White space style cleanup.
This commit is contained in:
David E. O'Brien
parent
2f3861fab4
commit
a3ab3e07c5
@ -107,12 +107,12 @@ main: pushw %dx # Save
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jnz main.1 # Yes
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testb %dl,%dl # Drive number valid?
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js main.2 # Possibly (0x80 set)
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main.1: movb _SETDRV(%bp),%dl # Drive number to use
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main.1: movb _SETDRV(%bp),%dl # Drive number to use
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#
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# Whatever we decided to use, now store it into the fake
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# partition entry that lives in the data space above us.
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#
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main.2: movb %dl,_FAKE(%bp) # Save drive number
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main.2: movb %dl,_FAKE(%bp) # Save drive number
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callw putn # To new line
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pushw %dx # Save drive number
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#
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@ -128,7 +128,7 @@ main.2: movb %dl,_FAKE(%bp) # Save drive number
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# Loop around on the partition table, printing values until we
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# pass a 256 byte boundary. The end of loop test is at main.5.
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#
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main.3: movb %ch,-0x4(%bx) # Zero active flag (ch == 0)
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main.3: movb %ch,-0x4(%bx) # Zero active flag (ch == 0)
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btw %dx,_FLAGS(%bp) # Entry enabled?
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jnc main.5 # No
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#
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@ -155,10 +155,10 @@ main.3: movb %ch,-0x4(%bx) # Zero active flag (ch == 0)
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# pointing at its first element which points to a "?".
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#
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addw $TBL1SZ,%di # Adjust
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main.4: movb (%di),%cl # Partition
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main.4: movb (%di),%cl # Partition
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addw %cx,%di # description
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callw putx # Display it
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main.5: incw %dx # Next item
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main.5: incw %dx # Next item
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addb $0x10,%bl # Next entry
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jnc main.3 # Till done
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#
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@ -186,7 +186,7 @@ main.5: incw %dx # Next item
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# This also is part of the printed drive string so add 0x80 to indicate
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# end of string.
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#
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main.6: addb $'0'|0x80,%al # Save next
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main.6: addb $'0'|0x80,%al # Save next
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movb %al,_NXTDRV(%bp) # drive number
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movw $drive,%di # Display
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callw putx # item
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@ -194,7 +194,7 @@ main.6: addb $'0'|0x80,%al # Save next
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# Now that we've printed the drive (if we needed to), display a prompt.
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# Get ready for the input byte noting the time.
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#
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main.7: movw $prompt,%si # Display
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main.7: movw $prompt,%si # Display
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callw putstr # prompt
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movb _OPT(%bp),%dl # Display
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decw %si # default
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@ -224,7 +224,7 @@ main.8: xorw %dx,%dx # Use COM1
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#
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# If timed out or defaulting, come here.
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#
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main.9: movb _OPT(%bp),%al # Load default
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main.9: movb _OPT(%bp),%al # Load default
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jmp main.12 # Join common code
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#
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# User's last try was bad, beep in displeasure.
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@ -239,7 +239,7 @@ main.10: movb $ASCII_BEL,%al # Signal
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#
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# Check the character we just got on the serial port.
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#
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main.11: movb $0x02,%ah # BIOS: Receive
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main.11: movb $0x02,%ah # BIOS: Receive
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int $0x14 # COM Byte
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#
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# If it's CR act as if timed out.
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@ -316,7 +316,7 @@ main.15: movw $LOAD,%bx # Address for read
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# Display routines
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#
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putkey: movb $ASCII_1,%al # Prepare
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putkey: movb $ASCII_1,%al # Prepare
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addb %dl,%al # digit
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jmp putstr.1 # Display the rest
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@ -333,7 +333,7 @@ puts: callw putstr # Display string
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putn: movw $crlf,%si # To next line
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putstr: lodsb # Get byte
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putstr: lodsb # Get byte
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testb $0x80,%al # End of string?
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jnz putstr.2 # Yes
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putstr.1: callw putchr # Display char
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@ -350,7 +350,7 @@ putchr: pushw %dx # Save
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# One-sector disk I/O routine
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intx13: movb 0x1(%si),%dh # Load head
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intx13: movb 0x1(%si),%dh # Load head
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movw 0x2(%si),%cx # Load cylinder:sector
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movb $0x1,%al # Sector count
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pushw %si # Save
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@ -374,7 +374,7 @@ intx13.1: int $0x13 # BIOS: Disk I/O
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# Menu strings
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item: .ascii " "; .byte ' '|0x80
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prompt: .ascii "\nDef:"; .byte ' '|0x80
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prompt: .ascii "\nDef:"; .byte ' '|0x80
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crlf: .ascii "\r"; .byte '\n'|0x80
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# Partition type tables
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@ -410,10 +410,10 @@ tables:
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# the end of the string. (not so great for Russians but...)
