mirror of
https://github.com/Ed94/bare_x86.git
synced 2024-12-26 08:54:46 -08:00
Basic build and runs scripts, began setup of ftable n stuff
going the route of watching this series so far.
This commit is contained in:
parent
01081ce167
commit
8d1ec63cc1
1
.gitignore
vendored
1
.gitignore
vendored
@ -0,0 +1 @@
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16bit.loader
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128
16bit.Scratch.s
128
16bit.Scratch.s
@ -5,15 +5,115 @@
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%include "AAL.x86.routines.macros.S"
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%macro DblNewLine_Out 0
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mov AH, Video_TeleType
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mov AL, char_LF
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int VideoService
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mov AL, char_CR
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int VideoService
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mov AL, char_LF
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int VideoService
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mov AL, char_CR
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int VideoService
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%endmacro
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; CmdStr Interface
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; Inline
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%macro CmdStr_Get 0
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mov SI, CmdStr
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%endmacro
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; Inline
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%macro CmdStr_Add 0
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; Put input char to CmdStr
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mov [SI], AL
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; Increment DI, and increment cmdstr length.
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inc SI
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%endmacro
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;=============================================================================================================
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; Entrypoint
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;=============================================================================================================
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start:
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Video_SetTextMode_80x25
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; Video_SetGraphicsMode_320x200
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; Video_SetGraphicsMode_640x200
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mov AH, Video_SetMode
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mov AL, VideoMode_Graphics_640_480_VGA
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int VideoService
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String_Out EntryMsg, [EntryMsg_len]
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; Give some times before starting
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mov AH, BIOS_Wait
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mov CX, 0x10
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int SystemService
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String_Out EntryMsg, [EntryMsg_len]
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DblNewLine_Out
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; Give some times before starting
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mov AH, BIOS_Wait
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mov CX, 0x01
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int SystemService
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String_Out Input_F, [Input_F_len]
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push SI
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; SI will be used as the char index in CmdStr
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CmdStr_Get
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inputLoop:
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; Wait for input
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mov AH, Keyboard_GetKeyStroke
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mov AL, 0x00
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int KeyboardService
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CmdStr_Add
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; Prep to outout character
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mov AH, Video_TeleType
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mov BH, 0x00
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cmp AL, KeyL_Enter
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je exe_Command
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; Output character if command not recognized
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int VideoService
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NewLine_Out
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jmp short inputLoop
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exe_Command:
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; pop SI
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mov AL, [CmdStr]
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cmp AL, KeyL_N
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je end_execution
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cmp AL, KeyL_F
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jne error_CmdNotFound
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String_Out CmdFile, [CmdFile_len]
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CmdStr_Get
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jmp short inputLoop
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error_CmdNotFound:
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String_Out CmdNotFnd, [CmdNotFnd_len]
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CmdStr_Get
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jmp short inputLoop
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; End Program
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; cli
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; hlt
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jmp short inputLoop
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end_execution:
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String_Out ExitMsg, [ExitMsg_len]
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cli
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hlt
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hang:
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jmp short hang
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@ -22,8 +122,24 @@ jmp short hang
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;=============================================================================================================
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; Data
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;=============================================================================================================
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EntryMsg : db 'Hello World!', char_LF, char_CR
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EntryMsg_len : dw 14
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EntryMsg_len : dw 29
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EntryMsg : db 'Bare x86 Mode: 16 bit (Real)', str_endl
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; EntryMsg_len : equ $ - EntryMsg
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ExitMsg_len : dw 12
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ExitMsg : db 'Exiting...', str_endl
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Input_F_len : dw 36
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Input_F : db 'F) File/Program Browser & Launcher', str_endl
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CmdFile_len : dw 14
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CmdFile : db 'Command File', str_endl
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CmdNotFnd_len : dw 19
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CmdNotFnd : db 'Command not found', str_endl
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CmdStr_len : dw 0
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CmdStr : db ''
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%include "AAL.x86.routines.s"
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59
16bit.boot.S
59
16bit.boot.S
@ -26,7 +26,7 @@ start:
