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Routines |
| Prev: B715 | Up: Map | Next: B7BA |
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Used by the routine at E41D.
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Stash all the registers.
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| DrawCharacterItemGraphics | B77B | PUSH AF | Push AF, HL, BC and DE on the stack. | |||||||
| B77C | PUSH HL | |||||||||
| B77D | PUSH BC | |||||||||
| B77E | PUSH DE | |||||||||
| B77F | LD C,E | C=E. | ||||||||
| B780 | LD L,D | L=D. | ||||||||
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Set B, D and H to 00.
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| B781 | LD D,$00 | D=00. | ||||||||
| B783 | LD H,D | H=D. | ||||||||
| B784 | LD B,D | B=D. | ||||||||
| B785 | ADD HL,HL | HL*=10. | ||||||||
| B786 | ADD HL,HL | |||||||||
| B787 | ADD HL,HL | |||||||||
| B788 | ADD HL,HL | |||||||||
| B789 | LD DE,$81F8 | HL+=ScreenBuffer_Locations. | ||||||||
| B78C | ADD HL,DE | |||||||||
| B78D | PUSH HL | IX=HL. | ||||||||
| B78E | POP IX | |||||||||
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Look up the item graphics data.
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| B790 | LD L,A | Create an offset for the item graphics data in HL. | ||||||||
| B791 | LD H,$00 | |||||||||
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All items are 2x2 (so 02 bytes width * 10 bytes high).
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| B793 | ADD HL,HL | HL*=20. | ||||||||
| B794 | ADD HL,HL | |||||||||
| B795 | ADD HL,HL | |||||||||
| B796 | ADD HL,HL | |||||||||
| B797 | ADD HL,HL | |||||||||
| B798 | LD DE,$8378 | HL+=Graphics_Items. | ||||||||
| B79B | ADD HL,DE | |||||||||
| B79C | EX DE,HL | Switch the DE and HL registers. | ||||||||
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Draw the item graphic to the screen.
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| B79D | LD A,$10 | A=10 (height of items). | ||||||||
| DrawPossesions_Loop | B79F | LD L,(IX+$00) | HL=the screen address from IX. | |||||||
| B7A2 | LD H,(IX+$01) | |||||||||
| B7A5 | ADD HL,BC | HL+=BC. | ||||||||
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Move onto the next line down.
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| B7A6 | INC IX | Increment IX by two. | ||||||||
| B7A8 | INC IX | |||||||||
| B7AA | EX DE,HL | Switch the DE and HL registers. | ||||||||
| B7AB | LDI | Blit two bytes of item graphics to the screen buffer. | ||||||||
| B7AD | LDI | |||||||||
| B7AF | EX DE,HL | Switch the DE and HL registers. | ||||||||
| B7B0 | INC BC | Increment BC by two. | ||||||||
| B7B1 | INC BC | |||||||||
| B7B2 | DEC A | Decrease A by one. | ||||||||
| B7B3 | JR NZ,DrawPossesions_Loop | Jump to DrawPossesions_Loop until A is zero. | ||||||||
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Restore all the registers and return.
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| B7B5 | POP DE | Restore DE, BC, HL and AF from the stack. | ||||||||
| B7B6 | POP BC | |||||||||
| B7B7 | POP HL | |||||||||
| B7B8 | POP AF | |||||||||
| B7B9 | RET | Return. | ||||||||
| Prev: B715 | Up: Map | Next: B7BA |