christoph/lecture-operating-system-development
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switch cpu methods to static

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This commit is contained in:
Christoph Urlacher
2022-07-24 00:29:21 +02:00
parent a5c14da0de
commit 605d4e8c8d
11 changed files with 52 additions and 62 deletions
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36
c_os/kernel/BIOS.h
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@ -10,43 +10,37 @@
#ifndef __BIOS_include__
#define __BIOS_include__
// Speicherseite fuer Rueckgabewerte von BIOS-Aufrufen
#define RETURN_MEM 0x9F000
#define RETURN_MEM 0x9F000
// Struktur fuer Parameteruebergabe fuer einen BIOS-Aufruf
struct BIOScall_params {
unsigned short DS;
unsigned short ES;
unsigned short FS;
unsigned short Flags;
unsigned int DI;
unsigned int SI;
unsigned int BP;
unsigned int SP;
unsigned int BX;
unsigned int DX;
unsigned int CX;
unsigned int AX;
unsigned short DS;
unsigned short ES;
unsigned short FS;
unsigned short Flags;
unsigned int DI;
unsigned int SI;
unsigned int BP;
unsigned int SP;
unsigned int BX;
unsigned int DX;
unsigned int CX;
unsigned int AX;
} __attribute__((packed));
// kein Auffuellen von bytes auf Wortgrenzen
// Zeiger auf Speichbereich fuer Parameter fuer BIOS-Aufruf
extern struct BIOScall_params* BC_params;
class BIOS {
private:
BIOS(const BIOS &copy); // Verhindere Kopieren
BIOS(const BIOS& copy); // Verhindere Kopieren
public:
// Initialisierung: manuelles Anlegen einer Funktion
BIOS();
// BIOS-Aufruf, per Software-Interrupt
void Int(int inter);
};