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@ -18,21 +18,26 @@ |
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; Processor: z80 |
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; Processor: z80 |
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; Target assembler: Table Driven Assembler (TASM) by Speech Technology Inc. |
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; Target assembler: Table Driven Assembler (TASM) by Speech Technology Inc. |
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cpm .equ 0000h |
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iobyte .equ 0004h |
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iobyte .equ 0004h |
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bdos .equ 0005h |
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bdos .equ 0005h |
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C_READ .equ 1 |
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A_READ .equ 3 |
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A_READ .equ 3 |
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A_WRITE .equ 4 |
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A_WRITE .equ 4 |
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A_STATIN .equ 7 |
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A_STATIN .equ 7 |
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A_STAT_OUT .equ 8 |
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A_STAT_OUT .equ 8 |
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C_WRITESTR .equ 9 |
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C_WRITESTR .equ 9 |
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C_STAT .equ 11 |
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S_BDOSVER .equ 12 |
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S_BDOSVER .equ 12 |
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DRV_SET .equ 14 |
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DRV_SET .equ 14 |
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F_OPEN .equ 15 |
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F_OPEN .equ 15 |
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F_CLOSE .equ 16 |
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F_CLOSE .equ 16 |
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F_SFIRST .equ 17 |
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F_DELETE .equ 19 |
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F_DELETE .equ 19 |
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F_WRITE .equ 21 |
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F_WRITE .equ 21 |
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F_MAKE .equ 22 |
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F_MAKE .equ 22 |
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DRV_GET .equ 25 |
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F_DMAOFF .equ 26 |
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F_DMAOFF .equ 26 |
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F_USERNUM .equ 32 |
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F_USERNUM .equ 32 |
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DRV_DPB .equ 33 |
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DRV_DPB .equ 33 |
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@ -59,7 +64,7 @@ start: ld sp, nstack ; Setup local stack |
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ld hl,(word_179E) ; zero first 20 |
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ld hl,(word_179E) ; zero first 20 |
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xor a ; bytes of |
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xor a ; bytes of |
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ld b,20 ; free memory |
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ld b,20 ; free memory |
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call sub_1786 |
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call fill_bhla |
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ld a,(buf_len) ; if there is nothing in |
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ld a,(buf_len) ; if there is nothing in |
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or a ; the command line buffer |
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or a ; the command line buffer |
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jr z,skip_cl ; go wait for transfer |
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jr z,skip_cl ; go wait for transfer |
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@ -90,10 +95,10 @@ start: ld sp, nstack ; Setup local stack |
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ld a,d |
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ld a,d |
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or e |
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or e |
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jr z,skip_cl |
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jr z,skip_cl |
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loc_152: ld hl,byte_17A3 |
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loc_152: ld hl,file_fcb |
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ex de,hl |
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ex de,hl |
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call sub_1492 |
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call sub_1492 |
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ld hl,byte_17A3 |
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ld hl,file_fcb |
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xor a |
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xor a |
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or (hl) |
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or (hl) |
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jr nz,loc_164 |
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jr nz,loc_164 |
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@ -103,7 +108,7 @@ loc_164: ld bc,0Dh |
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add hl,bc |
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add hl,bc |
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dec de |
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dec de |
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ldi |
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ldi |
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ld de,byte_17A3 |
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ld de,file_fcb |
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call sub_1B0 |
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call sub_1B0 |
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call clo_c |
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call clo_c |
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skip_cl: ld de,str_sxfr ; display start |
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skip_cl: ld de,str_sxfr ; display start |
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@ -115,9 +120,9 @@ skip_cl: ld de,str_sxfr ; display start |
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smod_b_186: .equ $+1 |
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smod_b_186: .equ $+1 |
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loc_185: ld bc,0 |
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loc_185: ld bc,0 |
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ld (word_17A2),bc |
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ld (word_17A2),bc |
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ld de,byte_17A3 |
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ld de,file_fcb |
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call sub_1B0 |
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call sub_1B0 |
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jp 0 |
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jp cpm |
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;---------------------------------------------------------------------------- |
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;---------------------------------------------------------------------------- |
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@ -153,7 +158,7 @@ sub_1B0: ld a,(de) |
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dec a |
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dec a |
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ld e, a |
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ld e, a |
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ld c,DRV_SET |
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ld c,DRV_SET |
