diff --git a/Doc/ChangeLog.txt b/Doc/ChangeLog.txt index c6ab07b7..586a8ace 100644 --- a/Doc/ChangeLog.txt +++ b/Doc/ChangeLog.txt @@ -24,6 +24,7 @@ Version 2.9.1 - WBW: Refactored DSKY code - S?K: Initial support for Easy Z80 - PMS: Enhance VDU driver to support alternative screen dimensions +- WBW: DDT and DDTZ modified to use RST 30 instead of RST 38 to avoid conflicts with IM 1 interrupts Version 2.9.0 ------------- diff --git a/Doc/DDTZ.doc b/Doc/DDTZ.doc new file mode 100644 index 00000000..46da2d3b --- /dev/null +++ b/Doc/DDTZ.doc @@ -0,0 +1,564 @@ + + DDTZ v2.7 + by C.B. Falconer + edited by George A. Havach + +Introduction: +============ +DDTZ v2.7 is a complete replacement for DDT, Digital Research's +famous Dynamic Debugging Tool, with improved functionality, bug +extermination, and full Z80 support. In general, DDTZ is fully +compatible with the original utility, but it has extra and +extended commands and many fewer quirks. All Z80-specific +instructions can be (dis)assembled, though in Intel rather then +Zilog format. Furthermore, DDTZ will correctly trace ('T' and 'U' +commands) both 8080 and Z80 instructions, depending on which CPU +is operating. On startup, the program announces which CPU it is +running on. + +DDTZ v2.7 now handles the 64180 added opcodes. It does NOT test +for a 64180 CPU, since this cannot be done without executing +illegal Z80 instructions, which in turn will crash some +simulators. However v2.7 does not execute any 64180 instructions +internally, only in the subject program. + +This issue supplies the "M" version assembled, to avoid errors +when switching between MSDOS and CPM systems. The command table +is updated accordingly. Most CPM users are also MSDOS users, but +not vice-versa. + +The program is invoked by typing + + ddtz +or + ddtz [d:]filespec + +In the second form, DDTZ will load the specified file into +memory starting at 0100H, unless it's a .HEX file that sets its +own load address. Besides reporting the NEXT free address and +the PC (program counter) after a successful load, DDTZ also shows +the number of memory pages needed for a SAVE. Instead of having +to write all this down, just use the 'X' command at any time to +redisplay these three values for the current application. + +NOTE: loading more code above the NEXT pointer revises these + values. + +As in DDT, when a program is loaded above the area holding the +'A' and 'U' (and now 'W') command code, these commands are +disabled, and the extra memory is released to the user. Thus, +DDTZ can occupy as little as 3K total memory space. Unlike DDT, +however, DDTZ will not overwrite itself or the system on program +loads (except .HEX files). + +At initialization, the stack pointer (SP) points to a return to +DDTZ, just like for the CCP. Thus, programs that normally return +to the CCP will be returned to DDTZ. The 'B' command +reinitializes this condition. + + +The intercept vector