source: buchla-68k/orig/lib/INCLUDE/IOREC.H@ 6888aa2

Last change on this file since 6888aa2 was 3ae31e9, checked in by Thomas Lopatic <thomas@…>, 7 years ago

Imported original source code.
  • Property mode set to 100755
File size: 1.6 KB
RevLine 
[3ae31e9]1/*
2 =============================================================================
3 iorec.h -- structure defintion for Multi-Tasking BIOS io control record
4 Version 1 -- 1988-04-02 -- D.N. Lynx Crowe
5 (c) Copyright 1988 -- D.N. Lynx Crowe
6
7 Requires mtdefs.h for the SEM definition.
8 =============================================================================
9*/
10
11struct iorec {
12
13 char *ibuf; /* input buffer base address */
14 short ibsize; /* input buffer size - bytes */
15 short ibufhd; /* input buffer head index */
16 short ibuftl; /* input buffer tail index */
17 short ibuflow; /* input buffer low water mark */
18 short ibufhi; /* input bufrer high water mark */
19 char *obuf; /* output buffer base address */
20 short obsize; /* output buffer size - bytes */
21 short obufhd; /* output buffer head index */
22 short obuftl; /* output buffer tail index */
23 short obuflow; /* output buffer low water mark */
24 short obufhi; /* output buffer high water mark */
25 char cfr0; /* ACIA CFR, MS bit EQ 0 */
26 char cfr1; /* ACIA CFR, MS bit EQ 1 */
27 char flagxon; /* XON flag (non-zero EQ XOFF sent) */
28 char flagxof; /* XOFF flag (non-zero EQ active) */
29 char linedis; /* line discipline */
30 char erbyte; /* last error byte */
31 char isr; /* ACIA ISR on interrupt */
32 char csr; /* ACIA CSR on interrupt */
33 short errct; /* error count (FRM/OVR/BRK) */
34 short ibfct; /* input buffer overflow error count */
35 SEM inp_nf; /* input buffer not-full semaphore */
36 SEM inp_ne; /* input buffer not-empty semaphore */
37 SEM out_nf; /* output buffer not-full semaphore */
38 SEM out_ne; /* output buffer not-empty semaphore */
39};
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