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jp 5 ; Select disc |
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jp bdos ; Select disc |
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;---------------------------------------------------------------------------- |
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;---------------------------------------------------------------------------- |
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@ -164,7 +169,7 @@ err_vern: ld de,str_cpm3 ; Display version |
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err_exit: ld de,str_info ; Display usage |
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err_exit: ld de,str_info ; Display usage |
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ld c,C_WRITESTR ; and exit to |
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ld c,C_WRITESTR ; and exit to |
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call bdos ; CP/M |
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call bdos ; CP/M |
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jp 0 |
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jp cpm |
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;---------------------------------------------------------------------------- |
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;---------------------------------------------------------------------------- |
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@ -287,7 +292,7 @@ loc_437: ld a,0FEh |
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ld (byte_468),a |
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ld (byte_468),a |
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ld de,byte_467 |
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ld de,byte_467 |
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ld c,S_SYSVAR |
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ld c,S_SYSVAR |
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jp 5 ; Access the System Control Block |
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jp bdos ; Access the System Control Block |
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;---------------------------------------------------------------------------- |
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;---------------------------------------------------------------------------- |
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; S u b r o u t i n e |
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; S u b r o u t i n e |
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@ -343,7 +348,7 @@ sub_482: ld a,(byte_2D04) |
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call sub_16E7 |
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call sub_16E7 |
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ld de,text493h |
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ld de,text493h |
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ld c,C_WRITESTR |
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ld c,C_WRITESTR |
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jp 5 ; Output string |
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jp bdos ; Output string |
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;---------------------------------------------------------------------------- |
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;---------------------------------------------------------------------------- |
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@ -354,13 +359,13 @@ text495h: .db 0,0,0 |
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;---------------------------------------------------------------------------- |
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;---------------------------------------------------------------------------- |
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; S u b r o u t i n e |
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; S u b r o u t i n e |
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sub_4A4: ld de,byte_17A3 |
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sub_4A4: ld de,file_fcb |
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ld hl,byte_4F8 |
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ld hl,byte_4F8 |
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ld (hl),3Ah |
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ld (hl),3Ah |
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inc hl |
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inc hl |
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xor a |
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xor a |
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ld b,0Dh |
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ld b,0Dh |
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call sub_1786 |
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call fill_bhla |
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inc de |
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inc de |
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call sub_16C4 |
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call sub_16C4 |
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dec de |
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dec de |
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@ -389,7 +394,7 @@ sub_4A4: ld de,byte_17A3 |
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call bdos ; Output string |
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call bdos ; Output string |
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ld de,text508h |
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ld de,text508h |
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ld c,C_WRITESTR |
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ld c,C_WRITESTR |
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jp 5 ; Output string |
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jp bdos ; Output string |
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;---------------------------------------------------------------------------- |
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;---------------------------------------------------------------------------- |
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@ -425,7 +430,7 @@ sub_50B: ld hl,loc_2CAB |
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ld (hl),'$' |
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ld (hl),'$' |
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ld de,text51Eh |
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ld de,text51Eh |
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ld c,C_WRITESTR |
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ld c,C_WRITESTR |
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jp 5 ; Output string |
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jp bdos ; Output string |
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;---------------------------------------------------------------------------- |
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;---------------------------------------------------------------------------- |
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text51Eh: |
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text51Eh: |
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@ -674,7 +679,7 @@ sub_64A: ld b,3 |
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sub_64E: ld b,6 |
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sub_64E: ld b,6 |
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loc_650: xor a |
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loc_650: xor a |
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jp sub_1786 |
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jp fill_bhla |
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;---------------------------------------------------------------------------- |
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;---------------------------------------------------------------------------- |
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; S u b r o u t i n e |
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; S u b r o u t i n e |
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@ -1157,7 +1162,7 @@ loc_8C4: ld a,h |
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sub_8D1: xor a |
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sub_8D1: xor a |
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ld hl,byte_2C9D |
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ld hl,byte_2C9D |
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ld b,61h |
