diff --git a/README.md b/README.md
index 65e6796..da2df92 100644
--- a/README.md
+++ b/README.md
@@ -1,3 +1,13 @@
 # libMicrofx
 
-Make very small add-ins.
\ No newline at end of file
+Make very small add-ins.
+
+With this library you can easly make very small add-ins, but they are not as fast as add-ins made using gint, so you should use gint to write more complex add-ins. This library only provides support of the fx98xx series of CASIO monochrome calculators that support add-ins.
+
+## Getting started
+
+An example add-in is in template. Start your project with this folder. Requires sh-elf-* of the fxsdk.
+
+The library is in microfx_src. If the library was updated, update you project by replacing lib with a new version compiled by typing `make` in microfx_src.
+
+You can read the header files in lib/include/microfx to see the available functions.
\ No newline at end of file
diff --git a/microfx_src/Makefile b/microfx_src/Makefile
new file mode 100644
index 0000000..94387ab
--- /dev/null
+++ b/microfx_src/Makefile
@@ -0,0 +1,27 @@
+CC = sh-elf-gcc
+AR = sh-elf-ar
+
+OUT = libMicrofx.a
+OUT_DIR = lib
+
+SRC = src/start.c src/syscall.S src/microfx.c
+OBJ = $(SRC:src/%=build/%.o)
+
+BUILD = build
+
+all: $(OBJ) | $(OUT_DIR)/
+	$(AR) rsv $(OUT_DIR)/$(OUT) $(OBJ)
+	cp --recursive include $(OUT_DIR)/
+	cp src/fx98xx.ld $(OUT_DIR)/
+
+$(BUILD)/%.o: src/% | $(BUILD)/
+	$(CC) -c $< -o $@ -Os
+
+.PRECIOUS: %/
+
+%/:
+	@ mkdir -p $@
+
+clean: $(BUILD)/ | $(OUT_DIR)/
+	rm $(OUT_DIR) --recursive
+	rm $(BUILD) --recursive
diff --git a/microfx_src/include/microfx/config.h.in b/microfx_src/include/microfx/config.h.in
new file mode 100644
index 0000000..a660533
--- /dev/null
+++ b/microfx_src/include/microfx/config.h.in
@@ -0,0 +1,6 @@
+#ifndef MICROFX_CONFIG_H
+#define MICROFX_CONFIG_H
+
+#define EX_VERSION "@libMicrofx_VERSION@"
+
+#endif
diff --git a/microfx_src/include/microfx/keycodes.h b/microfx_src/include/microfx/keycodes.h
new file mode 100644
index 0000000..b7182cd
--- /dev/null
+++ b/microfx_src/include/microfx/keycodes.h
@@ -0,0 +1,6 @@
+#ifndef KEYCODES_H
+#define KEYCODES_H
+
+#define KCEXIT 47
+
+#endif
diff --git a/microfx_src/include/microfx/microfx.h b/microfx_src/include/microfx/microfx.h
new file mode 100644
index 0000000..87b0a4e
--- /dev/null
+++ b/microfx_src/include/microfx/microfx.h
@@ -0,0 +1,105 @@
+#ifndef MICROFX_H
+#define MICROFX_H
+
+#include "keycodes.h"
+
+/******* DISPLAY *******/
+
+enum {SWHITE = 0, SBLACK};
+
+/* void sclear(void);
+
+Clears the VRAM in white.
+*/
+
+void sclear(void);
+
+/* void supdate(void);
+
+Put the VRAM on the screen.
+*/
+
+void supdate(void);
+
+/* void srect(int x1, int y1, int x2, int y2);
+
+Draws a white rectangle with a black border of one pixel from (x1, y1) to (x2, y2)
+in the VRAM.
+*/
+
+void srect(int x1, int y1, int x2, int y2);
+
+/* void spixel(int x, int y, int color);
+
+Set the pixel at (x, y) in the color color in the VRAM.
+The available colors are SWHITE or SBLACK.
+*/
+
+void spixel(int x, int y, int color);
+
+/* void stext(int x, int y, char *text);
+
+Puts the text text at (x, y) on the screen using casio default font.
+*/
+
+void stext(int x, int y, char *text);
+
+/* void slocate(int x, int y, char *text);
+
+Works like the Locate function of CASIO Basic.
+*/
+
+void slocate(int x, int y, char *text);
+
+/******* KEYBOARD *******/
+
+enum {KFAST = 0, KLONG};
+
+/* int kisdown(void);
+
+Returns a positive int if a key is down.
+Returns 0 if there is no key down.
+*/
+int kisdown(void);
+
+/* int kcheck(int key, int type);
+
+/!\ Not working /!\
+
+Checks if the key key is down.
