|
Definition:
|
call(atom a)
|
|
Description:
|
Call a machine language routine that starts at address a. This
routine must execute a RET instruction #C3 to return control
to Phix. The routine should save and restore any registers
that it uses.
|
|
pwa/p2js:
|
Not supported
|
|
Comments:
|
You can allocate() a block of memory for the routine and then
poke() in the bytes of machine code. You might allocate other blocks of
memory for data and parameters that the machine code can operate
on. The addresses of these blocks could be poked into the
machine code.
|
|
Example:
|
demo\rosetta\Compiler\vm.exw
|
|
Implementation:
|
See builtins\VM\pcfunc.e (an autoinclude) for details of the actual implementation.
|
|
See Also:
|
allocate,
free,
peek,
poke,
x86 call,
ARM branches
|
