b1ackmai1er
6 years ago
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1 changed files with
48 additions and
7 deletions
-
Source/CPM3/biosldr.z80
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@ -8,7 +8,8 @@ |
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extrn phex16, phex8 |
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extrn cin, cout |
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extrn crlf, crlf2 |
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debug equ false |
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; BIOS Jump vector. |
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@ -301,16 +302,44 @@ setsec: |
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ld (sect),bc |
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ret |
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setdma: |
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;push hl |
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;push bc |
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;pop hl |
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;call crlf |
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;call phex16 |
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;pop hl |
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if debug |
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push hl |
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push bc |
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pop hl |
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call crlf |
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call phex16 |
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pop hl |
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endif |
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ld (dma),bc |
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ret |
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read: |
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if debug |
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call crlf |
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ld a,(unit) |
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call phex8 |
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ld a,' ' |
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call cout |
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ld hl,(trk) |
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call phex16 |
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ld a,' ' |
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call cout |
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ld hl,(sect) |
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call phex16 |
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ld a,' ' |
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call cout |
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ld hl,(lba+2) |
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call phex16 |
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ld hl,(lba+0) |
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call phex16 |
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endif |
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; Check device type |
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ld a,(unit) ; get unit |
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ld c,a ; BIOS Disk Unit in C |
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@ -349,6 +378,18 @@ read2: |
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set 7,d ; set lba access bit |
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read3: |
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if debug |
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ld a,' ' |
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call cout |
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ex de,hl |
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call phex16 |
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ex de,hl |
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call phex16 |
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endif |
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; DE:HL has sector address to read (LBA or CHS) |
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ld a,(unit) ; get disk unit |
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ld c,a ; put in C |
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