// 源程序

#include <stdio.h>

#define HIETH_SYSREG_BASE    (0x101e0000)
#define REG_RESET    0x01C    // 外设控制寄存器(IP软复位控制)
#define RESET_SHIFT    12

static void hieth_set_regbit(unsigned long addr, int bit, int shift)
{
    unsigned long reg;

    reg = 0xffffffff;

    bit = bit ? 1 : 0;
    printf("bit = %s\n", bit ? "Ture" : "Flase");

    reg &= ~(1 << shift);
    printf("reg & = %lx\n", reg);
    reg |= bit << shift;
    printf("reg | = %lx\n", reg);

    reg = 0x00000000;

    bit = bit ? 1 : 0;
    printf("bit = %s\n", bit ? "Ture" : "Flase");

    reg &= ~(1 << shift);
    printf("reg & = %lx\n", reg);
    reg |= bit << shift;
    printf("reg | = %lx\n", reg);
}

typedef struct _DEF
{
    #define W    5
    int i;
}sdef;

void perfect()
{
    #define P    5
    printf("perfect = %d sizeof(sdef) = %ld\n", P, sizeof(sdef));
}

void perfect2()
{
    printf("perfect2 = %d\n", P);
}

#define MK_BITS(shift, nbits)    ((((shift)&0x1f)<<16) | ((nbits)&0x1f))
#define BITS_RXPKG_RDY    MK_BITS(0,1)
#define hieth_readl_bits(ld, ofs, bits_desc) ({ \
        unsigned long _bits_desc = bits_desc; \
        unsigned long _shift = (_bits_desc)>>16; \
        unsigned long _mask = ((1<<(_bits_desc & 0x1F)) - 1)<<(_shift); \
        printf("[%ld %ld %ld]\n", _bits_desc, _shift, _mask);\
        printf("%ld\n", ((ld+ofs)&_mask)>>(_shift)); })

#define BITS_RXPKG_ID    MK_BITS(16, 6)

int main()
{
    int rst = 1;
    
    rst = !rst;
    printf("!rst = %d\n", rst);

    hieth_set_regbit(HIETH_SYSREG_BASE + REG_RESET, 1, RESET_SHIFT);

    perfect();
    perfect2();

    //printf("%d shift(1>>16) = %d  %d  %d\n", MK_BITS(0,1), 1>>16, MK_BITS(16,6), MK_BITS(0,11));
    //printf("%d %d %d\n", MK_BITS(16,0), MK_BITS(17,0), MK_BITS(25,0));
    //printf("%d %d %d\n", 16 & 0x1f, 17 & 0x1f, 32 & 0x1f );
    printf("main   %d\n", hieth_readl_bits(0, 1, BITS_RXPKG_ID));  

    return 0;
}