@ -4,7 +4,7 @@
 # This script is included automatically when using the toolchain file and
 # defines helper functions.
 
-cmake_minimum_required(VERSION 3.21)
+cmake_minimum_required(VERSION 3.20)
 include(GNUInstallDirs)
 
 # IMPORTANT TODO: set a version number
@@ -86,16 +86,14 @@ function(psn00bsdk_add_executable name type)
 	endif()
 
 	add_executable       (${name} ${ARGN})
-	target_link_libraries(${name} psn00bsdk_${_type}_exe)
+	target_link_libraries(${name} psn00bsdk_${_type}_exe ${PSN00BSDK_LIBRARIES})
 	set_target_properties(${name} PROPERTIES PREFIX "" SUFFIX ".elf")
 	target_link_options  (${name} PRIVATE -T${PSN00BSDK_LDSCRIPTS}/exe.ld)
 
 	target_include_directories(${name} PRIVATE ${PSN00BSDK_INCLUDE})
 
 	# Add post-build steps to generate the .exe and symbol map once the
-	# executable is built. CMake 3.21 added support for target-dependent
-	# generator expressions (catchy name lol) in add_custom_command(), so I'm
-	# making heavy use of those here.
+	# executable is built.
 	add_custom_command(
 		TARGET     ${name} POST_BUILD
 		COMMAND    ${ELF2X} -q ${name}.elf ${name}${PSN00BSDK_EXECUTABLE_SUFFIX}
diff --git a/libpsn00b/cmake/sdk.cmake b/libpsn00b/cmake/sdk.cmake
index 4c2f330..ae23a06 100644
--- a/libpsn00b/cmake/sdk.cmake
+++ b/libpsn00b/cmake/sdk.cmake
@@ -1,7 +1,7 @@
 # PSn00bSDK toolchain setup file for CMake
 # (C) 2021 spicyjpeg - MPL licensed
 
-cmake_minimum_required(VERSION 3.21)
+cmake_minimum_required(VERSION 3.20)
 
 set(
 	PSN00BSDK_TC $ENV{PSN00BSDK_TC}
diff --git a/libpsn00b/cmake/virtual_targets.cmake b/libpsn00b/cmake/virtual_targets.cmake
index df1df79..9afcebd 100644
--- a/libpsn00b/cmake/virtual_targets.cmake
+++ b/libpsn00b/cmake/virtual_targets.cmake
@@ -72,7 +72,7 @@ set(_cflags   -mno-abicalls -mgpopt -mno-extern-sdata)
 set(_cxxflags)
 set(_ldflags  -G8 -static)
 
-_add_interface_target(psn00bsdk_static_exe psn00bsdk_common ${PSN00BSDK_LIBRARIES})
+_add_interface_target(psn00bsdk_static_exe psn00bsdk_common)
 
 # Options for executables with support for dynamic linking:
 # - Position-independent code disabled
@@ -83,7 +83,7 @@ set(_cflags   -mno-abicalls -mno-gpopt)
 set(_cxxflags)
 set(_ldflags  -G0 -static)
 
-_add_interface_target(psn00bsdk_dynamic_exe psn00bsdk_common ${PSN00BSDK_LIBRARIES})
+_add_interface_target(psn00bsdk_dynamic_exe psn00bsdk_common)
 
 # Options for static libraries:
 # - GP-relative addressing disabled
diff --git a/libpsn00b/include/malloc.h b/libpsn00b/include/malloc.h
index d94823f..75c3711 100644
--- a/libpsn00b/include/malloc.h
+++ b/libpsn00b/include/malloc.h
@@ -1,18 +1,8 @@
 #ifndef _MALLOC_H
 #define _MALLOC_H
 
-#ifdef __cplusplus
-extern "C" {
-#endif
+#warning "<malloc.h> is deprecated, include <stdlib.h> instead"
 
-unsigned int *GetBSSend();
-void InitHeap(unsigned int *addr, int size);
-int SetHeapSize(int size);
-void *malloc(int size);
-void free(void *ptr);
-
-#ifdef __cplusplus
-}
-#endif
+#include <stdlib.h>
 
