mirror of
https://github.com/Tolik-Trek/ZX-SP-ROMs.git
synced 2026-06-15 09:21:45 +03:00
752 lines
11 KiB
Plaintext
752 lines
11 KiB
Plaintext
;
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; for INCLUDE
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; MS-DOS system
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;
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;********************************************
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; MS-DOS utilites
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;********************************************
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MSD_R_W_UT:
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PUSH AF
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CALL DISK_REDIR
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CP #40
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JR C,.NOT_HDD
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;************************************************
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;* <20>®¤¯à®£à ¬¬ ç⥨ï/§ ¯¨á¨ MS-DOS ¤¨áª®¢ *
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;* 1. €¤à¥á ¡ãä¥à - HL *
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;* 2. <20>®¬¥à ᥪâ®à - DE *
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;* 3. —¨á«® ᥪâ®à®¢ - B *
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;* 4. Š®¬ ¤ - C *
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;* 5. ‘âà ¨æ Ž‡“ - A *
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;************************************************
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.HDD: POP AF
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CALL HD_CMD
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RET NC
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JP HDD_ERROR
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;************************************************
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.NOT_HDD:
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POP AF
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EX AF,AF'
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LD A,C
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SUB 4
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JR Z,MSD_cmd4
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; JR Z,MSD_cmd4M
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DEC A
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JR Z,MSD_cmd5
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; JR Z,MSD_cmd5M
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DEC A
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JR Z,MSD_cmd6
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; JR Z,MSD_cmd6M
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EX AF,AF'
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RET
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;MSD_cmd4M:
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; LD DE,0
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; LD IX,0
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; LD B,1
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;MSD_cmd5M:
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; EX DE,HL
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; PUSH IX
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; EX (SP),HL
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; POP IX
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; LD C,12H
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; LD A,(OPER_DISK)
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; DI
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; PUSH IY
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; CALL HD_CMD
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; POP IY
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; EI
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; PUSH IX
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; EX (SP),HL
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; POP IX
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; EX DE,HL
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; JP C,ERROR_MSDOS
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; EX AF,AF'
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; AND A
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; RET
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;
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;MSD_cmd6M:
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; EX DE,HL
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; PUSH IX
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; EX (SP),HL
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; POP IX
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; LD C,13H
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; LD A,(OPER_DISK)
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; DI
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; PUSH IY
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; CALL HD_CMD
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; POP IY
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; EI
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; PUSH IX
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; EX (SP),HL
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; POP IX
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; EX DE,HL
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; JP C,ERROR_MSDOS
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; EX AF,AF'
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; AND A
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; RET
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;*************************************
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MSD_cmd4:
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PUSH HL
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PUSH AF
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CALL RESET_WG
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POP AF
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POP HL
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LD B,1
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LD DE,0
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MSD_cmd5:
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LD A,0
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LD (RD_WR_COM),A
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EX AF,AF'
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JR MSD_RWU1
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MSD_cmd6:
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LD A,255
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LD (RD_WR_COM),A
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EX AF,AF'
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JR MSD_RWU1
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PREPARE1:
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LD (MED_START),A
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LD (CONT_BUF_ADR),HL
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DI
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IN A,(PAGE2)
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LD C,A
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LD A,SYS_PAGE
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OUT (PAGE2),A
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LD A,(DS_1440-4000H)
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AND BIT_MASK_1440
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SET 0,A
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LD (DS_1440-4000H),A
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LD A,C
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OUT (PAGE2),A
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EI
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CALL Z,RES_1440
