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Diffstat (limited to 'qt/md/i386.h')
-rw-r--r-- | qt/md/i386.h | 120 |
1 files changed, 0 insertions, 120 deletions
diff --git a/qt/md/i386.h b/qt/md/i386.h deleted file mode 100644 index 158fe2703..000000000 --- a/qt/md/i386.h +++ /dev/null @@ -1,120 +0,0 @@ -/* - * QuickThreads -- Threads-building toolkit. - * Copyright (c) 1993 by David Keppel - * - * Permission to use, copy, modify and distribute this software and - * its documentation for any purpose and without fee is hereby - * granted, provided that the above copyright notice and this notice - * appear in all copies. This software is provided as a - * proof-of-concept and for demonstration purposes; there is no - * representation about the suitability of this software for any - * purpose. - */ - -#ifndef QT_386_H -#define QT_386_H - -typedef unsigned long qt_word_t; - -/* Thread's initial stack layout on the i386: - - non-varargs: - - +--- - | arg[2] === `userf' on startup - | arg[1] === `pt' on startup - | arg[0] === `pu' on startup - +--- - | ret pc === qt_error - +--- - | ret pc === `only' on startup - +--- - | %ebp - | %esi - | %edi - | %ebx <--- qt_t.sp - +--- - - When a non-varargs thread is started, it ``returns'' directly to - the client's `only' function. - - varargs: - - +--- - | arg[n-1] - | .. - | arg[0] - +--- - | ret pc === `qt_vstart' - +--- - | %ebp === `startup' - | %esi === `cleanup' - | %edi === `pt' - | %ebx === `vuserf' <--- qt_t.sp - +--- - - When a varargs thread is started, it ``returns'' to the `qt_vstart' - startup code. The startup code calls the appropriate functions. */ - - -/* What to do to start a varargs thread running. */ -extern void qt_vstart (void); - - -/* Hold 4 saved regs plus two return pcs (qt_error, qt_start) plus - three args. */ -#define QT_STKBASE (9 * 4) - -/* Hold 4 saved regs plus one return pc (qt_vstart). */ -#define QT_VSTKBASE (5 * 4) - - -/* Stack must be 4-byte aligned. */ -#define QT_STKALIGN (4) - - -/* Where to place various arguments. */ -#define QT_ONLY_INDEX (QT_PC) -#define QT_USER_INDEX (QT_ARG2) -#define QT_ARGT_INDEX (QT_ARG1) -#define QT_ARGU_INDEX (QT_ARG0) - -#define QT_VSTARTUP_INDEX (QT_EBP) -#define QT_VUSERF_INDEX (QT_EBX) -#define QT_VCLEANUP_INDEX (QT_ESI) -#define QT_VARGT_INDEX (QT_EDI) - - -#define QT_EBX 0 -#define QT_EDI 1 -#define QT_ESI 2 -#define QT_EBP 3 -#define QT_PC 4 -/* The following are defined only for non-varargs. */ -#define QT_RPC 5 -#define QT_ARG0 6 -#define QT_ARG1 7 -#define QT_ARG2 8 - - -/* Stack grows down. The top of the stack is the first thing to - pop off (preincrement, postdecrement). */ -#define QT_GROW_DOWN - -extern void qt_error (void); - -/* Push on the error return address. */ -#define QT_ARGS_MD(sto) \ - (QT_SPUT (sto, QT_RPC, qt_error)) - - -/* When varargs are pushed, allocate space for all the args. */ -#define QT_VARGS_MD0(sto, nbytes) \ - ((qt_t *)(((char *)(sto)) - QT_STKROUNDUP(nbytes))) - -#define QT_VARGS_MD1(sto) \ - (QT_SPUT (sto, QT_PC, qt_vstart)) - -#define QT_VARGS_DEFAULT - -#endif /* QT_386_H */ |