From b82ccebd3a0cce28177b5fac046139e2de7737fa Mon Sep 17 00:00:00 2001
From: Alexey Gavrilov <rebovas@yahoo.com>
Date: Sun, 20 Aug 2023 20:12:36 +0700
Subject: Getting started with print on display + some fixes

---
 arch/x86/inc/TypeConverter.cpp | 41 +++++++++++++++++++++++++++++++++++++++++
 arch/x86/inc/TypeConverter.h   | 17 +++++++++++++++++
 arch/x86/inc/types.h           |  5 +++++
 3 files changed, 63 insertions(+)
 create mode 100644 arch/x86/inc/TypeConverter.cpp
 create mode 100644 arch/x86/inc/TypeConverter.h
 create mode 100644 arch/x86/inc/types.h

(limited to 'arch/x86/inc')

diff --git a/arch/x86/inc/TypeConverter.cpp b/arch/x86/inc/TypeConverter.cpp
new file mode 100644
index 0000000..23119a2
--- /dev/null
+++ b/arch/x86/inc/TypeConverter.cpp
@@ -0,0 +1,41 @@
+#include "TypeConverter.h"
+
+void IntConverter::clearBuff()
+{
+    for(int i = 0; i < 21; i++) buffer[i] = '\0';
+};
+
+char *IntConverter::intToChar(int n)
+{
+    clearBuff();
+
+    int number = n >> 31;   // n < 0 - n = -1, else n = 0
+    number = (n ^ number) - number; // Clear sign bit
+
+    bool isNegative = n < 0;
+    unsigned int indx = 19;
+
+    do {
+        buffer[indx--] = 48 + (number % 10);
+        number /= 10;
+    }while(number != 0);
+    
+    if(isNegative) buffer[indx--] = '-';
+
+    return &buffer[++indx];
+};
+
+char *IntConverter::uintToChar(unsigned int n)
+{
+    clearBuff();
+
+    unsigned int number = n;
+    unsigned int indx = 19;
+
+    do {
+        buffer[indx--] = 48 + (number % 10);
+        number /= 10;
+    }while(number != 0);
+    
+    return &buffer[++indx];
+};
diff --git a/arch/x86/inc/TypeConverter.h b/arch/x86/inc/TypeConverter.h
new file mode 100644
index 0000000..93d2c8c
--- /dev/null
+++ b/arch/x86/inc/TypeConverter.h
@@ -0,0 +1,17 @@
+#ifndef TYPECONVERTER_H
+#define TYPECONVERTER_H
+
+#include "../io/VGADisplay.h"
+
+class IntConverter
+{
+    private:
+        char buffer[21];
+        void clearBuff();
+
+    public:
+        char *intToChar(int n);
+        char *uintToChar(unsigned int n);
+};
+
+#endif
diff --git a/arch/x86/inc/types.h b/arch/x86/inc/types.h
new file mode 100644
index 0000000..d688a35
--- /dev/null
+++ b/arch/x86/inc/types.h
@@ -0,0 +1,5 @@
+
+typedef unsigned char uint8;
+typedef unsigned int uint16;
+typedef unsigned long uint32;
+typedef unsigned long long uint64;
-- 
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