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48 lines
1.4 KiB
48 lines
1.4 KiB
; -----------------------------------------------------------------------------
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; Copyright 2021 Dimitri Theulings
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;
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; This file is part of Tasty Basic.
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;
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; Tasty Basic is free software: you can redistribute it and/or modify
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; it under the terms of the GNU General Public License as published by
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; the Free Software Foundation, either version 3 of the License, or
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; (at your option) any later version.
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;
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; Tasty Basic is distributed in the hope that it will be useful,
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; but WITHOUT ANY WARRANTY; without even the implied warranty of
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; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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; GNU General Public License for more details.
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;
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; You should have received a copy of the GNU General Public License
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; along with Tasty Basic. If not, see <https://www.gnu.org/licenses/>.
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; -----------------------------------------------------------------------------
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; Tasty Basic is derived from earlier works by Li-Chen Wang, Peter Rauskolb,
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; and Doug Gabbard. Refer to the source code repository for details
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; <https://github.com/dimitrit/tastybasic/>.
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; -----------------------------------------------------------------------------
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#IFDEF CPM
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.ORG $0C00 ; ie. 3072 dec
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#ELSE
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.ORG $1400 ; ie. 5120 dec
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#ENDIF
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LD B,0
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LD A,D
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CALL COUNT
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LD A,E
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CALL COUNT
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LD E,B
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LD D,0
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RET
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COUNT:
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OR A
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RET Z
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BIT 0,A
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JR Z,NEXT
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INC B
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NEXT:
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SRL A
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JR COUNT
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.END
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