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#
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os_misc: .ascii "?"; .byte '?'|0x80
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os_dos: .ascii "DO"; .byte 'S'|0x80
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os_dos: .ascii "DO"; .byte 'S'|0x80
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os_linux: .ascii "Linu"; .byte 'x'|0x80
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os_freebsd: .ascii "Free"
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os_bsd: .ascii "BS"; .byte 'D'|0x80
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os_bsd: .ascii "BS"; .byte 'D'|0x80
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.org PRT_OFF-0xe,0x90
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@ -425,14 +425,14 @@ os_bsd: .ascii "BS"; .byte 'D'|0x80
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# is part of the same string.
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#
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drive: .ascii "Drive "
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nxtdrv: .byte 0x0 # Next drive number
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nxtdrv: .byte 0x0 # Next drive number
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opt: .byte 0x0 # Option
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setdrv: .byte 0x80 # Drive to force
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setdrv: .byte 0x80 # Drive to force
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flags: .byte FLAGS # Flags
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ticks: .word TICKS # Delay
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#
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# here is the 64 byte partition table that fdisk would fiddle with.
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#
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partbl: .fill 0x40,0x1,0x0 # Partition table
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partbl: .fill 0x40,0x1,0x0 # Partition table
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.word MAGIC # Magic number
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@ -91,12 +91,12 @@ main: testb $0x20,_FLAGS(%bp) # Set number drive?
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jnz main.1 # Yes
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testb %dl,%dl # Drive number valid?
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js main.2 # Possibly (0x80 set)
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main.1: movb _SETDRV(%bp),%dl # Drive number to use
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main.1: movb _SETDRV(%bp),%dl # Drive number to use
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#
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# Whatever we decided to use, now store it into the fake
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# partition entry that lives in the data space above us.
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#
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main.2: movb %dl,_FAKE(%bp) # Save drive number
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main.2: movb %dl,_FAKE(%bp) # Save drive number
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callw putn # To new line
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pushw %dx # Save drive number
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#
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@ -112,7 +112,7 @@ main.2: movb %dl,_FAKE(%bp) # Save drive number
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# Loop around on the partition table, printing values until we
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# pass a 256 byte boundary. The end of loop test is at main.5.
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#
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main.3: movb %ch,-0x4(%bx) # Zero active flag (ch == 0)
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main.3: movb %ch,-0x4(%bx) # Zero active flag (ch == 0)
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btw %dx,_FLAGS(%bp) # Entry enabled?
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jnc main.5 # No
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#
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@ -139,10 +139,10 @@ main.3: movb %ch,-0x4(%bx) # Zero active flag (ch == 0)
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# pointing at its first element which points to a "?".
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#
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addw $TBL1SZ,%di # Adjust
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main.4: movb (%di),%cl # Partition
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main.4: movb (%di),%cl # Partition
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addw %cx,%di # description
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callw putx # Display it
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main.5: incw %dx # Next item
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main.5: incw %dx # Next item
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addb $0x10,%bl # Next entry
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jnc main.3 # Till done
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#
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@ -170,7 +170,7 @@ main.5: incw %dx # Next item
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# This also is part of the printed drive string so add 0x80 to indicate
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# end of string.
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#
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main.6: addb $'0'|0x80,%al # Save next
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main.6: addb $'0'|0x80,%al # Save next
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movb %al,_NXTDRV(%bp) # drive number
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movw $drive,%di # Display
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callw putx # item
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@ -178,7 +178,7 @@ main.6: addb $'0'|0x80,%al # Save next
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# Now that we've printed the drive (if we needed to), display a prompt.
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# Get ready for the input by noting the time.
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#
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main.7: movw $prompt,%si # Display
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main.7: movw $prompt,%si # Display
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callw putstr # prompt
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movb _OPT(%bp),%dl # Display
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decw %si # default
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@ -191,7 +191,7 @@ main.7: movw $prompt,%si # Display
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# Busy loop, looking for keystrokes but
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# keeping one eye on the time.
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#
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main.8: movb $0x1,%ah # BIOS: Check
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main.8: movb $0x1,%ah # BIOS: Check
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int $0x16 # for keypress
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jnz main.11 # Have one
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xorb %ah,%ah # BIOS: Get
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@ -201,7 +201,7 @@ main.8: movb $0x1,%ah # BIOS: Check
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#
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# If timed out or defaulting, come here.
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#
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main.9: movb _OPT(%bp),%al # Load default
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main.9: movb _OPT(%bp),%al # Load default
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jmp main.12 # Join common code
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#
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# User's last try was bad, beep in displeasure.
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@ -296,7 +296,7 @@ main.15: movw $LOAD,%bx # Address for read
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# Display routines
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#
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putkey: movb $'F',%al # Display
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putkey: movb $'F',%al # Display
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callw putchr # 'F'
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movb $'1',%al # Prepare
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addb %dl,%al # digit
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@ -315,14 +315,14 @@ puts: callw putstr # Display string
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putn: movw $crlf,%si # To next line
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putstr: lodsb # Get byte
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putstr: lodsb # Get byte
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testb $0x80,%al # End of string?
