Piper's Pit BBS/FTP: ibm 0010 - 0019/ibm0010-0019/ibm0010.tar/ibm0010/PERI_50.ZIP/PERI.PGM/PSHELP2.TXT

Text File | 1990-08-20 | 23.1 KB | 645 lines

\?
Syntax: ? [<command>]
Use: Display help for the Periscope commands if the on-line help file has
been loaded.
Example: '? DB' displays help for the DB command.
\16
Syntax: 16
Use: Switch to 16-bit disassembly mode of 80386 instructions.
Example: '16' switches to 16-bit disassembly mode.
\32
Syntax: 32
Use: Switch to 32-bit disassembly mode of 80386 instructions.
Example: '32' switches to 32-bit disassembly mode.
\A
Syntax: A [<address>]
Use: Assemble instructions to memory.
Example: 'A' starts the assembler at CS:IP.
\AU
Syntax: AU [<address>]
Use: Assemble instructions to memory and then disassemble the instructions.
Example: 'AU IP+10' starts the assembler at IP+10.
\BA
Syntax: BA [?] [*] [+] [-] [A]
Use: Use 'A' to toggle Anding of breakpoints, ? to display, * to clear, + to
enable, and - to disable all software breakpoints.
Example: 'BA ?' or 'BA' displays all software breakpoints.
\BB
Syntax: BB [<address> <test> <byte>] [?] [*] [+] [-]
Use: Set a monitor breakpoint when a byte of memory meets a test.
Example: 'BB TOTAL EQ 88' sets a byte breakpoint when TOTAL equals 88H.
\BC
Syntax: BC [<address>] [?] [*] [+] [-] [!<number>]
Use: Set a sticky code breakpoint when an instruction is executed.
Example: 'BC PRINTF' sets a sticky code breakpoint at the symbol PRINTF.
\BD
Syntax: BD [<address>] [L <byte> R|W|X]] [?] [*] [+] [-]
Use: Set 80386 debug registers for real-time breakpoints.
Example: 'BD TOTAL L2 W' sets a breakpoint when TOTAL is written.
\BF
Syntax: BF [<flag>] [?] [*] [+] [-]
Use: Set a monitor breakpoint for a single flag value.
Example: 'BF CY' sets a break on the carry flag.
\BI
Syntax: BI [<byte>] [?] [*] [+] [-] [#]
Use: Set a monitor breakpoint when a software interrupt is executed.
Example: 'BI * 21' clears all interrupts then sets a break on int 21H.
\BL
Syntax: BL [?] [*] [+] [-]
Use: Set a monitor breakpoint when a source code line is executed.
Example: 'BL +;GT' sets line breaks on and begins execution in trace mode.
\BM
Syntax: BM [<address> <address> R and/or W and/or X] [?] [*] [+] [-]
Use: Set a monitor breakpoint when a range of memory is read, written,
and/or executed.
Example: 'BM 0:0 0:F W' sets a breakpoint on memory writes from 0:0 to 0:F.
\BP
Syntax: BP [<port> [<port>] I and/or O] [?] [*] [+] [-]
Use: Set a monitor breakpoint when a range of I/O ports is read and/or
written.
Example: 'BP 308 308 I' sets a breakpoint on reads of port 308H.
\BR
Syntax: BR [<register> <test> <number>] [?] [*] [+] [-]
Use: Set a monitor breakpoint when a register meets a test.
Example: 'BR AX NE AX' sets a break when AX changes from its current value.
\BU
Syntax: BU [<number>] [?] [*] [+] [-]
Use: Set a user-written monitor breakpoint.
Example: 'BU 1' enables user breakpoint 1.
\BW
Syntax: BW [<address> <test> <number>] [?] [*] [+] [-]
Use: Set a monitor breakpoint when a word of memory meets a test.
Example: 'BW PAGE_NO NE 0' sets a breakpoint when PAGE_NO is not equal to 0.
\BX
Syntax: BX [?] [*] [+] [-]
Use: Set a monitor breakpoint when a RET or IRET is executed.
Example: 'BX +;GT' sets return breaks on and begins execution in trace mode.
\C
Syntax: C <range> <address>
Use: Compare two blocks of memory a byte at a time.
Example: 'C DS:SI L8 ES:DI' compares memory at DS:SI and ES:DI for 8 bytes.
