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Routines |
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This routine is called by the instructions at 31025, 55173, 55287, 55294, 55308 and 55335. Immediately after each of these calls is a byte of data representing the index of the window to draw. This data is read in this routine by loading the return address (where the data is held) into DE and then performing a LD A,(DE).
There is also a JP to this routine by the instruction at 34093, however this jump lies within a block of code that is never called - see trivia.
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| 55364 | POP DE | Remove value on top of stack, as we are not returning to this address, but reading data from it | ||||||
| 55365 | LD A,(DE) | Load A with window index data... | ||||||
| 55366 | LD (55387),A | ...and modify instruction at 55386 with this index | ||||||
| 55369 | PUSH HL | Store HL (pointer to text to print) | ||||||
| 55370 | LD L,A | Load eight times window index into HL... | ||||||
| 55371 | LD H,0 | ... | ||||||
| 55373 | ADD HL,HL | ... | ||||||
| 55374 | ADD HL,HL | ... | ||||||
| 55375 | ADD HL,HL | ... | ||||||
| 55376 | LD DE,37091 | Point DE at y-coordinate of top of window in first entry of window data table at 37089... | ||||||
| 55379 | ADD HL,DE | ...and add HL as offset in HL | ||||||
| 55380 | EX DE,HL | Swap DE (now points to y-coordinate of top of required window) and HL (now points to first entry in window data table) | ||||||
| 55381 | POP HL | Restore HL (pointer to text to print) | ||||||
| 55382 | CALL 33774 | Adjust height of window to accommodate text | ||||||
| 55385 | PUSH HL | Store HL (pointer to start of text data) | ||||||
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The operand of the instruction at 55386 represents a window index. This is modified by the instruction at 55366.
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| 55386 | LD A,0 | Draw window with index specified in data previously... | ||||||
| 55388 | CALL 34990 | ... | ||||||
| 55391 | POP HL | Restore HL (pointer to start of text data) | ||||||
| 55392 | CALL 34762 | Print text to screen | ||||||
| 55395 | CALL 55138 | Display "PRESS FIRE TO CONTINUE" window and wait for fire to be pressed | ||||||
| 55398 | JP 29482 | Set Magic Knight's available action flags, validate I.D. Card if appropriate and jump to start of main game loop | ||||||
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