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Routines |
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Used by the routines at DrawSpriteObject and DrawLargeSprite.
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| DrawSprite | 26870 | LD A,(HL) | Read the current screen data (row 1). | |||||||||
| 26871 | EXX | Switch to the shadow registers. | ||||||||||
| 26872 | LD (HL),A | Save row 1 background data to the sprite background buffer. | ||||||||||
| 26873 | INC HL | Move to the next position in the background buffer. | ||||||||||
| 26874 | EXX | Switch back to the normal registers. | ||||||||||
| 26875 | LD A,(BC) | Write sprite pixel data to row 1 of the screen buffer. | ||||||||||
| 26876 | LD (HL),A | |||||||||||
| 26877 | INC BC | Move to the next sprite data byte. | ||||||||||
| 26878 | INC H | Move to row 2 in the screen buffer. | ||||||||||
| 26879 | LD A,(BC) | Write sprite pixel data to row 2 of the screen buffer. | ||||||||||
| 26880 | LD (HL),A | |||||||||||
| 26881 | INC BC | Move to the next sprite data byte. | ||||||||||
| 26882 | INC H | Move to row 3 in the screen buffer. | ||||||||||
| 26883 | LD A,(HL) | Read the current screen data (row 3). | ||||||||||
| 26884 | EXX | Switch to the shadow registers. | ||||||||||
| 26885 | LD (HL),A | Save row 3 background data to the sprite background buffer. | ||||||||||
| 26886 | INC HL | Move to the next position in the background buffer. | ||||||||||
| 26887 | EXX | Switch back to the normal registers. | ||||||||||
| 26888 | LD A,(BC) | Write sprite pixel data to row 3 of the screen buffer. | ||||||||||
| 26889 | LD (HL),A | |||||||||||
| 26890 | INC BC | Move to the next sprite data byte. | ||||||||||
| 26891 | INC H | Move to row 4 in the screen buffer. | ||||||||||
| 26892 | LD A,(BC) | Write sprite pixel data to row 4 of the screen buffer. | ||||||||||
| 26893 | LD (HL),A | |||||||||||
| 26894 | INC BC | Move to the next sprite data byte. | ||||||||||
| 26895 | RET | Return. | ||||||||||
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