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Routines |
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Used by the routine at 39883.
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| 39933 | LD C,(IX+1) | Load C with character's x-coordinate (characters) | ||||||
| 39936 | LD B,(IX+2) | Load B with character's y-coordinate (characters) | ||||||
| 39939 | CALL 63219 | Load HL with attribute file address for coordinates (C, B) | ||||||
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The operand of the instruction at 39942 represents the character's attribute value. This is modified by the instruction at 39896.
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| 39942 | LD A,0 | Load A with attribute value | ||||||
| 39944 | LD B,4 | Load B with 4 (as characters are four characters high) | ||||||
| 39946 | PUSH BC | Store BC (B = remaining number of character rows to paint) | ||||||
| 39947 | LD (HL),A | Paint character's attribute at coordinates (C, B)... | ||||||
| 39948 | INC HL | ... | ||||||
| 39949 | LD (HL),A | ...and at coordinates (C + 1, B) | ||||||
| 39950 | LD BC,31 | Advance down one character row, and left one character to coordinates (C, B + 1)... | ||||||
| 39953 | ADD HL,BC | ... | ||||||
| 39954 | POP BC | Restore BC (B = remaining number of character rows to paint) | ||||||
| 39955 | DJNZ 39946 | Decrease remaining number of character rows to paint and loop back to 39946 | ||||||
| 39957 | RET | Return | ||||||
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