65 lines
1.2 KiB
C
65 lines
1.2 KiB
C
#include <gint/display.h>
|
|
#include <gint/keyboard.h>
|
|
|
|
#include <gintctl/libs.h>
|
|
#include <gintctl/plot.h>
|
|
|
|
#define __BSD_VISIBLE 1
|
|
#include <openlibm/openlibm.h>
|
|
|
|
/* gintctl_libs_openlibm(): OpenLibm floating-point functions */
|
|
void gintctl_libs_openlibm(void)
|
|
{
|
|
/* Sine curve magnified 1000 times because plot() only uses ints */
|
|
int32_t x[128], y[128];
|
|
|
|
for(int i = 0; i < 128; i++)
|
|
{
|
|
x[i] = 1000 * i * M_PI / 20;
|
|
y[i] = 1000 * sin(i * M_PI / 20);
|
|
}
|
|
|
|
dclear(C_WHITE);
|
|
|
|
#ifdef FXCG50
|
|
row_title("OpenLibm floating-point functions");
|
|
row_print(1, 1, "Basic sine curve:");
|
|
|
|
struct plot plotspec = {
|
|
.area = {
|
|
.x = 20, .w = 354,
|
|
.y = 40, .h = 80,
|
|
},
|
|
.data_x = x,
|
|
.data_y = y,
|
|
.data_len = 128,
|
|
.color = C_RED,
|
|
|
|
.ticks_x = {
|
|
.multiples = 785, /* pi/4 */
|
|
.subtick_divisions = 4,
|
|
.format = "",
|
|
},
|
|
.ticks_y = {
|
|
.multiples = 250, /* 0.25 */
|
|
.subtick_divisions = 2,
|
|
.format = "",
|
|
},
|
|
|
|
.grid = {
|
|
.level = PLOT_FULLGRID,
|
|
.primary_color = C_RGB(20, 20, 20),
|
|
.secondary_color = C_RGB(28, 28, 28),
|
|
.dotted = 1,
|
|
},
|
|
};
|
|
plot(&plotspec);
|
|
|
|
row_print(8, 1, "exp(1.0) = %.8j", (int)(1e8*exp(1.0)));
|
|
row_print(9, 1, "atan(1.0)*4 = %.8j", (int)(1e8*4*atan(1.0)));
|
|
#endif
|
|
|
|
dupdate();
|
|
while(getkey().key != KEY_EXIT) {}
|
|
}
|