+
+int key if 0x(1 byte for the column)(1 byte for the row).
+Based on the syscalls 0x24B/0x24C.
+
+Type is KFAST or KLONG.
+KFAST : Syscall 0x24B is used.
+KLONG : Syscall 0x24C is used.
+*/
+int kcheck(int key, int type);
+
+/* int kgetkey(void);
+
+Works like the Getkey function of CASIO Basic.
+Returns the pressed key.
+*/
+int kgetkey(void);
+
+/******* TOOLS *******/
+
+/* void itoa(int n, char *buffer);
+
+Put a string of the int n in buffer.
+*/
+
+void itoa(int n, char *buffer);
+
+/******* TIME *******/
+
+/* void tsleep_ms(int ms);
+
+Wait ms miliseconds.
+*/
+void tsleep_ms(int ms);
+
+#endif
+
diff --git a/microfx_src/src/fx98xx.ld b/microfx_src/src/fx98xx.ld
new file mode 100644
index 0000000..8a5279b
--- /dev/null
+++ b/microfx_src/src/fx98xx.ld
@@ -0,0 +1,33 @@
+ENTRY(_start)
+
+MEMORY
+{
+	rom (rx)  : ORIGIN = 0x00300200, LENGTH = 512K
+	ram (rw) : ORIGIN = 0x08100200, LENGTH = 20K
+}
+
+SECTIONS
+{
+	.text : {
+		*(.pretext)
+		*(.text)
+	} > rom
+	.rodata : {
+		*(.rodata)
+		*(.rodata.str1.4)
+		_romdata_start = . ;
+	} > rom
+	.bss : {
+		_start_bss = . ;
+		_bssdatasize = . ;
+		LONG(0);
+		*(.bss)
+		*(COMMON)
+		_end_bss = . ;
+	} > ram
+	.data : AT(_romdata_start) {
+		_start_data = . ;
+		*(.data)
+		_end_data = . ;
+	} > ram
+}
diff --git a/microfx_src/src/microfx.c b/microfx_src/src/microfx.c
new file mode 100644
index 0000000..4297c3e
--- /dev/null
+++ b/microfx_src/src/microfx.c
@@ -0,0 +1,89 @@
+#include "../include/microfx/microfx.h"
+
+/******* DISPLAY *******/
+
+/* Syscalls */
+
+void _Bdisp_PutDisp_DD(void);
+void _Bdisp_DrawRectangle(int x1, int y1, int x2, int y2);
+void _Bdisp_AllClr_VRAM(void);
+void _Bdisp_SetPoint_VRAM(int x, int y, int color);
+void _PrintXY(int x, int y, unsigned char *text, int type);
+void _locate(int x, int y);
+void _Print(unsigned char *text);
+
+/* Microfx */
+
+void sclear() {
+	_Bdisp_AllClr_VRAM();
+}
+
+void supdate() {
+	_Bdisp_PutDisp_DD();
+}
+
+void spixel(int x, int y, int color) {
+	_Bdisp_SetPoint_VRAM(x, y, color);
+}
+
+void srect(int x1, int y1, int x2, int y2) {
+	_Bdisp_DrawRectangle(x1, y1, x2, y2);
+}
+
+void stext(int x, int y, char *text) {
+	_PrintXY(x, y, (unsigned char*)text, 0);
+}
+
+void slocate(int x, int y, char *text) {
+	_locate(x, y);
+	_Print((unsigned char*)text);
+}
+
+/******* KEYBOARD *******/
+
+/* Syscalls */
+
+short _Keyboard_GetPressedTime(void);
+int _Keyboard_IsKeyPressed_fast(short *matrixcode);
+int _Keyboard_IsKeyPressed(short *matrixcode);
+int _Keyboard_KeyDown(void);
+int _Keyboard_PRGM_GetKey(unsigned char* buffer);
+
+/* Microfx */
+
+int kisdown(void) {
+	return _Keyboard_KeyDown();
+}
+
+int kcheck(int key, int type) {
+	short skey = (short)key;
+	switch(type){
+		case KFAST:
+			return _Keyboard_IsKeyPressed_fast(&skey);
+			break;
+		default:
+			return _Keyboard_IsKeyPressed(&skey);
+			break;
+	}
+}
+
+int kgetkey(void){
+	unsigned char buffer[12];
+	_Keyboard_PRGM_GetKey(buffer);
+	return (buffer[1] & 0x0F) * 10 + ((buffer[2] & 0xF0 ) >> 4);
+}
+
+/******* Time *******/
+
+/* Syscalls */
