all: Move BYTES_PER_WORD definition from ports to py/mpconfig.h

It can still be overwritten by a port in mpconfigport.h but for almost
all cases one can use the provided default.

bare-arm/mpconfigport.h

@@ -46,8 +46,6 @@
 
 // type definitions for the specific machine
 
-#define BYTES_PER_WORD (4)
-
 #define MICROPY_MAKE_POINTER_CALLABLE(p) ((void*)((mp_uint_t)(p) | 1))
 
 #define UINT_FMT "%lu"

cc3200/mpconfigport.h

@@ -200,7 +200,6 @@ extern const struct _mp_obj_module_t mp_module_ussl;
 
 
 // type definitions for the specific machine
-#define BYTES_PER_WORD                              (4)
 #define MICROPY_MAKE_POINTER_CALLABLE(p)            ((void*)((mp_uint_t)(p) | 1))
 #define MP_SSIZE_MAX                                (0x7FFFFFFF)
 

esp8266/mpconfigport.h

@@ -118,8 +118,6 @@
 
 // type definitions for the specific machine
 
-#define BYTES_PER_WORD (4)
-
 #define MICROPY_MAKE_POINTER_CALLABLE(p) ((void*)((mp_uint_t)(p)))
 
 #define MP_SSIZE_MAX (0x7fffffff)

examples/embedding/mpconfigport_minimal.h

@@ -119,8 +119,6 @@ typedef int mp_int_t; // must be pointer size
 typedef unsigned int mp_uint_t; // must be pointer size
 #endif
 
-#define BYTES_PER_WORD sizeof(mp_int_t)
-
 // Cannot include <sys/types.h>, as it may lead to symbol name clashes
 #if _FILE_OFFSET_BITS == 64 && !defined(__LP64__)
 typedef long long mp_off_t;

minimal/mpconfigport.h

@@ -57,8 +57,6 @@
 
 // type definitions for the specific machine
 
-#define BYTES_PER_WORD (4)
-
 #define MICROPY_MAKE_POINTER_CALLABLE(p) ((void*)((mp_uint_t)(p) | 1))
 
 // This port is intended to be 32-bit, but unfortunately, int32_t for

mpy-cross/mpconfigport.h

@@ -100,8 +100,6 @@ typedef int mp_int_t; // must be pointer size
 typedef unsigned int mp_uint_t; // must be pointer size
 #endif
 
-#define BYTES_PER_WORD sizeof(mp_int_t)
-
 // Cannot include <sys/types.h>, as it may lead to symbol name clashes
 #if _FILE_OFFSET_BITS == 64 && !defined(__LP64__)
 typedef long long mp_off_t;

pic16bit/mpconfigport.h

@@ -68,7 +68,6 @@
 // type definitions for the specific machine
 
 #define MP_ENDIANNESS_LITTLE        (1)
-#define BYTES_PER_WORD              (2)
 #define MPZ_DIG_SIZE                (8)
 
 // The xc16 compiler doesn't seem to respect alignment (!!) so we

py/mpconfig.h

@@ -1105,6 +1105,11 @@ typedef double mp_float_t;
 #define STATIC static
 #endif
 
+// Number of bytes in a word
+#ifndef BYTES_PER_WORD
+#define BYTES_PER_WORD (sizeof(mp_uint_t))
+#endif
+
 #define BITS_PER_BYTE (8)
 #define BITS_PER_WORD (BITS_PER_BYTE * BYTES_PER_WORD)
 // mp_int_t value with most significant bit set

qemu-arm/mpconfigport.h

@@ -39,8 +39,6 @@
 
 // type definitions for the specific machine
 
-#define BYTES_PER_WORD (4)
-
 #define MICROPY_MAKE_POINTER_CALLABLE(p) ((void*)((mp_uint_t)(p) | 1))
 
 #define MP_SSIZE_MAX (0x7fffffff)

stmhal/mpconfigport.h

@@ -264,8 +264,6 @@ extern const struct _mp_obj_module_t mp_module_network;
 
 // type definitions for the specific machine
 
-#define BYTES_PER_WORD (4)
-
 #define MICROPY_MAKE_POINTER_CALLABLE(p) ((void*)((mp_uint_t)(p) | 1))
 
 #define MP_SSIZE_MAX (0x7fffffff)

teensy/mpconfigport.h

@@ -54,8 +54,6 @@ extern const struct _mp_obj_module_t time_module;
 
 // type definitions for the specific machine
 
-#define BYTES_PER_WORD (4)
-
 #define UINT_FMT "%u"
 #define INT_FMT "%d"
 

unix/mpconfigport.h

@@ -233,8 +233,6 @@ typedef unsigned int mp_uint_t; // must be pointer size
 #endif
 #endif
 
-#define BYTES_PER_WORD sizeof(mp_int_t)
-
 // Cannot include <sys/types.h>, as it may lead to symbol name clashes
 #if _FILE_OFFSET_BITS == 64 && !defined(__LP64__)
 typedef long long mp_off_t;

unix/mpconfigport_minimal.h

@@ -127,8 +127,6 @@ typedef int mp_int_t; // must be pointer size
 typedef unsigned int mp_uint_t; // must be pointer size
 #endif
 
-#define BYTES_PER_WORD sizeof(mp_int_t)
-
 // Cannot include <sys/types.h>, as it may lead to symbol name clashes
 #if _FILE_OFFSET_BITS == 64 && !defined(__LP64__)
 typedef long long mp_off_t;

windows/mpconfigport.h

@@ -128,8 +128,6 @@ typedef int mp_int_t; // must be pointer size
 typedef unsigned int mp_uint_t; // must be pointer size
 #endif
 
-#define BYTES_PER_WORD sizeof(mp_int_t)
-
 // Just assume Windows is little-endian - mingw32 gcc doesn't
 // define standard endianness macros.
 #define MP_ENDIANNESS_LITTLE (1)

zephyr/mpconfigport.h

@@ -99,8 +99,6 @@ typedef void *machine_ptr_t; // must be of pointer size
 typedef const void *machine_const_ptr_t; // must be of pointer size
 typedef long mp_off_t;
 
-#define BYTES_PER_WORD (sizeof(mp_int_t))
-
 #define MP_STATE_PORT MP_STATE_VM
 
 #define MICROPY_PORT_ROOT_POINTERS \

zephyr/mpconfigport_minimal.h

@@ -85,8 +85,6 @@ typedef void *machine_ptr_t; // must be of pointer size
 typedef const void *machine_const_ptr_t; // must be of pointer size
 typedef long mp_off_t;
 
-#define BYTES_PER_WORD (sizeof(mp_int_t))
-
 #define MP_STATE_PORT MP_STATE_VM
 
 #define MICROPY_PORT_ROOT_POINTERS \