Knight Tyme (48k): Routine at 31280

31280: Cast Fortify Yourself if possible, otherwise display failure message

Used by the routine at 55726.

Input
HL	(Entry at 31283 only) Pointer to a character's current stats

31280

LD HL,25020

Point HL at Magic Knight's current stats

This entry point is used by the routine at 31257.

31283

LD B,4

Load B with 4 (as we are fortifying four stats)

31285

LD C,25

Load C with 25 (increment for stats)

31287

LD A,(HL)

Load current stat into A...

31288

CALL 53703

...increment A by 25, capping at 100...

31291

LD (HL),A

...and store

31292

INC HL

Advance HL to next stat

31293

DJNZ 31285

Decrease B (remaining number of stats to fortify) and loop back to 31285

31295

LD A,(25024)

Load B with unused bit...

31298

AND 128

...

31300

LD B,A

...

31301

XOR A

Set A (magic level) to zero (see trivia)

31302

OR B

Recombine unused bit...

31303

LD (25024),A

...and store

31306

CALL 55651

Flash border and screen (as in cast a spell)

31309

JP 29479

Display "PRESS FIRE TO CONTINUE" window and wait for input and return to main game loop