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jnz putstr.2 # Yes
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putstr.1: callw putchr # Display char
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jmp putstr # Continue
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putstr.2: andb $~0x80,%al # Clear MSB
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putchr: pushw %bx # Save
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putchr: pushw %bx # Save
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movw $0x7,%bx # Page:attribute
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movb $0xe,%ah # BIOS: Display
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int $0x10 # character
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@ -331,7 +331,7 @@ putchr: pushw %bx # Save
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# One-sector disk I/O routine
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intx13: movb 0x1(%si),%dh # Load head
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intx13: movb 0x1(%si),%dh # Load head
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movw 0x2(%si),%cx # Load cylinder:sector
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movb $0x1,%al # Sector count
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pushw %si # Save
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@ -355,7 +355,7 @@ intx13.1: int $0x13 # BIOS: Disk I/O
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# Menu strings
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item: .ascii " "; .byte ' '|0x80
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prompt: .ascii "\nDefault:"; .byte ' '|0x80
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prompt: .ascii "\nDefault:"; .byte ' '|0x80
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crlf: .ascii "\r"; .byte '\n'|0x80
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# Partition type tables
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@ -391,10 +391,10 @@ tables:
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# the end of the string. (not so great for Russians but...)
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#
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os_misc: .ascii "?"; .byte '?'|0x80
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os_dos: .ascii "DO"; .byte 'S'|0x80
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os_dos: .ascii "DO"; .byte 'S'|0x80
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os_linux: .ascii "Linu"; .byte 'x'|0x80
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os_freebsd: .ascii "Free"
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os_bsd: .ascii "BS"; .byte 'D'|0x80
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os_bsd: .ascii "BS"; .byte 'D'|0x80
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.org PRT_OFF-0xe,0x90
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@ -406,14 +406,14 @@ os_bsd: .ascii "BS"; .byte 'D'|0x80
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# is part of the same string.
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#
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drive: .ascii "Drive "
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nxtdrv: .byte 0x0 # Next drive number
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nxtdrv: .byte 0x0 # Next drive number
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opt: .byte 0x0 # Option
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setdrv: .byte 0x80 # Drive to force
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setdrv: .byte 0x80 # Drive to force
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flags: .byte FLAGS # Flags
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ticks: .word TICKS # Delay
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#
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# here is the 64 byte partition table that fdisk would fiddle with.
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#
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partbl: .fill 0x40,0x1,0x0 # Partition table
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partbl: .fill 0x40,0x1,0x0 # Partition table
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.word MAGIC # Magic number
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@ -72,9 +72,9 @@ start: cld # String ops inc
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movw %ax,%ds # data
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movw %ax,%ss # Set up
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movw $LOAD,%sp # stack
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#
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#
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# End signature code
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#
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#
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#
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# Set address for variable space beyond code, and clear it.
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# Notice that this is also used to point to the values embedded in the block,
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@ -98,7 +98,7 @@ boot.1: movb LOAD+setdrv-start,%dl # Drive number to use
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boot.2:
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#
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# Reload all of boot0 (including the extra sectors) into memory at the
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# relocation address.
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# relocation address.
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#
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push %dx # Save drive number
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movw $start,%bx # Origin we were linked for
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@ -130,7 +130,7 @@ main: movb %dl,_FAKE(%bp) # Save drive number
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# Loop around on the partition table, printing values until we
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# pass a 256 byte boundary. The end of loop test is at main.5.
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#
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main.3: movb %ch,-0x4(%bx) # Zero active flag (ch == 0)
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main.3: movb %ch,-0x4(%bx) # Zero active flag (ch == 0)
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btw %dx,_FLAGS(%bp) # Entry enabled?
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jnc main.5 # No
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#
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@ -157,16 +157,16 @@ main.3: movb %ch,-0x4(%bx) # Zero active flag (ch == 0)
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# pointing at its first element which points to a "?".
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#
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addw $TBL1SZ,%di # Adjust
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main.4: movb (%di),%cl # Partition
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main.4 movb (%di),%cl # Partition
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addw %cx,%di # description
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callw putx # Display it
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main.5: incw %dx # Next item
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main.5 incw %dx # Next item
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addb $0x10,%bl # Next entry
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jnc main.3 # Till done
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#
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# Passed a 256 byte boundary..
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# table is finished.
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# Add one to the drive number and check it is valid,
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# Add one to the drive number and check it is valid,
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#
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popw %ax # Drive number
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subb $0x80-0x1,%al # Does next
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@ -188,7 +188,7 @@ main.5: incw %dx # Next item
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# This also is part of the printed drive string so add 0x80 to indicate
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# end of string.
