I'M BACK

Modified some things in CONTRIBUTING and in the Makefile.
Started coding some things for the FAT12 filesystem.

CONTRIBUTING.md

@@ -9,8 +9,8 @@ This project isn't nothing serius, just a hobby project.
 
 ## Violate the license
 
-XanvicOS has a license, the GPLv3 license. If has been chosen by the author of something, it has been chosen for a reason. If you violate it you don't respect the idea of the creator about his code.
+XanvicOS has a license, the GPLv3 license. If has been chosen by the author, it has been chosen for a reason. If you violate it you don't respect the idea of the creator about his code.
-So, in respec of the author, don't violate it.
+So, to respect of the author, don't violate it.
 
 ## Violate the Code of Conduct
 
@@ -18,11 +18,15 @@ Pretty much for the same reason as the license: it exist, it has been chosen, pl
 
 ## Hurt and/or harass someone
 
-If you don't understand why, we DON'T need more people like you. As I already wrote in "What we want", we need to respect each other, so let's do it, no?
+As I already wrote in "What we want", we need to respect each other, so let's do it, no?
 
 ## Do something stupid
 
-"Doing something stupid" means a lot, by don't knowing what you are doing, to commit crimes. But it doesn't mean you can't make some errors here and there, we are humans after all.
+"Doing something stupid" means a lot, from not knowing what you are doing, to commiting crimes.
+
+## Troll (too much)
+
+You can make some trolls, but you can't do something like creating 100 pull request about deleting all the code.
 
 # Here is what you need to do
 
@@ -30,10 +34,6 @@ If you don't understand why, we DON'T need more people like you. As I already wr
 
 As I already said, this project is built off the idea of respecting each other while contributing. Without respect nothing can be done.
 
-## Don't troll (too much)
-
-You can make some trolls, but you can't make like 100 pull request about deleting all the code and call it "modernize the code"
-
 ## Think before doing
 
-Self-explenatory, before doing something, think about what can be done better. If you can't think of anything better, then do it
+Self-explenatory, before doing something, think about what can be done better. If you can't think of anything better, do it

Makefile

@@ -6,7 +6,7 @@ LD16=/usr/bin/watcom/binl/wlink
 SRC_DIR=src
 BUILD_DIR=build
 
-.PHONY: all immagine_floppy kernel bootloader clean always
+.PHONY: all immagine_floppy kernel bootloader always clean
 
 
 #Immagine floppy
@@ -54,6 +54,6 @@ always:
 #Clean
 
 clean:
-	rm -rf $(BUILD_DIR)/* 
+	rm $(BUILD_DIR)/* -rf
 
 #Strumenti

src/bootloader/stage2/disk.h

@@ -0,0 +1,14 @@
+#pragma once
+#include "stdint.h"
+#include <cstdint>
+#include <stdio.h>
+
+typedef struct {
+    uint8_t id;
+    uint16_t cilindri;
+    uint16_t settori;
+    uint16_t testine;
+} DISCO;
+
+bool InizializzaDisco(DISCO* disco, uint8_t numeroDisco);
+bool leggiSettoriDisco(DISCO* disco, uint32_t lba, uint8_t settori, uint8_t far* dataOut);

src/bootloader/stage2/x86.asm

@@ -46,3 +46,105 @@ _x86_div64_32:
     pop bp
 
     ret
+
+global _x86_ResettaDisco
+
+_x86_ResettaDisco:
+    push bp
+    mov bp, sp
+
+    mov ah, 0
+    mov dl, [bp + 4]
+    stc
+    int 13h
+
+    mov ax, 1
+    sbb ax, 0
+
+    mov sp, bp
+    pop bp
+
+    ret
+
+global _x86_LeggiDisco
+
+_x86_LeggiDisco:
+    push bp
+    mov bp, sp
+
+    mov dl, [bp + 4]
+    mov ch, [bp + 6]
+    mov cl, [bp + 7]
+    shl cl, 6
+    mov dh, [bp + 8]
+    mov al, [bp + 10]
+    and al, 3Fh
+    or cl, al
+    mov al, [bp + 12]
+    mov bx, [bp + 16]
+    mov es, bx
+    mov bx, [bp + 14]
+
+    mov ah, 02h
+    stc
+    int 13h
+
+    mov ax, 1
+    sbb ax, 0
+
+    pop es
+    pop bx
+
+    mov sp, bp
+    pop bp
+
+    ret
+
+global _x86_OttieniParametriDisco
+
+_x86_OttieniParametriDisco:
+    push bp
+    mov bp, sp
+
+    push es
+    push bx
+    push si
+    push di
+
+    mov dl, [bp + 4]
+    mov ah, 08h
+    mov di, 0
+    mov es, di
+    stc
+    int 13h
+
+    mov ax, 1
+    sbb ax, 0
+
+    mov si, [bp + 6]
+    mov [si], bl
+
+    mov bl, ch
+    mov bh, cl
+    shr bh, 6
+    mov si, [bp + 8]
+    mov [si], bx
+
+    xor ch, ch
+    and cl, 3Fh
+    mov si, [bp + 10]
+    mov [si], cx
+
+    mov cl, dh
+    mov si, [bp + 12]
+    mov [si], cx
+
+    pop es
+    pop bx
+    pop si
+    pop di
+
+    mov sp, bp
+    pop bp
+
+    ret

src/bootloader/stage2/x86.h

@@ -2,5 +2,7 @@
 #include "stdint.h"
 
 void _cdecl x86_div64_32(uint64_t dividend, uint32_t divisor, uint64_t* quotientOut, uint32_t* remainderOut);
-
 void _cdecl x86_Video_WriteCharTeletype(char c, uint8_t page);
+void _cdecl x86_ResettaDisco(uint8_t drive);
+void _cdecl x86_LeggiDisco(uint8_t drive, uint16_t cilindro, uint16_t testina, uint16_t settore, uint8_t numeroSettore, uint8_t far * dataOut);
+void _cdecl X86_OttieniParametriDisco(uint8_t drive, uint16_t tipoDriveOut, uint16_t cilindriOut, uint16_t settoriOut, uint16_t testineOut);