ReC98/libs/master.lib/graph_pi_free.asm

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NASM
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; master library - Pi - free
;
; Description:
; 読み込まれたPi情報を開放する
;
; Function/Procedures:
; void graph_pi_free( PiHeader * header, void far * image ) ;
;
; Parameters:
; header すでに画像(とコメント)が読み込まれたPiヘッダ
; image 画像データの先頭アドレス(NULLなら無視)
;
; Returns:
; none
;
; Binding Target:
; Microsoft-C / Turbo-C / Turbo Pascal
;
; Running Target:
; 8086
;
; Requiring Resources:
; CPU: 8086
;
; Notes:
;
;
; Assembly Language Note:
;
;
; Compiler/Assembler:
; TASM 3.0
; OPTASM 1.6
;
; Author:
; 恋塚昭彦
;
; Revision History:
; 93/11/24 Initial: grppifre.asm/master.lib 0.21
PiHeader STRUC
comment_offset dw ?
comment_segment dw ?
commentlen dw ?
_mode db ?
_n db ?
_m db ?
_plane db ?
_machine db 4 dup (?)
maexlen dw ?
maex_offset dw ?
maex_segment dw ?
_xsize dw ?
_ysize dw ?
_palette db 48 dup (?)
PiHeader ENDS
func GRAPH_PI_FREE ; graph_pi_free() {
push BP
mov BP,SP
; 引数
header = (RETSIZE+3)*2
image_segment = (RETSIZE+2)*2
image_offset = (RETSIZE+1)*2
xor CX,CX
s_ <push DS>
s_ <pop ES>
_les BX,[BP+header]
mov AX,(PiHeader ptr ES:[BX]).comment_segment
test AX,AX
jz short NO_COMMENT
push AX
nopcall HMEM_FREE
mov (PiHeader ptr ES:[BX]).commentlen,CX
mov (PiHeader ptr ES:[BX]).comment_segment,CX
mov (PiHeader ptr ES:[BX]).comment_offset,CX
NO_COMMENT:
mov AX,(PiHeader ptr ES:[BX]).maex_segment
test AX,AX
jz short NO_MACHINEINFO
push AX
nopcall HMEM_FREE
mov (PiHeader ptr ES:[BX]).maexlen,CX
mov (PiHeader ptr ES:[BX]).maex_segment,CX
mov (PiHeader ptr ES:[BX]).maex_offset,CX
NO_MACHINEINFO:
mov AX,[BP+image_segment]
test AX,AX
jz short NO_IMAGE
push AX
nopcall HMEM_FREE
NO_IMAGE:
pop BP
ret (DATASIZE+2)*2
endfunc ; }