copies the BDOS version number, etc., so +an object program does not know that DDTZ is running (except +for BIOS-BDOS vector size). Thus, programs that check the version +number should execute correctly under DDTZ. + +All input parameters can now be entered in any of three formats: + + (1) hexadecimal (as in DDT), + (2) decimal, by adding a leading '#' character, + (3) ASCII, by enclosing between either single or double + quotes; either one or two characters are allowed. + +Leading blanks in command lines and parameters are absorbed. +Either a comma or a (single) space is a valid delimiter. +Either uppercase or lowercase input is accepted. + +The default command (for anything not otherwise recognizable) +is 'H'. This allows convenient calculation, along with the other +features described below. So, to convert a number, just enter +it! + +As in DDT, the prompt character is '-', and the only error +message is the query ('?'), which generally kicks you back to +command mode. + +New Commands (Over DDT): +======================= + +NOTE: letters in parenthesis, e.g. "(U)", show the equivalent + command for DDTZM version (compatible with MSDOS debug). + + @ Sets or shows (with no parameter) the internally stored + "base" value. Also used with the 'S' and 'D' commands as + an optional parameter (though without the '@') to display + memory from an arbitrary base marker (offset). When set to + zero (the default), it does not affect any screen displays. + + B B)egin: resets the USER stack pointer to its initial value, + such that any program that exits by an RET will return to + DDTZ. DDTZ provides a default stack space of + approximately 24 bytes for user programs. + + C C)ompare first_address,last_address,against_address: shows + all the byte differences between two memory areas, in the + format + + XXXX aa YYYY bb + + where XXXX and YYYY are the comparative memory addresses, + and aa and bb are the corresponding byte values. Can be + used to verify the identity of two files by first + loading them into different memory areas with the 'R' + command (see below). + + + W Write: stores the modified memory area to disk under the + (K) filename specified by the 'I' command, overwriting the + original file from which it was loaded (the user is queried + before doing so). By default, the image of memory from + 0100H through the "NEXT" value -1 is saved. "K first_addr, + last_address" overrides this and allows writing ANY memory + area to a file. Almost a necessity for CPM 3.0 (no SAVE!). + K)eep on DDTZ + + X eXamine: redisplays the "NEXT PC SAVE" report at any time. + (Q) Q)uery size on DDTZ. + + S S)earch first_address, last_addr, value: searches the + (W) specified memory area for the value (a 16-bit word, not a + byte) and shows the locations of all such. Very useful for + finding CALL's or JMP's to a particular address, etc. + W)here on DDTZ + + Y Y)our_option parm1,parm2,address: executes an