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 48 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 | 13569 | CALL TEST_ZERO | The carry flag will be set only if the 'last value' is zero; this gives the correct result. | |||||
13572 | JR FP_0_1 | Jump forward. |
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