+
+void _Sleep(int delay_ms);
+int _RTC_GetTicks(void);
+int _RTC_Elapsed_ms(int start_value, int duration_in_ms);
+
+/* Microfx */
+
+void tsleep_ms(int ms) {
+	_Sleep(ms);
+}
+
diff --git a/microfx_src/src/start.c b/microfx_src/src/start.c
new file mode 100644
index 0000000..665955d
--- /dev/null
+++ b/microfx_src/src/start.c
@@ -0,0 +1,21 @@
+extern char start_bss, end_bss;
+extern char start_data, end_data;
+extern char romdata_start;
+extern int main(void);
+
+__attribute__((section(".pretext")))
+
+int start(int isappli, int optnum) {
+	int i;
+	char *bss_startptr = &start_bss;
+	for(i=0;i<&end_bss - &start_bss;i++){
+		bss_startptr[i] = 0;
+	}
+	char *data_startptr = &start_data;
+	char *romdataptr = &romdata_start;
+	for(i=0;i<&end_data - &start_data;i++){
+		data_startptr[i] = romdataptr[i];
+	}
+	return main();
+}
+
diff --git a/microfx_src/src/syscall.S b/microfx_src/src/syscall.S
new file mode 100644
index 0000000..703c5a0
--- /dev/null
+++ b/microfx_src/src/syscall.S
@@ -0,0 +1,76 @@
+.text
+
+.global __Bdisp_PutDisp_DD
+.global __Bdisp_DrawRectangle
+.global __Bdisp_AllClr_VRAM
+.global __Bdisp_SetPoint_VRAM
+.global __Bdisp_GetPoint_VRAM
+.global __PrintXY
+.global __locate
+.global __Print
+/* Keyboard */
+.global __Keyboard_GetPressedTime
+.global __Keyboard_IsKeyPressed
+.global __Keyboard_IsKeyPressed_fast
+.global __Keyboard_KeyDown
+.global __Keyboard_PRGM_GetKey
+/* Time */
+.global __Sleep
+.global __RTC_GetTicks
+.global __RTC_Elapsed_ms
+/* Files */
+/* Tools */
+.global _itoa
+
+#define syscall(syscall_number) \
+	mov.l   1f, r0 ;\
+	mov.l   do_syscall, r2 ;\
+	jmp     @r2 ;\
+	nop ;\
+.align 4 ;\
+1:	.long	syscall_number
+
+/* Display */
+__Bdisp_PutDisp_DD:
+	syscall(0x028)
+__Bdisp_DrawRectangle:
+	syscall(0x0763)
+__Bdisp_AllClr_VRAM:
+	syscall(0x143)
+__Bdisp_SetPoint_VRAM:
+	syscall(0x146)
+__Bdisp_GetPoint_VRAM:
+	syscall(0x149)
+__PrintXY:
+	syscall(0x150)
+__locate:
+	syscall(0x807)
+__Print:
+	syscall(0x808)
+/* Keyboard */
+__Keyboard_GetPressedTime:
+	syscall(0x249)
+__Keyboard_IsKeyPressed:
+	syscall(0x24C)
+__Keyboard_IsKeyPressed_fast:
+	syscall(0x24B)
+__Keyboard_KeyDown:
+	syscall(0x24D)
+__Keyboard_PRGM_GetKey:
+	syscall(0x6C4)
+/* Time */
+__Sleep:
+	syscall(0x0420)
+__RTC_GetTicks:
+	syscall(0x03B)
+__RTC_Elapsed_ms:
+	syscall(0x03C)
+/* Files */
+/* Nothing here ... */
+/* Tools */
+_itoa:
+	syscall(0x541)
+/* Menu */
+/* Nothing here ... */
+
+do_syscall: .long 0x80010070
diff --git a/template/Makefile b/template/Makefile
new file mode 100644
index 0000000..a6698b8
--- /dev/null
+++ b/template/Makefile
@@ -0,0 +1,40 @@
+NAME = Template
+
+ELF = $(NAME).elf
+BIN = $(NAME).bin
+
+CC = sh-elf-gcc
+
+SRC = src/main.c
+OBJ = $(SRC:src/%=build/%.o)
+
+ICON = icon.png
+
+LIB = lib
+
+BUILD = build
+
+VERSION = v.1.0
+
+all: $(BIN)
+	fxgxa --g1a -n $(NAME) -i $(ICON) --version="$(VERSION)" -o $(NAME).g1a build/$(BIN)
+	sh-elf-objdump -h $(BUILD)/$(ELF)
+
+$(BIN): $(ELF)
+	sh-elf-objcopy -O binary build/$(ELF) build/$(BIN) -R .bss
+
+$(ELF): $(OBJ) | $(LIB)/