arbitrary + routine at the specified address, with the BC and DE + registers set to parm1 and parm2, respectively. + + Z Displays (but does not alter) the Z80's alternate register + set, including the index registers (disabled if running on + an 8080). On Z80's, automatically included as the last + part of the display by the 'X' command. + + +Based (Offset) Displays: +======================= + +The 'D' and 'E' commands can use a stored base value (offset), +as set by the '@' command. The current @ value may be +overridden for a single execution of these commands by adding the +base as an extra parameter in the command line. The effect is +to add this value to the first/last address and display +accordingly. The address listing on the left becomes XXXX:YYYY, +where XXXX is the offset address and YYYY is the actual memory +address being displayed. For example, if you have a data area +located at 42B7H and wish to preserve easy access, just enter +"@42b7". Now, "d0,3f" will dump memory starting at 4237H. + + +Further Changes from DDT: +======================== + + A A)ssemble now accepts the full Z80 as well as 8080 + instruction set, although it expects them in Intel rather + than Zilog format (see notes below under the 'L' + command). When in doubt, see the mnemnonic list below. + + D D)isplay or D)ump will accept an optional third parameter + to set the base value for a single execution only. Format + has been cleaned up. + + H H)ex_arithmetic on two values also shows their + difference in decimal. With only one value, converts to + hexadecimal, decimal, and ASCII (low-order byte only). + + + N N)ame now allows drive specification (d:...) and sets up + (I) the complete command line, including both FCB's (at + addresses 005CH and 006CH). The tail (stored at 0081H up) + is NOT upshifted. + I)nput on DDTZ + + U U)nassemble now displays the raw hexcode, especially handy + (L) when examining non-code areas. Intel (8080 style) mnemonics + are used, so some disassembled instructions may look + strange. E.g., the Z80's 'IN B,(C)' and 'OUT (C),B' become + 'INP B' and 'OUTP B', respectively; 'LD (nnnn),BC' becomes + 'SBCD nnnn', 'ADD IX, BC' becomes 'DADX B', and 'JP (IX)' + becomes 'PCIX'. + L)ist on DDTZ + + L L)oad now permits loading a file into memory with an + (R) offset, which is added to the default load address of + 0100H. When reading in a .HEX file with a preset bias, + the 'R' command will not transfer control to an invalid + execution point. Another execution of the 'R' command will + reread the input file, e.g.: + + n blah + l + ...modify the code and generally mess about... + l + + The original file is reloaded, and the modifications are + removed. + R)ead on DDTZ + + E E)nter, like D)isplay, now accepts an optional second + (S) parameter to set the base value for a single execution + only. + S)ubstitute or S)et on DDTZ + + T T)rap/trace on termination now shows the complete CPU + state. Traps and traces no longer lock up when a user RST + 7 instruction is executed. Tracing of BDOS/BIOS calls is + heavily trun cated, avoiding clutter and preventing system + crashes. + +NOTE: Most of the UNDOCUMENTED Z80 op-codes are handled. Others + can crash the system. + + R R)egisters also shows what two-byte values the HL and SP + (X) registers are actually pointing to. On Z80's, displays the + alternate register set. + eX)amine on DDTZ + +NOTE: Any use of the 'W' or 'L' command resets the system DMA + transfer address to the standard default value of 0080H. + + +; This is the output of DDTZ when disassembling OPTYPE.TRY +NOP LDA 06A4 MOV M,H +LXI B,06A4 DCX SP MOV M,L +STAX B INR A HLT +INX B DCR A MOV M,A +INR B MVI A,20 MOV A,B +DCR B CMC MOV A,C +MVI B,20 MOV B,B MOV A,D +RLC MOV B,C MOV A,E +EXAF MOV B,D MOV A,H +DAD B MOV B,E MOV A,L +LDAX B MOV B,H MOV A,M +DCX B MOV B,L MOV A,A +INR C MOV B,M ADD B +DCR C MOV B,A ADD C +MVI C,20 MOV C,B ADD D +RRC MOV C,C ADD E +DJNZ 0134 MOV C,D ADD H +LXI D,06A4 MOV C,E ADD L +STAX D MOV C,H ADD M +INX D MOV C,L ADD A +INR D MOV C,M ADC B +DCR D MOV C,A ADC C +MVI D,20 MOV D,B ADC D +RAL MOV D,C ADC E +JR 0134 MOV D,D ADC H +DAD D MOV D,E ADC L +LDAX D MOV D,H ADC M +DCX D MOV D,L ADC A +INR E MOV D,M SUB B +DCR E MOV D,A SUB C +MVI E,20 MOV E,B SUB D +RAR MOV E,C SUB E +JRNZ 0134 MOV E,D SUB H +LXI H,06A4 MOV E,E SUB L +SHLD 06A4 MOV E,H SUB M +INX H MOV E,L SUB A +INR H MOV E,M SBB B +DCR H MOV E,A SBB C +MVI H,20 MOV H,B SBB D +DAA MOV H,C SBB E +JRZ 0134 MOV H,D SBB H +DAD H MOV H,E SBB L +LHLD 06A4 MOV H,H SBB M +DCX H MOV H,L SBB A +INR L MOV H,M ANA B +DCR L MOV H,A ANA C +MVI L,20 MOV L,B ANA D +CMA MOV L,C ANA E +JRNC 0134 MOV L,D ANA H +LXI SP,06A4 MOV L,E ANA L +STA 06A4 MOV L,H ANA M +INX SP MOV L,L ANA A +INR M MOV L,M XRA B +DCR M MOV L,A XRA C +MVI M,20 MOV M,B XRA D +STC MOV M,C XRA E +JRC 0134 MOV M,D XRA H +DAD SP MOV M,E XRA L + + +XRA M JPE 06A4 SLAR M +XRA A XCHG SLAR A +ORA B CPE 06A4 SRAR B +ORA C XRI 20 SRAR C +ORA D RST 5 SRAR D +ORA E RP SRAR E +ORA H POP PSW SRAR H +ORA L JP 06A4 SRAR L +ORA M DI SRAR M +ORA A CP 06A4 SRAR A +CMP B PUSH PSW SLLR B +CMP C ORI 20 SLLR C +CMP D RST 6 SLLR D +CMP E RM SLLR E +CMP H SPHL SLLR H +CMP L JM 06A4 SLLR L +CMP M EI SLLR M +CMP A CM 06A4 SLLR A +RNZ CPI 20 SRLR B +POP B RST 7 SRLR C +JNZ 06A4 RLCR B SRLR D +JMP 06A4 RLCR C SRLR E +CNZ 06A4 RLCR D SRLR H +PUSH B RLCR E SRLR L +ADI 20 RLCR H SRLR M +RST 0 RLCR L SRLR A +RZ RLCR M BIT 0,B +RET RLCR A BIT 0,C +JZ 06A4 RRCR B BIT 0,D +CZ 06A4 RRCR C BIT 0,E +CALL 06A4 RRCR D BIT 0,H +ACI 20 RRCR E BIT 0,L +RST 1 RRCR H BIT 0,M +RNC RRCR L BIT 0,A +POP D RRCR M BIT 1,B +JNC 06A4 RRCR A BIT 1,C +OUT 20 RALR B BIT 1,D +CNC 06A4 RALR C BIT 1,E +PUSH D RALR D BIT 1,H +SUI 20 RALR E BIT 1,L +RST 2 RALR H BIT 1,M +RC RALR L BIT 1,A +EXX RALR M BIT 2,B +JC 06A4 RALR A BIT 2,C +IN 20 RARR B BIT 2,D +CC 06A4 RARR C BIT 2,E +SBI 