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; Give some times before starting
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mov AH, BIOS_Wait
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mov CX, 0x10
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int SystemService
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int SystemService
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xor AX, AX
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; Set Data Segment and Extra Segment to 0x0000
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@ -38,12 +38,13 @@ int SystemService
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mov BX, Mem_BootSector_Start
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mov SP, BX
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String_Out PostMsg, [PostMsg_len]
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String_Out PostMsg, [PostMsg_len]
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mov AH, BIOS_Wait
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mov CX, 0x05
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int SystemService
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int SystemService
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; Load : File Table
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; Loading the code from disk (storage)
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mov DH, 0x0 ; Head NUm
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@ -57,14 +58,37 @@ int SystemService
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; Read Disk (Storage)
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mov AH, Disk_ReadIntoMemory
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mov AL, 0x01 ; Num Sectors
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int DiskService
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mov AL, 0x02 ; Num Sectors
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int DiskService
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String_Out SendoffMsg, [SendOffMsg_len]
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String_Out FTableMsg, [FTableMsg_len]
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mov AH, BIOS_Wait
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mov CX, 0x10
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int SystemService
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int SystemService
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; Load : 16bit.Scratch
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; Loading the code from disk (storage)
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mov DH, 0x0 ; Head NUm
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mov DL, 0x0 ; Drive Num
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mov CH, 0x0 ; Track Num
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mov CL, 0x03 ; Starting Sector
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; Setup ES:BX Memory address/segment
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mov BX, 0x2000 ; ES:BX : 0x1000:0x0
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mov ES, BX
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mov BX, 0x0
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; Read Disk (Storage)
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mov AH, Disk_ReadIntoMemory
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mov AL, 0x02 ; Num Sectors
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int DiskService
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String_Out SendoffMsg, [SendOffMsg_len]
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mov AH, BIOS_Wait
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mov CX, 0x10
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int SystemService
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; Jump if carry flag
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; jc error
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@ -73,7 +97,7 @@ int SystemService
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; jne error
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; Reset segment registers for ram
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mov AX, 0x1000
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mov AX, 0x2000
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mov DS, AX
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mov DS, AX
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mov ES, AX
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@ -82,7 +106,7 @@ int SystemService
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mov SS, AX
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; Heading to 16bit.scratch
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jmp 0x1000:0x0
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jmp 0x2000:0x0
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;=============================================================================================================
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@ -113,7 +137,7 @@ out_string:
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mov BX, CX
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mov AL, [BX + SI]
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xor BH, BH ; Clear BH for correct active page
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int VideoService
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int VideoService
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add SI, 0x1
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jmp .loop
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@ -125,21 +149,26 @@ int VideoService
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ret
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error:
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String_Out ErrorMsg, [ErrorMsg_Len]
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String_Out ErrorMsg, [ErrorMsg_Len]
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hlt ; Halt
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;=============================================================================================================
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; Data
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;=============================================================================================================
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ErrorMsg : db 'Failed - DiskService: ReadIntoMemory'
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ErrorMsg_Len : dw 36
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ErrorMsg : db 'Failed - DiskService: ReadIntoMemory'
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PostMsg : db '16bit.boot', char_LF, char_CR
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PostMsg_len : dw 13
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PostMsg_len : dw 14
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PostMsg : db '16bit.boot', str_endl
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FTableMsg_len : dw 21
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FTableMsg : db 'Loaded 16bit.ftable', str_endl
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SendoffMsg : db 'Sending over to 16bit.scratch...'
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SendOffMsg_len : dw 32
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SendoffMsg : db 'Sending over to 16bit.scratch...'
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;=============================================================================================================
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; Wrap up
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;=============================================================================================================
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13
16bit.ftable.s
Normal file
13
16bit.ftable.s
Normal file
@ -0,0 +1,13 @@
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; x86
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; 16-bit - Real Mode, V86 Mode
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; File Table
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; 0xF91E7AB1E { filename; sector#; filename; sector#; }
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filetable:
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dd 0xEF7AB1E
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dw 0x0000
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db '{ testfile; 04; testProg; 06; }'
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; Byte pad 512 bytes (zeroed)
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times 512-$+filetable db 0
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Binary file not shown.
