Routines |
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Used by the routine at compare.
The address of this routine is found in the table of addresses. It is called via the calculator literal +37 by the routines at NEXT_LOOP, PRINT_FP, ln, get_argt and to_power.
This subroutine returns a 'last value' of one if the present 'last value' is greater than zero and zero otherwise. It is also used by other subroutines to 'jump on plus'.
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greater_0 | 34F9 | CALL TEST_ZERO | Is the 'last-value' zero? | |||||
34FC | RET C | If so, return. | ||||||
34FD | LD A,$FF | Jump forward to less_0 but signal the opposite action is needed. | ||||||
34FF | JR SIGN_TO_C |
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