mirror of https://github.com/nmlgc/ReC98.git
57 lines
819 B
NASM
57 lines
819 B
NASM
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; master library - MSDOS - EMS
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;
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; Description:
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; EMSの残りメモリの総バイト数を得る
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;
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; Function/Procedures:
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; unsigned long ems_space( void ) ;
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;
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; Parameters:
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; none
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;
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; Returns:
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; 0 エラー
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; 以外 確保されているバイト数
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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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; MS-DOS
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;
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; Requiring Resources:
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; CPU: 8086
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; EMS: LIM EMS 3.2
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;
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; Notes:
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;
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;
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; Assembly Language Note:
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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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; 恋塚昭彦
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;
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; Revision History:
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; 93/ 7/16 Initial: emssize.asm/master.lib 0.20
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func EMS_SPACE ; ems_space() {
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mov AH,42h ; function: Get Unallocated Pages
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int 67h ; call EMM
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xor DX,DX
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cmp AH,0
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mov AX,DX
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jne short @@DAME
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mov DX,BX
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shr DX,1
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rcr AX,1
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shr DX,1
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rcr AX,1
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@@DAME:
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ret
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endfunc ; }
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