1 files changed, 309 insertions, 0 deletions
diff --git a/circuitpython/py/objint_longlong.c b/circuitpython/py/objint_longlong.c
new file mode 100644
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+++ b/circuitpython/py/objint_longlong.c
@@ -0,0 +1,309 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * SPDX-FileCopyrightText: Copyright (c) 2013, 2014 Damien P. George
+ * Copyright (c) 2014 Paul Sokolovsky
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include <stdlib.h>
+#include <string.h>
+
+#include "py/smallint.h"
+#include "py/objint.h"
+#include "py/runtime.h"
+
+#include "supervisor/shared/translate.h"
+
+#if MICROPY_PY_BUILTINS_FLOAT
+#include <math.h>
+#endif
+
+#if MICROPY_LONGINT_IMPL == MICROPY_LONGINT_IMPL_LONGLONG
+
+#if MICROPY_PY_SYS_MAXSIZE
+// Export value for sys.maxsize
+const mp_obj_int_t mp_sys_maxsize_obj = {{&mp_type_int}, MP_SSIZE_MAX};
+#endif
+
+mp_obj_t mp_obj_int_bit_length_impl(mp_obj_t self_in) {
+    assert(mp_obj_is_type(self_in, &mp_type_int));
+    mp_obj_int_t *self = self_in;
+    long long val = self->val;
+    return MP_OBJ_NEW_SMALL_INT(
+        (val == 0) ? 0 :
+        (val == MP_SMALL_INT_MIN) ? 8 * sizeof(long long) :
+        (val < 0) ? 8 * sizeof(long long) - __builtin_clzll(-val) :
+        8 * sizeof(long long) - __builtin_clzll(val));
+}
+
+mp_obj_t mp_obj_int_from_bytes_impl(bool big_endian, size_t len, const byte *buf) {
+    int delta = 1;
+    if (!big_endian) {
+        buf += len - 1;
+        delta = -1;
+    }
+
+    mp_longint_impl_t value = 0;
+    for (; len--; buf += delta) {
+        value = (value << 8) | *buf;
+    }
+    return mp_obj_new_int_from_ll(value);
+}
+
+void mp_obj_int_to_bytes_impl(mp_obj_t self_in, bool big_endian, size_t len, byte *buf) {
+    assert(mp_obj_is_type(self_in, &mp_type_int));
+    mp_obj_int_t *self = self_in;
+    long long val = self->val;
+    if (big_endian) {
+        byte *b = buf + len;
+        while (b > buf) {
+            *--b = val;
+            val >>= 8;
+        }
+    } else {
+        for (; len > 0; --len) {
+            *buf++ = val;
+            val >>= 8;
+        }
+    }
+}
+
+int mp_obj_int_sign(mp_obj_t self_in) {
+    mp_longint_impl_t val;
+    if (mp_obj_is_small_int(self_in)) {
+        val = MP_OBJ_SMALL_INT_VALUE(self_in);
+    } else {
+        mp_obj_int_t *self = self_in;
+        val = self->val;
+    }
+    if (val < 0) {
+        return -1;
+    } else if (val > 0) {
+        return 1;
+    } else {
+        return 0;
+    }
+}
+
+mp_obj_t mp_obj_int_unary_op(mp_unary_op_t op, mp_obj_t o_in) {
+    mp_obj_int_t *o = o_in;
+    switch (op) {
+        case MP_UNARY_OP_BOOL:
+            return mp_obj_new_bool(o->val != 0);
+
+        // truncate value to fit in mp_int_t, which gives the same hash as
+        // small int if the value fits without truncation
+        case MP_UNARY_OP_HASH:
+            return MP_OBJ_NEW_SMALL_INT((mp_int_t)o->val);
+
+        case MP_UNARY_OP_POSITIVE:
+            return o_in;
+        case MP_UNARY_OP_NEGATIVE:
+            return mp_obj_new_int_from_ll(-o->val);
+        case MP_UNARY_OP_INVERT:
+            return mp_obj_new_int_from_ll(~o->val);
