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/* Test of _SFR's macroses. Old style C program.
$Id: sfr-2.c,v 1.1.2.2 2008/05/02 08:47:36 dmix Exp $ */
/* XXX: Seems, the _SFR_MEM_ADDR() is worse. In case of _SFR_ASM_COMPAT
with __SFR_OFFSET == 0 it returns the same value, as _SFR_IO_ADDR().
This happens with SREG and below, with higher the _SFR_MEM_ADDR() is
OK. Note, the _SFR_IO_ADDR() and _SFR_ADDR() are correct with all 3
combinations of _SFR_ASM_COMPAT, __SFR_OFFSET. Now the tests of
_SFR_MEM_ADDR() are commented. */
#define _SFR_ASM_COMPAT 1
#define __SFR_OFFSET 0
#include <avr/io.h>
#include <stdlib.h>
#define cli() asm volatile ("cli")
#define sei() asm volatile ("sei")
#define nop() asm volatile ("nop")
/* Get a string like: VALUE(SREG) --> "0x3F" */
#define VALUE(port) VALUE_2 (port)
#define VALUE_2(port) #port
/* Note, this is old style where ports are pure numbers. */
#define inb(port) ({ \
unsigned char __c; \
asm volatile ("in %0," VALUE (port) : "=r" (__c)); \
__c; \
})
int main ()
{
int i;
volatile unsigned char *p;
unsigned char c;
#if defined (__AVR_AT90S8515__)
# if SREG != 0x3F || !_SFR_IO_REG_P (SREG)
# error
# endif
i = _SFR_ADDR (SREG);
if (i != 0x5F) exit (__LINE__);
/// i = _SFR_MEM_ADDR (SREG);
/// if (i != 0x5F) exit (__LINE__);
i = _SFR_IO_ADDR (SREG);
if (i != 0x3F) exit (__LINE__);
if (!_SFR_IO_REG_P (SREG)) exit (__LINE__);
# if WDTCR != 0x21 || !_SFR_IO_REG_P (WDTCR)
# error
# endif
i = _SFR_ADDR (WDTCR);
if (i != 0x41) exit (__LINE__);
/// i = _SFR_MEM_ADDR (WDTCR);
/// if (i != 0x41) exit (__LINE__);
i = _SFR_IO_ADDR (WDTCR);
if (i != 0x21) exit (__LINE__);
if (!_SFR_IO_REG_P (WDTCR)) exit (__LINE__);
# if EEARH != 0x1F || !_SFR_IO_REG_P (EEARH)
# error
# endif
i = _SFR_ADDR (EEARH);
if (i != 0x3F) exit (__LINE__);
/// i = _SFR_MEM_ADDR (EEARH);
/// if (i != 0x3F) exit (__LINE__);
i = _SFR_IO_ADDR (EEARH);
if (i != 0x1F) exit (__LINE__);
if (!_SFR_IO_REG_P (EEARH)) exit (__LINE__);
# if ACSR != 0x08 || !_SFR_IO_REG_P (ACSR)
# error
# endif
i = _SFR_ADDR (ACSR);
if (i != 0x28) exit (__LINE__);
/// i = _SFR_MEM_ADDR (ACSR);
/// if (i != 0x28) exit (__LINE__);
i = _SFR_IO_ADDR (ACSR);
if (i != 0x08) exit (__LINE__);
if (!_SFR_IO_REG_P (ACSR)) exit (__LINE__);
#elif defined (__AVR_ATmega8__)
# if SREG != 0x3F || !_SFR_IO_REG_P (SREG)
# error
# endif
i = _SFR_ADDR (SREG);
if (i != 0x5F) exit (__LINE__);
/// i = _SFR_MEM_ADDR (SREG);
/// if (i != 0x5F) exit (__LINE__);
i = _SFR_IO_ADDR (SREG);
if (i != 0x3F) exit (__LINE__);
if (!_SFR_IO_REG_P (SREG)) exit (__LINE__);
# if UCSRC != 0x20 || !_SFR_IO_REG_P (UCSRC)
# error
# endif
i = _SFR_ADDR (UCSRC);
if (i != 0x40) exit (__LINE__);
/// i = _SFR_MEM_ADDR (UCSRC);
/// if (i != 0x40) exit (__LINE__);
i = _SFR_IO_ADDR (UCSRC);
if (i != 0x20) exit (__LINE__);
if (!_SFR_IO_REG_P (UCSRC)) exit (__LINE__);
# if EEARH != 0x1F || !_SFR_IO_REG_P (EEARH)
# error
# endif
i = _SFR_ADDR (EEARH);
if (i != 0x3F) exit (__LINE__);
/// i = _SFR_MEM_ADDR (EEARH);
/// if (i != 0x3F) exit (__LINE__);