20 RARR D BIT 2,H +RST 3 RARR E BIT 2,L +RPO RARR H BIT 2,M +POP H RARR L BIT 2,A +JPO 06A4 RARR M BIT 3,B +XTHL RARR A BIT 3,C +CPO 06A4 SLAR B BIT 3,D +PUSH H SLAR C BIT 3,E +ANI 20 SLAR D BIT 3,H +RST 4 SLAR E BIT 3,L +RPE SLAR H BIT 3,M +PCHL SLAR L BIT 3,A + + +BIT 4,B RES 3,D SET 2,H +BIT 4,C RES 3,E SET 2,L +BIT 4,D RES 3,H SET 2,M +BIT 4,E RES 3,L SET 2,A +BIT 4,H RES 3,M SET 3,B +BIT 4,L RES 3,A SET 3,C +BIT 4,M RES 4,B SET 3,D +BIT 4,A RES 4,C SET 3,E +BIT 5,B RES 4,D SET 3,H +BIT 5,C RES 4,E SET 3,L +BIT 5,D RES 4,H SET 3,M +BIT 5,E RES 4,L SET 3,A +BIT 5,H RES 4,M SET 4,B +BIT 5,L RES 4,A SET 4,C +BIT 5,M RES 5,B SET 4,D +BIT 5,A RES 5,C SET 4,E +BIT 6,B RES 5,D SET 4,H +BIT 6,C RES 5,E SET 4,L +BIT 6,D RES 5,H SET 4,M +BIT 6,E RES 5,L SET 4,A +BIT 6,H RES 5,M SET 5,B +BIT 6,L RES 5,A SET 5,C +BIT 6,M RES 6,B SET 5,D +BIT 6,A RES 6,C SET 5,E +BIT 7,B RES 6,D SET 5,H +BIT 7,C RES 6,E SET 5,L +BIT 7,D RES 6,H SET 5,M +BIT 7,E RES 6,L SET 5,A +BIT 7,H RES 6,M SET 6,B +BIT 7,L RES 6,A SET 6,C +BIT 7,M RES 7,B SET 6,D +BIT 7,A RES 7,C SET 6,E +RES 0,B RES 7,D SET 6,H +RES 0,C RES 7,E SET 6,L +RES 0,D RES 7,H SET 6,M +RES 0,E RES 7,L SET 6,A +RES 0,H RES 7,M SET 7,B +RES 0,L RES 7,A SET 7,C +RES 0,M SET 0,B SET 7,D +RES 0,A SET 0,C SET 7,E +RES 1,B SET 0,D SET 7,H +RES 1,C SET 0,E SET 7,L +RES 1,D SET 0,H SET 7,M +RES 1,E SET 0,L SET 7,A +RES 1,H SET 0,M DADX B +RES 1,L SET 0,A DADX D +RES 1,M SET 1,B LXI X,06A4 +RES 1,A SET 1,C SIXD 06A4 +RES 2,B SET 1,D INX X +RES 2,C SET 1,E DADX X +RES 2,D SET 1,H LIXD 06A4 +RES 2,E SET 1,L DCX X +RES 2,H SET 1,M INR [X+05] +RES 2,L SET 1,A DCR [X+05] +RES 2,M SET 2,B MVI [X+05],20 +RES 2,A SET 2,C DADX SP +RES 3,B SET 2,D MOV B,[X+05] +RES 3,C SET 2,E MOV C,[X+05] + + +MOV D,[X+05] DSBC B DADY B +MOV E,[X+05] SBCD 06A4 DADY D +MOV H,[X+05] NEG LXI Y,06A4 +MOV L,[X+05] RETN SIYD 06A4 +MOV [X+05],B IM0 INX Y +MOV [X+05],C LDIA DADY Y +MOV [X+05],D INP C LIYD 06A4 +MOV [X+05],E OUTP C DCX Y +MOV [X+05],H DADC B INR [Y+05] +MOV [X+05],L LBCD 06A4 DCR [Y+05] +MOV [X+05],A RETI MVI [Y+05],2 +MOV A,[X+05] LDRA DADY SP +ADD [X+05] INP D MOV B,[Y+05] +ADC [X+05] OUTP D MOV C,[Y+05] +SUB [X+05] DSBC D MOV D,[Y+05] +SBB [X+05] SDED 06A4 MOV E,[Y+05] +ANA [X+05] IM1 MOV H,[Y+05] +XRA [X+05] LDAI MOV L,[Y+05] +ORA [X+05] INP E MOV [Y+05],B +CMP [X+05] OUTP E MOV [Y+05],C +POP X DADC D MOV [Y+05],D +XTIX LDED 06A4 MOV [Y+05],E +PUSH X IM2 MOV [Y+05],H +PCIX LDAR MOV [Y+05],L +SPIX INP H MOV [Y+05],A +RLCR [X+05] OUTP H MOV A,[Y+05] +RRCR [X+05] DSBC H ADD [Y+05] +RALR [X+05] shld 06A4 ADC [Y+05] +RARR [X+05] RRD SUB [Y+05] +SLAR [X+05] INP L SBB [Y+05] +SRAR [X+05] OUTP L ANA [Y+05] +SRLR [X+05] DADC H XRA [Y+05] +BIT 0,[X+05] lhld 06A4 ORA [Y+05] +BIT 1,[X+05] RLD CMP [Y+05] +BIT 2,[X+05] INP M POP Y +BIT 3,[X+05] OUTP M XTIY +BIT 4,[X+05] DSBC SP PUSH Y +BIT 5,[X+05] SSPD 06A4 PCIY +BIT 6,[X+05] INP A SPIY +BIT 7,[X+05] OUTP A RLCR [Y+05] +RES 0,[X+05] DADC