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ld b,61h |
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call sub_1786 |
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call fill_bhla |
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ld hl,rbuf_bfree |
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ld hl,rbuf_bfree |
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call sub_64E |
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call sub_64E |
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call sub_825 |
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call sub_825 |
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@ -1283,15 +1288,15 @@ loc_9AE: ld a,(byte_8AF) |
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ld a,0FFh |
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ld a,0FFh |
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call sub_172E |
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call sub_172E |
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ld hl,(word_2CD2) |
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ld hl,(word_2CD2) |
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ld de,byte_17A3 |
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ld de,file_fcb |
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call sub_1492 |
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call sub_1492 |
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ld hl,(byte_17A0) |
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ld hl,(byte_17A0) |
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ld (word_17A2),hl |
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ld (word_17A2),hl |
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loc_9E3: call sub_4A4 |
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loc_9E3: call sub_4A4 |
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ld de,byte_17A3 |
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ld de,file_fcb |
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call sub_169E |
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call sub_169E |
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jr nz,loc_A11 |
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jr nz,loc_A11 |
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ld de,byte_17A3 |
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ld de,file_fcb |
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ld c,F_MAKE |
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ld c,F_MAKE |
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call bdos_s |
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call bdos_s |
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ret c |
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ret c |
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@ -1320,7 +1325,7 @@ loc_A11: call sub_A09 |
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;---------------------------------------------------------------------------- |
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;---------------------------------------------------------------------------- |
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loc_A24: ld de,byte_17A3 |
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loc_A24: ld de,file_fcb |
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ld c,F_DELETE |
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ld c,F_DELETE |
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call bdos_s |
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call bdos_s |
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jr nc,loc_9E3 |
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jr nc,loc_9E3 |
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@ -1343,7 +1348,7 @@ loc_A43: ld de,loc_2811 |
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ld e, 1 |
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ld e, 1 |
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ld c,F_MULTISEC |
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ld c,F_MULTISEC |
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call bdos ; BDOS function 44 (F_MULTISEC) - Set number of records to read/write at once |
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call bdos ; BDOS function 44 (F_MULTISEC) - Set number of records to read/write at once |
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ld de,byte_17A3 |
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ld de,file_fcb |
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ld c,F_OPEN |
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ld c,F_OPEN |
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call bdos_s |
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call bdos_s |
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ret c |
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ret c |
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@ -1351,7 +1356,7 @@ loc_A43: ld de,loc_2811 |
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ld (byte_2CA5),a |
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ld (byte_2CA5),a |
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ld hl,byte_280E |
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ld hl,byte_280E |
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call sub_64A |
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call sub_64A |
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ld de,byte_17A3 |
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ld de,file_fcb |
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ld c,F_SIZE |
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ld c,F_SIZE |
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call bdos_s |
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call bdos_s |
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ret c |
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ret c |
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@ -1373,7 +1378,7 @@ loc_A83: push hl |
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rl (hl) |
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rl (hl) |
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pop hl |
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pop hl |
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djnz loc_A83 |
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djnz loc_A83 |
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ld de,byte_17A3 |
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ld de,file_fcb |
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ld c,DRV_DPB |
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ld c,DRV_DPB |
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call bdos_s |
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call bdos_s |
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ret c |
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ret c |
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@ -1421,7 +1426,7 @@ loc_ACF: xor a |
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ld hl,word_2CED |
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ld hl,word_2CED |
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ld b,11h |
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ld b,11h |
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xor a |
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xor a |
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call sub_1786 |
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call fill_bhla |
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call sub_FAA |
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call sub_FAA |
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ld a,(byte_2CA6) |
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ld a,(byte_2CA6) |
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cp 0FFh |
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cp 0FFh |
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@ -1732,7 +1737,7 @@ loc_D15: ld a,1Ah |
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ld a,0 |
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ld a,0 |
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ld (byte_2CA5),a |
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ld (byte_2CA5),a |
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ld c,F_CLOSE |
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ld c,F_CLOSE |
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ld de,byte_17A3 |
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ld de,file_fcb |
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jp bdos_s |