 #endif // _MALLOC_H
\ No newline at end of file
diff --git a/libpsn00b/include/psxapi.h b/libpsn00b/include/psxapi.h
index 9e92568..ec0dfea 100644
--- a/libpsn00b/include/psxapi.h
+++ b/libpsn00b/include/psxapi.h
@@ -32,6 +32,35 @@
 #define RCntMdFR		0x0000
 #define RCntMdGATE		0x0010
 
+typedef struct {	// Thread control block
+	int						status;
+	int						mode;
+	union {
+		unsigned int		reg[37];
+		struct {
+			unsigned int	zero, at;
+			unsigned int	v0, v1;
+			unsigned int	a0, a1, a2, a3;
+			unsigned int	t0, t1, t2, t3, t4, t5, t6, t7;
+			unsigned int	s0, s1, s2, s3, s4, s5, s6, s7;
+			unsigned int	t8, t9;
+			unsigned int	k0, k1;
+			unsigned int	gp, sp, fp, ra;
+
+			unsigned int	cop0r14;
+			unsigned int	hi;
+			unsigned int	lo;
+			unsigned int	cop0r12;
+			unsigned int	cop0r13;
+		};
+	};
+	int						_reserved[9];
+} TCB;
+
+typedef struct {	// Process control block
+	TCB *thread;
+} PCB;
+
 typedef struct {					// Device control block
 	char	*name;
 	int		flags;
@@ -182,6 +211,9 @@ void ChangeClearRCnt(int t, int m);
 int Exec(struct EXEC *exec, int argc, char **argv);
 void FlushCache(void);
 
+// Misc functions
+int GetSystemInfo(int index);
+
 void _boot(void);
 
 #ifdef __cplusplus
diff --git a/libpsn00b/include/psxpad.h b/libpsn00b/include/psxpad.h
index 01aff06..d152896 100644
--- a/libpsn00b/include/psxpad.h
+++ b/libpsn00b/include/psxpad.h
@@ -3,10 +3,12 @@
  * 2019 Lameguy64 / Meido-Tek Productions
  *
  * Currently only provides a bunch of definitions and a few structs but no
- * handling functions yet. Use the code in pad.s in one of the sample
- * programs for the meantime instead.
+ * handling functions yet. See the io/pads example for a simple manual pollling
+ * implementation (with support for DualShock 2 controllers).
  *
  * Work in progress, subject to change significantly in future releases.
+ *
+ * Reference: https://gist.github.com/scanlime/5042071
  */
  
 #ifndef _PSXPAD_H
@@ -50,58 +52,153 @@
 #define GCON_TRIGGER	8192
 #define GCON_B			16384
 
