FreeCalypso > hg > fc-tourmaline
view src/nucleus/lic.c @ 268:f2e52cab0a73
abb_inth.c: check all interrupt causes, not just one
The original code used if - else if - else if etc constructs, thus
the first detected interrupt was the only one handled. However,
Iota ITSTATREG is a clear-on-read register, thus if we only handle
the first detected interrupt and skip checking the others, then the
other interrupts will be lost, if more than one interrupt happened
to occur in one ABB interrupt handling cycle - a form of rare race
condition. Change the code to check all interrupts that were read
in this cycle.
| author | Mychaela Falconia <falcon@freecalypso.org> |
|---|---|
| date | Sun, 13 Jun 2021 18:17:53 +0000 |
| parents | 4e78acac3d88 |
| children |
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/*************************************************************************/ /* */ /* Copyright Mentor Graphics Corporation 2002 */ /* All Rights Reserved. */ /* */ /* THIS WORK CONTAINS TRADE SECRET AND PROPRIETARY INFORMATION WHICH IS */ /* THE PROPERTY OF MENTOR GRAPHICS CORPORATION OR ITS LICENSORS AND IS */ /* SUBJECT TO LICENSE TERMS. */ /* */ /*************************************************************************/ /*************************************************************************/ /* */ /* FILE NAME VERSION */ /* */ /* lic.c Nucleus PLUS 1.14 */ /* */ /* COMPONENT */ /* */ /* LI - License Information */ /* */ /* DESCRIPTION */ /* */ /* This file contains the core routines for the License Information */ /* component. */ /* */ /* DATA STRUCTURES */ /* */ /* None */ /* */ /* FUNCTIONS */ /* */ /* LIC_License_Information Return pointer to license */ /* information string */ /* */ /* DEPENDENCIES */ /* */ /* nucleus.h System definitions */ /* */ /* HISTORY */ /* */ /* DATE REMARKS */ /* */ /* 03-01-1993 Created initial version 1.0 */ /* 04-19-1993 Verified version 1.0 */ /* 03-01-1994 Replaced void with VOID, */ /* added pointer for return value, */ /* resulting in version 1.1 */ /* */ /* 03-18-1994 Verified version 1.1 */ /* 04-17-1996 updated to version 1.2 */ /* 03-24-1998 Released version 1.3. */ /* 03-26-1999 Released 1.11m (new release */ /* numbering scheme) */ /* 04-17-2002 Released version 1.13m */ /* 11-07-2002 Released version 1.14 */ /*************************************************************************/ #define NU_SOURCE_FILE #include "nucleus.h" /* System definitions */ /* Define external inner-component global data references. */ extern const CHAR LID_License_String[]; /*************************************************************************/ /* */ /* FUNCTION */ /* */ /* LIC_Release_Information */ /* */ /* DESCRIPTION */ /* */ /* This function returns a pointer to the license information */ /* string. The information string identifies the customer and */ /* product line Nucleus PLUS is licensed for. */ /* */ /* CALLED BY */ /* */ /* Application */ /* */ /* CALLS */ /* */ /* None */ /* */ /* INPUTS */ /* */ /* None */ /* */ /* OUTPUTS */ /* */ /* ptr Pointer to information string */ /* */ /* HISTORY */ /* */ /* DATE REMARKS */ /* */ /* 03-01-1993 Created initial version 1.0 */ /* 04-19-1993 Verified version 1.0 */ /* 03-01-1994 Replaced void with VOID, */ /* added pointer for return value, */ /* resulting in version 1.1 */ /* */ /* 03-18-1994 Verified version 1.1 */ /* */ /*************************************************************************/ CHAR *LIC_License_Information(VOID) { CHAR *ptr; /* Setup pointer to license string. */ ptr = (CHAR *) &LID_License_String[0]; /* Return a pointer to the license information string. */ return(ptr); }