13
16bit.symtable.s
Normal file
13
16bit.symtable.s
Normal file
@ -0,0 +1,13 @@
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; x86
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; 16-bit - Real Mode, V86 Mode
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; Symbol Table
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; 0x5E7AB1E { symbol; hash; symbol; hash; }
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symtable:
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dd 0x5E7AB1E
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dw 0x0000
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db '{ listDir; #; createFile; #; }'
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; Byte pad 512 bytes (zeroed)
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times 512-$+symtable db 0
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@ -9,50 +9,58 @@
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%macro Video_SetTextMode_80x25 0
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mov AH, Video_SetMode
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mov AL, VideoMode_Text_80x25
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int VideoService
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int VideoService
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%endmacro
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%macro Video_SetGraphicsMode_320x200 0
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mov AH, Video_SetMode
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mov AL, VideoMode_Graphics_320x200
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int VideoService
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int VideoService
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%endmacro
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%macro Video_SetGraphicsMode_640x200 0
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mov AH, Video_SetMode
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mov AL, VideoMode_Graphics_640x200
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int VideoService
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int VideoService
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%endmacro
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;=============================================================================================================
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; Routines
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;=============================================================================================================
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%macro Char_Out 1
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mov AH, Video_TeleType
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mov AL, %1
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int VideoService
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%endmacro
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%macro DumpOut 2
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mov BX, %1
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mov DX, %2
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call out_Dump
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call out_Dump
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%endmacro
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%macro Hex16_ToString 2
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mov DX, %1
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mov CX, %2
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push CX
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call h16_toString
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call h16_toString
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pop CX
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%endmacro
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%macro Char_Out 1
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%macro NewLine_Out 0
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mov AH, Video_TeleType
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mov AL, %1
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int VideoService
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mov AL, char_LF
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int VideoService
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mov AL, char_CR
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int VideoService
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%endmacro
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%macro String_Out 2
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mov BX, %1
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mov AX, %2
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push AX
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call out_string
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call out_string
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pop AX
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%endmacro
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@ -27,8 +27,8 @@ out_Dump:
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push SI
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mov AX, StartLocation
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add AX, SI
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Hex16_ToString AX, .HexStr
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String_Out .HexStr, 4
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Hex16_ToString AX, .HexStr
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String_Out .HexStr, 4
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pop SI
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pop DX
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pop BX
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@ -43,16 +43,16 @@ Char_Out ' '
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push BX
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push DX
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push SI
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Hex16_ToString [.HexNum], .HexStr
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String_Out .HexStr, 4
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Hex16_ToString [.HexNum], .HexStr
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String_Out .HexStr, 4
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pop SI
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pop DX
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pop BX
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Char_Out ' '
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Char_Out ' '
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mov AH, BIOS_Wait
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mov CX, 0x02
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int SystemService
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int SystemService
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inc SI
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jmp .loop
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@ -145,7 +145,7 @@ out_string:
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mov BX, CX
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mov AL, [BX + SI]
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xor BH, BH ; Clear BH for correct active page
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int VideoService
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int VideoService
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add SI, 0x1
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jmp .loop
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30
AAL.x86.s
30
AAL.x86.s
@ -304,6 +304,20 @@
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; Disk Services (Storage)
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%define DiskService 0x13
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; Input
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%define Keyboard_GetKeyStroke 0x00
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%define KeyH_Enter 0x1C
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%define KeyL_Enter 0x0D
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%define KeyH_F 0x21
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%define KeyL_F 0x66
