Re: Why Ada is not the Commercial Lang of Choice

[Dale Stanbrough <dale@goanna.cs.rmit.EDU.AU>]

Paul Van Bellinghen writes:


Claim:
It is much easier in C, for example, to output a data word to
an I/O device that is memory mapped.

Supporting Evidence:
1	One need only define a pointer
2	and assign it the memory mapped address
3	then store the desired data value to the contents of the pointer.

Example:
 #define mem_map_addr B0100040
 unsigned int *p;
 
 p = (unsigned int *) mem_map_addr;
 
 *p = 0x00344556;


Claim:
It is harder to do it in Ada because i write it out in more words.

Supporting Evidence
1	[You define a type, then a pointer]
2	and assign it the address
3	and then assign it the data value
4	[you have other options, notably an address clause for an item]

Example:
None given.


Yes, it is all so much more clearer now. Thank you Paul.


Dale