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using write_cell to test color palette

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shockrahwow 2019-01-18 12:47:13 -08:00
parent 2600868abd
commit e09e9ffc82
1 changed files with 9 additions and 23 deletions
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32
framebuffer.c
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@ -12,21 +12,11 @@
/* /*
enum typedef Colors{ enum typedef Colors{
Black, Black, Blue, Green,
Blue, Cyan, Red, Magenta,
Green, Brown, LightGrey, DarkGrey,
Cyan, LightBlue, LightGreen, LightCyan,
Red, LightRed, LightMagenta, LightBrown,
Magenta,
Brown,
LightGrey,
DarkGrey,
LightBlue,
LightGreen,
LightCyan,
LightRed,
LightMagenta,
LightBrown,
White, White,
}; };
*/ */
@ -36,17 +26,13 @@ enum typedef Colors{
static char* Frame_Buffer = (char*)0x000B8000; static char* Frame_Buffer = (char*)0x000B8000;
// Writes character to a given cell in the framebuffer // Writes character to a given cell in the framebuffer
// Safety handled by caller function // Safety handled by caller function
void write_cell(const unsigned cell, const char c, const char fg_bg) { void write_cell(unsigned cell, char c, char fg, char bg) {
Frame_Buffer[cell] = c; Frame_Buffer[cell] = c;
Frame_Buffer[cell+1] = fg_bg; Frame_Buffer[cell+1] = (fg & 0x0f << 4) | (bg & 0x0f);
} }
void colors() { void colors() {
// finding what the fucking colors are that we can draw for(int i =0;i<0x10;i++) {
unsigned char color = 0x00; write_cell(i, 'a', 8, 8);
for(int i =0;i<0x20;i++) {
Frame_Buffer[i] = 'a';
Frame_Buffer[i+1] = color;
color++;
} }
} }