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rcmap2.100
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2006-10-19
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500 lines
------------------------
| Model 100 System Map |
------------------------
ROM: Part II
Copyright 1985
Revision Date: 09/30/85
Compiled and Researched by:
Robert D. Covington
Systems Information Management Consultants
[Not associated with The Covington Group, N. Y., N. Y.]
This document may be duplicated and distributed free of
charge to any individuals who desire it. Any duplications of
this document, however, must inluce all of the information
contained here-in, with no deletions or changes.
The author and distributors of this document make no
expressed or implied warrantees as to the validity of the
information contained here in.
0DABH - Main Evaluation Routine. This routine handles all
evaluations of math operations and functions.
Entry:
HL - Points to text to evaluate plus 1. This routine
assumes that an RST 10H was executed prior to
entering the routine. To adjust for this, either
execute a RST 10H or INC HL prior to entering the
routine.
Exit:
HL - Incremented past evaluated expression
FAC1 - Usually contains the result of the evaluated
expression.
0F0DH - Integer Divide (FAC1=DE/HL)
0F1CH - Evaluate the function in the buffer pointed to by HL.
Entry:
HL - Points to the buffer containing the compressed
function and parameters.
Exit:
FAC1 - Usually contains the result of the function.
0F47H - ERR Function
0F56H - ERL Function
0F7EH - VARPTR Function
0F86H - VARPTR(#buffer) Function
0F92H - VARPTR(variable) Function
0FDAH - Variable evaluation routine
0FE8H - Get the character pointed to by HL, convert it to upper case
if needed, and place it in the A register.
Entry:
HL - Points to buffer
Exit:
A - Next character in buffer
0FE9H - Convert the character in the A register to uppercase if
necessary.
Entry:
A - Character
Exit:
A - Character converted to UC
1054H - NOT Function
1069H - RST 28H routine (see 28H).
108CH - OR Function
1097H - AND Function
10A2H - XOR Function
10ADH - EQV Function
10B5H - IMP Function
10C8H - LPOS Function
10CEH - POS Function
10D1H - Load the integer in the A register into FAC1.
Entry:
A - Integer from 0-255 to put in FAC1
Exit:
A - Destroyed
10E6H - Check for a running program. If a program is not running,
generate an Illegal Direct (ID) error.
Exit:
A - Destroyed
Z flag - Reset if program is running
10EFH - Generate ID error
1100H - INP Function
110CH - OUT Statement
1112H - Evaluate the expression in the buffer pointed to by HL
leaving the result in DE. If the result is greater than
32767, an overflow error is generated.
Entry:
HL - Points to buffer of expression to evaluate. The
buffer must end with a null or colon.
Exit:
DE - Result of expression
HL - Incremented past expression in buffer
A - Destroyed
Z flag - Set if the evaluated expression is an 8 bit
number. If so, the result of the operation will
be just in the E register.
1113H - Same as 1112H except that the evalutation starts at HL-1.
112DH - Evaluate the expression in the buffer pointed to by HL
leaving the result in the A register. If the result is
greater than 255, a function error is generated. If the
result is greater than 32767, an overflow error is generated.
Entry:
HL - Points to buffer to be evaluated. The buffer
must end with a null or colon.
Exit:
HL - Incremented past expression in buffer
A & E - Evaluated expression
D - Destroyed
112EH - Same as 112DH except that evaluation starts at HL-1.
113BH - LLIST Statement
1140H - LIST Statement
11A2H - Send the buffer pointed to by HL to the screen. Text must
end with a null.
Entry:
HL - Points to print buffer
Exit:
HL - Points to ending null
A = 0
1284H - PEEK Function
128BH - POKE Function
1297H - Evaluate the expression in the buffer pointed to by HL
leaving the result in DE. This routine differs from 1112H in
that it will properly evaluate numbers up to 65535. If the
result of the operation is greater than 65535, an overflow
error will occur.
Entry:
HL - Points to buffer to evaluate. The buffer must
end with a null or colon.
Exit:
DE - Evaluated expression
HL - Incremented past expression in buffer.
12CBH - Wait for a key from the keyboard. All function keys are
converted into their pre-programmed text.
Exit:
A - Character entered
C flag - Set if special character
13A5H - Toggle function key label line if enabled.
Exit:
A - Destroyed
13DBH - Check keyboard queue for pending characters
Exit:
A - Destroyed
Z flag - Set if no characters pending
1419H - POWER Statement
1431H - Normal TRAP (low power) interrupt routine
143FH - Turn off computer
1459H - POWER CONT Statement
1461H - POWER ON Statement
1470H - Output character to printer without tab expansions
Entry:
A - Character to print
148AH - Start tape and load tape header. If an error or Shift Break
is pressed, generate an I/O error.
1494H - Generate I/O error
14A8H - Turn cassette motor on
14AAH - Turn cassette motor off
14B0H - Read a byte from tape and update checksum
Entry:
C - Current checksum
Exit:
A - Character read off tape
C - Updated checksum
14C1H - Write a byte to tape and update checksum
Entry:
A - Character to write to tape
C - Current checksum
Exit:
C - Updated checksum
14D2H - LCD Device control block
14D8H - LCD and LPT file open routine
14E5H - LCD file output routine
14EDH - Pop all registers off stack in the order AF, BC, DE, and HL.
This routine is only useful if jumped to. If a call is done,
stack integrity is lost.