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jp bdos_s |
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;---------------------------------------------------------------------------- |
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;---------------------------------------------------------------------------- |
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@ -1790,7 +1795,7 @@ loc_D6E: LD C,0 |
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LD E,1 |
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LD E,1 |
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CALL bdos |
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CALL bdos |
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LD C,F_WRITE ; wr. seq. |
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LD C,F_WRITE ; wr. seq. |
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LD DE,byte_17A3 |
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LD DE,file_fcb |
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CALL bdos_s |
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CALL bdos_s |
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JR NC,loc_D6E |
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JR NC,loc_D6E |
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loc_0D97: POP HL |
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loc_0D97: POP HL |
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@ -2915,7 +2920,7 @@ loc_151D: ld a,(byte_2D0C) |
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;---------------------------------------------------------------------------- |
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;---------------------------------------------------------------------------- |
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; S u b r o u t i n e |
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; S u b r o u t i n e |
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sub_1522: call sub_15D9 |
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sub_1522: call valid_fnc |
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ret z |
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ret z |
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inc de |
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inc de |
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cp 2Ah |
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cp 2Ah |
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@ -2929,7 +2934,7 @@ loc_1533: ld (de),a |
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cp 3Fh |
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cp 3Fh |
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call z,sub_1543 |
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call z,sub_1543 |
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loc_153A: djnz sub_1522 |
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loc_153A: djnz sub_1522 |
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loc_153C: call sub_15D9 |
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loc_153C: call valid_fnc |
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ret z |
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ret z |
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inc hl |
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inc hl |
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jr loc_153C |
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jr loc_153C |
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@ -3055,28 +3060,28 @@ loc_15CD: dec de |
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ret |
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ret |
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;---------------------------------------------------------------------------- |
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;---------------------------------------------------------------------------- |
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; S u b r o u t i n e |
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; Validate character at hl is a valid filename character |
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sub_15D9: ld a,(hl) |
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cp 21h |
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valid_fnc: ld a,(hl) |
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cp '!' ; below ! |
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jr c,loc_15F8 |
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jr c,loc_15F8 |
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cp 3Dh |
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cp '=' |
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ret z |
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ret z |
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cp 5Fh |
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cp '_' |
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ret z |
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ret z |
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cp 2Eh |
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cp '.' |
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ret z |
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ret z |
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cp 3Ah |
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cp ':' |
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ret z |
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ret z |
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cp 2Ch |
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cp ',' |
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ret z |
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ret z |
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cp 3Ch |
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cp '<' |
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ret z |
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ret z |
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cp 3Eh |
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cp '>' |
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ret z |
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ret z |
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or a |
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or a ; null |
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ret z |
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ret z |
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cp 3Bh |
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cp 3bh ; ';' |
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ret |
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ret |
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loc_15F8: xor a |
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loc_15F8: xor a |
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@ -3087,8 +3092,8 @@ loc_15F8: xor a |
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sub_15FA: push bc |
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sub_15FA: push bc |
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ld bc,1100h ; ? |
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ld bc,1100h ; ? |
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loc_15FE: ld a,(hl) |
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call sub_15D9 |
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loc_15FE: ld a,(hl) ; duplicious ? |
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call valid_fnc |
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jr z,loc_161E |
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jr z,loc_161E |
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inc hl |
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inc hl |
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call sub_1625 |
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call sub_1625 |
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@ -3218,12 +3223,12 @@ loc_1683: ld (word_2D0F),hl |
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sub_1687: push af |
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sub_1687: push af |
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push de |
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push de |
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push hl |
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push hl |
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ld c,19h |
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call sub_16AF |
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ld c,DRV_GET |