-// Struct for digital, joystick, dual analog and Dualshock controllers
-typedef struct {
-	unsigned char	stat;		// Status
-	unsigned char	len:4;		// Data length (in halfwords)
-	unsigned char	type:4;		// Device type:
-								//  0x4 - digital pad 
-								//  0x5 - analog joystick 
-								//  0x7 - dual analog & Dualshock 
-	unsigned short	btn;		// Button states
-	unsigned char	rs_x,rs_y;	// Right stick coordinates
-	unsigned char	ls_x,ls_y;	// Left stick coordinates
+typedef enum {
+	PAD_ID_MOUSE		= 0x1, // Sony PS1 mouse
+	PAD_ID_NEGCON		= 0x2, // Namco neGcon
+	PAD_ID_IRQ10_GUN	= 0x3, // "Konami" lightgun without composite video passthrough
+	PAD_ID_DIGITAL		= 0x4, // Digital pad or Dual Analog/DualShock in digital mode
+	PAD_ID_ANALOG_STICK	= 0x5, // Flight stick or Dual Analog in green LED mode
+	PAD_ID_GUNCON		= 0x6, // Namco Guncon (lightgun with composite video passthrough)
+	PAD_ID_ANALOG		= 0x7, // Dual Analog/DualShock in analog (red LED) mode
+	PAD_ID_MULTITAP		= 0x8, // Multitap adapter (when tap_mode == 1)
+	PAD_ID_JOGCON		= 0xe, // Namco Jogcon
+	PAD_ID_CONFIG_MODE	= 0xf, // Dual Analog/DualShock in config mode (if len == 0x3)
+	PAD_ID_NONE			= 0xf  // No pad connected (if len == 0xf)
+} PAD_TYPEID;
+
+// Controller command definitions
+typedef enum {
+	PAD_CMD_INIT_PRESSURE	= '@', // Initialize DS2 button pressure sensors (in config mode)
+	PAD_CMD_READ			= 'B', // Read pad state and set rumble
+	PAD_CMD_CONFIG_MODE		= 'C', // Toggle DualShock configuration mode
+	PAD_CMD_SET_ANALOG		= 'D', // Set analog mode/LED state (in config mode)
+	PAD_CMD_GET_ANALOG		= 'E', // Get analog mode/LED state (in config mode)
+	PAD_CMD_REQUEST_CONFIG	= 'M', // Configure request/unlock vibration (in config mode)
+	PAD_CMD_RESPONSE_CONFIG	= 'O'  // Configure response/unlock DS2 pressure (in config mode)
+} PAD_COMMAND;
+
+// Memory card command/response definitions
+typedef enum {
+	MCD_CMD_READ		= 'R', // Read sector
+	MCD_CMD_IDENTIFY	= 'S', // Retrieve ID and card size information
+	MCD_CMD_WRITE		= 'W'  // Write sector
+} MCD_COMMAND;
+
+typedef enum {
+	MCD_STAT_OK				= 'G',
+	MCD_STAT_BAD_CHECKSUM	= 'N',
+	MCD_STAT_BAD_SECTOR		= 0xff
+} MCD_STATUS;
+
+#define MCD_CMD_READ_LEN		139
+#define MCD_CMD_IDENTIFY_LEN	9
+#define MCD_CMD_WRITE_LEN		137
+
+// Memory card status flags
+#define MCD_FLAG_WRITE_ERROR	4	// Last write command failed
+#define MCD_FLAG_NOT_WRITTEN	8	// No writes have been issued yet
+#define MCD_FLAG_UNKNOWN		16	// Might be set on third-party cards
+
+// Struct for data returned by controllers
+typedef struct _PADTYPE {
+	union {									// Header:
+		struct __attribute__((packed)) {	//  When parsing data returned by BIOS:
+			unsigned char		stat;		//   Status
+			unsigned char		len:4;		//   Payload length / 2, 0 for multitap
+			unsigned char		type:4;		//   Device type (PAD_TYPEID)
+		};
+		struct __attribute__((packed)) {	//  When parsing raw controller response:
+			unsigned char		len:4;		//   Payload length / 2, 0 for multitap
+			unsigned char		type:4;		//   Device type (PAD_TYPEID)
+			unsigned char		prefix;		//   Must be 0x5a
+		} raw;
+	};
+	struct {								// Payload:
+		unsigned short			btn;		//  Button states
+		union {
+			struct {						//  Analog controller:
+				unsigned char	rs_x,rs_y;	//   Right stick coordinates
+				unsigned char	ls_x,ls_y;	//   Left stick coordinates
+				unsigned char	press[12];	//   Button pressure (DualShock 2 only)
+			};
+			struct {						//  Mouse:
+				char			x_mov;		//   X movement of mouse
+				char			y_mov;		//   Y movement of mouse
+			};
+			struct {						//  neGcon:
+				unsigned char	twist;		//   Controller twist
+				unsigned char	btn_i;		//   I button value
+				unsigned char	btn_ii;		//   II button value
+				unsigned char	trg_l;		//   L trigger value
+			};
+			struct {						//  Jogcon:
+				unsigned short	jog_rot;	//   Jog rotation
+			};
+			struct {						//  Guncon:
+				unsigned short	gun_x;		//   Gun X position in dotclocks
+				unsigned short	gun_y;		//   Gun Y position in scanlines
+			};
+		};
+	};
 } PADTYPE;
 
