1117 lines
27 KiB
C
1117 lines
27 KiB
C
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/*++
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Copyright (c) 1992 Microsoft Corporation
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Module Name:
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disasm.c
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Abstract:
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This file contains the code which controls the disassembly window.
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It is a normal MDI window. The creation of each line of disassembly
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is done by OSDEBUG.
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Author:
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Jim Schaad (jimsch)
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Environment:
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Win32 - User
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--*/
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/************************** INCLUDE FILES *******************************/
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#include "precomp.h"
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#pragma hdrstop
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#include <ime.h>
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/************************** Structs and Defines *************************/
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/************************** Internal Prototypes *************************/
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int DsmGetBackAddress(void);
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void DisasmAlignInstr(ADDR *);
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/************************** Data declaration *************************/
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ADDR AddrDisasm;
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UINT CbDisasm;
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int StDisasm = DISASM_NONE;
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int CLinesDisasm = 0;
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LONGLONG UlBaseOff;
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extern CXF CxfIp;
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extern LPSHF Lpshf;
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void DisasmSetVScroll(VOID);
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void DoVertScroll(HWND, UINT, WPARAM, LPARAM);
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/************************** Code *************************/
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void
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PASCAL
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ViewDisasm(
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LPADDR lpaddr,
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int cmd
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)
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/*++
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Routine Description:
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This function will cause the disassembly window to be voided and
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refreshed in the edit manager. It reconstucts or adds to the existing
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buffer.
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Arguments:
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lpaddr - Supplies an address which is used in the disassembly
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cmd - Supplies the operation to be preformed on the data
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Return Value:
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None.
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--*/
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{
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int doc = Views[disasmView].Doc;
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RECT rc;
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int cLine;
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SDI sds;
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int x;
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int y;
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int i;
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int cb;
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LPVIEWREC v = &Views[disasmView];
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BOOL fDisplay = FALSE;
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BOOL fHighlight = FALSE;
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BOOL fBreakpt = FALSE;
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HBPT hbpt;
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BPSTATUS bpstatus;
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ADDR addrT;
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ADDR addrPC;
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ADDR addrT2;
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int iLineFirst = v->iYTop;
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int iPC = -1;
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int iForce = -1;
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int iLineCur = v->Y;
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OFFSET offStart;
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static BOOL fRecurse = FALSE;
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/*
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* Prevent recursive calls to this routine
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*/
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if (fRecurse) {
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return;
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}
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fRecurse = TRUE;
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/*
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* Assert that we really have a window to play with
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*/
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Assert(disasmView != -1);
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/*
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* Don't bother if the window is currently iconized
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*/
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if (IsIconic(GetParent(Views[disasmView].hwndClient))) {
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fRecurse = FALSE;
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return;
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}
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/*
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* If no child active then clean out the existing listing and
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* return with out any thing else happening
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*/
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if (!DebuggeeActive() || LptdCur == NULL) {
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v->Y = v->iYTop = 0;
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DeleteAll(doc);
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if (UlBaseOff != 0) {
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SetScrollRange(Views[disasmView].hwndClient, SB_VERT, 0, 0, FALSE);
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UlBaseOff = 0;
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}
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fRecurse = FALSE;
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return;
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}
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if (UlBaseOff == 0) {
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SetScrollRange(Views[disasmView].hwndClient, SB_VERT,
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0, 8*1024, FALSE);
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SetScrollPos(Views[disasmView].hwndClient, SB_VERT, 0, TRUE);
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}
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/*
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* Compute the number of lines for display in the window
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*/
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GetClientRect(Views[disasmView].hwndClient, &rc);
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cLine = rc.bottom / v->charHeight;
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/*
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* Use some minimum size to keep small windows from going crazy
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*/
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if (cLine == 0) {
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cLine = 1;
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}
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/*
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* If the screen size if larger than the number of lines cached
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* then force redisplay
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*/
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if (cLine > CLinesDisasm) {
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fDisplay = TRUE;
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}
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/*
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* Look at all of the paging commands to see if we have a suffiecnt
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* amount of data cached in the edit buffers.
