Print INT64 value subroutine

In: $71 - integer value
Out: nothing, only print to screen
Mod: $71 - $74; buffer in system RAM: maximum EA00...006C - EA00...007F

Comments: Prints 64-bit integer (positive or negative) to screen

Input INT64 value subroutine

In: no
Out: $71 - input value
Mod: $71 - $76; buffer in system RAM: maximum EA00...0060 - EA00...0076

Comments: Converts text string (till "Enter") to 64-bit integer; controls input for correct digits and shows incorrect one the following way:

123e4
   ^???

Print DOUBLE value subroutine (with 9 digits)

In: $71 - double value
Out: nothing, only print to screen
Mod: $71 - $76; buffer in system RAM for output (see Print INT64 value subroutine)

Comments: subroutine prints float number with 9 digits. To get another number of digits, use the next subroutine

Subroutine has no special code: just set $72 = 9 and calls Print DOUBLE value subroutine

Print DOUBLE value subroutine

In: $71 - double value, $72 - number of digits
Out: nothing, only print to screen
Mod: $71 - $76; buffer in system RAM for output (see Print INT64 value subroutine)

Comments: calculates mantissa with specified number of digits and exponent; prints in the form 0.<mantissa>e<exponent>

Print CHAR value subroutine

In: $71 - character code
Out: nothing, only print to screen
Mod: no

Comments:

Input CHAR value subroutine

In: no
Out: $71 - input character
Mod: no

Comments:

Print BOOLEAN value subroutine

In: $71 - boolean value: 0 - FALSE, else TRUE
Out: nothing, only print to screen
Mod: $71 - $73

Comments: Uses next subroutine

Print text after subroutine call

In: text after subroutine call (first byte - number of symbols)
Out: nothing, only print to screen
Mod: $71, $72

Comments: To use this subroutine you must do the following. After standard GO instruction with displacement 30 put number of symbols in the text string into next byte and then text itself. As MMIX instruction of our program after the text must have address multiply by 4, fill if necessary the rest bytes by zeros for example. Say for text "NO" the required 4 bytes after the subroutine call may be
02 4E 4F 00

Next line subroutine

In: no
Out: nothing, only print to screen
Mod: $71

Comments: Prints CR and LF codes.

Convert INT64 to DOUBLE subroutine

In: $71 - integer value
Out: $71 - float value
Mod: $72 - $76

Comments: Converts 8-byte integer into 8 byte double. Integer always can be converted into double, so subroutine always executes successfully.