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Routines |
| Prev: DB2E | Up: Map | Next: DBE5 |
| DB7E | LD A,($E75D) | A=*E75D. | ||
| DB81 | DEC A | Decrease A by one. | ||
| DB82 | LD ($E75F),A | Write A to *E75F. | ||
| DB85 | LD A,($E761) | B=*E761. | ||
| DB88 | LD B,A | |||
| DB89 | PUSH BC | Stash BC on the stack. | ||
| DB8A | LD A,($E75E) | A=*E75E. | ||
| DB8D | ADD A,$02 | A+=02. | ||
| DB8F | LD ($E760),A | Write A to *E760. | ||
| DB92 | LD B,$04 | B=04. | ||
| DB94 | PUSH BC | Stash BC on the stack. | ||
| DB95 | LD A,($E75F) | B=*E75F. | ||
| DB98 | LD B,A | |||
| DB99 | LD A,($E760) | C=*E760. | ||
| DB9C | LD C,A | |||
| DB9D | CALL Calculate_ScreenBlockAddress | Call Calculate_ScreenBlockAddress. | ||
| DBA0 | LD A,$08 | A=08. | ||
| DBA2 | LD BC,$0004 | BC=0004. | ||
| DBA5 | PUSH HL | Stash HL on the stack. | ||
| DBA6 | POP DE | Restore DE from the stack. | ||
| DBA7 | INC DE | Increment DE by one. | ||
| DBA8 | PUSH HL | Stash HL and HL on the stack. | ||
| DBA9 | PUSH HL | |||
| DBAA | LDDR | LDDR. | ||
| DBAC | INC HL | Increment HL by one. | ||
| DBAD | LD (HL),C | Write C to *HL. | ||
| DBAE | POP HL | Restore HL from the stack. | ||
| DBAF | INC H | Increment H by one. | ||
| DBB0 | PUSH HL | Stash HL on the stack. | ||
| DBB1 | POP DE | Restore DE from the stack. | ||
| DBB2 | INC DE | Increment DE by one. | ||
| DBB3 | LD BC,$0004 | BC=0004. | ||
| DBB6 | DEC A | Decrease A by one. | ||
| DBB7 | JP NZ,$DBA9 | Jump to DBA9 if A is not zero. | ||
| DBBA | POP HL | Restore HL from the stack. | ||
| DBBB | CALL Calculate_AttributeAddress | Call Calculate_AttributeAddress. | ||
| DBBE | PUSH DE | Stash DE on the stack. | ||
| DBBF | POP HL | Restore HL from the stack. | ||
| DBC0 | INC DE | Increment DE by one. | ||
| DBC1 | LD BC,$0005 | BC=0005. | ||
| DBC4 | LDDR | LDDR. | ||
| DBC6 | LD A,$47 | A=47. | ||
| DBC8 | INC DE | Increment DE by one. | ||
| DBC9 | LD (DE),A | Write A to *DE. | ||
| DBCA | LD HL,$E75F | HL=E75F. | ||
| DBCD | INC (HL) | Increment *HL by one. | ||
| DBCE | POP BC | Restore BC from the stack. | ||
| DBCF | DJNZ $DB94 | Decrease counter by one and loop back to DB94 until counter is zero. | ||
| DBD1 | POP BC | Restore BC from the stack. | ||
| DBD2 | PUSH BC | Stash BC on the stack. | ||
| DBD3 | CALL $DD52 | Call DD52. | ||
| DBD6 | LD A,($E75D) | A=*E75D. | ||
| DBD9 | DEC A | Decrease A by one. | ||
| DBDA | LD ($E75F),A | Write A to *E75F. | ||
| DBDD | LD HL,$E75E | HL=E75E. | ||
| DBE0 | INC (HL) | Increment *HL by one. | ||
| DBE1 | POP BC | Restore BC from the stack. | ||
| DBE2 | DJNZ $DB89 | Decrease counter by one and loop back to DB89 until counter is zero. | ||
| DBE4 | RET | Return. | ||
| Prev: DB2E | Up: Map | Next: DBE5 |