\D
Syntax: D [<range>]
Use: Display a block of memory in the current display format.
Example: 'D 100' displays memory starting at offset 100H.
See also: DA, DB, DD, DE, DI, DL, DN, DR, DS, DW, DX, DY, and DZ.
\DA
Syntax: DA [<range>]
Use: Display a block of memory in ASCII.
Example: 'DA FILE' displays the symbol FILE in ASCII.
\DB
Syntax: DB [<range>]
Use: Display a block of memory in hex and ASCII.
Example: 'DB 123' displays memory starting at 123H.
\DD
Syntax: DD [<range>]
Use: Display a block of memory in double word format.
Example: 'DD 0:21*4' displays the interrupt vectors starting at 21H.
\DE
Syntax: DE
Use: Display the effective address of any reads or writes performed by the
current instruction.
Example: 'DE' turns effective address display on.
\DI
Syntax: DI [<range>]
Use: Display a block of memory in unsigned integer (word) format.
Example: 'DI ARRAY' displays memory as unsigned decimal integers.
\DL
Syntax: DL [<range>]
Use: Display a block of memory in long real (8 byte 8087) format.
Example: 'DL 1234' displays memory in long real format.
\DN
Syntax: DN [<range>]
Use: Display a block of memory in signed integer (word) format.
Example: 'DN' displays memory as signed decimal integers.
\DR
Syntax: DR [!] <address> <symbol>
Use: Display a block of memory by fields as defined by a record definition.
Example: 'DR CS:0 PSP' displays the Program Segment Prefix.
\DS
Syntax: DS [<range>]
Use: Display a block of memory in short real (4 byte 8087) format.
Example: 'DS' displays memory in short real format.
\DW
Syntax: DW [<range>]
Use: Display a block of memory in word format.
Example: 'DW 1234' displays memory in word format.
\DX
Syntax: DX [<range>]
Use: Display a block of memory in long integer (4 byte) format.
Example: 'DX 1234' displays memory in long integer format.
\DY
Syntax: DY [<range>]
Use: Display a block of memory in long signed integer (4 byte) format.
Example: 'DY 2345' displays memory in long signed integer format.
\DZ
Syntax: DZ [<range>]
Use: Display a block of memory in ASCIIZ (ASCII nul terminated) format.
Example: 'DZ 100' displays memory in ASCII until a nul character is found.
\E
Syntax: E <address> [<list>]
Use: Enter changes to memory.
Example: 'E CS:IP 90' modifies the contents of CS:IP to 90H.
\EA
Syntax: EA <alias> [<name>]
Use: Define or redefine an alias.
Example: 'EA MX .C' sets the alias MX to '.C'.
\EB
Syntax: EB <address> <list>
Use: Enter bytes to memory.
Example: 'EB CS:IP 90' modifies the contents of CS:IP to 90H.
\ED
Syntax: ED <address> <address>
Use: Enter double words to memory.
Example: 'E 0:0 F00:BAA' modifies the contents of 0:0 to F00:BAA.
\ES
Syntax: ES <address> <symbol>
Use: Define or redefine symbol table entries.
Example: 'ES CS:IP ZORRO' defines the symbol ZORRO at CS:IP.
\EW
Syntax: EW <address> <number>
Use: Enter words to memory.
Example: 'EW DS:200 1234' modifies the contents of DS:200 to 1234H.
\F
Syntax: F <range> <list>
Use: Fill a block of memory with a byte/string pattern.
Example: 'F 3000:0 L200 0' fills 200H bytes at 3000:0 with zeros.
\G
Syntax: G [<address>]
Use: Set code breakpoints and execute the program.
Example: 'G MAIN' executes the program at full speed until MAIN is reached.
\G+
Syntax: G+
Use: Go to next instruction.
Example: 'G+' executes the current instruction and returns to Periscope.
\G=
Syntax: G= [<address>]
Use: Set CS:IP to the first address, then set any remaining code breakpoints
and execute the program.
Example: 'G=ES:1234' begins execution at ES:1234.
\GA
Syntax: GA [<address>]
Use: Same as the GT command, except that ALL instructions are traced.
Example: 'GA PRINTF' executes the program until PRINTF or any other
breakpoints are reached.
\GM
Syntax: GM [<address>]
Use: Same as the Go command, except that the monitor breakpoints are eval-
uated only at each code or hardware breakpoint. If a hit occurs on a monitor
break, execution stops.