+        case MP_UNARY_OP_ABS: {
+            mp_obj_int_t *self = MP_OBJ_TO_PTR(o_in);
+            if (self->val >= 0) {
+                return o_in;
+            }
+            self = mp_obj_new_int_from_ll(self->val);
+            // TODO could overflow long long
+            self->val = -self->val;
+            return MP_OBJ_FROM_PTR(self);
+        }
+        default:
+            return MP_OBJ_NULL;      // op not supported
+    }
+}
+
+mp_obj_t mp_obj_int_binary_op(mp_binary_op_t op, mp_obj_t lhs_in, mp_obj_t rhs_in) {
+    long long lhs_val;
+    long long rhs_val;
+
+    if (mp_obj_is_small_int(lhs_in)) {
+        lhs_val = MP_OBJ_SMALL_INT_VALUE(lhs_in);
+    } else {
+        assert(mp_obj_is_type(lhs_in, &mp_type_int));
+        lhs_val = ((mp_obj_int_t *)lhs_in)->val;
+    }
+
+    if (mp_obj_is_small_int(rhs_in)) {
+        rhs_val = MP_OBJ_SMALL_INT_VALUE(rhs_in);
+    } else if (mp_obj_is_type(rhs_in, &mp_type_int)) {
+        rhs_val = ((mp_obj_int_t *)rhs_in)->val;
+    } else {
+        // delegate to generic function to check for extra cases
+        return mp_obj_int_binary_op_extra_cases(op, lhs_in, rhs_in);
+    }
+
+    switch (op) {
+        case MP_BINARY_OP_ADD:
+        case MP_BINARY_OP_INPLACE_ADD:
+            return mp_obj_new_int_from_ll(lhs_val + rhs_val);
+        case MP_BINARY_OP_SUBTRACT:
+        case MP_BINARY_OP_INPLACE_SUBTRACT:
+            return mp_obj_new_int_from_ll(lhs_val - rhs_val);
+        case MP_BINARY_OP_MULTIPLY:
+        case MP_BINARY_OP_INPLACE_MULTIPLY:
+            return mp_obj_new_int_from_ll(lhs_val * rhs_val);
+        case MP_BINARY_OP_FLOOR_DIVIDE:
+        case MP_BINARY_OP_INPLACE_FLOOR_DIVIDE:
+            if (rhs_val == 0) {
+                goto zero_division;
+            }
+            return mp_obj_new_int_from_ll(lhs_val / rhs_val);
+        case MP_BINARY_OP_MODULO:
+        case MP_BINARY_OP_INPLACE_MODULO:
+            if (rhs_val == 0) {
+                goto zero_division;
+            }
+            return mp_obj_new_int_from_ll(lhs_val % rhs_val);
+
+        case MP_BINARY_OP_AND:
+        case MP_BINARY_OP_INPLACE_AND:
+            return mp_obj_new_int_from_ll(lhs_val & rhs_val);
+        case MP_BINARY_OP_OR:
+        case MP_BINARY_OP_INPLACE_OR:
+            return mp_obj_new_int_from_ll(lhs_val | rhs_val);
+        case MP_BINARY_OP_XOR:
+        case MP_BINARY_OP_INPLACE_XOR:
+            return mp_obj_new_int_from_ll(lhs_val ^ rhs_val);
+
+        case MP_BINARY_OP_LSHIFT:
+        case MP_BINARY_OP_INPLACE_LSHIFT:
+            return mp_obj_new_int_from_ll(lhs_val << (int)rhs_val);
+        case MP_BINARY_OP_RSHIFT:
+        case MP_BINARY_OP_INPLACE_RSHIFT:
+            return mp_obj_new_int_from_ll(lhs_val >> (int)rhs_val);
+
+        case MP_BINARY_OP_POWER:
+        case MP_BINARY_OP_INPLACE_POWER: {
+            if (rhs_val < 0) {
+                #if MICROPY_PY_BUILTINS_FLOAT
+                return mp_obj_float_binary_op(op, lhs_val, rhs_in);
+                #else
+                mp_raise_ValueError(MP_ERROR_TEXT("negative power with no float support"));
+                #endif
+            }