SP RRCR [Y+05] +RES 1,[X+05] LSPD 06A4 RALR [Y+05] +RES 2,[X+05] LDI RARR [Y+05] +RES 3,[X+05] CCI SLAR [Y+05] +RES 4,[X+05] INI SRAR [Y+05] +RES 5,[X+05] OTI SRLR [Y+05] +RES 6,[X+05] LDD BIT 0,[Y+05] +RES 7,[X+05] CCD BIT 1,[Y+05] +SET 0,[X+05] IND BIT 2,[Y+05] +SET 1,[X+05] OTD BIT 3,[Y+05] +SET 2,[X+05] LDIR BIT 4,[Y+05] +SET 3,[X+05] CCIR BIT 5,[Y+05] +SET 4,[X+05] INIR BIT 6,[Y+05] +SET 5,[X+05] OTIR BIT 7,[Y+05] +SET 6,[X+05] LDDR RES 0,[Y+05] +SET 7,[X+05] CCDR RES 1,[Y+05] +INP B INDR RES 2,[Y+05] +OUTP B OTDR RES 3,[Y+05] + + +RES 4,[Y+05] SET 0,[Y+05] SET 4,[Y+05] +RES 5,[Y+05] SET 1,[Y+05] SET 5,[Y+05] +RES 6,[Y+05] SET 2,[Y+05] SET 6,[Y+05] +RES 7,[Y+05] SET 3,[Y+05] SET 7,[Y+05] + +; These are the result of disassembling 64180OPS.TRY +; These opcodes are available ONLY on the 64180 CPU +; DDTZ will both assemble and disassemble these. +IN0 B,20 TST E MLT B +OUT0 20,B IN0 H,20 MLT D +TST B OUT0 20,H TSTI 20 +IN0 C,20 TST H MLT H +OUT0 20,C IN0 L,20 TSIO 20 +TST C OUT0 20,L SLP +IN0 D,20 TST L MLT SP +OUT0 20,D TST M OTIM +TST D IN0 A,20 OTDM +IN0 E,20 OUT0 20,A OIMR +OUT0 20,E TST A ODMR + +; The following are UNDOCUMENTED z80 opcodes from XTDOPS.TRY. +; DDTZ will disassemble these, but will not assemble them. +; They use xh/xl (or yh/yl) as separate byte registers. +; Use these at your own risk. +INRX H ACXR H MOVY H,B +DCRX H ACXR L MOVY H,C +MVIX H,20 SUXR H MOVY H,D +INRX L SUXR L MOVY H,E +DCRX L SBXR H MOVY H,A +MVIX L,20 SBXR L MOVY L,B +MOVX B,H NDXR H MOVY L,C +MOVX B,L NDXR L MOVY L,D +MOVX C,H XRXR H MOVY L,E +MOVX C,L XRXR L MOVY L,A +MOVX D,H ORXR H MOVY A,H +MOVX D,L ORXR L MOVY A,L +MOVX E,H CPXR H ADYR H +MOVX E,L CPXR L ADYR L +MOVX H,B INRY H ACYR H +MOVX H,C DCRY H ACYR L +MOVX H,D MVIY H,20 SUYR H +MOVX H,E INRY L SUYR L +MOVX H,A DCRY L SBYR H +MOVX L,B MVIY L,20 SBYR L +MOVX L,C MOVY B,H NDYR H +MOVX L,D MOVY B,L NDYR L +MOVX L,E MOVY C,H XRYR H +MOVX L,A MOVY C,L XRYR L +MOVX A,H MOVY D,H ORYR H +MOVX A,L MOVY D,L ORYR L +ADXR H MOVY E,H CPYR H +ADXR L MOVY E,L CPYR L + + +Command Summary: +=============== + +DDTZM command DDTZ command +============= ============ +@ (base) +A)ssemble first_address A +B)egin {i.e., initialize stack and return} B +C)ompare first_address,last_address,against_address C +D)ump first_address[,last_address[,base]] D +E)nter_in_memory first_address[,base] S)ubstitute +F)ill first_address,last_address,value F +G)o_to [address][,trap1[,trap2]] G +H)ex_arithmetic value1(,value2) H +L)oad_file (offset) R)ead +M)ove first_address,last_address,destination M +N)nput FCBs_command_line I)nput +Q)uit (not avail) +R)egister examine/change [register|flag] X)amine +S)earch first_address,last_address,word W)hereis +T)race_execution [count] T + Untrace_execution [count] (i.e. do count instr) U)ntrace +U)nassemble_code first_address[,last_address] L)ist code +W)rite [first_address,last_address] K)eep +X)amine {i.e. display memory