Floating Point Trap Handler Services

Here is the complete list of SPIM trap handler services. Each I/O method uses a specific format for data. The methods for double use an even-odd pair of registers.

Service	Code in $v0	Arguments	Returned Value
print integer	1	$a0 == integer
print float	2	$f12 == float
print double	3	($f12, $f13) == double
print string	4	$a0 == address of string
read integer	5		$v0 <-- integer
read float	6		$f0 <-- float
read double	7		($f0, $f1) <-- double
read string	8	$a0 == buffer address $a1 == buffer length
allocate memory	9	$a0 == number of bytes	$v0 <-- address
exit	10