mirror of https://github.com/nmlgc/ReC98.git
60 lines
906 B
NASM
60 lines
906 B
NASM
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; master library module
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;
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; Description:
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; ファイルの読み込み
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;
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; Functions/Procedures:
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; int dos_read( int fh, void far * buffer, unsigned len ) ;
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;
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; Parameters:
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;
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;
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; Returns:
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; int AccessDenied (cy=1) 失敗,読み込み禁止
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; InvalidHandle(cy=1) 失敗,ファイルハンドルが無効
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; else (cy=0) 成功,読み込んだバイト数
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;
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; Binding Target:
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; Microsoft-C / Turbo-C / Turbo Pascal
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;
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; Running Target:
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; PC-9801
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;
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; Requiring Resources:
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; CPU: 8086
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;
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; Notes:
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;
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;
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; Compiler/Assembler:
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; TASM 3.0
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; OPTASM 1.6
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;
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; Author:
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; 恋塚(恋塚昭彦)
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;
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; Revision History:
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; 93/ 3/17 Initial: master.lib
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;
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func DOS_READ
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push BP
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mov BP,SP
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@@fh = (RETSIZE+4)*2
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@@buf = (RETSIZE+2)*2
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@@len = (RETSIZE+1)*2
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push DS
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mov BX,[BP+@@fh]
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lds DX,[BP+@@buf]
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mov CX,[BP+@@len]
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mov AH,3fh
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int 21h
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pop DS
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jnc short @@SUCCESS
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neg AX ; cy=1
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@@SUCCESS:
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pop BP
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ret 8
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endfunc
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