-// Struct for a mouse controller
-typedef struct {
-	unsigned char	stat;
-	unsigned char	len:4;
-	unsigned char	type:4;		// Device type (0x1)
-	unsigned short	btn;
-	char			x_mov;		// X movement of mouse
-	char			y_mov;		// Y movement of mouse
-} MOUSETYPE;
-
-// Struct for a neGcon controller (for Namco neGcon)
-typedef struct {
-	unsigned char	stat;
-	unsigned char	len:4;
-	unsigned char	type:4;		// (0x2)
-	unsigned short	btn;
-    unsigned char	twist;		// Controller twist
-	unsigned char	btn_i;		// I button value
-	unsigned char	btn_ii;		// II button value
-	unsigned char	trg_l;		// L trigger value
-} NCONTYPE;
-
-// Struct for a Jogcon controller (for Namco Jogcon)
-typedef struct {
-	unsigned char	stat;
-	unsigned char	len:4;
-	unsigned char	type:4;		// (0xE)
-	unsigned short	btn;
-    unsigned short	jog_rot;	// Jog rotation
-} JCONTYPE;
-
-// Struct for a Gun-Con controller (for Namco Gun-Con)
-typedef struct {
-	unsigned char	status;
-	unsigned char	len:4;
-	unsigned char	type:4;		// (0x6)
-	unsigned short	btn;
-	unsigned short	gun_x;		// Gun X position in dotclocks
-	unsigned short	gun_y;		// Gun Y position in scanlines
-} GCONTYPE;
+typedef struct _MCDRESPONSE {
+	unsigned char	flags;		// Status flags
+	unsigned char	type1;		// Must be 0x5a
+	unsigned char	type2;		// Must be 0x5d
+	union {
+		struct {						// MCD_CMD_READ response:
+			unsigned char	dummy[2];
+			unsigned char	ack1;		//  Must be 0x5c
+			unsigned char	ack2;		//  Must be 0x5d
+			unsigned char	lba_h;
+			unsigned char	lba_l;
+			unsigned char	data[128];
+			unsigned char	checksum;	//  = lba_h ^ lba_l ^ data
+			unsigned char	stat;		//  Status (MCD_STATUS)
+		} read;
+		struct {						// MCD_CMD_IDENTIFY response:
+			unsigned char	ack1;		//  Must be 0x5c
+			unsigned char	ack2;		//  Must be 0x5d
+			unsigned char	size_h;		//  Card capacity bits 8-15 (0x04 = 128KB)
+			unsigned char	size_l;		//  Card capacity bits 0-7 (0x00 = 128KB)
+			unsigned char	blksize_h;	//  Sector size bits 8-15 (must be 0x00)
+			unsigned char	blksize_l;	//  Sector size bits 0-7 (must be 0x80)
+		} identify;
+		struct {						// MCD_CMD_WRITE response:
+			unsigned char	dummy[131];
+			unsigned char	ack1;		//  Must be 0x5c
+			unsigned char	ack2;		//  Must be 0x5d
+			unsigned char	stat;		//  Status (MCD_STATUS)
+		} write;
+	};
+} MCDRESPONSE;
+
+//typedef PADTYPE MOUSETYPE;
+//typedef PADTYPE NCONTYPE;
+//typedef PADTYPE JCONTYPE;
+//typedef PADTYPE GCONTYPE;
+
+// Structs for raw controller request
+typedef struct _PADREQUEST {
+	unsigned char	addr;		// Must be 0x01 (or 02/03/04 for multitap pads)
+	unsigned char	cmd;		// Command (PAD_COMMAND)
+	unsigned char	tap_mode;	// 0x01 to enable multitap response
+	unsigned char	motor_r;	// Right motor control (on/off)
+	unsigned char	motor_l;	// Left motor control (PWM)
+	unsigned char	dummy[4];
+} PADREQUEST;
+
+// Structs for raw memory card request
+typedef struct _MCDREQUEST {
+	unsigned char	addr;		// Must be 0x81 (or 02/03/04 for multitap cards)
+	unsigned char	cmd;		// Command (MCD_COMMAND)
+	unsigned char	dummy[2];
+	unsigned char	lba_h;		// Sector address bits 8-15 (dummy for CMD_IDENTIFY)
+	unsigned char	lba_l;		// Sector address bits 0-7 (dummy for CMD_IDENTIFY)
+	unsigned char	data[128];	// Sector payload (dummy for CMD_READ/CMD_IDENTIFY)
+	unsigned char	checksum;	// = lba_h ^ lba_l ^ data (CMD_WRITE only)
+	unsigned char	dummy2[3];
+} MCDREQUEST;
 