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CALL NZ,SET_1440
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CALL CALC_SECTOR
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LD (CONT_SEC),DE
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LD A,(RD_WR_COM)
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RET
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MSD_RWU1:
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PUSH BC
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PUSH HL
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CALL PREPARE1
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; JR MSD_R_W_LOOP
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MSD_R_W_LOOP:
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POP HL
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POP BC
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LD A,(MED_START)
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INC B
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DEC B
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LD DE,(CONT_SEC)
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RET Z
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DEC B
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PUSH BC
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PUSH HL
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LD (CONT_BUF_ADR),HL
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LD A,(CONT_SEC)
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LD (SEC_NUM),A
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LD A,(CONT_TRK)
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CALL Global_trk
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LD A,(RD_WR_COM)
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OR A
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PUSH AF
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CALL Z,MSD_3F0E
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POP AF
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CALL NZ,MSD_3F0A
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DI
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IN A,(PAGE2)
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LD C,A
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LD A,SYS_PAGE
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OUT (PAGE2),A
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LD DE,(MS_BPB+SEC_SIZE-4000h)
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LD A,C
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OUT (PAGE2),A
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EI
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POP HL
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ADD HL,DE
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LD A,H
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OR L
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JR NZ,MSD_NO_PAGE
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DI
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IN A,(PAGE2)
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LD C,A
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LD A,SYS_PAGE
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OUT (PAGE2),A
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LD A,(MED_START)
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LD HL,RAMD_FAT-4000H
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LD L,A
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LD L,(HL)
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LD A,C
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OUT (PAGE2),A
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EI
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LD A,L
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LD HL,0C000H
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LD (MED_START),A
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MSD_NO_PAGE:
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LD (CONT_BUF_ADR),HL
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PUSH HL
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DI
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IN A,(PAGE2)
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LD C,A
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LD A,SYS_PAGE
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OUT (PAGE2),A
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LD A,(DS_1440-4000H)
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RES 0,A
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LD (DS_1440-4000H),A
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LD A,(MSD_SECS-4000h)
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LD L,A
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LD A,C
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OUT (PAGE2),A
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EI
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LD A,L
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LD HL,CONT_SEC
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INC (HL)
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CP (HL)
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JP NZ,MSD_R_W_LOOP
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LD (HL),0
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LD HL,CONT_TRK
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INC (HL)
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JP MSD_R_W_LOOP
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;*****************************************
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;
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;*****************************************
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MSD_3F0A:
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LD A,160
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JR MSD_3F10
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MSD_3F0E:
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LD A,128
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MSD_3F10:
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LD (COMAND_WG),A
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MSD_3F13:
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LD D,5 ; —ˆ‘‹Ž <20>Ž‚’Ž<E28099>…<EFBFBD>ˆ‰
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MSD_3F15:
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PUSH DE
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PUSH IX
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DI
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IN A,(PAGE3)
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EX AF,AF'
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LD A,(MED_START)
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OUT (PAGE3),A
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AND A
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JR Z,NO_OFF_SCR
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LD A,0C0H
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OUT (RGADR),A
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NO_OFF_SCR:
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LD IX,MSD_RET_ADR
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LD A,(SEC_NUM)
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INC A
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OUT (WG_SEC),A
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LD HL,(CONT_BUF_ADR)
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LD C,127
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LD A,(COMAND_WG)
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OUT (WG_COM),A
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CP 160
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JP Z,MSD_3FBA ; ‡€<E280A1>ˆ‘œ ‘…Š’Ž<E28099>€
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JP MSD_3FD5 ; —’…<E28099>ˆ… ‘…Š’Ž<E28099>€
