Motorola LD-W-1 User's Guide download pdf (Page 16)

System LSI Division, Semiconductor Business

Fixed: The addition of pointer is calculated as signed integer even if the type is

unsigned. So when adding pointer with a value that exceeds the range of signed

integer, its result is different from the expected value because of the 16-signed

addition.

Ex>

#include <stdio.h>

void main(void) {

unsigned char* p = (unsigned char*)0x80000;

unsigned char a = 0x80;

unsigned char b = 0x00;

unsigned int i = 0x00ff;

unsigned long l = 0x10000;

// 0x80000 + ~0x00ff = 0x8ff00

if ((p + ~i) != (unsigned char*)0x8ff00)

printf("fail\n");

// 0x80000 + (unsigned int)(0x10000>>1) = 0x88000

if ((p + (unsigned int)(l>>1)) != (unsigned char*)0x88000)

printf("fail\n");

// 0x80000 + (0x00ff|0xff00) = 0x8ffff

if ((p + (i|0xff00)) != (unsigned char*)0x8ffff)

printf("fail\n");

// 0x80000 + (0x00ff^0xff00) = 0x8ffff

if ((p + (i^0xff00)) != (unsigned char*)0x8ffff)

printf("fail\n");

i = 0xff00;

// 0x80000 + (0xff00&0xf000) = 0x8f000

if ((p + (i&0xf000)) != (unsigned char*)0x8f000)

printf("fail\n");

}

EXT: Inside function’s body the definition of variable with the keyword ‘code’ should be

not permitted.

Ex>

void foo(void) {

code int i = 0x23; // not permitted, the error should be generated.

}

Fixed: In release mode when using inline assembly function ‘__asm’ the following error is

generated.

Error message : error: syntax error; invalid inline assembly

Ex>

void foo(void) {

int i;

i = 1;

__asm(“nop”);

}

EXT: Support the function placed the variable with the keyword ‘code’ at the absolute

address of ROM using the keyword ‘_at”

Ex>

code int arr[10] = {2,} _at_ 0x10000; // 0x10000 is the address of ROM

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