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Routines |
| Prev: 29896 | Up: Map | Next: 29952 |
| 29912 | LD HL,58888 | Decrement Sam's main action timer in byte 8 of his buffer |
| 29915 | DEC (HL) | |
| 29916 | RET NZ | Return unless it's time to deal with Sam |
| 29917 | LD HL,29939 | We will continue at 29939 (below) after calling the routine to handle Sam |
| 29920 | PUSH HL | |
| 29921 | LD L,198 | HL=29894 |
| 29923 | LD A,(32764) | Pick up Sam's status flags from 32764 |
| 29926 | INC L | Point HL at one of the entries in the table of Sam-handling routine addresses at 29896 |
| 29927 | INC L | |
| 29928 | RLCA | |
| 29929 | JR NC,29926 | |
| 29931 | LD C,(HL) | Collect the routine address into BC |
| 29932 | INC L | |
| 29933 | LD B,(HL) | |
| 29934 | PUSH BC | Push it onto the stack, ready for an indirect jump |
| 29935 | LD HL,58880 | Point HL at byte 0 of Sam's buffer |
| 29938 | RET | Make an indirect jump to the Sam-handling routine |
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We come here after the Sam-handling routine has returned.
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| 29939 | LD HL,32764 | 32764 holds Sam's status flags |
| 29942 | LD A,(HL) | Pick them up in A |
| 29943 | AND A | Has Sam finished the action yet? |
| 29944 | RET Z | Return with the zero flag set if so |
| 29945 | LD A,(58888) | Collect Sam's main action timer from byte 8 of his buffer |
| 29948 | AND A | Did the Sam-handling routine set the action timer to a non-zero value (meaning that the action is still in progress)? |
| 29949 | RET NZ | Return with the zero flag reset if so |
| 29950 | LD (HL),A | Otherwise clear all of Sam's status flags at 32764 |
| 29951 | RET | Return with the zero flag set |
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