Routines
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27462: Print a message box
Used by the routines at 29716 and 32433. Prepares the text of a message in the graphic buffer at 58408 and then copies the buffer to the screen.
Input
A Message number
C Message box attribute byte
DE Attribute file address at which to print the message box
27462 LD HL,58408 The graphic data for the message box will be stored in the buffer at 58408 before being copied to the screen
27465 LD B,24 24=3 rows of 8 character squares
27467 LD (HL),C Prepare the attribute bytes in the buffer
27468 INC L
27469 DJNZ 27467
27471 PUSH DE Save the attribute file address temporarily
27472 LD L,A Set DE to the start address of the message
27473 LD H,254
27475 LD E,(HL)
27476 INC H
27477 LD D,(HL)
27478 LD HL,58456 Point HL at the address in the buffer corresponding to the start of the fourth row of pixels from the top of the message box (the first three rows are always empty)
27481 CALL 27419 Prepare the first line of text in the buffer
27484 LD HL,58520 Point HL at the address in the buffer corresponding to the start of the 12th row of pixels from the top
27487 CALL 27423 Prepare the second line of text in the buffer
27490 POP DE Retrieve the attribute file address for the message box
27491 LD HL,58408 Point to the start of the buffer
27494 JP 27364 Transfer the buffer to the screen
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