#include <stdio.h>
#include <unistd.h>
#include <stdint.h>
+#include <stdlib.h>
#include "avr_uart.h"
#include "sim_hex.h"
+//#define TRACE(_w) _w
+#ifndef TRACE
+#define TRACE(_w)
+#endif
+
DEFINE_FIFO(uint8_t, uart_fifo);
static avr_cycle_count_t avr_uart_txc_raise(struct avr_t * avr, avr_cycle_count_t when, void * param)
}
uint8_t v = uart_fifo_read(&p->input);
- //printf("UART read %02x %s\n", v, uart_fifo_isempty(&p->input) ? "EMPTY!" : "");
+// TRACE(printf("UART read %02x %s\n", v, uart_fifo_isempty(&p->input) ? "EMPTY!" : "");)
avr->data[addr] = v;
// made to trigger potential watchpoints
v = avr_core_watch_read(avr, addr);
p->usec_per_byte, avr_uart_txc_raise, p); // should be uart speed dependent
if (p->flags & AVR_UART_FLAG_STDIO) {
- static char buf[128];
- static int l = 0;
- buf[l++] = v < ' ' ? '.' : v;
- buf[l] = 0;
- if (v == '\n' || l == 127) {
- l = 0;
- printf( FONT_GREEN "%s\n" FONT_DEFAULT, buf);
+ const int maxsize = 256;
+ if (!p->stdio_out)
+ p->stdio_out = malloc(maxsize);
+ p->stdio_out[p->stdio_len++] = v < ' ' ? '.' : v;
+ p->stdio_out[p->stdio_len] = 0;
+ if (v == '\n' || p->stdio_len == maxsize) {
+ p->stdio_len = 0;
+ printf( FONT_GREEN "%s\n" FONT_DEFAULT, p->stdio_out);
}
}
- //printf("UDR%c(%02x) = %02x\n", p->name, addr, v);
+ TRACE(printf("UDR%c(%02x) = %02x\n", p->name, addr, v);)
// tell other modules we are "outputing" a byte
if (avr_regbit_get(avr, p->txen))
avr_raise_irq(p->io.irq + UART_IRQ_OUTPUT, v);
avr_cycle_timer_register_usec(avr, p->usec_per_byte, avr_uart_rxc_raise, p); // should be uart speed dependent
uart_fifo_write(&p->input, value); // add to fifo
- // printf("UART IRQ in %02x (%d/%d) %s\n", value, p->input.read, p->input.write, uart_fifo_isfull(&p->input) ? "FULL!!" : "");
+ TRACE(printf("UART IRQ in %02x (%d/%d) %s\n", value, p->input.read, p->input.write, uart_fifo_isfull(&p->input) ? "FULL!!" : "");)
if (uart_fifo_isfull(&p->input))
avr_raise_irq(p->io.irq + UART_IRQ_OUT_XOFF, 1);