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*/
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if ((cmd & disasmDownPage) == disasmDownPage) {
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if (iLineFirst + 2*cLine + 2 > CLinesDisasm) {
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fDisplay = TRUE;
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cLine = CLinesDisasm + cLine + 2;
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} else {
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fRecurse = FALSE;
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return;
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}
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} else if ((cmd & disasmDownLine) == disasmDownLine) {
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if (iLineFirst + cLine + 1 > CLinesDisasm) {
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fDisplay = TRUE;
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cLine = CLinesDisasm + cLine + 2;
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} else {
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fRecurse = FALSE;
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return;
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}
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} else if ((cmd & disasmUpPage) == disasmUpPage) {
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if (iLineFirst >= cLine) {
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fRecurse = FALSE;
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return;
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} else {
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i = DsmGetBackAddress();
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iLineFirst += i;
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iLineCur += i;
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cLine = CLinesDisasm + i;
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fDisplay = TRUE;
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}
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} else if ((cmd & disasmUpLine) == disasmUpLine) {
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if (iLineFirst > 0) {
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fRecurse = FALSE;
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return;
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} else {
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i = DsmGetBackAddress();
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iLineFirst += i;
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iLineCur += i;
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cLine = CLinesDisasm + i;
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fDisplay = TRUE;
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}
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} else if ((cmd & disasmHighlight) == disasmHighlight ) {
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cLine = __max(cLine,CLinesDisasm);
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fDisplay = TRUE;
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}
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/*
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* If we are suppose to have the PC in the current window then it
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* was passed in as our parmeter. Check to see if PC is
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* in the current range if display
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*/
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if (lpaddr != NULL) {
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SYFixupAddr(lpaddr);
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}
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if (cmd & disasmRefresh) {
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fDisplay = TRUE;
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for (i=iLineFirst; i< Docs[doc].NbLines ; i++) {
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if (DisasmGetAddrFromLine(&addrT2, i)) {
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StDisasm = -1;
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AddrDisasm = addrT2;
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break;
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}
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}
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iLineCur = iLineCur - iLineFirst;
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iLineFirst = 0;
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}
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{
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BOOL bSegAlwaysZero = FALSE;
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if ((StDisasm == DISASM_NONE) ||
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(cmd & disasmForce)) {
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fDisplay = TRUE;
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DisasmGetAddrFromLine(&AddrDisasm, iLineFirst, &bSegAlwaysZero);
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iLineFirst = iLineCur = 0;
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}
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if ((cmd & disasmForce) &&
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((lpaddr->emi != AddrDisasm.emi) ||
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(!bSegAlwaysZero && AddrDisasm.addr.seg != lpaddr->addr.seg) ||
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(AddrDisasm.addr.off > lpaddr->addr.off) ||
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(AddrDisasm.addr.off + CbDisasm <= lpaddr->addr.off))) {
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AddrDisasm = *lpaddr;
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StDisasm = -1;
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UlBaseOff = ((AddrDisasm.addr.off + 2*1024 - 1) & ~(4*1024-1)) - 4*1024;
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iLineFirst = iLineCur = 0;
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// The entire contents of the disasm window have been blown
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// away, and the highlight is about to be placed at the top of
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// the window, but we want it to be more like the source
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// window, so the highlight will be placed 2 lines from the
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// top if the window is large enough.
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if (cLine > 5) {
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for (int i=0; i<2; i++) {
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PostMessage(Views[disasmView].hwndClient, WM_VSCROLL,
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MAKEWPARAM(SB_LINEUP, 0), (LPARAM) Views[disasmView].hwndClient);
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}
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}
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}
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}
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/*
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* Get the set of parameters which control the display of the
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* disassembly window
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*/
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if (fDisplay) {
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v->Y = v->iYTop = 0;
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DeleteAll(doc);
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sds.dop = (g_contWorkspace_WkSp.m_dopDisAsmOpts & ~(0x800)) | dopAddr |
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dopOpcode | dopOperands;
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} else {
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sds.dop = 0;
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}
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if ((StDisasm == DISASM_NONE) &&
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!((cmd & disasmPC) || (cmd & disasmForce))) {
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fRecurse = FALSE;
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return;
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}
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/*
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* Initialize the address and disassembler query structures
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*/
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sds.addr = AddrDisasm;
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/*
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* Grab a copy of the PC address so that we can check for a
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* current PC highlight.
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*/
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addrT2 = addrPC = *SHpADDRFrompCXT(&CxfIp.cxt);
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SYFixupAddr(&addrPC);
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/*
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* Now start doing the dump into the edit window. Put a label
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* here in case when we finish doing the dump we have not managed
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* to get a desired address in the window.
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*/
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again:
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offStart = sds.addr.addr.off;
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/*
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* Dump the info into the buffer
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*/
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for (i=0, y=0; i<cLine; i++, y++) {
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/*
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* Check to see if the current display offset is the
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* same as that of the program counter.
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*/
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if (addrPC.addr.off == sds.addr.addr.off) {
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fHighlight = TRUE;
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}
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/*
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* Check to see if the current display offset has a
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* breakpoint set.
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*/
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memcpy(&addrT, &sds.addr, sizeof(ADDR));
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bpstatus = BPHbptFromAddr(&addrT, &hbpt);
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fBreakpt = (bpstatus == BPNOERROR) || (bpstatus == BPAmbigous);
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/*
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* Now check to see if we have a label on the current line.