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call bdos_s2 |
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push af |
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push af |
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ld e, 0FFh |
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ld e, 0FFh |
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ld c,F_USERNUM |
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ld c,F_USERNUM |
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call sub_16AF |
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call bdos_s2 |
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ld c,a |
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ld c,a |
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pop af |
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pop af |
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ld b,a |
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ld b,a |
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@ -3235,27 +3240,27 @@ sub_1687: push af |
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;---------------------------------------------------------------------------- |
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;---------------------------------------------------------------------------- |
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; S u b r o u t i n e |
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; S u b r o u t i n e |
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sub_169E: ld a,11h |
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call sub_16B8 |
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sub_169E: ld a,F_SFIRST |
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call bdos_cs3 |
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inc a |
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inc a |
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ret |
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ret |
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;---------------------------------------------------------------------------- |
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;---------------------------------------------------------------------------- |
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; S u b r o u t i n e |
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; S u b r o u t i n e |
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sub_16A5: ld a,1 |
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jp sub_16B8 |
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sub_16A5: ld a,C_READ |
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jp bdos_cs3 |
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;---------------------------------------------------------------------------- |
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;---------------------------------------------------------------------------- |
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; S u b r o u t i n e |
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; S u b r o u t i n e |
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sub_16AA: ld a,0Bh |
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jp sub_16B8 |
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sub_16AA: ld a,C_STAT |
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jp bdos_cs3 |
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;---------------------------------------------------------------------------- |
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;---------------------------------------------------------------------------- |
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; S u b r o u t i n e |
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; S u b r o u t i n e |
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sub_16AF: push de |
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bdos_s2: push de |
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push bc |
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push bc |
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call bdos |
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call bdos |
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pop bc |
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pop bc |
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@ -3266,7 +3271,7 @@ sub_16AF: push de |
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;---------------------------------------------------------------------------- |
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;---------------------------------------------------------------------------- |
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; S u b r o u t i n e |
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; S u b r o u t i n e |
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sub_16B8: push hl |
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bdos_cs3: push hl |
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push de |
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push de |
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push bc |
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push bc |
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ld c,a |
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ld c,a |
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@ -3447,17 +3452,17 @@ sub_1779: ld a,(de) |
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jr sub_1779 |
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jr sub_1779 |
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;---------------------------------------------------------------------------- |
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;---------------------------------------------------------------------------- |
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; S u b r o u t i n e |
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; Fill b locations starting at hl with value a |
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sub_1786: push hl |
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call sub_178C |
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fill_bhla: push hl |
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call fill_1 |
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pop hl |
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pop hl |
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ret |
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ret |
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;---------------------------------------------------------------------------- |
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;---------------------------------------------------------------------------- |
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; S u b r o u t i n e |
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; Fill b locations starting at hl with value a |
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sub_178C: push bc |
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fill_1: push bc |
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loc_178D: ld (hl),a |
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loc_178D: ld (hl),a |
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inc hl |
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inc hl |
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djnz loc_178D |
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djnz loc_178D |
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@ -3480,7 +3485,7 @@ word_179E: .dw loc_end |
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byte_17A0: .db 0 |
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byte_17A0: .db 0 |
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byte_17A1: .db 0 |
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byte_17A1: .db 0 |
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word_17A2: .db 0 |
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word_17A2: .db 0 |
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byte_17A3: .db 0 |
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file_fcb: .db 0 |
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.fill $20,0 |
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.fill $20,0 |
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loc_17C4: .db 0 |
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loc_17C4: .db 0 |
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.db 0 |
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.db 0 |
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Wayne Warthen
4 years ago