44fe73ff8f
For the Sub/Compare with carry, the old Z flag is also used to AND the newZ: newZ = (result==0) & oldZ
70 lines
1.0 KiB
C
70 lines
1.0 KiB
C
#include <avr/io.h>
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#include <stdio.h>
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char buffer[30];
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volatile char buf[3];
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static int uart_putchar(char c, FILE *stream);
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static FILE mystdout = FDEV_SETUP_STREAM(uart_putchar, NULL,
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_FDEV_SETUP_WRITE);
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static int
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uart_putchar(char c, FILE *stream)
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{
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UDR = c;
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return 0;
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}
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int
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main(void)
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{
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stdout = &mystdout;
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buf[0] = 'x';
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buf[1] = 'y';
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buf[2] = '\0';
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puts(buf);
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asm volatile("break;");
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printf(":%c", buf[0]);
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asm volatile("break;");
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printf(":%d:", buf[1]);
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asm volatile("break;");
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volatile float x=0.23;
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printf(":%.2f:", x);
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asm volatile("break;");
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return 0;
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}
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/**
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check-name: Print to Stdout
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compiler-opts: -Wl,-u,vfprintf -lm -lprintf_flt
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check-start:
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\avr@instr@stepn{100000}
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\avr@test@UDR{xy^10} % ^10 == \n
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\def\avr@UDR{}
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\avr@instr@stepn{100000}
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\avr@test@UDR{:x}
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\avr@instr@stepn{100000}
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\avr@test@UDR{:121:}
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\avr@instr@stepn{100000}
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\avr@test@UDR{:0.23:}
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check-end:
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**/
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