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*/
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if (fDisplay) {
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char rgchSymbol[512];
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ADDR addrT = sds.addr;
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LPCH lpchSymbol;
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ODR odr;
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addrT.emi = 0;
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ADDR_IS_LI(addrT) = FALSE;
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SYUnFixupAddr(&addrT);
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odr.lszName = rgchSymbol;
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lpchSymbol = SHGetSymbol(&addrT, &addrT2, sopNone, &odr);
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// Check to see if SHGetSymbol screwed us over
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Assert(strlen(rgchSymbol) < sizeof(rgchSymbol));
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if ((lpchSymbol != NULL) && (odr.dwDeltaOff == 0)) {
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x = strlen(rgchSymbol);
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InsertBlock(doc, 0, y, x, rgchSymbol);
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InsertBlock(doc, x, y, 3, ":\r\n");
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y += 1;
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LineStatus(doc, y, DASM_LABEL_LINE, LINESTATUS_ON, FALSE, FALSE);
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}
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} else {
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if (QueryLineStatus(doc, y+1, DASM_LABEL_LINE)) {
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y += 1;
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}
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}
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/*
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* Check for force addresses
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*/
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if (cmd & disasmForce) {
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if (lpaddr->addr.off == sds.addr.addr.off) {
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iForce = y;
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}
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}
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/*
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* Now finally get down to doing the actual disassembly. We
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* call the EM to get most of the information and then
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* just worry about the display
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*/
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if (OSDUnassemble(LppdCur->hpid, LptdCur->htid, &sds) == xosdNone) {
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if (fDisplay) {
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x = 0;
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InsertBlock(doc, x, y, 2, (LPSTR) "\r\n");
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if (sds.ichAddr != -1) {
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cb = strlen(&sds.lpch[sds.ichAddr]);
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InsertBlock(doc, x, y, cb, &sds.lpch[sds.ichAddr]);
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x = cb+1;
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}
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if (sds.ichBytes != -1) {
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cb = strlen(&sds.lpch[sds.ichBytes]);
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InsertBlock(doc, x, y, cb, &sds.lpch[sds.ichBytes]);
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x += __max(17, cb+1); // M00TODO -- 32-bits should be 17
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}
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if ((LppdCur->mptProcessorType == mptia64) && (sds.ichPreg != -1)) {
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cb = strlen(&sds.lpch[sds.ichPreg]);
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InsertBlock(doc, x, y, cb, &sds.lpch[sds.ichPreg]);
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x += __max(5, cb+1);
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}
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if (sds.ichOpcode != -1) {
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cb = strlen(&sds.lpch[sds.ichOpcode]);
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InsertBlock(doc, x, y, cb, &sds.lpch[sds.ichOpcode]);
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x += __max(12, cb+1);
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}
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else {
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InsertBlock(doc, x, y, 3, "???");
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x += 12;
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}
|
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if (sds.ichOperands != -1) {
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cb = strlen(&sds.lpch[sds.ichOperands]);
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InsertBlock(doc, x, y, cb, &sds.lpch[sds.ichOperands]);
|
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x += __max(25, cb+1);
|
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}
|
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if (sds.ichComment != -1) {
|
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cb = strlen(&sds.lpch[sds.ichComment]);
|
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InsertBlock(doc, x, y, cb, &sds.lpch[sds.ichComment]);
