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Routines |
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Set PAPER colour parameter handler. Called on the byte immediately following a 11 (PAPER) control code. Masks the parameter to the lower three bits (colour 00–07) and writes it into the PAPER bits (3–5) of the attribute byte at PrintState_Attr.
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| PrintHandler_Paper | 8E3D | LD B,$08 | B=08 (mask limit for PAPER colour range 00–07). | |
| 8E3F | CALL PrintHandler_MaskParam | Call PrintHandler_MaskParam to reset PrintState_Handler and mask B to the colour value. | ||
| 8E42 | LD A,($8004) | A=*PrintState_Attr (current attribute byte). | ||
| 8E45 | AND %11000111 | Clear the PAPER bits (C7 = keep INK, BRIGHT, FLASH). | ||
| 8E47 | SLA B | Shift B left three positions to move the colour into bits 3–5. | ||
| 8E49 | SLA B | |||
| 8E4B | SLA B | |||
| 8E4D | OR B | Write the new PAPER colour into bits 3–5. | ||
| 8E4E | LD ($8004),A | Write the updated attribute byte back to *PrintState_Attr. | ||
| 8E51 | RET | Return. | ||
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