14F2H - CRT device control block
14FCH - RAM device control block
1506H - RAM file open routine
158DH - RAM file close routine
15ACH - RAM file output routine
15C4H - RAM file input routine
161BH - Special RAM file I/O
167FH - CAS device control block
1689H - CAS file open routine
16ADH - CAS file close routine
16C7H - CAS file output routine
16D2H - CAS file input routine
1754H - LPT device control block
175AH - LPT file output routine
1762H - COM device control block
176CH - MDM file open routine
176DH - COM file open routine
179EH - COM file close routine
17A8H - COM and MDM file output routine
17B0H - COM and MDM file input routine
17CAH - Special COM and MDM I/O routine
17D1H - MDM device control block
17D8H - MDM file close routine
17E6H - Set RS232 parameters to string pointed to by HL. String must
be in the same format as used by TELCOM.
Entry:
HL - Points to parameter string
D - 2 if Modem is used
C flag - Set if RS232, reset of Modem
1877H - WAND device control block
1889H - EOF Function
1904H - TIME$ Function
190FH - Read time from system clock and store it in the buffer
pointed to by HL
Entry:
HL - Points to start of time buffer. The buffer will
be filled with the time in the format hh:mm:ss.
Exit:
HL - Incremented to the end of the buffer.
All other registers destroyed
1924H - DATE$ function
192FH - Read date and store it in the buffer pointed to by HL.
Entry:
HL - Points to start of date buffer. The buffer will
be filled with the date in the format mm/dd/yy.
Exit:
HL - Incremented to the end of the buffer
All other registers destroyed
1955H - DAY$ function
1962H - Read day and store it in the buffer pointed to by HL.
Entry:
HL - Points to start of day buffer. The buffer will
be filled with the current 3 letter day
abbreviation.
Exit:
HL - Incremented to the end of the buffer
All other registers destroyed.
19A0H - Update the in memory clock values starting at F923H with the
time in the internal hardware clock
19ABH - TIME$ Statement
19B3H - Update the internal clock chip with the values in the in
memory time table starting at F923H
19BDH - DATE$ Statement
19F1H - DAY$ Statement
1A78H - IPL Statement
1A96H - Erase current IPL program (table)
Exit:
A - Destroyed
1A9EH - COM and MDM Statements
1AB2H - KEY() Statement
1AC3H - KEY STOP/ON/OFF Statements
1B0FH - ON TIME$ Statement
1B32H - RST 7.5 interrupt routine (see 3CH).
1BB8H - KEY Statement
1BBDH - KEY LIST Statement
1BE0H - Send B number of characters from the buffer pointed to by HL
to the screen. Any control characters (0-31 and 127) are
converted to spaces for printing.
Entry:
HL - Points to buffer to print
B - Number of characters to print
Exit:
A - Destroyed
HL - Incremented past last byte printed.
1C57H - PSET Statement
1C66H - PRESET Statement
1C6DH - LINE (graphic) Statement
1D90H - CSRLIN Function
1D9BH - MAX Function
1DA7H - MAXRAM Function
1DB2H - MAXFILES Functions
1DB9H - HIMEM Function
1DC3H - WIDTH Statement
1DC5H - SOUND Statement
1DE5H - SOUND OFF Statement
1DE6H - SOUNF ON Statement
1DECH - MOTOR Statement
1DF1H - MOTOR ON Statement
1DF5H - MOTOR OFF Statement
1DFAH - CALL Statement
1E22H - SCREEN Statement
1E5EH - LCOPY Statement. This routine will print the textual
contents of the screen on the printer..
Exit:
HL, DE, and AF are destroyed.
1F3AH - FILES Statement
1F42H - Display Catalog
Exit:
All registers are destroyed
1F91H - KILL Statement
1FBEH - Kill a text file
Entry:
HL - Address of directory entry
DE - Start address of file
2037H - NAME Statement
20FEH - NEW Statement
21FAH - Count the number of characters in the buffer pointed to by
HL. Buffer ends with a null
Entry:
HL - Points to the buffer to count
Exit:
E - Number of characters in the buffer pointed to by
HL
A - Destroyed
220FH - Open a text file
Entry:
(FC93H) - Filename (8 bytes). DO not required
Exit:
HL - Points to start of text file
DE - Points to directory entry
C flag - Set if file already exist, reset if it is a new
file.
2280H - CSAVE Statement
22B9H - Save the buffer pointed to by HL to tape. After execution of
this routine, return resumes at BASIC ready.
Entry:
HL - Start of buffer to save
DE - Number of characters to save
Exit:
All registers destroyed
22CCH - SAVEM Statement
22DDH - CSAVEM Statement
2377H - CLOAD Statement
2413H - Load a record from the cassette and put it in the buffer
pointed to by HL.
Entry:
HL - Points to start of receiving buffer
DE - Number of bytes to load.
Exit:
All registers destroyed
2491H - LOADM and RUNM Statement
24A7H - CLOADM Statement
2542H - Move memory pointed to by HL to the memory pointed to by DE
for B number of bytes. HL and DE are incremented on each
cycle of the move.
Entry:
HL - Points to the start of the source memory
DE - Points to the start of the destination memory
B - Number of bytes to move
Exit:
HL & DE - Incremented past last byte moved
A - Destroyed
260BH - CAS open for output for BASIC files
260EH - CAS open for output for TEXT files
2611H - CAS open for output for Command files
2650H - CAS open for input for BASIC files
2653H - CAS open for input for text files
2656H - CAS open for input for Command files
273AH - STR$ Function
27B1H - Print buffer pointed to by HL until a null (00H) or '"' is
found. Print begins at current cursor position.
Entry:
HL - Points to buffer to be printed
290FH - Move the memory pointed to by BC to the memory pointed to by
DE L times. BC and DE are incremented on each cycle of the
move.
Entry:
BC - Points to the start of the source memory
DE - Points to the start of the destination memory
L - Number of bytes to move
Exit:
HL & DE - Incremented past last byte moved
A - Destroyed