parameters for application} Q)uery +Y)our_option BC:=parm1,DE:=parm2,call_address Y +Z)80_register_display Z + + +If you find this program useful, contributions will be gratefully +accepted and will encourage further development and release of +useful CPM programs. My practice is to include source. + +C.B. Falconer +680 Hartford Turnpike, +Hamden, Conn. 06517 (203) 281-1438 + +DDTZ and its associated documentation and other files are +copyright (c) 1980-1988 by C.B. Falconer. They may be freely +copied and used for non-commercial purposes ONLY. +τΩ \ No newline at end of file diff --git a/Source/HBIOS/vdu.asm b/Source/HBIOS/vdu.asm index 0d140608..9a65055b 100644 --- a/Source/HBIOS/vdu.asm +++ b/Source/HBIOS/vdu.asm @@ -74,7 +74,7 @@ VDU_INIT: LD A,VDU_RAMRD CALL PRTHEXBYTE - PRTS(" MODE= $") ; OUTPUT DISPLAY FORMAT + PRTS(" MODE=$") ; OUTPUT DISPLAY FORMAT LD A,DROWS CALL PRTDECB PRTS("X$") diff --git a/Source/Images/fd0/u0/DDT.COM b/Source/Images/fd0/u0/DDT.COM index 83f8603f..70e4ebfe 100644 Binary files a/Source/Images/fd0/u0/DDT.COM and b/Source/Images/fd0/u0/DDT.COM differ diff --git a/Source/Images/fd0/u0/DDTZ.COM b/Source/Images/fd0/u0/DDTZ.COM index e30a34c0..4f6eca6b 100644 Binary files a/Source/Images/fd0/u0/DDTZ.COM and b/Source/Images/fd0/u0/DDTZ.COM differ diff --git a/Source/Images/hd0/s0/u0/DDT.COM b/Source/Images/hd0/s0/u0/DDT.COM index 83f8603f..70e4ebfe 100644 Binary files a/Source/Images/hd0/s0/u0/DDT.COM and b/Source/Images/hd0/s0/u0/DDT.COM differ diff --git a/Source/Images/hd0/s0/u0/DDTZ.COM b/Source/Images/hd0/s0/u0/DDTZ.COM index e30a34c0..4f6eca6b 100644 Binary files a/Source/Images/hd0/s0/u0/DDTZ.COM and b/Source/Images/hd0/s0/u0/DDTZ.COM differ diff --git a/Source/Images/hd0/s1/u0/DDT.COM b/Source/Images/hd0/s1/u0/DDT.COM index 83f8603f..70e4ebfe 100644 Binary files a/Source/Images/hd0/s1/u0/DDT.COM and b/Source/Images/hd0/s1/u0/DDT.COM differ diff --git a/Source/Images/hd0/s1/u0/DDTZ.COM b/Source/Images/hd0/s1/u0/DDTZ.COM index e30a34c0..4f6eca6b 100644 Binary files a/Source/Images/hd0/s1/u0/DDTZ.COM and b/Source/Images/hd0/s1/u0/DDTZ.COM differ diff --git a/Source/RomDsk/ROM_1024KB/DDT.COM b/Source/RomDsk/ROM_1024KB/DDT.COM index 83f8603f..70e4ebfe 100644 Binary files a/Source/RomDsk/ROM_1024KB/DDT.COM and b/Source/RomDsk/ROM_1024KB/DDT.COM differ diff --git a/Source/RomDsk/ROM_1024KB/DDTZ.COM b/Source/RomDsk/ROM_1024KB/DDTZ.COM index e30a34c0..4f6eca6b 100644 Binary files a/Source/RomDsk/ROM_1024KB/DDTZ.COM and b/Source/RomDsk/ROM_1024KB/DDTZ.COM differ diff --git a/Source/RomDsk/ROM_512KB/DDT.COM b/Source/RomDsk/ROM_512KB/DDT.COM index 83f8603f..70e4ebfe 100644 Binary files a/Source/RomDsk/ROM_512KB/DDT.COM and b/Source/RomDsk/ROM_512KB/DDT.COM differ diff --git a/Source/RomDsk/ROM_512KB/DDTZ.COM b/Source/RomDsk/ROM_512KB/DDTZ.COM index e30a34c0..4f6eca6b 100644 Binary files a/Source/RomDsk/ROM_512KB/DDTZ.COM and b/Source/RomDsk/ROM_512KB/DDTZ.COM differ