+	$(CC) $< lib/libMicrofx.a -o $(BUILD)/$@ -nostdlib -T lib/fx98xx.ld -ffreestanding -mb -m3 -Os -Wa,--dsp
+
+$(BUILD)/%.o: src/% | $(BUILD)/
+	$(CC) -c $< -o $@ -Os -Ilib/include/
+
+.PRECIOUS: %/
+
+%/:
+	@ mkdir -p $@
+
+clean: $(BUILD)
+	rm $(BUILD) --recursive
+	rm $(NAME).g1a
+
diff --git a/template/icon.png b/template/icon.png
new file mode 100644
index 0000000..d15353b
Binary files /dev/null and b/template/icon.png differ
diff --git a/template/lib/fx98xx.ld b/template/lib/fx98xx.ld
new file mode 100644
index 0000000..8a5279b
--- /dev/null
+++ b/template/lib/fx98xx.ld
@@ -0,0 +1,33 @@
+ENTRY(_start)
+
+MEMORY
+{
+	rom (rx)  : ORIGIN = 0x00300200, LENGTH = 512K
+	ram (rw) : ORIGIN = 0x08100200, LENGTH = 20K
+}
+
+SECTIONS
+{
+	.text : {
+		*(.pretext)
+		*(.text)
+	} > rom
+	.rodata : {
+		*(.rodata)
+		*(.rodata.str1.4)
+		_romdata_start = . ;
+	} > rom
+	.bss : {
+		_start_bss = . ;
+		_bssdatasize = . ;
+		LONG(0);
+		*(.bss)
+		*(COMMON)
+		_end_bss = . ;
+	} > ram
+	.data : AT(_romdata_start) {
+		_start_data = . ;
+		*(.data)
+		_end_data = . ;
+	} > ram
+}
diff --git a/template/lib/include/microfx/config.h.in b/template/lib/include/microfx/config.h.in
new file mode 100644
index 0000000..a660533
--- /dev/null
+++ b/template/lib/include/microfx/config.h.in
@@ -0,0 +1,6 @@
+#ifndef MICROFX_CONFIG_H
+#define MICROFX_CONFIG_H
+
+#define EX_VERSION "@libMicrofx_VERSION@"
+
+#endif
diff --git a/template/lib/include/microfx/keycodes.h b/template/lib/include/microfx/keycodes.h
new file mode 100644
index 0000000..b7182cd
--- /dev/null
+++ b/template/lib/include/microfx/keycodes.h
@@ -0,0 +1,6 @@
+#ifndef KEYCODES_H
+#define KEYCODES_H
+
+#define KCEXIT 47
+
+#endif
diff --git a/template/lib/include/microfx/microfx.h b/template/lib/include/microfx/microfx.h
new file mode 100644
index 0000000..7186084
--- /dev/null
+++ b/template/lib/include/microfx/microfx.h
@@ -0,0 +1,68 @@
+#ifndef MICROFX_H
+#define MICROFX_H
+
+#include "keycodes.h"
+
+/******* DISPLAY *******/
+
+enum {SWHITE = 0, SBLACK};
+
+/* void sclear(void);
+
+Clears the screen in white.
+*/
+
+void sclear(void);
+
+/*
+
+*/
+
+void supdate(void);
+
+/*
+
+*/
+
+void srect(int x1, int y1, int x2, int y2);
+
+/*
+
+*/
+
+void spixel(int x, int y, int color);
+
+/*
+
+*/
+
+void stext(int x, int y, char *text);
+
+/*
+
+*/
+
+void slocate(int x, int y, char *text);
+
+/******* KEYBOARD *******/
+
+enum {KFAST = 0, KLONG};
+
+int kisdown(void);
+int kcheck(int key, int type);
+int kgetkey(void);
+
+/******* TOOLS *******/
+
+/*
+
+*/
+
+void itoa(int n, char *buffer);
+
+/******* TIME *******/
+
+void tsleep_ms(int ms);
+
+#endif
+
diff --git a/template/lib/libMicrofx.a b/template/lib/libMicrofx.a
new file mode 100644
index 0000000..18dfd8b
Binary files /dev/null and b/template/lib/libMicrofx.a differ
diff --git a/template/src/main.c b/template/src/main.c
new file mode 100644
index 0000000..5c1912b
--- /dev/null
+++ b/template/src/main.c
@@ -0,0 +1,6 @@
+#include <microfx/microfx.h>
+
+int main(void) {
+	stext(1, 1, "A Microfx Add-in !");
+	return 1;
+}