mirror of
https://github.com/Tolik-Trek/RAM-Drive.git
synced 2026-06-15 01:11:32 +03:00
575 lines
12 KiB
NASM
575 lines
12 KiB
NASM
; <20>¥à¥¤ â ¡«¨æ¥© ¤¨áª ¢ë¢¥á⨠áâப㠮 à §¬¥à¥ ᢮¡. á¨á⥬®© ¯ ¬ïâ¨
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;
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DEFINE App_EXE_Version 1
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INCLUDE 'shared_includes/constants/sp2000.inc'
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INCLUDE 'shared_includes/constants/BIOS_equ.inc'
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INCLUDE 'shared_includes/constants/DSS_EQU.inc'
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INCLUDE 'shared_includes/macroses/macros.z80'
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; ‚¥àá¨ï ¯à®£à ¬¬ë
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major_version equ 1
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minor_version equ 12
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org_addr EQU SLOT1.MEM_ADDR + #100 + CLP_Buffer
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code_addr EQU ramdrv
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program_start EQU ramdrv
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stack_point EQU #C000
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Loader_length EQU 0
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; org 4100h
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; db "EX" ; exe ID
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; db "E" ; exe ⨯
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; db 0 ; exe ¢¥àá¨ï
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; dw 512 ; ¬«. ᬥé. ª®¤
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; dw 0 ; áâ. ᬥé. ª®¤
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; dw 0 ; end-beg, ¯¥à¢¨çë© § £àã§ç¨ª
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; dw 0,0 ; १¥à¢
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; dw 0 ;
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; dw start ; ¤à¥á § £à㧪¨ ª®¤
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; dw start ; ¤à¥á ¯¥à¥¤ ç¨ ã¯à ¢«¥¨ï
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; dw 0C000h ; ¤à¥á á⥪
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; ds 490 ; १¥à¢
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EXE_ORG org_addr
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ramdrv: ; ¯ àᨣ ª®¬-áâப¨
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push ix
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ld hl,title ; â¨â« ¯à®£à ¬¬ë
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ld c,5Ch ; ¢ë¢¥á⨠áâபã
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rst 10h
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; ®ç¨áâ¨âì ¡ãä¥à ª« ¢ë
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ld bc,3135h
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rst 10h
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pop de
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ld hl,help ; ¢ë¢®¤ ¯®¬®é¨
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ld a,(de)
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or a
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jr z,.error
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inc de ; ¯¥à¥©â¨ ª®¬-áâபã
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ld a,(de)
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cp " "
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jr z,$-4
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ld a,(de) ; æ¨äà
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or a
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jr z,.bad_option
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call dec_to_word ; char -> int
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ld (.kbytes+1),hl ; à §¬¥à ¤¨áª ¢ kB
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jr nc,.ok_option
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.bad_option: ld hl,err_value ; "Invalid value"
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jr .error
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;
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.ok_option: ld hl,(.kbytes+1) ; à §¬¥à ¤¨áª ¢ kB
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ld de,64 ; ¬¨. à §¬¥à ¤¨áª ¢ kB
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sbc hl,de
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jr nc,$+5
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ld (.kbytes+1),de
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; ᮧ¤ âì á¥à¨©ë© ®¬¥à ¤¨áª
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ld c,21h ; ¯®«ãç¨âì ¢à¥¬ï
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rst 10h
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; hl=ç áë/¬¨ãâë, b=ᥪã¤ë
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ld a,r ; ¤¨ ¬¨ç. áç¥â稪 ¤®«¥© ᥪã¤ë
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cp 99+1
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jr c,.rand
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ld a,99
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.rand: ld c,a ; ¤®«¨ ᥪã¤ë
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ld de,07C7h
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add hl,de
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ld (msdos+39),hl ; sn_low
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ld hl,0707h
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add hl,bc
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ld (msdos+41),hl ; sn_high
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; ¯®«ãç¨âì ¨¤¥â¨ä. ¡«®ª , § 祮£® RAM-¤¨áª
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di
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ld bc,00CEh ; á=®¬¥à äãªæ¨¨
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.loop: ld a,b ; ®¬¥à RAM-¤¨áª 0..15, (®â E: ¤® T:)
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push bc
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rst 08h
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pop bc
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or a
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jr z,.free ; ¡«®ª ¥ § ç¥
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inc b
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ld a,b
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cp 15+1 ; ®¬¥à RAM-¤¨áª
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jr nz,.loop
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; ¢ë室 § ¯à¥¤¥«ë 0..15 ¤¨ ¯ §®