Example: 'GM PRINTF' executes the program until PRINTF is reached. Then the
monitor breakpoints are evaluated. If no hit occurs, execution continues.
\GR
Syntax: GR
Use: Go to the return address on the stack (as displayed by the SR command).
Example: 'GR' executes the SR command to find the first return address and
sets a temporary code breakpoint at that address.
\GT
Syntax: GT [<address>]
Use: Same as the Go command, except that the monitor breakpoints are eval-
uated after each instruction.
Example: 'GT PRINTF' executes the program until PRINTF or any other break-
points are reached.
\H
Syntax: H <number> <arithmetic operator> <number>
Use: Perform hexadecimal arithmetic.
Example: 'H AX+BX' displays the result of adding AX and BX.
\I
Syntax: I <port>
Use: Read a byte from an I/O port.
Example: 'I 21' displays the byte read from port 21H.
\IC
Syntax: IC
Use: Compare the current interrupt vectors with their previously values.
Example: 'IC' compares the interrupts to their values when 'IS' was used.
\IR
Syntax: IR
Use: Restore saved interrupt vectors.
Example: 'IR' restores the previously saved interrupt vectors.
\IS
Syntax: IS
Use: Save the interrupt vectors.
Example: 'IS' saves the interrupt vectors.
\IW
Syntax: IW <port>
Use: Read a word from an I/O port.
Example: 'IW 20' displays the word read from port 20H.
\J
Syntax: J
Use: Execute (step) to the next instruction at the same level.
Example: 'J' executes the current instruction and returns control at the
next instruction.
\JL
Syntax: JL
Use: Jump (step) from one source code line to the next source code line.
Example: 'JL' steps to the next source line executed.
\K
Syntax: K
Use: Clear Periscope's screen.
Example: 'K' clears the screen.
\KI
Syntax: KI
Use: Initialize and clear Periscope's screen.
Example: 'KI' initializes the monitor and clears the screen.
\LA
Syntax: LA <address> <drive> <sectors>
Use: Load absolute disk sectors into memory.
Example: 'LA DS:100 A: 10 20' loads data from drive A into memory at DS:100,
starting with sector 10H for 20H sectors.
\LB
Syntax: LB <file>
Use: Load breakpoints and other commands from a PSB file.
Example: 'LB SAVE' loads and executes Periscope commands from SAVE.PSB.
\LD
Syntax: LD [*] [<file>]
Use: Load record and alias definitions from a PSD file.
Example: 'LD PS' loads record and alias definitions from PS.PSD.
\LF
Syntax: LF [<address>]
Use: Load a file from disk into memory.
Example: 'LF 3000:0' loads the previously named file into memory at 3000:0.
\LS
Syntax: LS * or <segment> <file>
Use: Clear symbol table or add symbols to symbol table from a PSS file.
Example: 'LS CS SAMPLE' loads symbols from SAMPLE.PSS and relocates them to
the current value of CS.
\M
Syntax: M <range> <address>
Use: Move or copy a block of memory to another location in memory.
Example: 'M B000:0 L1000 B800:0' copies the monochrome display to the color
display.
\N
Syntax: N <file>
Use: Enter data into the PSP for disk I/O and for use by Periscope to load
and write files.
Example: 'N C:PS.DEF' sets up the PSP to read or write the file C:PS.DEF.
\O
Syntax: O <port> <byte>
Use: Output a byte to an I/O port.
Example: 'O 301 FF' writes FFH to port 301H.
\OW
Syntax: OW <port> <word>
Use: Output a word to an I/O port.
Example: 'OW 300 1234' writes 1234H to port 300H.
\Q
Syntax: Q
Use: Display entry reason.
Example: 'Q' displays the reason Periscope was activated.
See also: QB, QC, QL, QR, and QS.
\QB
Syntax: QB
Use: Quit Periscope and perform a normal boot.
Example: 'QB' exits Periscope and boots the system.
\QC
Syntax: QC
Use: Quit Periscope and continue program execution.
Example: 'QC' exits Periscope and continues execution with no breaks set.
\QL
Syntax: QL
Use: Quit Periscope and perform a long boot.
Example: 'QL' exits Periscope and boots the system.
\QR
Syntax: QR
Use: Quit Periscope and return to the DOS prompt.
Example: 'QR' exits Periscope and returns to the DOS prompt.