 #endif
\ No newline at end of file
diff --git a/libpsn00b/include/stdint.h b/libpsn00b/include/stdint.h
new file mode 100644
index 0000000..83acb00
--- /dev/null
+++ b/libpsn00b/include/stdint.h
@@ -0,0 +1,16 @@
+#ifndef _STDINT_H
+#define _STDINT_H
+
+typedef unsigned int		size_t;
+
+typedef char				int8_t;
+typedef short				int16_t;
+typedef int					int32_t;
+typedef long long			int64_t;
+
+typedef unsigned char		uint8_t;
+typedef unsigned short		uint16_t;
+typedef unsigned int		uint32_t;
+typedef unsigned long long	uint64_t;
+
+#endif // _STDINT_H
\ No newline at end of file
diff --git a/libpsn00b/include/stdlib.h b/libpsn00b/include/stdlib.h
index 474eba6..de3ab47 100644
--- a/libpsn00b/include/stdlib.h
+++ b/libpsn00b/include/stdlib.h
@@ -19,34 +19,16 @@ extern long atol(char *s);
 extern char atob(char *s); // Is this right?
 */
 
-// Random number functions (not yet implemented)
-
-/*
-int rand();
-void srand(unsigned int seed);
-*/
-
 // Quick sort (not yet implemented)
 
 //void qsort(void *base , int nel , int width , int (*cmp)(const void *,const void *));
 
-// Memory allocation functions (not yet implemented, avoid using BIOS as they are reportedly buggy)
-
-/*
-#warning "malloc() family of functions NEEDS MORE TESTING"
-
-void *malloc(int size);
-void free(void *buf);
-void *calloc(int number, int size);
-void *realloc(void *buf , int n);
-*/
-
 #ifdef __cplusplus
 extern "C" {
 #endif
 
 extern int __argc;
-extern char __argv[];
+extern const char **__argv;
 
 int rand();
 void srand(unsigned long seed);
@@ -64,6 +46,14 @@ long atol(const char *s);
 double strtod(const char *nptr, char **endptr);
 float strtof(const char *nptr, char **endptr);
 
+// Memory allocation functions
+unsigned int *GetBSSend();
+void InitHeap(unsigned int *addr, int size);
+int SetHeapSize(int size);
+void *malloc(int size);
+void *calloc(int number, int size);
+void free(void *ptr);
+
 #ifdef __cplusplus
 }
 #endif
diff --git a/libpsn00b/include/sys/types.h b/libpsn00b/include/sys/types.h
index aee197e..da43590 100644
--- a/libpsn00b/include/sys/types.h
+++ b/libpsn00b/include/sys/types.h
@@ -1,21 +1,13 @@
 #ifndef _TYPES_H
 #define _TYPES_H
 
+//#warning "<sys/types.h> and u_* types are deprecated, include <stdint.h> instead"
+
+//#include <stdint.h>
+
 typedef unsigned char		u_char;
 typedef unsigned short		u_short;
 typedef unsigned int		u_int;
 typedef unsigned long		u_long;
 
-typedef unsigned int		size_t;
-
-typedef char				int8_t;
-typedef short				int16_t;
-typedef int					int32_t;
-typedef long long			int64_t;
-
-typedef unsigned char		uint8_t;
-typedef unsigned short		uint16_t;
-typedef unsigned int		uint32_t;
-typedef unsigned long long	uint64_t;
-
 #endif // _TYPES_H
\ No newline at end of file
diff --git a/libpsn00b/libc/c++-support.cxx b/libpsn00b/libc/c++-support.cxx
index fcf7cfc..d169fdb 100644
--- a/libpsn00b/libc/c++-support.cxx
+++ b/libpsn00b/libc/c++-support.cxx
@@ -1,7 +1,6 @@
 #include <assert.h>
-#include <sys/types.h>
+#include <stdint.h>
 #include <stdlib.h>
-#include <malloc.h>
 
 extern "C"
 
diff --git a/libpsn00b/libc/start.c b/libpsn00b/libc/start.c
index c5872df..f190794 100644
--- a/libpsn00b/libc/start.c
+++ b/libpsn00b/libc/start.c
@@ -3,9 +3,9 @@
  * (C) 2021 Lameguy64, spicyjpeg - MPL licensed
  */
 
