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Routines |
| Prev: 7D03 | Up: Map | Next: 7D60 |
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Used by the routine at routine06.
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| routine01 | 7D04 | LD A,(unknown01) | Return if unknown01 is less than 6. | |
| 7D07 | CP $06 | |||
| 7D09 | RET M | |||
| 7D0A | LD HL,map_object_table | Temporarily store address of map area object code table in object_table_entry_pointer variable. | ||
| 7D0D | LD (object_table_entry_pointer),HL | |||
| 7D10 | LD B,$9F | Load B with 159 as loop counter. | ||
| routine01_0 | 7D12 | PUSH BC | Stack loop counter. | |
| 7D13 | LD A,(HL) | Load byte from cell in map area object code table into A. | ||
| 7D14 | CP $02 | Jump to routine01_1 if byte is less than 2 or greater than 33. | ||
| 7D16 | JP M,routine01_1 | |||
| 7D19 | CP $22 | |||
| 7D1B | JP P,routine01_1 | |||
| 7D1E | LD DE,$0281 | Add $0281 to address to get address of same cell in fifth_map_table. | ||
| 7D21 | ADD HL,DE | |||
| 7D22 | LD A,(HL) | Load byte from fifth_map_table into A. | ||
| 7D23 | SUB $29 | Subtract 41 from byte read. | ||
| 7D25 | LD HL,current_player | Jump to routine01_1 if result is equal to current_player variable. | ||
| 7D28 | CP (HL) | |||
| 7D29 | JR Z,routine01_1 | |||
| 7D2B | LD HL,(object_table_entry_pointer) | Load address of cell in map area object code table back into HL from object_table_entry_pointer variable and add $01E1 to get address of same cell in map_object_properties_table. | ||
| 7D2E | LD DE,$01E1 | |||
| 7D31 | ADD HL,DE | |||
| 7D32 | LD A,(HL) | Load byte from map_object_properties_table into A. | ||
| 7D33 | AND $07 | Mod 8. | ||
| 7D35 | LD HL,current_player | Jump to routine01_2 if result is equal to current_player variable. | ||
| 7D38 | CP (HL) | |||
| 7D39 | JR Z,routine01_2 | |||
| routine01_1 | 7D3B | POP BC | Pop loop counter. | |
| 7D3C | LD HL,(object_table_entry_pointer) | Increment object_table_entry_pointer variable. | ||
| 7D3F | INC HL | |||
| 7D40 | LD (object_table_entry_pointer),HL | |||
| 7D43 | DJNZ routine01_0 | Loop back to routine01_0 158 times. | ||
| 7D45 | LD HL,unknown_table_4 | Set HL to address of unknown_table_4. | ||
| 7D48 | LD D,$00 | Add value of current_player variable as offset. | ||
| 7D4A | LD A,(current_player) | |||
| 7D4D | LD E,A | |||
| 7D4E | ADD HL,DE | |||
| 7D4F | LD (HL),$14 | Store $14 in byte pointed to by HL and return. | ||
| 7D51 | RET | |||
| routine01_2 | 7D52 | POP BC | Pop loop counter. | |
| 7D53 | LD HL,unknown_table_4 | Set HL to address of unknown_table_4. | ||
| 7D56 | LD D,$00 | |||
| 7D58 | LD A,(current_player) | |||
| 7D5B | LD E,A | Add value of current_player variable as offset. | ||
| 7D5C | ADD HL,DE | |||
| 7D5D | LD (HL),$00 | Store $00 in byte pointed to by HL and return. | ||
| 7D5F | RET | |||
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