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#
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main.6: addb $'0'|0x80,%al # Save next
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main.6: addb $'0'|0x80,%al # Save next
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movb %al,_NXTDRV(%bp) # drive number
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movw $drive,%di # Display
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callw putx # item
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@ -196,7 +196,7 @@ main.6: addb $'0'|0x80,%al # Save next
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# Now that we've printed the drive (if we needed to), display a prompt.
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# Get ready for the input by noting the time.
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#
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main.7: movw $prompt,%si # Display
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main.7: movw $prompt,%si # Display
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callw putstr # prompt
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movb _OPT(%bp),%dl # Display
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decw %si # default
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@ -205,11 +205,11 @@ main.7: movw $prompt,%si # Display
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int $0x1a # system time
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movw %dx,%di # Ticks when
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addw _TICKS(%bp),%di # timeout
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#
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#
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# Busy loop, looking for keystrokes but
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# keeping one eye on the time.
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#
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main.8: movb $0x1,%ah # BIOS: Check
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main.8: movb $0x1,%ah # BIOS: Check
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int $0x16 # for keypress
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jnz main.11 # Have one
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xorb %ah,%ah # BIOS: Get
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@ -219,12 +219,12 @@ main.8: movb $0x1,%ah # BIOS: Check
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#
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# If timed out or defaulting, come here.
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#
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main.9: movb _OPT(%bp),%al # Load default
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main.9: movb _OPT(%bp),%al # Load default
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jmp main.12 # Join common code
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#
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# User's last try was bad, beep in displeasure.
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# Since nothing was printed, just continue on as if the user
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# hadn't done anything. This gives the effect of the user getting a beep
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# hadn't done anything. This gives the effect of the user getting a beep
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# for all bad keystrokes but no action until either the timeout
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# occurs or the user hits a good key.
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#
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@ -293,7 +293,7 @@ main.14: popw %si # Restore
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jne main.15 # If not F5/#5
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movb _NXTDRV(%bp),%dl # Next drive
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subb $'0',%dl # number
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#
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#
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# load selected bootsector to the LOAD location in RAM.
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# If it fails to read or isn't marked bootable, treat it
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# as a bad selection.
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@ -311,7 +311,7 @@ main.15: movw $LOAD,%bx # Address for read
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# Display routines
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#
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putkey: movb $'F',%al # Display
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putkey: movb $'F',%al # Display
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callw putchr # 'F'
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movb $'1',%al # Prepare
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addb %dl,%al # digit
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@ -330,14 +330,14 @@ puts: callw putstr # Display string
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putn: movw $crlf,%si # To next line
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putstr: lodsb # Get byte
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putstr: lodsb # Get byte
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testb $0x80,%al # End of string?
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jnz putstr.2 # Yes
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putstr.1: callw putchr # Display char
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jmp putstr # Continue
|
||||
putstr.2: andb $~0x80,%al # Clear MSB
|
||||
|
||||
putchr: pushw %bx # Save
|
||||
putchr: pushw %bx # Save
|
||||
movw $0x7,%bx # Page:attribute
|
||||
movb $0xe,%ah # BIOS: Display
|
||||
int $0x10 # character
|
||||
@ -360,7 +360,7 @@ putchr: pushw %bx # Save
|
||||
# to use the EDD stuff with the LBA offset instead of CHS. However,
|
||||
# use CHS if at all possible.
|
||||
|
||||
intx13: movb 0x1(%si),%dh # Load head
|
||||
intx13: movb 0x1(%si),%dh # Load head
|
||||
movw 0x2(%si),%cx # Load cylinder:sector
|
||||
pushw %si # Save
|
||||
movw %sp,%di # Save
|
||||
@ -405,25 +405,25 @@ intx13.2: int $0x13 # BIOS: Disk I/O
|
||||
.org PRT_OFF-0xe,0x90
|
||||
#
|
||||
# These values are sometimes changed before writing back to the drive
|
||||
# Be especially careful that nxtdrv: must come after drive:, as it
|
||||
# Be especially careful that nxtdrv: must come after drive:, as it
|
||||
# is part of the same string.
|
||||
#
|
||||
# Note that the 'drive' string variable is used as the second signature
|
||||
# check in boot0cfg(8).
|
||||
#
|
||||
version_minor: .byte 0x1 # minor version
|
||||
version_major: .byte 0x1 # major version
|
||||
version_major: .byte 0x1 # major version
|
||||
drive: .ascii "Drive "
