mirror of https://github.com/nmlgc/ReC98.git
72 lines
1.0 KiB
NASM
72 lines
1.0 KiB
NASM
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; master library - BGM
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;
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; Description:
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;
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;
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; Function/Procedures:
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; void _bgm_bell_org(void);
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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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;
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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-9801V
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;
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; Requiring Resources:
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; CPU: V30
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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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; femy(淀 文武) : オリジナル・C言語版
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; steelman(千野 裕司) : アセンブリ言語版
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; 恋塚
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;
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; Revision History:
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; 93/12/19 Initial: b_b_org.asm / master.lib 0.22 <- bgmlibs.lib 1.12
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; 94/ 4/11 [M0.23] AT互換機対応
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func _BGM_BELL_ORG
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test Machine_State,10h
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jnz short @@PCAT
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@@PC98:
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xor AX,AX
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mov ES,AX
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test byte ptr ES:[0501H],80h
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mov BX,TVAL8ORG/2
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jnz short @@CLOCK8MHZ
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mov BX,TVAL10ORG/2
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@@CLOCK8MHZ:
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;タイマカウント値設定
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mov DX,BEEP_CNT
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mov AL,BL
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out DX,AL ; 98
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mov AL,BH
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out DX,AL ; 98
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;ビープOFF
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mov AL,BEEP_OFF
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out BEEP_SW,AL ; 98
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ret
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@@PCAT:
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;ビープOFF
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in AL,61h
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and AL,not 3
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out 61h,AL ; AT
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ret
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endfunc
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