|
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x += __max(20, cb+1);
|
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}
|
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}
|
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|
||
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/*
|
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* Deal with highlighting
|
||
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*/
|
||
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|
||
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if (fHighlight) {
|
||
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LineStatus(doc, y+1, CURRENT_LINE, LINESTATUS_ON,
|
||
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FALSE, !fDisplay);
|
||
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fHighlight = FALSE;
|
||
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iPC = y;
|
||
|
} else if (QueryLineStatus(doc, y+1, CURRENT_LINE)) {
|
||
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LineStatus(doc, y+1, CURRENT_LINE, LINESTATUS_OFF,
|
||
|
FALSE, !fDisplay);
|
||
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|
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}
|
||
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|
||
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if (fBreakpt) {
|
||
|
LineStatus(doc, y+1, BRKPOINT_LINE, LINESTATUS_ON,
|
||
|
FALSE, !fDisplay);
|
||
|
} else if (QueryLineStatus(doc, y+1, BRKPOINT_LINE)) {
|
||
|
LineStatus(doc, y+1, BRKPOINT_LINE, LINESTATUS_OFF,
|
||
|
FALSE, !fDisplay);
|
||
|
}
|
||
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|
||
|
} else {
|
||
|
}
|
||
|
}
|
||
|
|
||
|
/*
|
||
|
* If we are doing a pc update then we must have
|
||
|
* this address displayed on the screen
|
||
|
*/
|
||
|
|
||
|
if ((cmd & disasmPC) && (iPC == -1) && fDisplay) {
|
||
|
AddrDisasm = *lpaddr;
|
||
|
sds.addr = AddrDisasm;
|
||
|
cmd &= ~disasmPC;
|
||
|
goto again;
|
||
|
}
|
||
|
|
||
|
/*
|
||
|
* Check to see if FORCE made it
|
||
|
*/
|
||
|
|
||
|
if ((cmd & disasmForce) && (iForce == -1) && fDisplay) {
|
||
|
AddrDisasm = *lpaddr;
|
||
|
sds.addr = AddrDisasm;
|
||
|
cmd &= ~disasmForce;
|
||
|
goto again;
|
||
|
}
|
||
|
|
||
|
/*
|
||
|
* Deal with force and none redisplay
|
||
|
*/
|
||
|
|
||
|
if ((cmd & DISASM_PC) == DISASM_PC) {
|
||
|
if (iLineFirst > iPC) {
|
||
|
iLineFirst = iPC;
|
||
|
} else if (iLineFirst + cLine < iPC) {
|
||
|
iLineFirst = iPC;
|
||
|
}
|
||
|
iLineCur = iPC;
|
||
|
|
||
|
if (fDisplay) {
|
||
|
;
|
||
|
} else {
|
||
|
v->iYTop = iLineFirst;
|
||
|
InvalidateLines(disasmView, 0, LAST_LINE, FALSE);
|
||
|
}
|
||
|
}
|
||
|
|
||
|
|
||
|
// Force a full repaint of the screen
|
||
|
|
||
|
|
||
|
if (fDisplay) {
|
||
|
v->iYTop = iLineFirst;
|
||
|
InvalidateLines(disasmView, 0, LAST_LINE, FALSE);
|
||
|
|
||
|
CbDisasm = (UINT) (sds.addr.addr.off - AddrDisasm.addr.off);
|
||
|
CLinesDisasm = cLine;
|
||
|
}
|
||
|
|
||
|
if (iLineCur != -1) {
|
||
|
iLineCur = min(iLineCur, Docs[v->Doc].NbLines-1);
|
||
|
v->Y = iLineCur;
|
||
|
if (curView == disasmView) {
|
||
|
SetCaret(disasmView, v->X, v->Y, -1);
|
||
|
}
|
||
|
}
|
||
|
|
||
|
DisasmSetVScroll();
|
||
|
fRecurse = FALSE;
|
||
|
return;
|
||
|
} /* ViewDisasm() */
|
||
|
|
||
|
|
||
|
/*** DisasmGetAddrFromLine
|
||
|
|
||
|
** Synopsis:
|
||
|
** bool = DisasmGetAddrFromLine( lpAddr, iLine )
|
||
|
|
||
|
** Entry:
|
||
|
** lpAddr - pointer to address structure to fill in
|
||
|
** iLIne - line number to get address of
|
||
|
** pbSegAlwaysZero - May be NULL.
|
||
|
|
||
|
** This is dependent on the format of the
|
||
|
** string passed into the function. With some formats, the segment
|
||
|
** is always zero, with others, the segment may or may not be zero.
|
||
|
|
||
|
** TRUE - Indicates that the segment of the address will always be
|
||
|
** 0 regardless of the value passed in.
|
||
|
** FALSE - The segment may or may not be zero.
|
||
|
|
||
|
** Return:
|
||
|
** TRUE if an address was retrived else FALSE
|
||
|
|
||
|
** Description:
|
||
|
** This function is used to get the address corresponding to
|
||
|
** a line in the disassembler window.
|
||
|
*/
|
||
|
|
||
|
BOOL
|
||
|
DisasmGetAddrFromLine(
|
||
|
LPADDR lpAddr,
|
||
|
DWORD iLine,
|
||
|
PBOOL pbSegAlwaysZero
|
||
|
)
|
||
|
{
|
||
|
int doc = Views[disasmView].Doc;
|
||
|
LPBLOCKDEF pb;
|
||
|
LPLINEREC pl;
|
||
|
long first = iLine;
|
||
|
char FAR * lpch;
|
||
|
char ch;
|
||
|
char rgch[50];
|
||
|
|
||
|
/*
|
||
|
** Check to see if there is assembler or source code on this line
|
||
|
** don't allow to goto source code only to assembler
|
||
|
*/
|
||
|
|
||
|
FirstLine(doc, &pl, &first, &pb);
|
||
|
|
||
|
lpch = &pl->Text[0];
|
||
|
if ((*lpch < '0') || (*lpch > '9')) {
|
||
|
return FALSE;
|
||
|
}
|
||
|
|
||
|
while ((*lpch != 0) &&
|
||
|
((('0' <= *lpch) && (*lpch <= '9')) ||
|
||
|
(('a' <= *lpch) && (*lpch <= 'f')) ||
|
||
|
(('A' <= *lpch) && (*lpch <= 'F')) ||
|
||
|
('x' == *lpch) ||
|
||
|
(':' == *lpch) ||
|
||
|
('#' == *lpch))) {
|
||
|
lpch++;
|
||
|
}
|
||
|
|
||
|
ch = *lpch;
|
||
|
*lpch = 0;
|
||
|
|
||
|
strcpy(rgch, &pl->Text[0]);
|
||
|
*lpch = ch;
|
||
|
|
||
|
|
||
|
if (CPUnformatAddr(lpAddr, rgch, pbSegAlwaysZero) != CPNOERROR) {
|
||
|
return FALSE;
|
||
|
}
|
||
|
|
||
|
SYUnFixupAddr(lpAddr);
|
||
|
SYFixupAddr(lpAddr);
|
||
|
|
||
|
return TRUE;
|
||
|
} /* DisasmGetAddrLine() */
|
||
|
|
||
|
|
||
|
|
||
|
void
|
||
|
DisasmSetVScroll(
|
||
|
VOID
|
||
|
)
|
||
|
|
||
|
/*++
|
||
|
|
||
|
Routine Description:
|
||
|
|
||
|
This routine is used to set the vertical scroll bar position. It
|
||
|
will get the first line which has an address and then position
|
||
|
the scroll bar according to that address. Additionally it will
|
||
|
adjust the scroll bar range if necessary according to the address.