|
||||
nxtdrv: .byte 0x0 # Next drive number
|
||||
nxtdrv: .byte 0x0 # Next drive number
|
||||
opt: .byte 0x0 # Option
|
||||
setdrv: .byte 0x80 # Drive to force
|
||||
setdrv: .byte 0x80 # Drive to force
|
||||
flags: .byte FLAGS # Flags
|
||||
ticks: .word TICKS # Delay
|
||||
|
||||
#
|
||||
# here is the 64 byte partition table that fdisk would fiddle with.
|
||||
#
|
||||
partbl: .fill 0x40,0x1,0x0 # Partition table
|
||||
partbl: .fill 0x40,0x1,0x0 # Partition table
|
||||
.word MAGIC # Magic number
|
||||
|
||||
#
|
||||
@ -433,7 +433,7 @@ partbl: .fill 0x40,0x1,0x0 # Partition table
|
||||
# Menu strings
|
||||
|
||||
item: .ascii " "; .byte ' '|0x80
|
||||
prompt: .ascii "\nDefault:"; .byte ' '|0x80
|
||||
prompt: .ascii "\nDefault:"; .byte ' '|0x80
|
||||
crlf: .ascii "\r"; .byte '\n'|0x80
|
||||
|
||||
# Partition type tables
|
||||
@ -470,13 +470,13 @@ table1_end:
|
||||
.byte os_openbsd-. # OpenBSD
|
||||
.byte os_netbsd-. # NetBSD
|
||||
#
|
||||
# And here are the strings themselves. 0x80 or'd into a byte indicates
|
||||
# And here are the strings themselves. 0x80 or'd into a byte indicates
|
||||
# the end of the string. (not so great for Russians but...)
|
||||
#
|
||||
os_misc: .ascii "Unknow"; .byte 'n'|0x80
|
||||
os_dos: .ascii "DO"; .byte 'S'|0x80
|
||||
os_dos: .ascii "DO"; .byte 'S'|0x80
|
||||
os_nt: .ascii "Windows NT/X"; .byte 'P'|0x80
|
||||
os_windows: .ascii "Window"; .byte 's'|0x80
|
||||
os_windows: .ascii "Window"; .byte 's'|0x80
|
||||
os_unix: .ascii "UNI"; .byte 'X'|0x80
|
||||
os_linux: .ascii "Linu"; .byte 'x'|0x80
|
||||
os_freebsd: .ascii "FreeBS"; .byte 'D'|0x80
|
||||
|
||||
@ -72,9 +72,9 @@ start: cld # String ops inc
|
||||
movw %ax,%ds # data
|
||||
movw %ax,%ss # Set up
|
||||
movw $LOAD,%sp # stack
|
||||
#
|
||||
#
|
||||
# End signature code
|
||||
#
|
||||
#
|
||||
#
|
||||
# Set address for variable space beyond code, and clear it.
|
||||
# Notice that this is also used to point to the values embedded in the block,
|
||||
@ -98,7 +98,7 @@ boot.1: movb LOAD+setdrv-start,%dl # Drive number to use
|
||||
boot.2:
|
||||
#
|
||||
# Reload all of boot0 (including the extra sectors) into memory at the
|
||||
# relocation address.
|
||||
# relocation address.
|
||||
#
|
||||
push %dx # Save drive number
|
||||
movw $start,%bx # Origin we were linked for
|
||||
@ -130,7 +130,7 @@ main: movb %dl,_FAKE(%bp) # Save drive number
|
||||
# Loop around on the partition table, printing values until we
|
||||
# pass a 256 byte boundary. The end of loop test is at main.5.
|
||||
#
|
||||
main.3: movb %ch,-0x4(%bx) # Zero active flag (ch == 0)
|
||||
main.3: movb %ch,-0x4(%bx) # Zero active flag (ch == 0)
|
||||
btw %dx,_FLAGS(%bp) # Entry enabled?
|
||||
jnc main.5 # No
|
||||
#
|
||||
@ -157,16 +157,16 @@ main.3: movb %ch,-0x4(%bx) # Zero active flag (ch == 0)