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ld hl,no_free_ramdisk ; "No free RAM-DISK"
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.error: ld c,5Ch ; ¢ë¢®¤ áâப¨
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rst 10h
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ld b,1 ; ª®¤ ®è¨¡ª¨
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jp .abort ; ¢ë室 ¢ „Ž‘
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.free: ld a,b
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ld (.ram+1),a ; ®¬¥à ram-¤¨áª
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.kbytes: ld hl,0 ; à §¬¥à ¢ kB
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call get_sect_fat ; à áç¨â âì ç¨á«® ᥪâ®à®¢ FAT
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ld (msdos+22),hl ; ï祩ª "ᥪâ®à®¢ FAT"
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ld hl,not_enough ; "No enough memory for create RAM-DISK"
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jr c,.error ; ᫨誮¬ ¡®«ì让 ®¡ê¥¬ (> 3984 kB)
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;
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.hsize: ld hl,0 ; áâ.à §àï¤
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.lsize: ld bc,0
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call get_mem_pages ; ¢ë¤¥«¨âì ¯ ¬ïâì
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ld hl,not_enough ; "No enough memory for create RAM-DISK"
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jr c,.error ; ¥â ¯ ¬ïâ¨
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ld (.id+1),a ; ¨¤¥â¨ä. ¡«®ª
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; ᮧ¤ âì ᯨ᮪ áâà ¨æ
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ld hl,list_pages ; ¡ãä¥à ᯨáª
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ld c,0C5h
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rst 08h
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; § ç¨âì ¡«®ª ¯ ¬ï⨠RAM-¤¨áªã
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.ram: ld a,0 ; ®¬¥à RAM-¤¨áª 0..15 (®â E: ¤® T:)
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.id: ld b,-1 ; ¨¤¥â¨ä. ¡«®ª
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ld c,0C9h
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rst 08h
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;
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in a,(0C2h)
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ld (.port2+1),a ; á®åà. ¯®àâ Page2
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in a,(0E2h)
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ld (.port3+1),a ; á®åà. ¯®àâ Page3
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; ¢ª«. ç «ìë¥ 2 áâà. ¡«®ª ¢ #8000..#FFFF
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ld hl,list_pages ; ᯨ᮪ áâà ¨æ ¡«®ª
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ld a,(hl)
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inc hl
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out (0C2h),a ; 1-ï áâà. ¡«®ª
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ld a,(hl)
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out (0E2h),a ; 2-ï áâà. ¡«®ª
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; ®ç¨áâ¨âì Boot+FAT+RootDir
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ld hl,8000h ; ç «® 2-© áâà ¨æë
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ld e,l
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ld d,h
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inc de
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ld bc,8000h-1 ; à §¬¥à ®¡« áâ¨
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ld (hl),l
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ldir
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; ¯¥à¥¡à®á¨âì BPB ¢ 1-© ᥪâ®à (boot)
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ld hl,msdos ; ®âªã¤
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ld de,8000h ; ªã¤
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ld bc,len_BPB
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ldir
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dec c
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ld hl,8000h+510
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ld (hl),55h ; ᨣ âãà
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inc hl
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ld (hl),0AAh ;
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inc hl
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; FAT
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ld (hl),0FAh ; í«. ¤¨áª
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inc hl
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ld (hl),c ; FF
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inc hl
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ld (hl),c ; FF
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;
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.port2: ld a,-1
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out (0C2h),a ; ¢®ááâ. ¯®àâ Page2
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.port3: ld a,-1
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out (0E2h),a ; ¢®ááâ. ¯®àâ Page3
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;
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call environment ; ¯®¨áª ¯¥à¥¬¥®© ®ªà㦥¨ï
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; à §¬¥à ᢮¡. á¨áâ. ¯ ¬ïâ¨
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ld c,3Ch ; ¨ä ® ¯ ¬ïâ¨
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rst 10h
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; bc=ç¨á«® ᢮¡. ¡ ®ª
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ld l,c
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ld h,b
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inc hl ; + ¡ ª , § ¨¬ ¥¬ ï á ¬®© RAMDRV
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add hl,hl ;1+1=2
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add hl,hl ;2+2=4
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add hl,hl ;4+4=8
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add hl,hl ;8+8=16
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ld de,freemem ; ªã¤
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call decim
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;---------------------------
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; ¢¥áì ®¡ê¥¬ ¤¨áª
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ld hl,(.kbytes+1) ; à §¬¥à ¢ kB
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ld de,total_size ; ªã¤
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call decim ; § ¯®«¥¨¥ ¨ä®-â ¡«¨æë