-#include <sys/types.h>
+#include <stdint.h>
 #include <string.h>
-#include <malloc.h>
+#include <stdlib.h>
 
 #define KERNEL_ARG_STRING   ((const char *)   0x80000180)
 #define KERNEL_RETURN_VALUE ((volatile int *) 0x8000dffc)
@@ -47,13 +47,7 @@ static void _parse_kernel_args() {
 	}
 }
 
-/* Main */
-
-// How much space at the end of RAM to leave for the stack (instead of using it
-// as heap). By default 128 KB are reserved for the stack, but this constant
-// can be overridden in main.c (or anywhere else) simply by redeclaring it
-// without the weak attribute.
-const int32_t __attribute__((weak)) STACK_MAX_SIZE = 0x20000;
+/* Heap initialization */
 
 // These are defined by the linker script. Note that these are *NOT* pointers,
 // they are virtual symbols whose location matches their value. The simplest
@@ -63,6 +57,20 @@ extern uint8_t __bss_start[];
 extern uint8_t _end[];
 //extern uint8_t _gp[];
 
+// This function should not be called manually in most cases. It might be
+// useful though to change the stack size and/or reinitialize the heap on
+// systems that have more than 2 MB of RAM (e.g. emulators, devkits, PS1-based
+// arcade boards).
+void _mem_init(size_t ram_size, size_t stack_max_size) {
+	void   *exe_end = _end + 4;
+	size_t exe_size = (size_t) exe_end - (size_t) __text_start;
+	size_t ram_used = (0x10000 + exe_size + stack_max_size) & 0xfffffffc;
+
+	InitHeap(exe_end, ram_size - ram_used);
+}
+
+/* Main */
+
 extern void (*__CTOR_LIST__[])(void);
 extern void (*__DTOR_LIST__[])(void);
 
@@ -73,24 +81,16 @@ extern int32_t main(int32_t argc, const char* argv[]);
 // to overwrite the arg strings in kernel RAM.
 void _start(int32_t override_argc, const char **override_argv) {
 	__asm__ volatile("la $gp, _gp;");
-	
-	// Mem init assembly function (clears BSS and InitHeap to _end which is
-	// not possible to do purely in C because the linker complains about
-	// relocation truncated to fit: R_MIPS_GPREL16 against `_end'
-	// Workaround is to do it in assembly because la pseudo-op doesn't use
-	// stupid gp relative addressing
-	//_mem_init();
 
 	// Clear BSS 4 bytes at a time. BSS is always aligned to 4 bytes by the
 	// linker script.
 	for (uint32_t *i = (uint32_t *) __bss_start; i < (uint32_t *) _end; i++)
 		*i = 0;
 
-	// Calculate how much RAM is available after the loaded executable and
-	// initialize heap accordingly.
-	void         *exe_end = _end + 4;
-	unsigned int exe_size = (unsigned int) exe_end - (unsigned int) __text_start;
-	InitHeap(exe_end, 0x200000 - (exe_size + STACK_MAX_SIZE));
+	// Initialize the heap, assuming 2 MB of RAM and reserving 128 KB for the
+	// stack. Note that _mem_init() can be called again in main() to change
+	// these values.
+	_mem_init(0x200000, 0x20000);
 
 	if (override_argv) {
 		__argc = override_argc;
diff --git a/libpsn00b/libc/string.c b/libpsn00b/libc/string.c
index e11ed67..445b227 100644
--- a/libpsn00b/libc/string.c
+++ b/libpsn00b/libc/string.c
@@ -6,7 +6,7 @@
 