|
||||
# pointing at its first element which points to a "?".
|
||||
#
|
||||
addw $TBL1SZ,%di # Adjust
|
||||
main.4: movb (%di),%cl # Partition
|
||||
main.4 movb (%di),%cl # Partition
|
||||
addw %cx,%di # description
|
||||
callw putx # Display it
|
||||
main.5: incw %dx # Next item
|
||||
main.5 incw %dx # Next item
|
||||
addb $0x10,%bl # Next entry
|
||||
jnc main.3 # Till done
|
||||
#
|
||||
# Passed a 256 byte boundary..
|
||||
# table is finished.
|
||||
# Add one to the drive number and check it is valid,
|
||||
# Add one to the drive number and check it is valid,
|
||||
#
|
||||
popw %ax # Drive number
|
||||
subb $0x80-0x1,%al # Does next
|
||||
@ -188,7 +188,7 @@ main.5: incw %dx # Next item
|
||||
# This also is part of the printed drive string so add 0x80 to indicate
|
||||
# end of string.
|
||||
#
|
||||
main.6: addb $'0'|0x80,%al # Save next
|
||||
main.6: addb $'0'|0x80,%al # Save next
|
||||
movb %al,_NXTDRV(%bp) # drive number
|
||||
movw $drive,%di # Display
|
||||
callw putx # item
|
||||
@ -196,7 +196,7 @@ main.6: addb $'0'|0x80,%al # Save next
|
||||
# Now that we've printed the drive (if we needed to), display a prompt.
|
||||
# Get ready for the input by noting the time.
|
||||
#
|
||||
main.7: movw $prompt,%si # Display
|
||||
main.7: movw $prompt,%si # Display
|
||||
callw putstr # prompt
|
||||
movb _OPT(%bp),%dl # Display
|
||||
decw %si # default
|
||||
@ -205,11 +205,11 @@ main.7: movw $prompt,%si # Display
|
||||
int $0x1a # system time
|
||||
movw %dx,%di # Ticks when
|
||||
addw _TICKS(%bp),%di # timeout
|
||||
#
|
||||
#
|
||||
# Busy loop, looking for keystrokes but
|
||||
# keeping one eye on the time.
|
||||
#
|
||||
main.8: movb $0x1,%ah # BIOS: Check
|
||||
main.8: movb $0x1,%ah # BIOS: Check
|
||||
int $0x16 # for keypress
|
||||
jnz main.11 # Have one
|
||||
xorb %ah,%ah # BIOS: Get
|
||||
@ -219,12 +219,12 @@ main.8: movb $0x1,%ah # BIOS: Check
|
||||
#
|
||||
# If timed out or defaulting, come here.
|
||||
#
|
||||
main.9: movb _OPT(%bp),%al # Load default
|
||||
main.9: movb _OPT(%bp),%al # Load default
|
||||
jmp main.12 # Join common code
|
||||
#
|
||||
# User's last try was bad, beep in displeasure.
|
||||
# Since nothing was printed, just continue on as if the user
|
||||
# hadn't done anything. This gives the effect of the user getting a beep
|
||||
# hadn't done anything. This gives the effect of the user getting a beep
|
||||
# for all bad keystrokes but no action until either the timeout
|
||||
# occurs or the user hits a good key.
|
||||
#
|
||||
@ -293,7 +293,7 @@ main.14: popw %si # Restore
|
||||
jne main.15 # If not F5/#5
|
||||
movb _NXTDRV(%bp),%dl # Next drive
|
||||
subb $'0',%dl # number
|
||||
#
|
||||
#
|
||||
# load selected bootsector to the LOAD location in RAM.
|
||||
# If it fails to read or isn't marked bootable, treat it
|
||||
# as a bad selection.
|
||||
@ -311,7 +311,7 @@ main.15: movw $LOAD,%bx # Address for read
|
||||
# Display routines
|
||||
#
|
||||
|
||||
putkey: movb $'F',%al # Display
|
||||
putkey: movb $'F',%al # Display
|
||||
callw putchr # 'F'
|
||||
movb $'1',%al # Prepare
|
||||
addb %dl,%al # digit
|
||||
@ -330,14 +330,14 @@ puts: callw putstr # Display string
|
||||
|
||||
putn: movw $crlf,%si # To next line
|
||||
|
||||
putstr: lodsb # Get byte
|
||||
putstr: lodsb # Get byte
|
||||
testb $0x80,%al # End of string?