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; ¢ëç¨á«¨âì ¤®áâã¯ë© à §¬¥à ¤¨áª
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ld hl,(msdos+19) ; ¢á¥å ᥪâ®à®¢ ¤¨áª¥
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ld de,(msdos+22) ; ᥪâ®à®¢ FAT
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ld bc,33 ; 1+32 (Boot + RootDirSect)
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and a
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sbc hl,bc
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and a
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sbc hl,de ; hl=ç¨á«® ¤®áâ. ᥪâ®à®¢
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; CountSect * 512 = SizeBytes
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push hl
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pop ix
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ld b,9
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ld hl,0
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.calc: add ix,ix ; ¬«.à §àï¤
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adc hl,hl ; áâ.à §àï¤
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djnz .calc
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push ix
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pop bc
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ld de,1024 ; ¤¥«¨â¥«ì
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call divide
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; hl=ç¨á«® kB
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ld de,avail_size ; ¡ãä¥à
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call decim ; § ¯®«¥¨¥ ¨ä®-â ¡«¨æë
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; 㧠âì ¢¥àá¨î „Ž‘
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ld c,0
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rst 10h
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ld hl,013Ch ; 1.60
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and a
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sbc hl,de
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jr nc,.old_ver ; =< 1.60
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; ¯¥à¥áª . ¤¥¢ ©áë á¨á⥬ë
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ld c,8
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rst 10h
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xor a
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ld (mess_),a ; ¥ ¢ë¢®¤¨âì "Now reboot, ..."
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; ¢ë¢®¤ ¨äë ¯® ᮧ¤ ®¬ã ¤¨áªã
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ld hl,ram_created ; info-â ¡«¨æ
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ld c,5Ch ; ¢ë¢®¤ áâப¨
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rst 10h
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jr .backcode
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; ¢ë¢®¤ ¨äë ¯® ᮧ¤ ®¬ã ¤¨áªã
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.old_ver: ld hl,ram_created ; info-â ¡«¨æ
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ld c,5Ch ; ¢ë¢®¤ áâப¨
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rst 10h
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; § ¤¥à¦ª ¢ 4 ᥪã¤ë
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ei
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ld b,4 ; 4 ᥪã¤ë
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.wait: push bc
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ld c,31h ; ª®¤ ª« ¢¨è¨ ¡¥§ ®¦¨¤ ¨ï
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rst 10h
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pop bc
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jr nz,.exit
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ld a,49 ; 1/50 ᥪã¤ë
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halt
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dec a
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jr nz,$-2
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djnz .wait
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; á®äâ®¢ë© à¥¡ãâ
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xor a
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ld bc,02FDh
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rst 08h
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.exit: ld hl,aborting
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ld c,5Ch ; ¢ë¢®¤ áâப¨
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rst 10h
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.backcode: ld b,0 ; ¢®§¢à. ª®¤
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.abort: ei
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push bc
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; ®ç¨áâ¨âì ¡ãä¥à ª« ¢ë
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ld bc,3135h
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rst 10h
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pop bc
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; ¢ë室 ¢ „Ž‘
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ld c,41h
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rst 10h
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di
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halt
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;+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
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; <20> áç¨â âì ¨ ¢ë¤¥«¨âì ¥®¡å®¤¨¬®¥ ç¨á«® áâà ¨æ
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;
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; ¢å®¤: hl=áâ.à §àï¤ ¡ ©â®¢
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; bc=¬«.à §àï¤
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; ¢ë室: CF-®è¨¡ª ¢ë¤¥«¥¨ï ¯ ¬ïâ¨
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;+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
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get_mem_pages: ld de,4000h ; ¤¥«¨â¥«ì (à §¬¥à áâà ¨æë)
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xor a
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scf
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.loc1: rr d
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rr e
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jr c,.loc2
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rr h
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rr l
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rr b
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rr c
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jr nc,.loc1
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ld a,1
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jr .loc1
