|
Routines |
| Prev: 63134 | Up: Map | Next: 63203 |
|
Used by the routine at 41271.
|
||||||||
| 63162 | PUSH HL | Store HL | ||||||
| 63163 | LD DE,28504 | Load DE with start address of UDG data for 2 × 2 blocks | ||||||
| 63166 | ADD A,A | Load HL with eight times UDG index... | ||||||
| 63167 | LD H,0 | ... | ||||||
| 63169 | LD L,A | ... | ||||||
| 63170 | ADD HL,HL | ... | ||||||
| 63171 | ADD HL,HL | ... | ||||||
| 63172 | ADD HL,DE | Add start address of UDG data for 2 × 2 blocks to HL as offset in HL | ||||||
| 63173 | EX DE,HL | Swap DE (now address of graphic data for required UDG) and HL (now start address of UDG data for 2 × 2 blocks) | ||||||
| 63174 | LD HL,(63018) | Load HL with (display file address of) bitmap virtual text cursor | ||||||
| 63177 | LD B,8 | Print UDG data at address in DE to display file address in HL... | ||||||
| 63179 | LD A,(DE) | ... | ||||||
| 63180 | LD (HL),A | ... | ||||||
| 63181 | INC DE | ... | ||||||
| 63182 | INC H | ... | ||||||
| 63183 | DJNZ 63179 | ... | ||||||
| 63185 | LD HL,(63018) | Load HL with (display file address of) bitmap virtual text cursor | ||||||
| 63188 | LD A,H | Load H into A... | ||||||
| 63189 | AND 31 | ...and cap at 31, to give screen third of interest (H=0-7, top third; H=8-15, middle third; H=16-23, bottom third) | ||||||
| 63191 | RRCA | Divide by eight to get character row within the third... | ||||||
| 63192 | RRCA | ... | ||||||
| 63193 | RRCA | ... | ||||||
| 63194 | ADD A,88 | Add 22,528 to HL to move into attribute section of video memory | ||||||
| 63196 | LD H,A | L still contains offset of x characters, so points to start of attributes for area where room name was just printed | ||||||
| 63197 | LD A,(23695) | Load A with attribute stored at 23695... | ||||||
| 63200 | LD (HL),A | ...and apply this to the attribute file address in HL | ||||||
| 63201 | POP HL | Restore HL | ||||||
| 63202 | RET | Return | ||||||
| Prev: 63134 | Up: Map | Next: 63203 |