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Documentation fixes

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romych committed 2026-10-16 12:02:04 +03:00
1 parent 363eee3c29
commit 4786ad87d6
3 files changed
+16 -6
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ioports.inc
+12 -3
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@@ -7,12 +7,21 @@
; System port mapped to RAM address.
; Matrix keyboard rows 0..7
PORT_F400_KBD EQU 0xf400
; System port mapped to RAM address.
; Matrix keyboard columns 0..7
PORT_F401_KBD EQU 0xf401
; System port mapped to RAM address.
; bit 0 - Tape Output
; bit 2 - Output "RUS/LAT" LED indicator
; bit 3 - Output "TapeIn" LED indicator
; bit 4 - Tape Input
; bit 5 - Input "Ctrl" keyboard key
; bit 6 - Input "Shift" keyboard key
; bit 7 - Input "RUS/LAT" keyboard key
PORT_F402_KBD EQU 0xf402
; System port mapped to RAM address.
@@ -26,12 +35,12 @@ PORT_F600_USR2 EQU 0xf600
PORT_F601_USR2 EQU 0xf601
; System port mapped to RAM address.
; LPT Control port:
; bit 3 - input BUSY sygnal
; bit 7 - output #STROBE sygnal
PORT_F602_USR2 EQU 0xf602
; System port mapped to RAM address.
; LPT Control port
; bit 7 - output /STROBE sygnal
; bit 3 - input BUSY sygnal
PORT_F603_USR2 EQU 0xf603
; System port mapped to RAM address.