patch for non-scorpions

ZXNet echo conference «code.zx»

From Kirill Frolov To All 1 April 2002

Press RESET immediately, All! === Cut === ; (L) Copyleft Kirill Frolov 03/31/2002 ; ; DETERMINING THE TYPE OF MACHINE IS AVAILABLE ; AT THE BOTTOM OF THE FILE FOR THERE IS A STORM ; SUX AND MAZDAI, BUT THERE IS ZASM ; RULEZ EUSUAL ; ; Patch for Basic-128. ; The patch is applied using STORM ; assembler The patch does the following ; changes in BASIC firmware: ; ; 1. Removed from the menu ; "Tape Loader" item. ; 2. The item "TR-Dos" is put first ; in the menu (instead of "Tape Loader"). ; 3. The last item "TR-DOS" has been replaced ; item "Reset" to perform ; cold reset programs. ; 4. If at the moment of reset the ; Caps Shift key then happens ; exit to the menu without performing ; "cold reset". ; 5. While holding down the Symbol Shift key ; Basic-128 starts ; (program in shadow bank ROM ; will not be launched). ; 6. If the above keys are not ; are held, then checked ; RAM contents by addresses ; #5c00..#5c0f. If audited ; cells are filled with one value ; what is supposed to have happened ; the computer turns on and happens ; execution of the cold program ; reset", otherwise exit ; on the menu. ; ; Notes: ; To call an image test from ; Basic-128 required when resetting ; hold down 3 keys at the same time: ; Caps Shift, Symbol Shift and Space ; (or Symbol Shift and Break).; While simultaneously holding ; Caps Shift and Symbol Shift ; (or one Ext Mode key) ; you will exit to the Basic-128 menu. ; By exiting to the menu we mean ; launching a program from a shadow bank ; ROM" on computers like Scorpion and ; Kay or exit to the Basic-128 menu ; on a Pentagon type computer (if ; If necessary, the program can be ; upgraded to run programs ; from an additional ROM bank to ; Pentagon computer). In additional ; the ROM bank can contain commanders ; (boot) TR-DOS (for example ; Quick Commander) or firmware type ; MadROM. ; Under "cold reset" ; implies the launch of the program ; from TR-DOS ROM bank to boot ; boot file (if necessary, it is possible ; modernization of the program for launch ; iS-DOS from hard drive). ; ; For the patch to work correctly ; you need to set the computer type ; to the end of the file: Pentagon or ; Scorpion/Kay. ; ; VIMAIE! The program is not intended ; to fix computer ROM ; Scorpion working with shadow ; monitor. Change ROM contents ; Basic-128 in the Scorpion computer ; DO NOT if you have a shadow monitor. ; If you want to use this ; the patch will have to be abandoned ; using shadow monitor and ; replace the contents of Basic-48, ; Basic-128 and TR-DOS standard ; firmware (for example from computers ; Pentagon or Kay). ; ; and different versions of the Kay computer; program has not been tested and ; may not work. ; LOAD EQ #8000 JMP128 EQ #0009 TEST128 EQ #00C7 R128FRE EQ #3C20 TEMPSTK EQ #5C08 TEMPPRG EQ #4000 PENT EQ TEST128 ORG 0,LOAD INCB "room128" ORG JMP128,LOAD+JMP128 JP TEST ORG #275E,LOAD+#275E DB "TR-Two " DW #2020,#A020 ORG #2784,LOAD+#2784 DB "Reset" DW #2020,#2020 DW #A020 ORG #2744+2,LOAD+#2744+2 DW #2816 ORG #2744+14,LOAD+#2744+14 DW PRESET ORG R128FRE,LOAD+R128FRE PRESET DI DI. XOR A JR INIT TEST LD A,1 HEAT LD SP,TEMPSTK LD HL,RAMPRG LD DE,TEMPPRG LD BC,R_END-R_ST LDIR OR A JR Z,POWERUP LD HL,#5C00 LD BC,#10 LD A,(HL) CPL1 CPI JR NZ,BREST JP PE,CPL1 LD A,#FE IN A,(#FE) RRA JR NC,BRESET POWERUP LD BC,#7FFD LD A,#10 JP R_PUP BRACE LD A,#7F IN A,(#FE) AND #02 JP Z,TEST128 JP MACHINE SCORP LD BC,#7FFD LD A,#1F LD HL,#0A10; KAY & SCORPION JP R_RES RAMPRG ORG TEMPPRG,LOAD+RAMPRG R_ST R_PUP LD HL,0 PUSH HL OUT (C),A JP #3D2F R_RES OUT (C),L LD B,A OUT (C),H RST #00 R_ENDMACHINE EQU SCORP; SCORPION & KAY ;MACHINE EQU PENT; PENTAGON === Cut ===