|
||||
jnz putstr.2 # Yes
|
||||
putstr.1: callw putchr # Display char
|
||||
jmp putstr # Continue
|
||||
putstr.2: andb $~0x80,%al # Clear MSB
|
||||
|
||||
putchr: pushw %bx # Save
|
||||
putchr: pushw %bx # Save
|
||||
movw $0x7,%bx # Page:attribute
|
||||
movb $0xe,%ah # BIOS: Display
|
||||
int $0x10 # character
|
||||
@ -360,7 +360,7 @@ putchr: pushw %bx # Save
|
||||
# to use the EDD stuff with the LBA offset instead of CHS. However,
|
||||
# use CHS if at all possible.
|
||||
|
||||
intx13: movb 0x1(%si),%dh # Load head
|
||||
intx13: movb 0x1(%si),%dh # Load head
|
||||
movw 0x2(%si),%cx # Load cylinder:sector
|
||||
pushw %si # Save
|
||||
movw %sp,%di # Save
|
||||
@ -405,25 +405,25 @@ intx13.2: int $0x13 # BIOS: Disk I/O
|
||||
.org PRT_OFF-0xe,0x90
|
||||
#
|
||||
# These values are sometimes changed before writing back to the drive
|
||||
# Be especially careful that nxtdrv: must come after drive:, as it
|
||||
# Be especially careful that nxtdrv: must come after drive:, as it
|
||||
# is part of the same string.
|
||||
#
|
||||
# Note that the 'drive' string variable is used as the second signature
|
||||
# check in boot0cfg(8).
|
||||
#
|
||||
version_minor: .byte 0x1 # minor version
|
||||
version_major: .byte 0x1 # major version
|
||||
version_major: .byte 0x1 # major version
|
||||
drive: .ascii "Drive "
|
||||
nxtdrv: .byte 0x0 # Next drive number
|
||||
nxtdrv: .byte 0x0 # Next drive number
|
||||
opt: .byte 0x0 # Option
|
||||
setdrv: .byte 0x80 # Drive to force
|
||||
setdrv: .byte 0x80 # Drive to force
|
||||
flags: .byte FLAGS # Flags
|
||||
ticks: .word TICKS # Delay
|
||||
|
||||
#
|
||||
# here is the 64 byte partition table that fdisk would fiddle with.
|
||||
#
|
||||
partbl: .fill 0x40,0x1,0x0 # Partition table
|
||||
partbl: .fill 0x40,0x1,0x0 # Partition table
|
||||
.word MAGIC # Magic number
|
||||
|
||||
#
|
||||
@ -433,7 +433,7 @@ partbl: .fill 0x40,0x1,0x0 # Partition table
|
||||
# Menu strings
|
||||
|
||||
item: .ascii " "; .byte ' '|0x80
|
||||
prompt: .ascii "\nDefault:"; .byte ' '|0x80
|
||||
prompt: .ascii "\nDefault:"; .byte ' '|0x80
|
||||
crlf: .ascii "\r"; .byte '\n'|0x80
|
||||
|
||||
# Partition type tables
|
||||
@ -470,13 +470,13 @@ table1_end:
|
||||
.byte os_openbsd-. # OpenBSD
|
||||
.byte os_netbsd-. # NetBSD
|
||||
#
|
||||
# And here are the strings themselves. 0x80 or'd into a byte indicates
|
||||
# And here are the strings themselves. 0x80 or'd into a byte indicates
|
||||
# the end of the string. (not so great for Russians but...)
|
||||
#
|
||||
os_misc: .ascii "Unknow"; .byte 'n'|0x80
|
||||
os_dos: .ascii "DO"; .byte 'S'|0x80
|
||||
os_dos: .ascii "DO"; .byte 'S'|0x80
|
||||
os_nt: .ascii "Windows NT/X"; .byte 'P'|0x80
|
||||
os_windows: .ascii "Window"; .byte 's'|0x80
|
||||
os_windows: .ascii "Window"; .byte 's'|0x80
|
||||
os_unix: .ascii "UNI"; .byte 'X'|0x80
|
||||
os_linux: .ascii "Linu"; .byte 'x'|0x80
|
||||
os_freebsd: .ascii "FreeBS"; .byte 'D'|0x80
|
||||
|
||||
@ -107,12 +107,12 @@ main: pushw %dx # Save
|
||||
jnz main.1 # Yes
|
||||
testb %dl,%dl # Drive number valid?
|
||||
js main.2 # Possibly (0x80 set)
|
||||
main.1: movb _SETDRV(%bp),%dl # Drive number to use
|
||||
main.1: movb _SETDRV(%bp),%dl # Drive number to use
|
||||
#
|
||||
# Whatever we decided to use, now store it into the fake
|
||||
# partition entry that lives in the data space above us.
|
||||
#
|
||||
main.2: movb %dl,_FAKE(%bp) # Save drive number
|
||||
main.2: movb %dl,_FAKE(%bp) # Save drive number
|
||||
callw putn # To new line
|
||||
pushw %dx # Save drive number
|
||||
#
|
||||
@ -128,7 +128,7 @@ main.2: movb %dl,_FAKE(%bp) # Save drive number
|
||||
# Loop around on the partition table, printing values until we
|
||||
# pass a 256 byte boundary. The end of loop test is at main.5.
|
||||
#
|
||||
main.3: movb %ch,-0x4(%bx) # Zero active flag (ch == 0)
|
||||
main.3: movb %ch,-0x4(%bx) # Zero active flag (ch == 0)
|
||||
btw %dx,_FLAGS(%bp) # Entry enabled?
|
||||
jnc main.5 # No
|
||||
#
|
||||
@ -155,10 +155,10 @@ main.3: movb %ch,-0x4(%bx) # Zero active flag (ch == 0)