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;
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.loc2: or a
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jr z,.loc3
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inc bc
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.loc3: xor a
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cp b
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scf
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ret nz
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; ¢ë¤¥«¨âì ¡«®ª ¯ ¬ïâ¨
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ld b,c ; b=ç¨á«® áâà ¨æ
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ld c,0C2h ; ¢ë¤¥«¨âì ¡«®ª ¯ ¬ïâ¨
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rst 08h
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ret
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;+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
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; <20> áç¨â âì ç¨á«® ᥪâ®à®¢ ¤«ï FAT
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;
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; ¢å®¤: hl=ç¨á«® ª¨«®¡ ©â
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; ¢ë室: hl=ç¨á«® ᥪâ®à®¢
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; CF - ®è¨¡ª
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;+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
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get_sect_fat: push hl
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ld bc,3984+1 ; Max kB ¤«ï 31-£® ᥪâ®à FAT + 1
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and a
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sbc hl,bc
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pop ix
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ccf
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ret c
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; SizeKBytes * 1024 = SizeBytes
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ld b,10
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ld hl,0
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.loop: add ix,ix ; ¬«.à §àï¤
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adc hl,hl ; áâ.à §àï¤
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djnz .loop
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push ix
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pop bc
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ld (ramdrv.hsize+1),hl
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ld (ramdrv.lsize+1),bc
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; ¢ëç¨á«¨âì à §¬¥à FAT ¢ ᥪâ®à å
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call get_num_sectors ; SizeBytes / 512 = Total sectors
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ld (msdos+19),hl ; ¢á¥å ᥪâ®à®¢ ¤¨áª¥
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ld bc,33 ; 1+32 (Boot + RootDirSect)
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sbc hl,bc
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add hl,hl
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ld c,l
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ld b,h
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ld hl,0
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;jr get_num_sectors ; / 512 = Sectors per FAT
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;+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
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; <20> áç¨â âì ç¨á«® ᥪâ®à®¢
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; ¢å®¤: hl=áâ.à §àï¤ ¡ ©â®¢
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; bc=¬«.à §àï¤
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; ¢ë室: hl=ç¨á«® ᥪâ®à®¢
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;+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
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get_num_sectors:ld de,512 ; ¤¥«¨â¥«ì (à §¬¥à ᥪâ®à )
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divide: xor a
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scf
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.loc1: rr d
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rr e
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jr c,.loc2
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rr h
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rr l
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rr b
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rr c
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jr nc,.loc1
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ld a,1
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jr .loc1
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;
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.loc2: or a
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jr z,.loc3
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inc bc
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.loc3: ld l,c
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ld h,b
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ret
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;-----------------------------------------------------------
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; Š®¢¥àâ¨à®¢ âì ¤¥áïâ. ç¨á«® (¬ ªá. 4 æ¨äàë) ¢ á«®¢®.
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; ¢å®¤: de=¡ãä¥à
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; ¢ë室: hl=ç¨á«®
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; "Carry" - ®è¨¡ª
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;-----------------------------------------------------------
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dec_to_word: ld hl,0
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ld b,4 ; ¬ ªá. 4 æ¨äàë
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.loop: ld a,(de) ; æ¨äà
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or a
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ret z
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call .isdigit
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ret c ; ®è¨¡ª
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push bc
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call .dec_digit
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pop bc
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inc de
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djnz .loop
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ld a,(de)
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or a ; ¡ë« ®¤¨ ¯ à ¬¥âà ?