+            long long ans = 1;
+            while (rhs_val > 0) {
+                if (rhs_val & 1) {
+                    ans *= lhs_val;
+                }
+                if (rhs_val == 1) {
+                    break;
+                }
+                rhs_val /= 2;
+                lhs_val *= lhs_val;
+            }
+            return mp_obj_new_int_from_ll(ans);
+        }
+
+        case MP_BINARY_OP_LESS:
+            return mp_obj_new_bool(lhs_val < rhs_val);
+        case MP_BINARY_OP_MORE:
+            return mp_obj_new_bool(lhs_val > rhs_val);
+        case MP_BINARY_OP_LESS_EQUAL:
+            return mp_obj_new_bool(lhs_val <= rhs_val);
+        case MP_BINARY_OP_MORE_EQUAL:
+            return mp_obj_new_bool(lhs_val >= rhs_val);
+        case MP_BINARY_OP_EQUAL:
+            return mp_obj_new_bool(lhs_val == rhs_val);
+
+        default:
+            return MP_OBJ_NULL; // op not supported
+    }
+
+zero_division:
+    mp_raise_msg(&mp_type_ZeroDivisionError, MP_ERROR_TEXT("division by zero"));
+}
+
+mp_obj_t mp_obj_new_int(mp_int_t value) {
+    if (MP_SMALL_INT_FITS(value)) {
+        return MP_OBJ_NEW_SMALL_INT(value);
+    }
+    return mp_obj_new_int_from_ll(value);
+}
+
+mp_obj_t mp_obj_new_int_from_uint(mp_uint_t value) {
+    // SMALL_INT accepts only signed numbers, so make sure the input
+    // value fits completely in the small-int positive range.
+    if ((value & ~MP_SMALL_INT_POSITIVE_MASK) == 0) {
+        return MP_OBJ_NEW_SMALL_INT(value);
+    }
+    return mp_obj_new_int_from_ll(value);
+}
+
+mp_obj_t mp_obj_new_int_from_ll(long long val) {
+    mp_obj_int_t *o = m_new_obj(mp_obj_int_t);
+    o->base.type = &mp_type_int;
+    o->val = val;
+    return o;
+}
+
+mp_obj_t mp_obj_new_int_from_ull(unsigned long long val) {
+    // TODO raise an exception if the unsigned long long won't fit
+    if (val >> (sizeof(unsigned long long) * 8 - 1) != 0) {
+        mp_raise_msg(&mp_type_OverflowError, MP_ERROR_TEXT("ulonglong too large"));
+    }
+    mp_obj_int_t *o = m_new_obj(mp_obj_int_t);
+    o->base.type = &mp_type_int;
+    o->val = val;
+    return o;
+}
+
+mp_obj_t mp_obj_new_int_from_str_len(const char **str, size_t len, bool neg, unsigned int base) {
+    // TODO this does not honor the given length of the string, but it all cases it should anyway be null terminated
+    // TODO check overflow
+    mp_obj_int_t *o = m_new_obj(mp_obj_int_t);
+    o->base.type = &mp_type_int;
+    char *endptr;
+    o->val = strtoll(*str, &endptr, base);
+    *str = endptr;
+    return o;
+}
+
+mp_int_t mp_obj_int_get_truncated(mp_const_obj_t self_in) {
+    if (mp_obj_is_small_int(self_in)) {
+        return MP_OBJ_SMALL_INT_VALUE(self_in);
+    } else {
+        const mp_obj_int_t *self = self_in;
+        return self->val;
+    }
+}
+
+mp_int_t mp_obj_int_get_checked(mp_const_obj_t self_in) {
+    // TODO: Check overflow
+    return mp_obj_int_get_truncated(self_in);
+}
+
+#if MICROPY_PY_BUILTINS_FLOAT
+mp_float_t mp_obj_int_as_float_impl(mp_obj_t self_in) {
+    assert(mp_obj_is_type(self_in, &mp_type_int));
+    mp_obj_int_t *self = self_in;
+    return self->val;
+}
+#endif
+
+#endif