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MSD_RET_ADR:
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LD A,0
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OUT (RGADR),A
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EX AF,AF'
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OUT (PAGE3),A
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POP IX
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POP DE
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EI
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IN A,(WG_COM)
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LD B,A
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AND 127
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RET Z
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MSD_3F39:
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LD HL,READ_ONLY_MSG
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AND '@'
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JR NZ,MSD_3F4B
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LD A,B
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AND 4
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JR Z,MSD_3FA0 ; -> „<>“ƒ€Ÿ Ž˜ˆ<CB9C>Š€
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DEC D ; <20>Ž’…<E28099>Ÿ „€<E2809E><E282AC>›•
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JR Z,MSD_3F48 ; MSD_3F15
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CALL SWITCH_DT
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JR MSD_3F15
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MSD_3F48:
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LD HL,DISK_ERROR_MSG
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MSD_3F4B:
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LD A,208
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OUT (WG_COM),A
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LD A,B
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AND 1
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JP NZ,AUTO_3EE7
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PUSH HL
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CALL AUTO_1D97
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POP HL
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RST PRINT_LN
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LD HL,AUTO_2A13
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RST PRINT_LN
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IN A,(WG_TRK)
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CALL AUTO_1DA3
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LD HL,AUTO_2A18
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RST PRINT_LN
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IN A,(WG_SEC)
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CALL AUTO_1DA3
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LD HL,AUTO_29FE
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RST PRINT_LN
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MSD_3F7B:
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CALL AUTO_1052
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CP 'I'
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RET Z
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CP 'R'
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JR Z,MSD_3F94
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CP 'A'
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JR NZ,MSD_3F7B
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CALL exit_No_disk
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LD A,7
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LD (DOS_ERR_2),A
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JP AUTO_01D3
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MSD_3F94:
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LD A,(CONT_TRK)
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CALL Global_trk
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CALL pause_750ms
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JP MSD_3F13
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MSD_3FA0:
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DEC D
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JP Z,MSD_3F48
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CALL SWITCH_DT
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PUSH DE
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CALL AUTO_3D98 ; RESET_WG
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LD A,(CONT_TRK)
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CALL Global_trk ; <20>Ž‡ˆ–ˆŽ<CB86>ˆ<EFBFBD>Ž‚€<E2809A>ˆ…
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POP DE
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JP MSD_3F15
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SWITCH_DT:
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DI
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IN A,(PAGE2)
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LD C,A
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LD A,SYS_PAGE
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OUT (PAGE2),A
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LD A,(DS_1440-4000H)
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BIT 0,A
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JR Z,NO_SW_DT
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XOR BIT_MASK_1440
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LD (DS_1440-4000H),A
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AND BIT_MASK_1440
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LD A,C
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OUT (PAGE2),A
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EI
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CALL Z,RES_1440
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CALL NZ,SET_1440
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RET
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NO_SW_DT:
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LD A,C
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OUT (PAGE2),A
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EI
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RET
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;******************************************
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; Sector Write !!!
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;******************************************
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MSD_3FBA:
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LD B,4
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MSD_3FBC:
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IN A,(P_DOS_FF)
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AND 192
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JR NZ,MSD_3FD1
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INC DE
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LD A,E
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OR D
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JR NZ,MSD_3FBC
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DJNZ MSD_3FBC
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MSD_RET_IX:
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JP (IX)
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MSD_3FCA:
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IN A,(P_DOS_FF)
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AND 192
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JR Z,MSD_3FCA
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JP M,MSD_RET_IX
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MSD_3FD1:
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OUTI
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JR MSD_3FCA
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;******************************************
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; Sector Read !!!