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ret z
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ld a,-1
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scf
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ret
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; ª®¢¥àâ. æ¨äàã
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.dec_digit: ld c,l
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ld b,h
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add hl,hl ;1+1=2
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add hl,hl ;2+2=4
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add hl,bc ;4+1=5
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add hl,hl ;5+5=10
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sub "0"
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ld c,a
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ld b,0
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add hl,bc
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ret
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; ’¥áâ æ¨äàã
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; ¢ëå: Carry - ¥ æ¨äà
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.isdigit: cp "0"
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ret c
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cp "9"+1
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ccf
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ret
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;-------------------------------------------------
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; <20> ¡®â á ¯¥à¥¬¥®© ®ªà㦥¨ï ¯à®£à ¬¬ë
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; ¨ ®âá«¥¦¨¢ ¨¥ ¡ãª¢ë ¤¨áª .
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;-------------------------------------------------
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environment: ld bc,0146h ; ¯®«ãç¨âì ¯¥à¥¬¥ãî ®ªà㦥¨ï
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ld hl,name ; ¨¬ï ¯¥à¥¬¥®©
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ld de,title ; ¡ãä¥à ¤«ï § ç¥¨ï ¯¥à¥¬¥®©
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rst 10h
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ret c ; ®è¨¡ª
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or a
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jr z,.not_found ; ¯¥à¥¬¥ ï ¥ ©¤¥
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ld a,(title)
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cp "Z"
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ret z
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inc a ; ++¡ãª¢ ¤¨áª
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jr .next_letter
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;
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.not_found: ld c,2 ; ¯®«ãç¨âì ⥪ã騩 ®¬¥à ¤¨áª
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rst 10h
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ld c,1 ; ᬥ ¤¨áª
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rst 10h
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add a,"A"
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.next_letter: ld (disk),a ; "lastdrive"
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ld (disk1),a
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;
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ld bc,0246h ; ãáâ. ¯¥à¥¬¥ãî ®ªà㦥¨ï
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ld hl,name1 ; ¨¬ï ¯¥à¥¬¥ ï=§ 票¥
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rst 10h
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ret
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;-------------------------------------------------
|
||
; <20>¥à¥¢®¤ ç¨á« ¢ ᨬ¢®«ìë© ¤¥áïâ¨çë© ä®à¬ â
|
||
; ¢å®¤: hl=ç¨á«®
|
||
; de=¡ãä¥à ç¨á«
|
||
;-------------------------------------------------
|
||
decim: ld iy,.tmp
|
||
res 7,(iy+0)
|
||
ld bc,1000 ;1.000 (¬ ªá. 9999)
|
||
call .getN16
|
||
ld bc,100 ;100
|
||
call .getN16
|
||
ld bc,10 ;10
|
||
call .getN16
|
||
ld a,l
|
||
add a,"0"
|
||
ld (de),a
|
||
ret
|
||
;
|
||
.tmp: db 0
|
||
|
||
.getN16: ld a,2Fh
|
||
or a
|
||
inc a
|
||
sbc hl,bc
|
||
jr nc,$-3
|
||
add hl,bc
|
||
cp "0"
|
||
jr z,$+6
|
||
set 7,(iy+0)
|
||
bit 7,(iy+0)
|
||
jr nz,$+4
|
||
ld a," " ; ¢¥¤. ¯à®¡¥«ë
|
||
ld (de),a
|
||
inc de
|
||
ret
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
name: db "LASTDRV",0 ; ¨¬ï ¯¥à¥¬¥®©
|
||
name1: db "LASTDRV="
|
||
disk: db "C",0
|
||
|
||
|
||
|
||
title: db 0Dh,0Ah,"RAMdrive Version ",major_version + "0","."
|
||
db (minor_version / 10) + "0",(minor_version % 10) + "0"
|
||
db ", Copyright (c) 2005-2007 by Vasil Ivanov."
