§ Шаблон для верилятора
#include <SDL2/SDL.h>
#include <verilated.h>
SDL_Surface* screen_surface;
SDL_Window* sdl_window;
SDL_Renderer* sdl_renderer;
SDL_PixelFormat* sdl_pixel_format;
SDL_Texture* sdl_screen_texture;
SDL_Event evt;
Uint32* screen_buffer;
SDL_Rect dstRect;
int scale = 2;
int width = 640;
int height = 400;
int length = 16;
int _hs = 0, _vs = 0;
int x = 0, y = 0;
void pset(int, int, Uint32);
void vga(int, int, int);
int main(int argc, char** argv)
{
int pticks = 0;
if (SDL_Init(SDL_INIT_VIDEO | SDL_INIT_AUDIO)) {
exit(1);
}
SDL_ClearError();
sdl_window = SDL_CreateWindow(
"T8080 VEMULATOR",
SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED,
scale*width, scale*height,
SDL_WINDOW_SHOWN);
sdl_renderer = SDL_CreateRenderer(sdl_window, -1, SDL_RENDERER_PRESENTVSYNC);
sdl_screen_texture =
SDL_CreateTexture(sdl_renderer,
SDL_PIXELFORMAT_BGRA32,
SDL_TEXTUREACCESS_STREAMING,
width, height);
SDL_SetTextureBlendMode(sdl_screen_texture, SDL_BLENDMODE_NONE);
screen_buffer = (Uint32*) malloc(width*height*sizeof(Uint32));
dstRect.x = 0;
dstRect.y = 0;
dstRect.w = scale * width;
dstRect.h = scale * height;
for (;;)
{
while (SDL_PollEvent(& evt))
{
switch (evt.type)
{
case SDL_QUIT:
free(screen_buffer);
SDL_DestroyTexture(sdl_screen_texture);
SDL_FreeFormat(sdl_pixel_format);
SDL_DestroyRenderer(sdl_renderer);
SDL_DestroyWindow(sdl_window);
SDL_Quit();
return 0;
}
}
int nticks = SDL_GetTicks();
if (nticks - pticks >= length) {
pticks = nticks;
SDL_UpdateTexture(sdl_screen_texture, NULL, screen_buffer, width * sizeof(Uint32));
SDL_SetRenderDrawColor (sdl_renderer, 0, 0, 0, 0);
SDL_RenderClear (sdl_renderer);
SDL_RenderCopy (sdl_renderer, sdl_screen_texture, NULL, & dstRect);
SDL_RenderPresent (sdl_renderer);
}
SDL_Delay(1);
}
}
void pset(int x, int y, Uint32 cl)
{
if (x < 0 || y < 0 || x >= width || y >= height) {
return;
}
screen_buffer[width*y + x] = cl;
}
void vga(int hs, int vs, int cl)
{
if (hs) x++;
if (_hs == 1 && hs == 0) { x = 0; y++; }
if (_vs == 0 && vs == 1) { y = 0; }
_hs = hs;
_vs = vs;
pset(x-(48+2), y-33, cl);
}
§ makefile
VLIB="/usr/share/verilator/include"
LIBS=$(VLIB)/verilated_threads.cpp $(VLIB)/verilated.cpp
all: ica app
app: syn
g++ -o i8080 -I$(VLIB) i8080.cc -lSDL2 $(LIBS)
./i8080
syn:
#verilator --threads 1 -cc xxx.v > /dev/null
#cd obj_dir && make -f Vxxx.mk > /dev/null
ica:
iverilog -g2005-sv -DICARUS=1 -o tb.qqq tb.v
vvp tb.qqq >> /dev/null
rm tb.qqq
vcd:
gtkwave tb.vcd
wav:
gtkwave tb.gtkw