1 files changed, 85 insertions, 0 deletions
diff --git a/py/objfloat.c b/py/objfloat.c
new file mode 100644
index 0000000000..f151fe25a0
--- /dev/null
+++ b/py/objfloat.c
@@ -0,0 +1,85 @@
+#include <stdlib.h>
+#include <stdint.h>
+#include <string.h>
+#include <assert.h>
+
+#include "nlr.h"
+#include "misc.h"
+#include "mpconfig.h"
+#include "obj.h"
+#include "runtime0.h"
+
+#if MICROPY_ENABLE_FLOAT
+
+typedef struct _mp_obj_float_t {
+    mp_obj_base_t base;
+    mp_float_t value;
+} mp_obj_float_t;
+
+mp_obj_t mp_obj_new_float(mp_float_t value);
+
+void float_print(void (*print)(void *env, const char *fmt, ...), void *env, mp_obj_t o_in) {
+    mp_obj_float_t *o = o_in;
+    print(env, "%.8g", o->value);
+}
+
+mp_obj_t float_unary_op(int op, mp_obj_t o_in) {
+    mp_obj_float_t *o = o_in;
+    switch (op) {
+        case RT_UNARY_OP_NOT: if (o->value != 0) { return mp_const_true;} else { return mp_const_false; }
+        case RT_UNARY_OP_POSITIVE: return o_in;
+        case RT_UNARY_OP_NEGATIVE: return mp_obj_new_float(-o->value);
+        default: return NULL; // op not supported
+    }
+}
+
+mp_obj_t float_binary_op(int op, mp_obj_t lhs_in, mp_obj_t rhs_in) {
+    if (MP_OBJ_IS_TYPE(rhs_in, &complex_type)) {
+        return complex_type.binary_op(op, lhs_in, rhs_in);
+    }
+    mp_float_t lhs_val = mp_obj_get_float(lhs_in);
+    mp_float_t rhs_val = mp_obj_get_float(rhs_in);
+    switch (op) {
+        case RT_BINARY_OP_ADD:
+        case RT_BINARY_OP_INPLACE_ADD: lhs_val += rhs_val; break;
+        case RT_BINARY_OP_SUBTRACT:
+        case RT_BINARY_OP_INPLACE_SUBTRACT: lhs_val -= rhs_val; break;
+        case RT_BINARY_OP_MULTIPLY:
+        case RT_BINARY_OP_INPLACE_MULTIPLY: lhs_val *= rhs_val; break;
+        /* TODO floor(?) the value
+        case RT_BINARY_OP_FLOOR_DIVIDE:
+        case RT_BINARY_OP_INPLACE_FLOOR_DIVIDE: val = lhs_val / rhs_val; break;
+        */
+        case RT_BINARY_OP_TRUE_DIVIDE:
+        case RT_BINARY_OP_INPLACE_TRUE_DIVIDE: lhs_val /= rhs_val; break;
+        return NULL; // op not supported
+    }
+    return mp_obj_new_float(lhs_val);
+}
+
+const mp_obj_type_t float_type = {
+    { &mp_const_type },
+    "float",
+    float_print,
+    NULL, // call_n
+    float_unary_op,
+    float_binary_op,
+    NULL, // getiter
+    NULL, // iternext
+    { { NULL, NULL }, }, // method list
+};
+
+mp_obj_t mp_obj_new_float(mp_float_t value) {
+    mp_obj_float_t *o = m_new(mp_obj_float_t, 1);
+    o->base.type = &float_type;
+    o->value = value;
+    return (mp_obj_t)o;
+}
+
+mp_float_t mp_obj_float_get(mp_obj_t self_in) {
+    assert(MP_OBJ_IS_TYPE(self_in, &float_type));
+    mp_obj_float_t *self = self_in;
+    return self->value;
+}
+
+#endif