I am porting some code from Cosmic to CW. On reset, this code zeroes out all RAM variable space using the micro_clear_ram function:
void micro_clear_ram(void){ byte *i; if (&_ubsct_start != &_ubsct_end) { for (i = &_ubsct_start; i < &_ubsct_end; i++) { i = 0; } } if (&_nzpages_start != &_nzpages_end) { for (i = &_nzpages_start; i < &_nzpages_end; i++) { i = 0; } }}Here is an excerpt from the Cosmic linker file that assigns names to portions of memory and evidently maps those memory locations to the start/end variables above:
+seg .ubsct -b0x0050 -nZPAGE -m0x0100-0x0050+seg .nzpages -b0x0100 -nNZPAGES -m0x0430-0x0100+def __ubsct_start=start(ZPAGE)+def __ubsct_end=end(ZPAGE)+def __nzpages_start=start(NZPAGES)+def __nzpages_end=end(NZPAGES)
Anything like that in CodeWarrior? Using either the SECTIONS or PLACEMENT names, can I do something like this?
void micro_clear_ram_CW(void){ byte *i; for (i = &START(MY_ZEROPAGE); i < &END(MY_ZEROPAGE); i++) { *i = 0; } for (i = &START(DEFAULT_RAM); i < &END(DEFAULT_RAM); i++) { *i = 0; }}Or, is there a setting somewhere (perhaps a bean setting) that zeroes out RAM on reset?
Thanks much for your help.