|
||
db 0Dh,0Ah,0Ah,0
|
||
|
||
|
||
ram_created: db "RAM-disk "
|
||
disk1: db "C: successfully created",0Dh,0Ah
|
||
db "Free system memory: "
|
||
freemem: db "#### kB",0Dh,0Ah,0Ah
|
||
;
|
||
db "Disk size: "
|
||
total_size: db "#### kB",0Dh,0Ah ; à §¬¥à ¤¨áª
|
||
db "Available space: "
|
||
avail_size: db "#### kB",0Dh,0Ah ; à §¬¥à ¤¨áª
|
||
db "Directory entries: 512",0Dh,0Ah ; § ¯¨á¥© ¢ ª®à¥
|
||
db "Sector size: 512 bytes",0Dh,0Ah ; ¡ ©â ᥪâ®à
|
||
db "Allocation unit: 1 sector",0Dh,0Ah,0Ah ; ᥪâ®à®¢ ª« áâ¥à
|
||
mess_: db "Now reboot, please wait (4 sec.) ...",0
|
||
|
||
|
||
|
||
|
||
aborting: db " Aborting",0Dh,0Ah,0Ah
|
||
db "Press ",34,"Ctrl+Alt+Del",34," for rebooting computer..."
|
||
db 0Dh,0Ah,0Ah,0Ah,0
|
||
|
||
no_free_ramdisk:db "No free RAM-DISK !",0Dh,0Ah,0Ah,0
|
||
|
||
not_enough: db "Insufficient memory for create RAM-DISK !",0Dh,0Ah,0Ah,0
|
||
|
||
|
||
; ¥ ¢¥à®¥ § 票¥
|
||
err_value: db "Invalid value",0Dh,0Ah,0Ah,0
|
||
|
||
help: db "Syntax: ramdrv.exe ##",0Dh,0Ah,0Ah
|
||
db "where: ## - disk size in kB (64 minimum).",0Dh,0Ah,0Ah,0
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
; MS-DOS ¤ ë¥
|
||
msdos: db 0EBh,3Ch,90h ; 3 ¡ ©â , ª®¤ ¯¥à¥å®¤ § £àã§ç¨ª
|
||
db "RDV 1.21" ; 8 ¡ ©â, OEM ID
|
||
; BPB, 17 ¡ ©â
|
||
dw 512 ;+11 ; ¡ ©â®¢ ᥪâ®à
|
||
db 1 ; 1, ᥪâ®à®¢ ª« áâ¥à
|
||
dw 1 ; § १¥à¢. ᥪâ®à®¢
|
||
db 1 ; ç¨á«® ª®¯¨© FAT-®¢
|
||
dw 512 ; § ¯¨á¥© ¢ ª®à¥
|
||
dw 34 ;+19 ; # ¢á¥å ᥪâ®à®¢ ¤¨áª¥
|
||
db 0FAh ; ¡ ©â ä®à¬ â
|
||
dw 1 ;+22 ; # ᥪâ®à®¢ FAT
|
||
dw 1 ; ᥪâ®à®¢ áâ®à®ã
|
||
dw 1 ; ª®«-¢® áâ®à® ¤¨áª
|
||
; Extended boot-record
|
||
dw 0,0 ; áªàëâëå ᥪâ®à®¢
|
||
dw 0,0 ; ¢á¥å ᥪâ®à®¢ ¤¨áª¥
|
||
dw 80h ; 0x00 䨧. ®¬¥à ¤¨áª
|
||
db 29h ; ᨣ âãà à áè. boot-§ ¯¨á¨
|
||
dw 96C2h,2D3Ah ;+39..+41 ; á¥à¨©ë© ®¬¥à ¤¨áª 2D3A:96C2
|
||
db "NO NAME " ;+43 ; 11 ¡ ©â, ¬¥âª ram-¤¨áª
|
||
db "FAT12 " ;+54 ; 8 ¡ ©â, ID ä ©«®¢®© á¨á⥬ë
|
||
|
||
len_BPB equ $ - msdos
|
||
|
||
|
||
|
||
; ¡ãä¥à ᯨ᪠áâà ¨æ ¢ë¤¥«. ¡«®ª
|
||
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