\QS
Syntax: QS
Use: Quit Periscope and perform a short boot.
Example: 'QS' exits Periscope and boots the system.
\R
Syntax: R [<register>]
Use: Display and modify the current values of the registers and flags.
Example: 'R IP IP+1' increments IP.
\R+
Syntax: R+
Use: Move IP to the next physical instruction.
Example: If the current instruction is 'INT 3', R+ moves IP to the op code
following the 'INT 3'.
\R=
Syntax: R= <address>
Use: Reset CS:IP to the address specified.
Example: 'R=9000:100' resets CS:IP to 9000:100.
\RC
Syntax: RC
Use: Compare the current register values with their previously saved values.
Example: 'RC' compares the registers to their values when 'RS' was used.
\RR
Syntax: RR
Use: Restore the registers to a previously saved state.
Example: 'RR' restores the registers to their values when 'RS' was used.
\RS
Syntax: RS
Use: Save the registers for later restoration.
Example: 'RS' saves the registers for later use by the 'RR' command.
\S
Syntax: S [!x] <range> <list>
Use: Search memory for a byte/string pattern.
Example: 'S 0:0 FFFF "DOS" ' searches memory for the string 'DOS'.
\SA
Syntax: SA <range> <address>
Use: Search memory for references to a specified address.
Example: 'SA CS:IP L100 TOTAL' searches from CS:IP for 100H bytes for
references to the symbol TOTAL.
\SC
Syntax: SC [<byte>]
Use: Search the stack for CALLS.
Example: 'SC' searches the stack for addresses that indicate calls or soft-
ware interrupts and disassembles any matches.
\SD
Syntax: SD <range> <list>
Use: Search memory for a byte/string pattern and display any matches.
Example: 'SD 0:0 FFFF "DOS" ' searches memory for the string 'DOS' and
displays any matches.
\SR
Syntax: SR [<byte>]
Use: Search through the stack for RETurns.
Example: 'SR 10' examines the stack looking for return addresses that indi-
cate a CALL or an INT instruction.
\SU
Syntax: SU <range> <list>
Use: Search memory for instructions that match a pattern.
Example: 'SU CS:IP L100 "POP" ' searches from CS:IP for 100H bytes for any
'POP' mnemonics.
\T
Syntax: T [<number>]
Use: Trace the execution of the current program one instruction at a time.
Example: 'T 5' traces 5 instructions.
\TB
Syntax: TB [*] [![#<number>]]
Use: Display previous registers and instructions using the software trace
buffer.
Example: 'TB' displays the trace buffer.
\TI
Syntax: TI
Use: Trace the next instruction unless it is a software interrupt.
Example: 'TI' is just like 'T', except if the current instruction is INT xx,
which causes the interrupt to be executed as with the 'J' command.
\TL
Syntax: TL
Use: Trace instructions until the next source line is found.
Example: 'TL' single steps until the current instruction is a source line.
\TR
Syntax: TR [*] [![#<number>]]
Use: Display previous register values using the software trace buffer.
Example: 'TR' displays the register entries in the trace buffer.
\TU
Syntax: TU [*] [![#<number>]]
Use: Display previously executed instructions using the software trace
buffer.
Example: 'TU' shows the instructions saved in the trace buffer.
\U
Syntax: U [<range>]
Use: Disassemble memory into the current format.
Example: 'U MAIN' disassembles memory starting at the symbol MAIN.
See also: UA, UB, and US.
\UA
Syntax: UA [<range>]
Use: Enable ASM-only mode and disassemble memory.
Example: 'UA NEW_PAGE' disassembles memory starting at the symbol NEW_PAGE.
\UB
Syntax: UB [<range>]
Use: Enable Source/ASM mode and disassemble memory.
Example: 'UB FTOC#7' disassembles memory starting at the line symbol FTOC#7.
\US
Syntax: US [<range>]
Use: Enable source disassembly and disassemble memory.
Example: 'US MAIN' disassembles in source/asm mode starting at MAIN.
\V
Syntax: V <file>
Use: View a text file from within Periscope.
Example: 'V SAMPLE.ASM' displays the file SAMPLE.ASM.
See also: VS.
\VS
Syntax: VS
Use: View the current source file, presuming source disassembly is enabled.
Example: 'VS' displays the current source file.
