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Routines |
| Prev: B2C0 | Up: Map | Next: B322 |
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Used by the routine at B3F0.
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| B2EE | LD L,(IX+$05) | L=*IX+05. | ||
| B2F1 | LD H,(IX+$06) | H=*IX+06. | ||
| B2F4 | LD C,(IX+$04) | C=*IX+04. | ||
| B2F7 | LD B,(IX+$03) | B=*IX+03. | ||
| B2FA | PUSH HL | IX=HL (using the stack). | ||
| B2FB | POP IX | |||
| B2FD | SET 5,H | Set bit 5 of H. | ||
| B2FF | LD DE,$0020 | DE=0020. | ||
| B302 | PUSH HL | Stash HL, IX and BC on the stack. | ||
| B303 | PUSH IX | |||
| B305 | PUSH BC | |||
| B306 | LD A,(HL) | A=*HL. | ||
| B307 | BIT 6,A | Jump to B312 if bit 6 of A is set. | ||
| B309 | JR NZ,$B312 | |||
| B30B | AND %00111111 | Keep only bits 0-5. | ||
| B30D | OR %01000000 | Set bit 6. | ||
| B30F | LD (IX+$00),A | Write A to *IX+00. | ||
| B312 | ADD HL,DE | HL+=DE. | ||
| B313 | ADD IX,DE | IX+=DE. | ||
| B315 | DJNZ $B306 | Decrease counter by one and loop back to B306 until counter is zero. | ||
| B317 | POP BC | Restore BC, IX and HL from the stack. | ||
| B318 | POP IX | |||
| B31A | POP HL | |||
| B31B | INC IX | Increment IX by one. | ||
| B31D | INC HL | Increment HL by one. | ||
| B31E | DEC C | Decrease C by one. | ||
| B31F | JR NZ,$B2FF | Jump to B2FF. | ||
| B321 | RET | Return. | ||
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