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BPBIOS system segment enhancements

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This commit is contained in:
Wayne Warthen
2020-02-14 17:22:56 -08:00
parent f6f995d407
commit 437a0d39b7
78 changed files with 12745 additions and 42 deletions
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47
Source/BPBIOS/dph.lib
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@@ -11,6 +11,11 @@
;:::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
CSEG
; Table has been reordered so that hard disk entries come before
; floppy entries. This means that "DRV_A" appears as I: and "DRV_E"
; appears as A:. The point is to allow booting from the first
; hard drive which pretty much needs to be A:
DPHTBL:
IF DRV_E AND HARDDSK
@@ -34,27 +39,6 @@ DPHTBL:
DEFW 00
ENDIF
IF DRV_A
DEFW DPH$00 ; Dph for drive A (Floppy)
ELSE
DEFW 00
ENDIF
IF DRV_B
DEFW DPH$01 ; Dph for drive B (Floppy)
ELSE
DEFW 00
ENDIF
IF DRV_C
DEFW DPH$02 ; Dph for drive C (Floppy)
ELSE
DEFW 00
ENDIF
IF DRV_D
DEFW DPH$03 ; Dph for drive D (Floppy)
ELSE
DEFW 0 ; Dph for drive D
ENDIF
IF DRV_I AND HARDDSK
DEFW DPH$54 ; Dph for Hard drive Partition I
ELSE
@@ -76,6 +60,27 @@ DPHTBL:
DEFW 00
ENDIF
IF DRV_A
DEFW DPH$00 ; Dph for drive A (Floppy)
ELSE
DEFW 00
ENDIF
IF DRV_B
DEFW DPH$01 ; Dph for drive B (Floppy)
ELSE
DEFW 00
ENDIF
IF DRV_C
DEFW DPH$02 ; Dph for drive C (Floppy)
ELSE
DEFW 00
ENDIF
IF DRV_D
DEFW DPH$03 ; Dph for drive D (Floppy)
ELSE
DEFW 0 ; Dph for drive D
ENDIF
IF DRV_M AND RAMDSK
DEFW DPH$90 ; Dph for RAM Drive M in DPHM-xx.Z80
ELSE