\W
Syntax: W[<byte>] [<format>] <range> or W* or W<byte> *
Use: Set watch window to monitor memory locations.
Example: 'W0 I STEP' sets watch window zero to integer format and displays
the variable STEP.
\WA
Syntax: WA <address> <drive> <sectors>
Use: Write memory to absolute disk sectors.
Example: 'WA DS:100 A: 10 20' writes data to drive A from memory at DS:100,
starting with sector 10H for 20H sectors.
\WB
Syntax: WB <file>
Use: Write breakpoint, watch, & window settings to a PSB file.
Example: 'WB SAVE' writes the current breakpoint, watch, & window settings
to the file SAVE.PSB. This file can be read into Periscope using the 'LB'
command.
\WD
Syntax: WD <file>
Use: Write record and alias definitions to a PSD file.
Example: 'WD PS' writes the current record and alias definitions to PS.PSD.
\WF
Syntax: WF [<address>]
Use: Write a file from memory to disk.
Example: 'WF 3000:0' writes the currently named file to disk from memory
starting at 3000:0. The length is determined by registers BX and CX.
\WS
Syntax: WS <segment> <file>
Use: Write the current symbols to a PSS file.
Example: 'WS CS SAMPLE' writes the current symbols to SAMPLE.PSS after
subtracting the current value of CS from all segments.
\X\XH
Syntax: X <number> or XH <number>
Use: Translate a one to four digit hexadecimal number or a register to its
decimal, octal, binary, and ASCII equivalents.
Example: 'X AX' converts the value of register AX to decimal, octal, binary,
and ASCII.
\XA
Syntax: XA <address>
Use: Translate an address (segment and offset) into its equivalent five-byte
absolute address.
Example: 'XA CS:IP' converts CS:IP to its absolute address.
\XD
Syntax: XD <decimal number>
Use: Translate a one to five digit decimal number to its hexadecimal, octal,
binary, and ASCII equivalents.
Example: 'XD 1234' converts the decimal number to hex, octal, binary, and
ASCII.
\/"
Syntax: /"
Use: Copy Periscope's screen to the other screen of a dual-monitor system.
Example: '/"' copies Periscope's screen from the current display to the
other display.
\/1
Syntax: /1
Use: Make symbol table 1 active.
Example: '/1' makes symbol table 1 active.
\/2
Syntax: /2
Use: Make symbol table 2 active, assuming that two symbol tables are in use.
Example: '/2' makes symbol table 2 active.
\/A
Syntax: /A
Use: Turn Periscope's DOS access on or off.
Example: '/A' toggles Periscope's use of DOS on and off.
\/C
Syntax: /C [<byte>]
Use: Display and set Periscope screen colors.
Example: '/C 17' sets screen colors to white on blue.
\/D
Syntax: /D [<byte>]
Use: Change the active data window.
Example: '/D' switches to the next data window.
\/E
Syntax: /E [<file>]
Use: Turn screen output co-direction (echo) on or off.
Example: '/E D:ULIST' starts echoing Periscope's output to the file D:ULIST.
Another '/E' ends echo mode.
\/K
Syntax: /K [<file>]
Use: Turn keyboard input capture on or off.
Example: '/K KEEPIT' starts capturing input keystrokes to the file KEEPIT.
Another '/K' ends keyboard capture.
\/L
Syntax: /L
Use: Toggle display of line number labels in UA mode.
Example: '/L' enables or disables the display of source line labels in
UA mode.
\/M
Syntax: /M <byte>
Use: Sets message level for Microsoft Windows.
Example: '/M 0' turns off all Windows messages.
\/N
Syntax: /N [<address>]
Use: Display the next lower, equal, and next higher symbols.
Example: '/N' displays the next lower, equal, higher symbols relative to
CS:IP.
\/Q
Syntax: /Q
Use: Suppresses Periscope's output for the rest of the command line.
Example: '/Q;TB !' hides the output of the 'TB' command.
\/R
Syntax: /R <symbol>
Use: Remove a symbol from the symbol table.
Example: '/R FOO' removes the symbol FOO from the symbol table.
\/S
Syntax: /S <segment> <segment>
Use: Make global changes to the values of segments in the symbol table.
Example: '/S F000 DS' changes the segment value for symbols whose segment is
F000 to the current value of DS.
\/T
Syntax: /T [?] [*] [#] [<byte>]
Use: Indicate interrupts that are to be traced when the GT command is used.