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%define KeyH_N 0x31
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%define KeyL_N 0x6E
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%define KeyboardService 0x16
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; Memory
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; Real Mode - Conventional Lower Memory
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@ -347,6 +361,18 @@
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%define VideoMode_Graphics_320x200 0x04
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%define VideoMode_Graphics_320x200_cboff 0x05
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%define VideoMode_Graphics_640x200 0x06
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%define VideoMode_Text_80x25_Mono 0x07
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%define VideoMode_Graphics_160x200 0x08
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%define VideoMode_Graphics_320x200_PCjr 0x09
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%define VideoMode_Graphics_320x200_PCjr 0x09
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%define VideoMode_Graphics_640x200_PCjr 0x0A
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%define VideoMode_Graphics_320x200_VGA 0x0D
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%define VideoMode_Graphics_640x200_VGA 0x0E
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%define VideoMode_Graphics_640x350_VGA_Mono 0x0F
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%define VideoMode_Graphics_640_350_VGA 0x10
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%define VideoMode_Graphics_640_480_VGA_Mono 0x11
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%define VideoMode_Graphics_640_480_VGA 0x12
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%define VideoMode_Graphics_320_200_VGA 0x13
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; Output a character
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%define Video_TeleType 0xE
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@ -360,8 +386,8 @@
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%define char_CR 0xD ; Carriage Return
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%define char_LF 0xA ; Line Feed
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%define str_endl char_LF, char_CR
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%define AAL_x86_Def
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%endif
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79
Erus.boot.s
79
Erus.boot.s
@ -1,79 +0,0 @@
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; Print HEx
|
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; x86
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; 16-bit - Real Mode, V86 Mode
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; https://codereview.stackexchange.com/questions/230755/display-hexadecimal-value-stored-at-a-register
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%include "AAL.x86.s"
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%include "AAL.x86.routines.macros.s"
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; 16-Bit Mode
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[BITS 16]
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; The ORG directive specifies the starting address of a segment
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[ORG Mem_BootSector_Start]
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|
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start:
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mov BX, Mem_BootSector_Start
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|
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mov AH, BIOS_Wait
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mov CX, 0x10
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int SystemService
|
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|
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; Exclusive-OR (xor'ing a value to itself zeros the value)
|
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xor AX, AX
|
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; Set Data Segment and Extra Segment to 0x0000
|
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mov DS, AX
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mov ES, AX
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; Set Stack Segment (SS) to to 0x0000
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mov SS, AX
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; Set Stack Pointer (SP) to the start of the boot sector.
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mov SP, BX
|
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|
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mov BX, Str_Erus
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mov CX, 4
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push CX
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call out_string
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pop CX
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mov BX, Str_PostMsg
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mov CX, 22
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push CX
|
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call out_string
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pop CX
|
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|
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mov AH, BIOS_Wait
|
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mov CX, 0x10
|
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int SystemService
|
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|
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mov AH, Video_SetMode
|
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mov AL, VideoMode_Text_80x25
|
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int VideoService
|
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|
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mov BX, Str_Erus
|
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mov CX, 4
|
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push CX
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call out_string
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pop CX
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|
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; Idle
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hang :
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jmp short hang
|
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|
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%include "AAL.x86.routines.s"
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|
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; Data
|
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Str_Erus: db 'Erus'
|
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Str_PostMsg : db '... taking over boot', 0xA, 0xD
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|
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;=============================================================================================================
|
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; Wrap up
|
||||
;=============================================================================================================
|
||||
; Byte pad 512 bytes (zeroed)
|
||||
times 510-$+start db 0
|
||||
; Master Boot Record signature
|
||||
db 0x55
|
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db 0xAA
|
||||
18
Makefile
Normal file
18
Makefile
Normal file
@ -0,0 +1,18 @@
|
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|
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16bit.loader: 16bit.boot 16bit.ftable 16bit.scratch
|
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cat 16bit.boot 16bit.ftable 16bit.scratch > 16bit.loader
|
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make clean
|
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|
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16bit.boot:
|
||||
nasm 16bit.boot.s
|
||||
|
||||
16bit.ftable:
|
||||
nasm 16bit.ftable.s
|
||||
|
||||
16bit.scratch:
|
||||
nasm 16bit.scratch.s
|
||||
|
||||
clean:
|
||||
rm 16bit.boot
|
||||
rm 16bit.ftable
|
||||
rm 16bit.scratch
|
||||
Loading…
Reference in New Issue
Block a user