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;******************************************
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MSD_3FD5:
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LD B,4
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MSD_3FD7:
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IN A,(P_DOS_FF)
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AND 192
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JR NZ,MSD_3FEC
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INC DE
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LD A,E
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OR D
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JR NZ,MSD_3FD7
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DJNZ MSD_3FD7
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MSD_RET_IX2:
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JP (IX)
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MSD_3FE5:
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IN A,(P_DOS_FF)
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AND 192
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JR Z,MSD_3FE5
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JP M,MSD_RET_IX2
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MSD_3FEC:
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INI
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JR MSD_3FE5
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;******************************************
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;****************************************
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RES_1440:
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LD A,01h
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OUT (0BDh),A
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RET
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SET_1440:
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LD A,21h
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OUT (0BDh),A
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RET
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READ_BPB:
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CALL DISK_REDIR
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CP #40
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JR NC,.HDD_REDIR2
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CP 4
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JP NC,.ERROR_MSDOS
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CALL SET_DISK
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CALL .MAIN
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RET NC
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JP .ERROR_MSDOS
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.HDD_REDIR2:
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CALL .MAIN
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RET NC
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.SPACIAL:
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LD IX,0
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LD DE,63 ;!HARDCODE
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LD A,SYS_PAGE
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LD HL,MS_BPB
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LD C,BIOS.HDD_READ and #BF
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LD B,1
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CALL MSD_R_W_UT
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CALL READ_BPB.PARAMS
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RET NC
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JP .ERROR_MSDOS
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.MAIN: LD A,SYS_PAGE
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LD HL,MS_BPB
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LD C,BIOS.HDD_READ_BPB and #BF
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CALL MSD_R_W_UT
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;CALL BPB_PARAMS
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;RET
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; LD C,18H
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; LD A,(OPER_DISK)
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; CALL HD_CMD
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; ;
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; DI
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; IN A,(PAGE3)
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; EX AF,AF'
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; LD A,SYS_PAGE
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; OUT (PAGE3),A
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; ;
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; LD A,(MS_BPB+S_P_T) ; Š®«¨ç¥á⢮ ᥪâ®à®¢ â४
