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Routines |
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Used by the routine at StepDisplayStateWhenParserClear.
Returns to the caller when bit 1 of E is clear, and also when the game has started and pictures are disabled. Otherwise it drops the return address and leaves through CopyBytes_ReportSuccess.
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| TestSourceBitOne | AFE8 | BIT 1,E | See whether bit 1 of the source is set. | |
| AFEA | RET Z | Return if that marker is clear. | ||
| AFEB | LD A,($A012) | Jump to TestSourceBitOne_DropReturn if the pictures-enabled byte at A012 is set. | ||
| AFEE | AND A | |||
| AFEF | JR NZ,TestSourceBitOne_DropReturn | |||
| AFF1 | LD A,($A01B) | Return if the initialised flag is set. | ||
| AFF4 | AND A | |||
| AFF5 | RET NZ | |||
| TestSourceBitOne_DropReturn | AFF6 | POP HL | Jump back to CopyBytes_ReportSuccess to return non-zero. | |
| AFF7 | JP CopyBytes_ReportSuccess | |||
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