Skip to navigation

Universe: tal

[BBC Micro cassette version]

Name: tal [Show more] Type: Subroutine Category: Universe Summary: Print the current galaxy number
Context: See this subroutine in context in the source code References: This subroutine is called as follows: * TT27 calls tal

Print control code 1 (the current galaxy number, right-aligned to width 3).
.tal CLC \ We don't want to print the galaxy number with a \ decimal point, so clear the C flag for pr2 to take as \ an argument LDX GCNT \ Load the current galaxy number from GCNT into X INX \ Add 1 to the galaxy number, as the galaxy numbers \ are 0-7 internally, but we want to display them as \ galaxy 1 through 8 JMP pr2 \ Jump to pr2, which prints the number in X to a width \ of 3 figures, left-padding with spaces to a width of \ 3, and return from the subroutine using a tail call