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circle buffers now power of two size and indicies are unsigned to help gcc make a few nice optimizations

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Simen Svale Skogsrud
2011-02-18 21:46:18 +01:00
parent 124bc363bd
commit 6152d16205
2 changed files with 6 additions and 6 deletions
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6
wiring_serial.c
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@@ -31,12 +31,12 @@
// using a ring buffer (I think), in which rx_buffer_head is the index of the
// location to which to write the next incoming character and rx_buffer_tail
// is the index of the location from which to read.
#define RX_BUFFER_SIZE 200
#define RX_BUFFER_SIZE 256
unsigned char rx_buffer[RX_BUFFER_SIZE];
int rx_buffer_head = 0;
int rx_buffer_tail = 0;
uint8_t rx_buffer_head = 0;
uint8_t rx_buffer_tail = 0;
void beginSerial(long baud)
{