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 +30 by the routines at DRAW, int, sqr and to_power. It is also called indirectly via fp_calc_2.
This subroutine returns a 'last value' of one if the present 'last value' is zero and zero otherwise. It is also used by other subroutines to 'jump on zero'.
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f_not | 3501 | CALL TEST_ZERO | The carry flag will be set only if the 'last value' is zero; this gives the correct result. | |||||
3504 | JR FP_0_1 | Jump forward. |
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