|
||
|
|
||
|
Arguments:
|
||
|
|
||
|
none
|
||
|
|
||
|
Return Value:
|
||
|
|
||
|
None.
|
||
|
|
||
|
--*/
|
||
|
|
||
|
{
|
||
|
LONGLONG q;
|
||
|
long i;
|
||
|
ADDR addr;
|
||
|
|
||
|
/*
|
||
|
* Check that there is something in the window first.
|
||
|
*/
|
||
|
|
||
|
if ((disasmView == -1) ||
|
||
|
(Docs[Views[disasmView].Doc].NbLines < 1)) {
|
||
|
return;
|
||
|
}
|
||
|
|
||
|
/*
|
||
|
* Get the first address after the top line in the window
|
||
|
*/
|
||
|
|
||
|
for (i=0; TRUE; i++) {
|
||
|
if (Docs[Views[disasmView].Doc].NbLines <= i+Views[disasmView].iYTop) {
|
||
|
return;
|
||
|
}
|
||
|
|
||
|
if (DisasmGetAddrFromLine( &addr, i+Views[disasmView].iYTop )) {
|
||
|
break;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
/*
|
||
|
* Now set the position in the scroll bar
|
||
|
*/
|
||
|
|
||
|
q = addr.addr.off - UlBaseOff;
|
||
|
|
||
|
if ((q < 2*1024) || (q > 6*1024)) {
|
||
|
UlBaseOff = ((addr.addr.off + 2*1024 - 1) & ~(4*1024-1)) - 4*1024;
|
||
|
q = addr.addr.off - UlBaseOff;
|
||
|
|
||
|
}
|
||
|
|
||
|
|
||
|
SetScrollPos(Views[disasmView].hwndClient, SB_VERT, (long)q, TRUE);
|
||
|
} /* DisasmSetVScroll() */
|
||
|
|
||
|
|
||
|
|
||
|
void
|
||
|
DoVertScroll(
|
||
|
HWND hwnd,
|
||
|
UINT uMsg,
|
||
|
WPARAM wParam,
|
||
|
LPARAM lParam
|
||
|
)
|
||
|
|
||
|
/*++
|
||
|
|
||
|
Routine Description:
|
||
|
|
||
|
This routine is used to process the vertical scroll messages for the
|
||
|
disassembly window
|
||
|
|
||
|
Arguments:
|
||
|
|
||
|
hwnd - Supplies the handle to the disassmbly window
|
||
|
|
||
|
uMsg - Original window message. Used to distinguish between the
|
||
|
"mouse wheel" and the scroll bar
|
||
|
|
||
|
wParam - Supplies the wParam of the WM_VSCROLL message
|
||
|
|
||
|
lparam - Supplies the lParam of the WM_VSCROLL message
|
||
|
|
||
|
Return Value:
|
||
|
|
||
|
None.
