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Add a Console device and start refactoring screen output.

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This commit is contained in:
Andreas Kling 2018-10-21 21:59:43 +02:00
parent d5ec18027e
commit a70bfb87d5
5 changed files with 95 additions and 13 deletions
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15
Kernel/VGA.cpp
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@ -5,6 +5,7 @@
#include "StdLib.h"
#include "Task.h"
#include <stdarg.h>
#include "Console.h"
PRIVATE BYTE *vga_mem = 0L;
PRIVATE BYTE current_attr = 0x07;
@ -15,6 +16,11 @@ template<typename PutChFunc> static int printNumber(PutChFunc, char*&, DWORD);
template<typename PutChFunc> static int printHex(PutChFunc, char*&, DWORD, BYTE fields);
template<typename PutChFunc> static int printSignedNumber(PutChFunc, char*&, int);
static void console_putch(char*, char ch)
{
Console::the().write((byte*)&ch, 1);
}
static void vga_putch(char*, char ch)
{
WORD row;
@ -120,6 +126,15 @@ int kprintfInternal(PutChFunc putch, char* buffer, const char*& fmt, char*& ap)
}
int kprintf(const char* fmt, ...)
{
va_list ap;
va_start(ap, fmt);
int ret = kprintfInternal(console_putch, nullptr, fmt, ap);
va_end(ap);
return ret;
}
int kprintfFromConsole(const char* fmt, ...)
{
va_list ap;
va_start(ap, fmt);