Example: '/T #' forces all interrupts to be traced when GT is used.
\/U
Syntax: /U <byte> [<address>]
Use: Perform user-written code from Periscope.
Example: '/U 87' executes user exit number 87.
\/W
Syntax: /W [<token>] [:<byte>] [.<color>], where <token> is D|R|S|U|V|W.
Use: Change Periscope's windows.
Example: '/W R D:2 D:4 U:8' sets a register window, two data windows, and
a disassembly window.
\/X
Syntax: /X
Use: Exit to DOS, presuming DOS is not busy and memory has been freed.
Example: '/X' loads a new COMMAND.COM and exits to DOS. To return to
Periscope, enter 'EXIT' at the DOS prompt.
\@3
Syntax: Alt-3
Use: Toggle the vertical 386 register display on and off.
Example: Alt-3 displays the 386 registers on a 386 or later system.
\@A
Syntax: [<alias>] Alt-A
Use: Display aliases that match the alias or fragment entered.
Example: Enter 'X' and press Alt-A to display all aliases that start with X.
Default: F5
\@B
Syntax: Alt-B
Use: Toggle double spacing of printer output on and off.
Example: Alt-B causes output sent to the printer by PS to be double spaced.
\@E
Syntax: [<symbol>] Alt-E
Use: Display record definitions that match the name or name fragment entered.
Example: Alt-E displays all record definitions.
Default: F7
\@G
Syntax: Alt-G
Use: Toggle the pause mode through its three states.
Example: Alt-G moves from 'Pause off' to 'Pause on' to 'Pause/clear on'.
Default: F6
\@H
Syntax: Alt-H
Use: Toggle call tracing on and off.
Example: Alt-H followed by GT shows the call trace history for a program.
Default: F9
\@I
Syntax: [<symbol>] Alt-I
Use: Display symbols that match the name or name fragment entered.
Example: Enter '_' and press Alt-I to display all symbols starting with _.
Default: F8
\@L
Syntax: Alt-L
Use: Toggle display of commands generated by menu system on and off.
Example: Alt-L turns off the display of commands from the menu system.
\@M
Syntax: Alt-M
Use: Activate the menu system.
Example: Alt-M enters the menu system.
\@N
Syntax: Alt-N
Use: Toggle screen swap on and off.
Example: Alt-N disables screen swap on a single monitor system.
Default: F2
\@O
Syntax: Alt-O
Use: Display the program's screen on a single-monitor system.
Example: Alt-O switches from Periscope's screen to the program's screen.
Default: F10
\@P
Syntax: Alt-P
Use: Generate a form feed to the parallel printer.
Example: Alt-P positions the paper in the printer to the top of the form.
\@R
Syntax: Alt-R
Use: Toggle the vertical register display on and off.
Example: Alt-R displays the registers in a vertical window.
\@S
Syntax: Alt-S
Use: Toggle the stack display on and off.
Example: Alt-S displays the stack in a vertical window.
\@T
Syntax: Alt-T
Use: Toggle code timing on and off.
Example: Alt-T enables the micro-second resolution code timing.
Default: F1
\@W
Syntax: Alt-W
Use: Select active window. Switch between Data, Unasm, and Watch windows.
Example: Alt-W changes the active window so that scrolling keys can be used
to move within a window.
\^9
Syntax: Ctrl-F9
Use: Restore the window settings used when PS was loaded.
Example: Ctrl-F9 restores Periscope's windows to their original state.
\^0
Syntax: Ctrl-F10
Use: Restore the window settings to their last setting.
Example: Ctrl-F10 restores Periscope's windows to their last state.
\^B
Syntax: Ctrl-B
Use: Set a code breakpoint on the address at the top of the unasm window.
Example: Ctrl-B issues a BC command for the address at the top of the
disassembly window.
\^G
Syntax: Ctrl-G
Use: Go to the location at the top of the unasm window.
Example: Ctrl-G goes to the address at the top of the disassembly window.
\^P
Syntax: Ctrl-P
Use: Toggle printer output on and off.
Example: Ctrl-P begins outputting the non-windowed part of the screen to the
parallel printer.
\^R
Syntax: Ctrl-R
Use: Set CS:IP to the address at the top of the unasm window.
Example: Ctrl-R resets the current instruction to the top of the disassembly
window.
\