|
||
|
|
||
|
--*/
|
||
|
|
||
|
{
|
||
|
int vScrollInc;
|
||
|
int vScrollPos;
|
||
|
RECT rcl;
|
||
|
int lines;
|
||
|
int vWinLines;
|
||
|
LPVIEWREC v = &Views[disasmView];
|
||
|
int newY;
|
||
|
ADDR addr;
|
||
|
|
||
|
/*
|
||
|
* Get info we need
|
||
|
*/
|
||
|
|
||
|
vScrollPos = v->iYTop;
|
||
|
lines = Docs[v->Doc].NbLines - 1;
|
||
|
GetClientRect(hwnd, &rcl);
|
||
|
vWinLines = max( 1, rcl.bottom / v->charHeight);
|
||
|
|
||
|
if (WM_MOUSEWHEEL == uMsg) {
|
||
|
vScrollInc = -((short) HIWORD(wParam)) / WHEEL_DELTA; // wheel rotation
|
||
|
} else {
|
||
|
switch (LOWORD(wParam)) {
|
||
|
case SB_LINEUP:
|
||
|
vScrollInc = -1;
|
||
|
break;
|
||
|
|
||
|
case SB_LINEDOWN:
|
||
|
vScrollInc = 1;
|
||
|
break;
|
||
|
|
||
|
case SB_PAGEUP:
|
||
|
if (vWinLines > 6) {
|
||
|
vScrollInc = -vWinLines + 3;
|
||
|
} else {
|
||
|
vScrollInc = -vWinLines;
|
||
|
}
|
||
|
break;
|
||
|
|
||
|
case SB_PAGEDOWN:
|
||
|
if (vWinLines > 6) {
|
||
|
vScrollInc = vWinLines - 3;
|
||
|
} else {
|
||
|
vScrollInc = vWinLines;
|
||
|
}
|
||
|
break;
|
||
|
|
||
|
case SB_THUMBPOSITION:
|
||
|
memcpy(&addr, &AddrDisasm, sizeof(ADDR));
|
||
|
SYFixupAddr(&addr);
|
||
|
// align the offset to 32 bit machine word as PPC/MIPS/ALPHA
|
||
|
// instructions are 32 bits wide each
|
||
|
// It does not matter to the x86 as it always disasm -0x100
|
||
|
// ahead to get in sync.
|
||
|
addr.addr.off = (UlBaseOff + HIWORD(wParam)) & ~0x3;
|
||
|
DisasmAlignInstr(&addr); // realign starting address in x86 case
|
||
|
Unreferenced( lParam );
|
||
|
ViewDisasm(&addr, disasmForce);
|
||
|
return;
|
||
|
|
||
|
default:
|
||
|
return;
|
||
|
|
||
|
}
|
||
|
}
|
||
|
|
||
|
|
||
|
// Some adjustments may be necessary to deal with the fact
|
||
|
// that the window is created on the fly.
|
||
|
|
||
|
// Are we paging to some place which is prior to the current
|
||
|
// start of the window. If so then we need to generate some
|
||
|
// more information at the start of the file.
|
||
|
|
||
|
|
||
|
if (vScrollPos + vScrollInc < 0) {
|
||
|
do {
|
||
|
ViewDisasm(NULL, disasmUpPage);
|
||
|
vScrollPos = v->iYTop;
|
||
|
if (AddrDisasm.addr.off == 0) {
|
||
|
break;
|
||
|
}
|
||
|
if (lines == Docs[v->Doc].NbLines - 1) {
|
||
|
break;
|
||
|
}
|
||
|
lines = Docs[v->Doc].NbLines - 1;
|
||
|
} while (vScrollPos + vScrollInc < 0);
|
||
|
lines = Docs[v->Doc].NbLines - 1;
|
||
|
} else if (vScrollPos + vScrollInc + vWinLines > Docs[v->Doc].NbLines - 1) {
|
||
|
do {
|
||
|
ViewDisasm(NULL, disasmDownPage);
|
||
|
DAssert(vScrollPos == v->iYTop);
|
||
|
if (Docs[v->Doc].NbLines == 1) {
|
||
|
return;
|
||
|
}
|
||
|
if (lines == Docs[v->Doc].NbLines - 1) {
|
||
|
break;
|
||
|
}
|
||
|
lines = Docs[v->Doc].NbLines - 1;
|
||
|
} while (vScrollPos + vScrollInc + vWinLines > Docs[v->Doc].NbLines - 1);
|
||
|
lines = Docs[v->Doc].NbLines - 1;
|
||
|
}
|
||
|
|
||
|
|
||
|
|
||
|
// Continue with normal code VScroll code
|
||
|
|
||
|
|
||
|
newY = min(lines, v->Y + vScrollInc);
|
||
|
|
||
|
if (vScrollInc < 0) {
|
||
|
vScrollInc = max(vScrollInc, -vScrollPos);
|
||
|
} else {
|
||
|
lines -=(vScrollPos + vWinLines);
|
||
|
if ((rcl.bottom + v->charHeight - 1) % v->charHeight) {
|
||
|
lines++;
|
||
|
}
|
||
|