 #include <stdio.h>
 #include <string.h>
-#include <malloc.h>
+#include <stdlib.h>
 
 int tolower(int chr)
 {
diff --git a/libpsn00b/libc/vsprintf.c b/libpsn00b/libc/vsprintf.c
index 361b24e..0a99dcc 100644
--- a/libpsn00b/libc/vsprintf.c
+++ b/libpsn00b/libc/vsprintf.c
@@ -58,6 +58,15 @@
 	pad_quantity = (pad_quantity - 1) - last; \
 	if(pad_quantity < 0) pad_quantity = 0;
 
+#define calculate_real_padding_bin() \
+	last = 0; \
+	for (x = 0; x < 32; x++) \
+		if((arg >> x) & 1) \
+			last = x; \
+	\
+	pad_quantity = (pad_quantity - 1) - last; \
+	if(pad_quantity < 0) pad_quantity = 0;
+
 #define write_padding() \
 	if(!(flags & SPRINTF_NEGFIELD_FLAG)) \
 		for(x = 0; x < pad_quantity; x++) \
@@ -703,6 +712,9 @@ int vsnprintf(char *string, unsigned int size, const char *fmt, va_list ap)
 					//else
 					//	arg = va_arg(ap, unsigned long long);
 				
+					calculate_real_padding_bin();
+					write_padding();
+
 					for(x=31;x>=0;x--)
 					{
 						y = (arg >> x);
@@ -715,6 +727,8 @@ int vsnprintf(char *string, unsigned int size, const char *fmt, va_list ap)
 							put_in_string(string, ssz, y + '0', string_pos++);	
 					}
 				
+					write_neg_padding();
+				
 					directive_coming = 0;
 				break;
 
diff --git a/libpsn00b/lzp/compress.c b/libpsn00b/lzp/compress.c
index 5969dd6..9cfc64d 100644
--- a/libpsn00b/lzp/compress.c
+++ b/libpsn00b/lzp/compress.c
@@ -3,7 +3,6 @@
 #include <string.h>
 #if LZP_USE_MALLOC == TRUE
 #include <stdlib.h>
-#include <malloc.h>
 #endif
 
 #include "lzconfig.h"
diff --git a/libpsn00b/psxapi/sys/getsysteminfo.s b/libpsn00b/psxapi/sys/getsysteminfo.s
new file mode 100644
index 0000000..60c1d43
--- /dev/null
+++ b/libpsn00b/psxapi/sys/getsysteminfo.s
@@ -0,0 +1,10 @@
+.set noreorder
+
+.section .text
+
+.global GetSystemInfo
+.type GetSystemInfo, @function
+GetSystemInfo:
+	addiu	$t2, $0, 0xa0
+	jr		$t2
+	addiu	$t1, $0, 0xb4
\ No newline at end of file
diff --git a/libpsn00b/psxcd/isofs.c b/libpsn00b/psxcd/isofs.c
index dc0c5ca..40a40af 100644
--- a/libpsn00b/psxcd/isofs.c
+++ b/libpsn00b/psxcd/isofs.c
@@ -1,6 +1,6 @@
 #include <sys/types.h>
 #include <stdio.h>
-#include <malloc.h>
+#include <stdlib.h>
 #include <string.h>
 #include <psxgpu.h>
 #include <psxsio.h>
diff --git a/libpsn00b/psxetc/dl.c b/libpsn00b/psxetc/dl.c
index 586e7e1..e43374f 100644
--- a/libpsn00b/psxetc/dl.c
+++ b/libpsn00b/psxetc/dl.c
@@ -23,9 +23,9 @@
  *   of entries
  */
 
-#include <sys/types.h>
+#include <stdint.h>
 #include <stdio.h>
-#include <malloc.h>
+#include <stdlib.h>
 #include <ctype.h>
 #include <elf.h>
 #include <dlfcn.h>
diff --git a/libpsn00b/psxgpu/font.c b/libpsn00b/psxgpu/font.c
index 7d0dd89..4c715a9 100644
--- a/libpsn00b/psxgpu/font.c
+++ b/libpsn00b/psxgpu/font.c
@@ -1,7 +1,7 @@
 #include <sys/types.h>
 #include <stdio.h>
 #include <string.h>
-#include <malloc.h>
+#include <stdlib.h>
 #include <ctype.h>
 #include <psxgpu.h>