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; LD L,A
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; ;
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; EX AF,AF'
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; OUT (PAGE3),A
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; EI
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; ;
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; LD A,(OPER_DISK)
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; LD C,19H
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; CALL HD_CMD
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.PARAMS:
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DI
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IN A,(PAGE3)
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EX AF,AF'
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LD A,SYS_PAGE
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OUT (PAGE3),A
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LD A,(MS_BPB+FORM_CODE)
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CP #F0
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JP C,.ERROR_BPB
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LD HL,MS_BPB+FAT_ID
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LD DE,.FAT1_MSG
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LD B,4
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.L1: LD A,(DE)
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CP ' '
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JR NZ,.L11
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INC DE
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JR .L1
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.L11: CP (HL)
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JR NZ,.PC_DOS
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INC HL
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INC DE
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DJNZ .L1
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LD A,(HL)
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CP '6'
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LD HL,#81FF ; FAT16 ä« £
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JR Z,.FAT
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CP '2'
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JP NZ,.ERROR_BPB
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.PC_DOS:
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LD HL,#01FF ; FAT12 ä« £
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.FAT: LD (FAT_FLAG),HL
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LD A,(MS_BPB+S_P_T) ; Š®«¨ç¥á⢮ ᥪâ®à®¢ â४
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LD (MSD_SECS),A
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BIT 7,H
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LD IX,0
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LD HL,0 ; ¢ëç¨á«¨âì ç «ìë© á¥ªâ®à FAT
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JR Z,.NO_LD_SPECIAL
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LD IX,(MS_BPB+SPECIAL_SECS)
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LD HL,(MS_BPB+SPECIAL_SECS+2)
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.NO_LD_SPECIAL:
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LD BC,0
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LD DE,(MS_BPB+RESERV_SECS)
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ADD IX,DE
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ADC HL,BC
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LD (MSD_FAT_SEC),IX ; ç «ìë© á¥ªâ®à FAT
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LD (MSD_FAT_SEC2),HL ; ç «ìë© á¥ªâ®à FAT
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LD DE,(MS_BPB+S_P_F) ; ç¨á«® ᥪâ®à®¢ ¢ FAT
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LD BC,0
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LD A,(MS_BPB+FATS_NUM) ; ª®«¨ç¥á⢮ FATs
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.NEXT_ADD:
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ADD IX,DE
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ADC HL,BC
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DEC A
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JR NZ,.NEXT_ADD
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LD (MSD_CAT_SEC),IX ; ç «ìë© á¥ªâ®à DIR
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LD (MSD_CAT_SEC2),HL ; ç «ìë© á¥ªâ®à DIR
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LD BC,(MS_BPB+SEC_SIZE) ; <20> §¬¥à ᥪâ®à
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RL C
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RL B
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RL C
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RL B
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RL C