vScrollInc = max(min(vScrollInc, lines), 0);
|
||
|
}
|
||
|
vScrollPos += vScrollInc;
|
||
|
|
||
|
if (vScrollInc != 0) {
|
||
|
|
||
|
|
||
|
// Set scroll-bar positions before refreshing the screen because
|
||
|
// we use the scroll-bar positions during the PAINT event
|
||
|
|
||
|
|
||
|
v->iYTop = vScrollPos;
|
||
|
|
||
|
ScrollWindow(hwnd, 0, - v->charHeight * vScrollInc, NULL, NULL);
|
||
|
UpdateWindow(hwnd);
|
||
|
|
||
|
}
|
||
|
|
||
|
#if 0
|
||
|
if (scrollOrigin & FROM_KEYBOARD) {
|
||
|
if (scrollOrigin & SELECTING) {
|
||
|
int OldYR;
|
||
|
|
||
|
if (!v->BlockStatus) {
|
||
|
v->BlockStatus = TRUE;
|
||
|
v->BlockXL = v->BlockXR = v->X;
|
||
|
v->BlockYL = v->BlockYR = v->Y;
|
||
|
}
|
||
|
PosXY(view, v->X, newY, FALSE);
|
||
|
OldYR = v->BlockYR;
|
||
|
v->BlockXR = v->X;
|
||
|
v->BlockYR = v->Y;
|
||
|
InvalidateLines(view, min(OldYR, v->BlockYR), max (OldYR, v->BlockYR), FALSE);
|
||
|
} else {
|
||
|
PosXY(view, v->X, newY, FALSE);
|
||
|
}
|
||
|
}
|
||
|
#endif // 0
|
||
|
return;
|
||
|
} /* DoVertScroll() */
|
||
|
|
||
|
/*** DisasmEditProc
|
||
|
|
||
|
** Synopsis:
|
||
|
** long = DisasmEditProc(hwnd, msg, wParam, lParam)
|
||
|
|
||
|
** Entry:
|
||
|
** hwnd - window handle to the disassembly window
|
||
|
** msg - Message to be processes
|
||
|
** wParam - info about the message
|
||
|
** lParam - info about the message
|
||
|
|
||
|
** Returns:
|
||
|
|
||
|
** Description:
|
||
|
** This function is the window message processor for the disassembly
|
||
|
** window class. It processes those messages which are of interest
|
||
|
** to this specific window class and passes all other messages on to
|
||
|
** the default MDI window procedure handler
|
||
|
|
||
|
*/
|
||
|
|
||
|
LRESULT
|
||
|
FAR PASCAL EXPORT
|
||
|
DisasmEditProc(
|
||
|
HWND hwnd,
|
||
|
UINT uMsg,
|
||
|
WPARAM wParam,
|
||
|
LPARAM lParam
|
||
|
)
|
||
|
{
|
||
|
|
||
|
switch ( uMsg ) {
|
||
|
case WU_INITDEBUGWIN:
|
||
|
StDisasm = DISASM_NONE;
|
||
|
memset(&AddrDisasm, 0, sizeof(AddrDisasm));
|
||
|
UlBaseOff = 1; /* Force the scroll bar to be hidden */
|
||
|
Views[disasmView].iYTop = 0; /* Give use a line to start with */
|
||
|
if (DebuggeeActive()) {
|
||
|
UlBaseOff = 0;
|
||
|
ViewDisasm(SHpADDRFrompCXT(&CxfIp.cxt), DISASM_PC);
|
||
|
}
|
||
|
break;
|
||
|
|
||
|
case WM_KEYDOWN:
|
||
|
switch ( wParam ) {
|
||
|
case VK_PRIOR:
|
||
|
SendMessage(hwnd, WM_VSCROLL, SB_PAGEUP, 0);
|
||
|
return FALSE;
|
||
|
|
||
|
case VK_NEXT:
|
||
|
SendMessage(hwnd, WM_VSCROLL, SB_PAGEDOWN, 0);
|
||
|
return FALSE;
|
||
|
|
||
|
case VK_UP:
|
||
|
SendMessage(hwnd, WM_VSCROLL, SB_LINEUP, 0);
|
||
|
return FALSE;
|
||
|
|
||
|
case VK_DOWN:
|
||
|
SendMessage(hwnd, WM_VSCROLL, SB_LINEDOWN, 0);
|
||
|
return FALSE;
|
||
|
|
||
|
case VK_HOME:
|
||
|
ViewDisasm(SHpADDRFrompCXT(&CxfIp.cxt), DISASM_PC);
|
||
|
return FALSE;
|
||
|
}
|
||
|
return FALSE;
|
||
|
|
||
|
case WM_IME_REPORT:
|
||
|
if (IR_STRING == wParam) {
|
||
|
return TRUE;
|
||
|
}
|
||
|
break;
|
||
|
|
||
|
case WM_CHAR:
|
||
|
return FALSE;
|
||
|
|
||
|
case WM_MOUSEWHEEL:
|
||
|
case WM_VSCROLL:
|
||
|
DoVertScroll(hwnd, uMsg, wParam, lParam);
|
||
|
//SetFocus (hwnd);
|
||
|
return FALSE;
|
||
|
|
||
|
case WM_FONTCHANGE:
