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Routines |
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Increments var_prng1 (0–6, wraps to 1 at 7). Runs prng_advance_2 B more times
for non-linear stirring. Used to randomise visitor behaviour.
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| prng_tick | B721 | LD A,($C34D) | Load var_prng1 into A | |
| B724 | INC A | INC A | ||
| B725 | CP $07 | If A == 7 → prng_reset_1 (reset to 1) | ||
| B727 | CALL Z,prng_reset_1 | |||
| B72A | LD ($C34D),A | Store A back to var_prng1 | ||
| B72D | LD B,A | B = A (use new value as repeat count) | ||
| prng_tick_0 | B72E | CALL prng_advance_2 | Run PRNG sub-step (prng_advance_2) | |
| B731 | DJNZ prng_tick_0 | DJNZ — repeat B times for non-linear stirring | ||
| B733 | RET | |||
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