i = _SFR_IO_ADDR (EEARH);
if (i != 0x1F) exit (__LINE__);
if (!_SFR_IO_REG_P (EEARH)) exit (__LINE__);
# if TWBR != 0x00 || !_SFR_IO_REG_P (TWBR)
# error
# endif
i = _SFR_ADDR (TWBR);
if (i != 0x20) exit (__LINE__);
/// i = _SFR_MEM_ADDR (TWBR);
/// if (i != 0x20) exit (__LINE__);
i = _SFR_IO_ADDR (TWBR);
if (i != 0x00) exit (__LINE__);
if (!_SFR_IO_REG_P (TWBR)) exit (__LINE__);
#elif defined (__AVR_ATmega128__)
# if UCSR1C != 0x9D || _SFR_IO_REG_P (UCSR1C)
# error
# endif
i = _SFR_ADDR (UCSR1C);
if (i != 0x9D) exit (__LINE__);
i = _SFR_MEM_ADDR (UCSR1C);
if (i != 0x9D) exit (__LINE__);
if (_SFR_IO_REG_P (UCSR1C)) exit (__LINE__);
# if DDRF != 0x61 || _SFR_IO_REG_P (DDRF)
# error
# endif
i = _SFR_ADDR (DDRF);
if (i != 0x61) exit (__LINE__);
i = _SFR_MEM_ADDR (DDRF);
if (i != 0x61) exit (__LINE__);
if (_SFR_IO_REG_P (DDRF)) exit (__LINE__);
# if SREG != 0x3F || !_SFR_IO_REG_P (SREG)
# error
# endif
i = _SFR_ADDR (SREG);
if (i != 0x5F) exit (__LINE__);
/// i = _SFR_MEM_ADDR (SREG);
/// if (i != 0x5F) exit (__LINE__);
i = _SFR_IO_ADDR (SREG);
if (i != 0x3F) exit (__LINE__);
if (!_SFR_IO_REG_P (SREG)) exit (__LINE__);
# if SFIOR != 0x20 || !_SFR_IO_REG_P (SFIOR)
# error
# endif
i = _SFR_ADDR (SFIOR);
if (i != 0x40) exit (__LINE__);
/// i = _SFR_MEM_ADDR (SFIOR);
/// if (i != 0x40) exit (__LINE__);
i = _SFR_IO_ADDR (SFIOR);
if (i != 0x20) exit (__LINE__);
if (!_SFR_IO_REG_P (SFIOR)) exit (__LINE__);
# if EEARH != 0x1F || !_SFR_IO_REG_P (EEARH)
# error
# endif
i = _SFR_ADDR (EEARH);
if (i != 0x3F) exit (__LINE__);
/// i = _SFR_MEM_ADDR (EEARH);
/// if (i != 0x3F) exit (__LINE__);
i = _SFR_IO_ADDR (EEARH);
if (i != 0x1F) exit (__LINE__);
if (!_SFR_IO_REG_P (EEARH)) exit (__LINE__);
# if PINF != 0x00 || !_SFR_IO_REG_P (PINF)
# error
# endif
i = _SFR_ADDR (PINF);
if (i != 0x20) exit (__LINE__);
/// i = _SFR_MEM_ADDR (PINF);
/// if (i != 0x20) exit (__LINE__);
i = _SFR_IO_ADDR (PINF);
if (i != 0x00) exit (__LINE__);
if (!_SFR_IO_REG_P (PINF)) exit (__LINE__);
#else
(void)i;
#endif
/* SREG: mem addr is 0x5F (avr2..avr5) */
cli ();
if (inb (SREG) & (1 << SREG_I)) exit (__LINE__);
sei ();
if (!(inb (SREG) & (1 << SREG_I))) exit (__LINE__);
p = (void *)_SFR_ADDR (SREG);
cli ();
if (*p & (1 << SREG_I)) exit (__LINE__);
sei ();
if (!(*p & (1 << SREG_I))) exit (__LINE__);
/// p = (void *)_SFR_MEM_ADDR (SREG);
/// cli ();
/// if (*p & (1 << SREG_I)) exit (__LINE__);
/// sei ();
/// if (!(*p & (1 << SREG_I))) exit (__LINE__);
cli ();
asm volatile ("in %0,%1" : "=r" (c) : "I" (_SFR_IO_ADDR (SREG)));
if (c & (1 << SREG_I)) exit (__LINE__);
sei ();
asm volatile ("in %0,%1" : "=r" (c) : "I" (_SFR_IO_ADDR (SREG)));
if (!(c & (1 << SREG_I))) exit (__LINE__);
/* TODO: it is needed to update simulavr: do not ask PINx value, if DDRx
is set. */
#if 0
/* PORTB: mem addr is small */
DDRB = 0xFF;
PORTB = 1;
nop ();
if ((PINB & 3) != 1) exit (__LINE__);
PORTB = 2;
nop ();
if ((PINB & 3) != 2) exit (__LINE__);
#endif
return 0;
}
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