4Data Telesoftware Adaptor Issue 1.2 | Routines |
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Used by the routine at init_mosaics.
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generate_mosaics | 0EC9 | LD A,B | Copy character code into A. | |
0ECA | LD D,$00 | If bit 0 of character code is 1 set D to b00111000 else set D to b00000000. | ||
0ECC | RRA | |||
0ECD | JR NC,generate_mosaics_0 | |||
0ECF | LD D,$38 | |||
generate_mosaics_0 | 0ED1 | RRA | If bit 1 of character code is 1 call set_right_bits to set bits 0-2 of D. | |
0ED2 | JR NC,generate_mosaics_1 | |||
0ED4 | CALL set_right_bits | |||
generate_mosaics_1 | 0ED7 | CALL write_top_sixels | Call write_top_sixels to write D to rows 0-2 of the font data. | |
0EDA | RRA | If bit 2 of character code is 1 set D to b00111000 else set D to b00000000. | ||
0EDB | LD D,$00 | |||
0EDD | JR NC,generate_mosaics_2 | |||
0EDF | LD D,$38 | |||
generate_mosaics_2 | 0EE1 | RRA | If bit 3 of character code is 1 call set_right_bits to set bits 0-2 of D. | |
0EE2 | JR NC,generate_mosaics_3 | |||
0EE4 | CALL set_right_bits | |||
generate_mosaics_3 | 0EE7 | LD (HL),D | Write D to to rows 3 and 4 of the font data. | |
0EE8 | INC HL | |||
0EE9 | LD (HL),D | |||
0EEA | INC HL | |||
0EEB | LD D,$00 | If bit 4 of character code is 1 set D to b00111000 else set D to b00000000. | ||
0EED | RRA | |||
0EEE | JR NC,generate_mosaics_4 | |||
0EF0 | LD D,$38 | |||
generate_mosaics_4 | 0EF2 | RRA | If bit 6 of character code is 1 call set_right_bits to set bits 0-2 of D. | |
0EF3 | RRA | |||
0EF4 | JR NC,generate_mosaics_5 | |||
0EF6 | CALL set_right_bits | |||
generate_mosaics_5 | 0EF9 | CALL write_top_sixels | Call write_top_sixels to write D to rows 5-7 of the font data. | |
0EFC | RET | Return with address of font data for next character in HL. |
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