|
||
|
ViewDisasm(&AddrDisasm, DISASM_OTHER);
|
||
|
return FALSE;
|
||
|
|
||
|
case WM_SIZE:
|
||
|
CallWindowProc(lpfnEditProc, hwnd, uMsg, wParam, lParam);
|
||
|
if (wParam != SIZEICONIC) {
|
||
|
ViewDisasm(&AddrDisasm, DISASM_OTHER);
|
||
|
}
|
||
|
WindowTitle( disasmView, 0 );
|
||
|
return FALSE;
|
||
|
|
||
|
}
|
||
|
return CallWindowProc(lpfnEditProc, hwnd, uMsg, wParam, lParam);
|
||
|
} /* DisasmWndProc() */
|
||
|
|
||
|
/*** DsmGetBackAddress
|
||
|
|
||
|
** Synopsis:
|
||
|
** int = DsmGetBackAddress()
|
||
|
|
||
|
** Entry:
|
||
|
** None
|
||
|
|
||
|
** Returns:
|
||
|
** count of lines in the added space
|
||
|
|
||
|
** Description:
|
||
|
|
||
|
*/
|
||
|
|
||
|
int
|
||
|
DsmGetBackAddress()
|
||
|
{
|
||
|
SDI sdi;
|
||
|
int i;
|
||
|
ADDR addr = {0};
|
||
|
ADDR addr2 = {0};
|
||
|
ADDR addrT2 = {0};
|
||
|
char rgchSymbol[512];
|
||
|
ODR odr;
|
||
|
char * lpchSymbol;
|
||
|
|
||
|
sdi.addr = AddrDisasm;
|
||
|
sdi.dop = 0;
|
||
|
if (sdi.addr.addr.off < 0x100) {
|
||
|
sdi.addr.addr.off = 0;
|
||
|
} else {
|
||
|
sdi.addr.addr.off -= 0x100;
|
||
|
|
||
|
|
||
|
// disassemble 10 instructions in an attempt to syncronize with
|
||
|
// the true code stream
|
||
|
|
||
|
|
||
|
for (i=0; i<10; i++) {
|
||
|
if (OSDUnassemble(LppdCur->hpid, LptdCur->htid, &sdi) == xosdNone) {
|
||
|
} else {
|
||
|
Assert(FALSE);
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
|
||
|
addr = sdi.addr;
|
||
|
odr.lszName = rgchSymbol;
|
||
|
for (i=0; TRUE; i++) {
|
||
|
if (sdi.addr.addr.off >= AddrDisasm.addr.off) {
|
||
|
AddrDisasm = addr;
|
||
|
return( i );
|
||
|
}
|
||
|
addr2 = sdi.addr;
|
||
|
addr2.emi = 0;
|
||
|
ADDR_IS_LI(addr2) = FALSE;
|
||
|
SYUnFixupAddr(&addr2);
|
||
|
|
||
|
lpchSymbol = SHGetSymbol(&addr2, &addrT2, sopNone, &odr);
|
||
|
// Check to see if SHGetSymbol screwed us over
|
||
|
Assert(strlen(rgchSymbol) < sizeof(rgchSymbol));
|
||
|
|
||
|
if ((lpchSymbol != NULL) && (odr.dwDeltaOff == 0)) {
|
||
|
i += 1;
|
||
|
}
|
||
|
|
||
|
if (OSDUnassemble(LppdCur->hpid, LptdCur->htid, &sdi) != xosdNone) {
|
||
|
Assert(FALSE);
|
||
|
}
|
||
|
}
|
||
|
Assert(FALSE);
|
||
|
return( 0 );
|
||
|
} /* DsmGetBackAddress() */
|
||
|
|
||
|
/*** DisasmAlignInstr
|
||
|
|
||
|
** Synopsis:
|
||
|
** DisasmAlignInstr
|
||
|
|
||
|
** Entry:
|
||
|
** Starting address
|
||
|
|
||
|
** Returns:
|
||
|
** None
|
||
|
|
||
|
** Description:
|
||
|
** Modify address offset to match instructions boundary if necessary.
|
||
|
*/
|
||
|
|
||
|
void
|
||
|
DisasmAlignInstr(
|
||
|
ADDR *curraddr
|
||
|
)
|
||
|
{
|
||
|
SDI sdi;
|
||
|
int i;
|
||
|
|
||
|
sdi.addr = *curraddr;
|
||
|
sdi.dop = 0;
|
||
|
if (sdi.addr.addr.off < 0x100) {
|
||
|
curraddr->addr.off = 0;
|
||
|
return;
|
||
|
} else {
|
||
|
sdi.addr.addr.off -= 0x100;
|
||
|
|
||
|
|
||
|
// disassemble 10 instructions in an attempt to syncronize with
|
||
|
// the true code stream
|
||
|
|
||
|
|
||
|
for (i=0;i<0x100;i++) {
|
||
|
if (OSDUnassemble(LppdCur->hpid, LptdCur->htid, &sdi) == xosdNone) {
|
||
|
} else {
|
||
|
Assert(FALSE);
|
||
|
}
|
||
|
if (sdi.addr.addr.off >= curraddr->addr.off) {
|
||
|
*curraddr = sdi.addr;
|
||
|
return;
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
|