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Routines |
| Prev: 38207 | Up: Map | Next: 38342 |
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Used by the routines at CopyBufferToScreen and 38207.
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| 38242 | PUSH HL | Stash HL on the stack. | ||
| 38243 | LD D,(HL) | D=*HL. | ||
| 38244 | INC HL | Increment HL by one. | ||
| 38245 | LD E,(HL) | E=*HL. | ||
| 38246 | EX DE,HL | Exchange the DE and HL registers. | ||
| 38247 | BIT 2,(HL) | Test bit 2 of *HL. | ||
| 38249 | JR Z,38309 | Jump to 38309 if HL is zero. | ||
| 38251 | RES 2,(HL) | Reset bit 2 of *HL. | ||
| 38253 | INC HL | Increment HL by two. | ||
| 38254 | INC HL | |||
| 38255 | LD E,(HL) | E=*HL. | ||
| 38256 | INC HL | Increment HL by one. | ||
| 38257 | LD D,(HL) | D=*HL. | ||
| 38258 | INC HL | Increment HL by one. | ||
| 38259 | LD A,(HL) | A=*HL. | ||
| 38260 | LD (39337),A | Write A to *39337. | ||
| 38263 | INC HL | Increment HL by one. | ||
| 38264 | PUSH HL | Stash HL on the stack. | ||
| 38265 | LD HL,39356 | HL=39356. | ||
| 38268 | EX DE,HL | Exchange the DE and HL registers. | ||
| 38269 | LD BC,8 | BC=0008. | ||
| 38272 | LDIR | LDIR. | ||
| 38274 | POP IX | Restore IX from the stack. | ||
| 38276 | LD A,(IX+0) | A=*IX+0. | ||
| 38279 | CP 0 | Compare A with 0. | ||
| 38281 | JR Z,38311 | Jump to 38311 if A is zero. | ||
| 38283 | LD H,A | H=A. | ||
| 38284 | LD L,(IX+1) | L=*IX+1. | ||
| 38287 | INC HL | Increment HL by two. | ||
| 38288 | INC HL | |||
| 38289 | LD E,(HL) | E=*HL. | ||
| 38290 | INC HL | Increment HL by one. | ||
| 38291 | LD D,(HL) | D=*HL. | ||
| 38292 | INC HL | Increment HL by two. | ||
| 38293 | INC HL | |||
| 38294 | PUSH HL | Stash HL on the stack. | ||
| 38295 | LD B,8 | B=8. | ||
| 38297 | LD HL,39356 | HL=39356. | ||
| 38300 | LD A,(DE) | A=*DE. | ||
| 38301 | OR (HL) | Set the bits from *HL. | ||
| 38302 | LD (HL),A | Write A to *HL. | ||
| 38303 | INC HL | Increment HL by one. | ||
| 38304 | INC DE | Increment DE by one. | ||
| 38305 | DJNZ 38300 | Decrease counter by one and loop back to 38300 until counter is zero. | ||
| 38307 | JR 38274 | Jump to 38274. | ||
| 38309 | POP HL | Restore HL from the stack. | ||
| 38310 | RET | Return. | ||
| 38311 | LD DE,39356 | DE=39356. | ||
| 38314 | POP HL | Restore HL from the stack. | ||
| 38315 | SRL H | Shift H right. | ||
| 38317 | RR L | Rotate L right. | ||
| 38319 | LD A,H | A=H. | ||
| 38320 | AND %11011011 | Keep only bits 0-1, 3-4, 6-7. | ||
| 38322 | OR %01000000 | Set bit 6. | ||
| 38324 | LD H,A | H=A. | ||
| 38325 | LD A,(39337) | A=*39337. | ||
| 38328 | LD (HL),A | Write A to *HL. | ||
| 38329 | SLA H | Shift H left three positions (with carry). | ||
| 38331 | SLA H | |||
| 38333 | SLA H | |||
| 38335 | RES 7,H | Reset bit 7 of H. | ||
| 38337 | EX DE,HL | Exchange the DE and HL registers. | ||
| 38338 | CALL CopyUDGToScreen | Call CopyUDGToScreen. | ||
| 38341 | RET | Return. | ||
| Prev: 38207 | Up: Map | Next: 38342 |