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Routines |
| Prev: EB41 | Up: Map | Next: EB8C |
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Used by the routines at Reset_Text_Position, Print_Menu_Strings, Initialise_New_Game, MainMenu_SelectOptions, Print_ControlKeyLabels and Draw_MainMenuLogo.
Print the character code in DE at attribute address HL using the character set at Pointer_CurrentCharacterSet and attribute CurrentTextAttribute.
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| Print_Character | EB67 | PUSH DE | Stash DE, HL and BC on the stack. | |
| EB68 | PUSH HL | |||
| EB69 | PUSH BC | |||
| EB6A | LD A,($7307) | Load A with the current text attribute (CurrentTextAttribute). | ||
| EB6D | LD (HL),A | Set the byte at HL. | ||
| EB6E | LD A,H | Copy H into A. | ||
| EB6F | ADD A,A | Multiply A by 08 to form the screen-bitmap high byte. | ||
| EB70 | ADD A,A | |||
| EB71 | ADD A,A | |||
| EB72 | AND %01011011 | A&=5B. | ||
| EB74 | LD H,A | Copy A into H. | ||
| EB75 | PUSH HL | Stash HL on the stack. | ||
| EB76 | EX DE,HL | Exchange DE and HL. | ||
| EB77 | ADD HL,HL | Multiply HL by 08 to index the character glyph. | ||
| EB78 | ADD HL,HL | |||
| EB79 | ADD HL,HL | |||
| EB7A | LD DE,($72F9) | Load DE with the current character-set pointer (Pointer_CurrentCharacterSet). | ||
| EB7E | ADD HL,DE | HL+=DE. | ||
| EB7F | POP DE | Restore DE from the stack. | ||
| EB80 | LD B,$08 | Load B with loop count 08. | ||
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Blit 08 pixel rows of the character glyph into the screen bitmap.
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| Print_CharacterLoop | EB82 | LD A,(HL) | Fetch the next script byte. | |
| EB83 | LD (DE),A | Set the byte at DE. | ||
| EB84 | INC D | Advance the high byte of the screen address by one. | ||
| EB85 | INC HL | Advance the data pointer in HL by one byte. | ||
| EB86 | DJNZ Print_CharacterLoop | Decrease the loop counter in B and jump to Print_CharacterLoop if more iterations remain. | ||
| EB88 | POP BC | Restore BC, HL and DE from the stack. | ||
| EB89 | POP HL | |||
| EB8A | POP DE | |||
| EB8B | RET | Return. | ||
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