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RL B
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LD C,B
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LD B,0 ; BC - ç¨á«® ä ©«®¢ëå § ¯¨á¥© ¢ ᥪâ®à¥
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LD A,C
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LD (F_P_S),A
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LD DE,(MS_BPB+FLS_NUM) ; —¨á«® ä ©«®¢ëå § ¯¨á¥©
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EX DE,HL
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DEC HL
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XOR A
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.NEXT_ADD2:
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INC A
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JR Z,.ERROR_BPB
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SBC HL,BC
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JR NC,.NEXT_ADD2
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EX DE,HL
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LD E,A ; A - ç¨á«® ᥪâ®à®¢ ¢ DIR
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LD D,0
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LD BC,0
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LD (S_P_C),A
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ADD IX,DE ; <20> ç «® DATA area
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ADC HL,BC
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LD (MSD_DAT_SEC),IX
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LD (MSD_DAT_SEC2),HL
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LD BC,(MS_BPB+SEC_SIZE) ; <20> §¬¥à ᥪâ®à
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LD HL,0
|
||
LD A,(MS_BPB+CLAST_SIZE)
|
||
LD D,A
|
||
LD A,0
|
||
.NEXT_ADD3:
|
||
ADD HL,BC ; ‚ëç¨á«¥¨¥ ¤«¨ë ª« áâ¥à
|
||
ADC A,0
|
||
DEC D
|
||
JR NZ,.NEXT_ADD3
|
||
|
||
LD (CLASTER_LEN),HL
|
||
LD B,0
|
||
LD C,A
|
||
LD (CLASTER_LEN2),BC
|
||
|
||
LD HL,0
|
||
LD BC,(MS_BPB+S_P_T)
|
||
LD A,(MS_BPB+H_P_S)
|
||
.BPB_L1:; ‚›—ˆ‘‹ˆ’œ ŠŽ‹ˆ—…‘’‚Ž ‘…Š’Ž<E28099>Ž‚ <20>€ –ˆ‹ˆ<E280B9>„<EFBFBD>
|
||
ADD HL,BC
|
||
DEC A
|
||
JR NZ,.BPB_L1
|
||
LD (S_X_H),HL
|
||
;
|
||
EX AF,AF'
|
||
OUT (PAGE3),A
|
||
EI
|
||
AND A
|
||
RET
|
||
.ERROR_BPB:
|
||
EX AF,AF'
|
||
OUT (PAGE3),A
|
||
SCF
|
||
EI
|
||
RET
|
||
.ERROR_MSDOS:
|
||
LD HL,MSG_3
|
||
JP AUTO_03E4
|
||
.FAT1_MSG:
|
||
DB 'FAT1'
|
||
;********************************************
|
||
READ_NEXT_DIR:
|
||
DI
|
||
IN A,(PAGE3)
|
||
EX AF,AF'
|
||
LD A,SYS_PAGE
|
||
OUT (PAGE3),A
|
||
LD DE,(MSD_CONT_SEC)
|
||
LD IX,(MSD_CONT_SEC2)
|
||
JR READ_NEXT2
|
||
;********************************************
|
||
READ_1ST_DIR:
|
||
DI
|
||
IN A,(PAGE3)
|
||
EX AF,AF'
|
||
LD A,SYS_PAGE
|
||
OUT (PAGE3),A
|
||
LD IX,(MSD_CAT_SEC2) ;
|
||
LD DE,(MSD_CAT_SEC) ; <20>€—€‹œ<E280B9>›‰ ‘…Š’Ž<E28099> Š€’€‹Žƒ€
|
||
LD (MSD_CONT_SEC),DE
|
||
LD (MSD_CONT_SEC2),IX
|
||
LD A,(S_P_C) ; ‘…Š’Ž<E28099>Ž‚ ‚ Š€’€‹Žƒ…
|
||
LD (COUNT_SEC),A
|
||
READ_NEXT2:
|
||
EX AF,AF'
|
||
OUT (PAGE3),A
|
||
; RET_PAGE3
|
||
EI
|
||
LD HL,MS_DIR
|
||
LD A,SYS_PAGE
|
||
LD B,1
|
||
LD C,5
|
||
CALL MSD_R_W_UT
|
||
DI
|
||
IN A,(PAGE3)
|
||
EX AF,AF'
|
||
LD A,SYS_PAGE
|
||
OUT (PAGE3),A
|
||
|
||
LD DE,(MSD_CONT_SEC)
|
||
INC DE
|
||
LD (MSD_CONT_SEC),DE
|
||
LD A,D
|
||
OR E
|
||
JR NZ,READ_NEXT3
|
||
LD IX,(MSD_CONT_SEC2)
|
||
INC IX
|
||
LD (MSD_CONT_SEC2),IX
|
||
READ_NEXT3:
|
||
LD A,(F_P_S) ; ”€‰‹Ž‚ ‚ ‘…Š’Ž<E28099>…
|
||
LD (COUNT_FL),A
|
||
|
||
EX AF,AF'
|
||
OUT (PAGE3),A
|
||
; RET_PAGE3
|
||
EI
|
||
LD HL,MS_DIR
|
||
AND A
|
||
RET
|
||
|
||
;******************************************
|
||
;********************************************
|
||
CALC_SECTOR: ; ‚›—ˆ‘‹ˆ’œ ’<>…Š/‘…Š’Ž<E28099> ¤«ï ¤¨áª¥â
|
||
LD A,D ; DE - ¡á. ®¬¥à ᥪâ®à
|
||
OR E
|
||
JR NZ,CALC_SECT_L1
|
||
LD HL,0
|
||
RET
|
||
|
||
CALC_SECT_L1:
|
||
PUSH BC
|
||
EX DE,HL
|
||
DI
|
||
IN A,(PAGE3)
|
||
EX AF,AF'
|
||
LD A,SYS_PAGE
|
||
OUT (PAGE3),A
|
||
LD BC,(MS_BPB+S_P_T)
|
||
XOR A
|
||
LOOP_TRK:
|
||
SBC HL,BC
|
||
JR C,SEC_ENDER
|
||
INC A
|
||
JR NZ,LOOP_TRK
|
||
POP BC
|
||
JP READ_BPB.ERROR_BPB
|
||
|
||
SEC_ENDER:
|
||
ADD HL,BC
|
||
LD H,A ; ’<>…Š
|
||
; LD L,L ; ‘…Š’Ž<E28099>
|
||
EX AF,AF'
|
||
OUT (PAGE3),A
|
||
EI
|
||
EX DE,HL
|
||
POP BC
|
||
RET
|
||
|
||
;************************************************
|
||
|
||
REDIR_LINE_CODING:
|
||
LD (MED_START),HL
|
||
LD HL,(DOS_CH_ADR)
|
||
LD A,(HL)
|
||
CP '/'
|
||
RET Z
|
||
JP AUTO_3057
|
||
|
||
PRINT_HEX_A:
|
||
PUSH AF
|
||
RRCA
|
||
RRCA
|
||
RRCA
|
||
RRCA
|
||
CALL PRINT_HEX_SYM
|
||
POP AF
|
||
PRINT_HEX_SYM:
|
||
PUSH HL
|
||
PUSH DE
|
||
PUSH BC
|
||
AND 0FH
|
||
ADD A,'0'
|
||
CP '9'+1
|
||
JR C,NO_ADD
|
||
ADD A,7
|
||
NO_ADD:
|
||
RST 10H
|
||
POP BC
|
||
POP DE
|
||
POP HL
|
||
RET
|
||
|
||
;*******************************************
|
||
|
||
|