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Updated 16bit counter example with higher level functions

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This commit is contained in:
Jason Turner
2021-05-05 16:44:30 -06:00
parent 77c25389aa
commit ab9dd4e1b7
2 changed files with 40 additions and 28 deletions
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57
examples/16bit_counter.cpp
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@@ -34,21 +34,29 @@ inline void puts(uint8_t x, uint8_t y, std::string_view str) {
str.size());
}
inline void put_hex(uint8_t x, uint8_t y, uint8_t value)
{
}
inline void put_hex(uint8_t x, uint8_t y, uint16_t value)
{
}
inline void putc(uint8_t x, uint8_t y, uint8_t c) {
const auto start = 0x400 + (y * 40 + x);
poke(start, c);
}
inline void put_hex(uint8_t x, uint8_t y, uint8_t value) {
const auto put_nibble = [](auto x, auto y, uint8_t nibble) {
if (nibble <= 9) {
putc(x, y, nibble + 48);
} else {
putc(x, y, nibble - 9);
}
};
put_nibble(x + 1, y, 0xF & value);
put_nibble(x, y, 0xF & (value >> 4));
}
inline void put_hex(uint8_t x, uint8_t y, uint16_t value) {
put_hex(x+2,y, static_cast<std::uint8_t>(0xFF & value));
put_hex(x,y, static_cast<std::uint8_t>(0xFF & (value >> 8)));
}
struct Clock {
using milliseconds = std::chrono::duration<std::uint16_t, std::milli>;
@@ -83,29 +91,24 @@ int main() {
/*
puts(5, 5, "hello world");
puts(10, 10, "hellooooo world");
*/
Clock game_clock{};
Clock game_clock{};
*/
std::uint16_t counter = 0;
std::uint16_t us_elapsed = 0;
int y = 0;
std::uint8_t y = 15;
while (true) {
// const auto us_elapsed = game_clock.restart().count();
const auto us_elapsed = game_clock.restart().count();
for (int i = 0; i < 4; ++i) {
const auto nibble = static_cast<std::uint8_t>((us_elapsed >> (i * 4)) & 0xF);
if (nibble <= 9) {
putc(6 - i, y, nibble + 48);
} else {
putc(6 - i, y, nibble - 9);
}
put_hex(5, y, us_elapsed);
put_hex(11, y, counter);
if (y++ == 20) {
y = 15;
}
if (y++ == 5) {
y = 0;
}
++us_elapsed;
++counter;
increment_border_color();
}