Ejemplos de mp_binary_set_int en C++ (Cpp)

Ejemplo n.º 1

Archivo: binary.c Proyecto: ChuckM/micropython

void mp_binary_set_val(char struct_type, char val_type, mp_obj_t val_in, byte **ptr) {
    byte *p = *ptr;
    mp_uint_t align;

    size_t size = mp_binary_get_size(struct_type, val_type, &align);
    if (struct_type == '@') {
        // Make pointer aligned
        p = (byte*)(((mp_uint_t)p + align - 1) & ~((mp_uint_t)align - 1));
        if (MP_ENDIANNESS_LITTLE) {
            struct_type = '<';
        } else {
            struct_type = '>';
        }
    }
    *ptr = p + size;

    mp_uint_t val;
    switch (val_type) {
        case 'O':
            val = (mp_uint_t)val_in;
            break;
#if MICROPY_PY_BUILTINS_FLOAT
        case 'f': {
            union { uint32_t i; float f; } fp_sp;
            fp_sp.f = mp_obj_get_float(val_in);
            val = fp_sp.i;
            break;
        }
        case 'd': {
            union { uint64_t i64; uint32_t i32[2]; double f; } fp_dp;
            fp_dp.f = mp_obj_get_float(val_in);
            if (BYTES_PER_WORD == 8) {
                val = fp_dp.i64;
            } else {
                int be = struct_type == '>';
                mp_binary_set_int(sizeof(uint32_t), be, p, fp_dp.i32[MP_ENDIANNESS_BIG ^ be]);
                p += sizeof(uint32_t);
                val = fp_dp.i32[MP_ENDIANNESS_LITTLE ^ be];
            }
            break;
        }
#endif
        default:
            #if MICROPY_LONGINT_IMPL != MICROPY_LONGINT_IMPL_NONE
            if (MP_OBJ_IS_TYPE(val_in, &mp_type_int)) {
                mp_obj_int_to_bytes_impl(val_in, struct_type == '>', size, p);
                return;
            } else
            #endif
            {
                val = mp_obj_get_int(val_in);
                // sign extend if needed
                if (BYTES_PER_WORD < 8 && size > sizeof(val) && is_signed(val_type) && (mp_int_t)val < 0) {
                    memset(p + sizeof(val), 0xff, size - sizeof(val));
                }
            }
    }

    mp_binary_set_int(MIN((size_t)size, sizeof(val)), struct_type == '>', p, val);
}

Ejemplo n.º 2

Archivo: binary.c Proyecto: gan0ling/micropython

void mp_binary_set_val(char struct_type, char val_type, mp_obj_t val_in, byte **ptr) {
    byte *p = *ptr;
    mp_uint_t align;

    int size = mp_binary_get_size(struct_type, val_type, &align);
    if (struct_type == '@') {
        // Make pointer aligned
        p = (byte*)(((mp_uint_t)p + align - 1) & ~((mp_uint_t)align - 1));
        if (MP_ENDIANNESS_LITTLE) {
            struct_type = '<';
        } else {
            struct_type = '>';
        }
    }
    *ptr = p + size;

    mp_uint_t val;
    switch (val_type) {
        case 'O':
            val = (mp_uint_t)val_in;
            break;
#if MICROPY_PY_BUILTINS_FLOAT
        case 'f': {
            union { uint32_t i; float f; } fp_sp;
            fp_sp.f = mp_obj_get_float(val_in);
            val = fp_sp.i;
            break;
        }
        case 'd': {
            union { uint64_t i64; uint32_t i32[2]; double f; } fp_dp;
            fp_dp.f = mp_obj_get_float(val_in);
            if (BYTES_PER_WORD == 8) {
                val = fp_dp.i64;
            } else {
                int be = struct_type == '>';
                mp_binary_set_int(sizeof(uint32_t), be, p, fp_dp.i32[MP_ENDIANNESS_BIG ^ be]);
                p += sizeof(uint32_t);
                val = fp_dp.i32[MP_ENDIANNESS_LITTLE ^ be];
            }
            break;
        }
#endif
        default:
            // we handle large ints here by calling the truncated accessor
            if (MP_OBJ_IS_TYPE(val_in, &mp_type_int)) {
                val = mp_obj_int_get_truncated(val_in);
            } else {
                val = mp_obj_get_int(val_in);
            }
    }

    mp_binary_set_int(MIN((size_t)size, sizeof(val)), struct_type == '>', p, val);
}

Ejemplo n.º 3

Archivo: binary.c Proyecto: jdede/micropython

void mp_binary_set_val(char struct_type, char val_type, mp_obj_t val_in, byte **ptr) {
    byte *p = *ptr;
    mp_uint_t align;

    int size = mp_binary_get_size(struct_type, val_type, &align);
    if (struct_type == '@') {
        // Make pointer aligned
        p = (byte*)(((mp_uint_t)p + align - 1) & ~((mp_uint_t)align - 1));
        #if MP_ENDIANNESS_LITTLE
        struct_type = '<';
        #else
        struct_type = '>';
        #endif
    }
    *ptr = p + size;

#if MP_ENDIANNESS_BIG
#error Not implemented
#endif
    mp_int_t val;
    byte *in = (byte*)&val;
    switch (val_type) {
        case 'O':
            in = (byte*)&val_in;
            break;
        default:
            val = mp_obj_get_int(val_in);
    }

    mp_binary_set_int(MIN(size, sizeof(val)), struct_type == '>', p, in);
}