how to use 64 bit data type in stm8s003

agilandeswari · ‎2015-09-07

Posted on September 07, 2015 at 12:00

how to use 64 bit data type in stm8s003f3? if i use unsigned long long its not takeing and giving error.

#st

luca239955_stm1_st · ‎2015-09-07

Posted on September 07, 2015 at 12:22

which compiler?

If it's Cosmic, the long long (64 bits) datatype is not implemented for the STM8, since it would be very heavy for such a small core to handle such a large datatype.

Regards.

Philipp Krause · ‎2015-09-09

Posted on September 09, 2015 at 19:03

64-bit integers were introduced in the ISO C99 standard, which, as far as I know, is supported by SDCC and IAR C, but not the other compilers.

In C99 on STM8 you can use long long, unsigned long long, uint16_t int64_t, uint_fast64_t, uint_least64_t, int_fast64_t, int_least64_t.

Philipp