#!/usr/bin/perl -w my $code_start = oct(shift) || die "no code start addr"; my $stack_size = oct(shift) || die "no stack size"; open MAP, ") { next unless /^BSS/; (undef, $bss_start, $bss_end, undef) = split /\s+/; $bss_start = hex $bss_start; $bss_end = hex $bss_end; } close MAP; $free = (0xbc20 - $stack_size) - $bss_end + 1; $code_size = $bss_start - $code_start; $bss_size = $bss_end - $bss_start + 1; printf "===> code ends at \$%04x (%d, %.1fK)\n", ($bss_start - 1), $code_size, $code_size / 1024; printf "===> BSS ends at \$%04x (%d, %.1fK)\n", $bss_end, $bss_size, $bss_size / 1024; printf "===> stack starts at \$%04x\n", 0xbc20 - $stack_size; printf "===> free code space \$%04x (%d, %.1fK)\n", $free, $free, $free / 1024;