nesemu/debugger/ppu_view.c

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//
// Created by william on 5/1/24.
//
#include <stdlib.h>
#include "ppu_view.h"
void ppv_print_line(PpuView *view, byte reg, int line, char *fmt) {
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int reg_value = ppu_get_state()->registers[reg];
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window_print(view->window, 0, line, fmt);
for (int i = 0; i < 0x8; i++) {
byte mask = 0x80 >> i;
byte bit = (reg_value & mask) >> (8 - i - 1);
int print_offset = 10 + i;
if (i > 3) {
print_offset += 1;
}
window_print(view->window, print_offset, line, "%d", bit);
}
}
void ppv_print(PpuView *view) {
ppv_print_line(view, PPU_REGISTER_CTRL, 0, " CTRL:");
ppv_print_line(view, PPU_REGISTER_MASK, 1, " MASK:");
ppv_print_line(view, PPU_REGISTER_STATUS, 2, " STATUS:");
ppv_print_line(view, PPU_REGISTER_OAM_ADDR, 3, "OAM_ADDR:");
ppv_print_line(view, PPU_REGISTER_OAM_DATA, 4, "OAM_DATA:");
ppv_print_line(view, PPU_REGISTER_SCROLL, 5, " SCROLL:");
ppv_print_line(view, PPU_REGISTER_ADDR, 6, " ADDR:");
ppv_print_line(view, PPU_REGISTER_DATA, 7, " DATA:");
}
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PpuView *ppv_init(int x, int y) {
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PpuView *view = malloc(sizeof(PpuView));
view->window = malloc(sizeof(Window));
window_init(view->window, x, y, PPU_VIEW_WIDTH, PPU_VIEW_HEIGHT, "PPU VIEW");
ppv_print(view);
return view;
}
void ppv_uninit(PpuView *view) {
free(view->window);
free(view);
}