|
||||
# pointing at its first element which points to a "?".
|
||||
#
|
||||
addw $TBL1SZ,%di # Adjust
|
||||
main.4: movb (%di),%cl # Partition
|
||||
main.4: movb (%di),%cl # Partition
|
||||
addw %cx,%di # description
|
||||
callw putx # Display it
|
||||
main.5: incw %dx # Next item
|
||||
main.5: incw %dx # Next item
|
||||
addb $0x10,%bl # Next entry
|
||||
jnc main.3 # Till done
|
||||
#
|
||||
@ -186,7 +186,7 @@ main.5: incw %dx # Next item
|
||||
# This also is part of the printed drive string so add 0x80 to indicate
|
||||
# end of string.
|
||||
#
|
||||
main.6: addb $'0'|0x80,%al # Save next
|
||||
main.6: addb $'0'|0x80,%al # Save next
|
||||
movb %al,_NXTDRV(%bp) # drive number
|
||||
movw $drive,%di # Display
|
||||
callw putx # item
|
||||
@ -194,7 +194,7 @@ main.6: addb $'0'|0x80,%al # Save next
|
||||
# Now that we've printed the drive (if we needed to), display a prompt.
|
||||
# Get ready for the input byte noting the time.
|
||||
#
|
||||
main.7: movw $prompt,%si # Display
|
||||
main.7: movw $prompt,%si # Display
|
||||
callw putstr # prompt
|
||||
movb _OPT(%bp),%dl # Display
|
||||
decw %si # default
|
||||
@ -224,7 +224,7 @@ main.8: xorw %dx,%dx # Use COM1
|
||||
#
|
||||
# If timed out or defaulting, come here.
|
||||
#
|
||||
main.9: movb _OPT(%bp),%al # Load default
|
||||
main.9: movb _OPT(%bp),%al # Load default
|
||||
jmp main.12 # Join common code
|
||||
#
|
||||
# User's last try was bad, beep in displeasure.
|
||||
@ -239,7 +239,7 @@ main.10: movb $ASCII_BEL,%al # Signal
|
||||
#
|
||||
# Check the character we just got on the serial port.
|
||||
#
|
||||
main.11: movb $0x02,%ah # BIOS: Receive
|
||||
main.11: movb $0x02,%ah # BIOS: Receive
|
||||
int $0x14 # COM Byte
|
||||
#
|
||||
# If it's CR act as if timed out.
|
||||
@ -316,7 +316,7 @@ main.15: movw $LOAD,%bx # Address for read
|
||||
# Display routines
|
||||
#
|
||||
|
||||
putkey: movb $ASCII_1,%al # Prepare
|
||||
putkey: movb $ASCII_1,%al # Prepare
|
||||
addb %dl,%al # digit
|
||||
jmp putstr.1 # Display the rest
|
||||
|
||||
@ -333,7 +333,7 @@ puts: callw putstr # Display string
|
||||
|
||||
putn: movw $crlf,%si # To next line
|
||||
|
||||
putstr: lodsb # Get byte
|
||||
putstr: lodsb # Get byte
|
||||
testb $0x80,%al # End of string?
|
||||
jnz putstr.2 # Yes
|
||||
putstr.1: callw putchr # Display char
|
||||
@ -350,7 +350,7 @@ putchr: pushw %dx # Save
|
||||
|
||||
# One-sector disk I/O routine
|
||||
|
||||
intx13: movb 0x1(%si),%dh # Load head
|
||||
intx13: movb 0x1(%si),%dh # Load head
|
||||
movw 0x2(%si),%cx # Load cylinder:sector
|
||||
movb $0x1,%al # Sector count
|
||||
pushw %si # Save
|
||||
@ -374,7 +374,7 @@ intx13.1: int $0x13 # BIOS: Disk I/O
|
||||
# Menu strings
|
||||
|
||||
item: .ascii " "; .byte ' '|0x80
|
||||
prompt: .ascii "\nDef:"; .byte ' '|0x80
|
||||
prompt: .ascii "\nDef:"; .byte ' '|0x80
|
||||
crlf: .ascii "\r"; .byte '\n'|0x80
|
||||
|
||||
# Partition type tables
|
||||
@ -410,10 +410,10 @@ tables:
|
||||
# the end of the string. (not so great for Russians but...)
|
||||
#
|
||||
os_misc: .ascii "?"; .byte '?'|0x80
|
||||
os_dos: .ascii "DO"; .byte 'S'|0x80
|
||||
os_dos: .ascii "DO"; .byte 'S'|0x80
|
||||
os_linux: .ascii "Linu"; .byte 'x'|0x80
|
||||
os_freebsd: .ascii "Free"
|
||||
os_bsd: .ascii "BS"; .byte 'D'|0x80
|
||||
os_bsd: .ascii "BS"; .byte 'D'|0x80
|
||||
|
||||
.org PRT_OFF-0xe,0x90
|
||||
|
||||
@ -425,14 +425,14 @@ os_bsd: .ascii "BS"; .byte 'D'|0x80
|
||||
# is part of the same string.
|
||||
#
|
||||
drive: .ascii "Drive "
|
||||
nxtdrv: .byte 0x0 # Next drive number
|
||||
nxtdrv: .byte 0x0 # Next drive number
|
||||
opt: .byte 0x0 # Option
|
||||
setdrv: .byte 0x80 # Drive to force
|
||||
setdrv: .byte 0x80 # Drive to force
|
||||
flags: .byte FLAGS # Flags
|
||||
ticks: .word TICKS # Delay
|
||||
|
||||
#
|
||||
# here is the 64 byte partition table that fdisk would fiddle with.
|
||||
#
|
||||
partbl: .fill 0x40,0x1,0x0 # Partition table
|
||||
partbl: .fill 0x40,0x1,0x0 # Partition table
|
||||
.word MAGIC # Magic number
|
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