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Routines |
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Used by the routine at C7D0.
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| E641 | LD A,$01 | |||
| E643 | LD ($EB50),A | Set graphic frame number/address pointer offset (no offset) | ||
| E646 | LD A,$00 | |||
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Deal with spell menu routines, depending on spells activated:
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| E648 | LD ($EBB7),A | General purpose byte used for a few different things - reset here | ||
| E64B | LD A,($EAE1) | Check what's been already drawn | ||
| E64E | CP $08 | |||
| E650 | JP Z,$E677 | If the spell list has already been printed, can skip the next few routines as they've been done | ||
| E653 | CP $18 | Energy bar printed | ||
| E655 | JP Z,$E77E | |||
| E658 | CP $20 | MOVE spell selected | ||
| E65A | JP Z,$E852 | |||
| E65D | CP $30 | Spell cast requiring a controllable cursor icon, e.g. SERVANT, MISSILE | ||
| E65F | JP Z,$E929 | |||
| E662 | CP $38 | Spell selected that is the same as the currently active effect spell | ||
| E664 | JP Z,$EA1D | |||
| E667 | CALL $DEF9 | Clear the Scroll status panel at the bottom of the screen | ||
| E66A | CALL $DF33 | Print spell names on the scroll | ||
| E66D | LD A,$00 | |||
| E66F | LD ($EAEC),A | Reset spell number/pointer (EAE6) | ||
| E672 | LD A,$08 | |||
| E674 | LD ($EAE1),A | Indicate that spell list has now been printed | ||
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Draw the pointer/selector arrow on the scroll:
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| E677 | LD A,$85 | Graphics address pointer offset for the scroll pointer arrow graphics at AFA6. | ||
| E679 | CALL $E0C2 | Set up the arrow graphic ready to draw | ||
| E67C | LD DE,$5092 | Screen address display position for the middle of the scroll, to draw the arrow pointer | ||
| E67F | CALL $DD24 | Draw the scroll arrow pointer | ||
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Next, check for key/control presses in the spell menu.
Check if the fire button is being pressed:
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| E682 | LD A,($EB32) | Check FIRE control flag (0 = not pressed, 1 = pressed) | ||
| E685 | CP $00 | |||
| E687 | JR Z,$E68C | |||
| E689 | JP $E6FA | Launch spell selection routine if fire is pressed | ||
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Fire button not pressed - check for UP/DOWN:
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| E68C | LD A,($EAFE) | Get up/down flag: 1 = up, -1 (255) = down, 0 = not pressed | ||
| E68F | CP $00 | Check if it's pressed | ||
| E691 | JR NZ,$E699 | |||
| E693 | LD A,$05 | If it's not pressed, set this counter byte to 5 - it's used to determine an incremental series of 5 tones, while the player holds up/down to scroll through the spell list | ||
| E695 | LD ($EAA6),A | |||
| E698 | RET | |||
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