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Added a memory write boundary protection in the ram watch window to prevent users from writing into ROM memory area.

This commit is contained in:
Matthew Budd 2020-05-23 16:28:43 -04:00
parent c46d3e2a9d
commit 40379a32dc
1 changed files with 44 additions and 41 deletions
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85
src/drivers/sdl/ramwatch.cpp
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@ -949,53 +949,56 @@ static void ramWatch_cell_edited_cb (GtkCellRendererText * cell,
case 1:
case 2:
{
writefunc wfunc;
if (rw->size == 2)
if ( (rw->addr >= 0) && (rw->addr < 0x8000) )
{
if (rw->type)
writefunc wfunc;
if (rw->size == 2)
{
rw->val.u16 =
strtol (new_text, NULL, 0);
if (rw->type)
{
rw->val.u16 =
strtol (new_text, NULL, 0);
}
else
{
rw->val.i16 =
strtol (new_text, NULL, 0);
}
wfunc = GetWriteHandler (rw->addr);
if (wfunc)
{
wfunc ((uint32) rw->addr,
(uint8) (rw->val.u16 & 0x00ff));
}
wfunc = GetWriteHandler (rw->addr + 1);
if (wfunc)
{
wfunc ((uint32) rw->addr + 1,
(uint8) ((rw->val.
u16 & 0xff00) >> 8));
}
}
else
{
rw->val.i16 =
strtol (new_text, NULL, 0);
}
wfunc = GetWriteHandler (rw->addr);
if (rw->type)
{
rw->val.u8 = strtol (new_text, NULL, 0);
}
else
{
rw->val.i8 = strtol (new_text, NULL, 0);
}
wfunc = GetWriteHandler (rw->addr);
if (wfunc)
{
wfunc ((uint32) rw->addr,
(uint8) (rw->val.u16 & 0x00ff));
}
wfunc = GetWriteHandler (rw->addr + 1);
if (wfunc)
{
wfunc ((uint32) rw->addr + 1,
(uint8) ((rw->val.
u16 & 0xff00) >> 8));
}
}
else
{
if (rw->type)
{
rw->val.u8 = strtol (new_text, NULL, 0);
}
else
{
rw->val.i8 = strtol (new_text, NULL, 0);
}
wfunc = GetWriteHandler (rw->addr);
if (wfunc)
{
wfunc ((uint32) rw->addr,
(uint8) rw->val.u8);
if (wfunc)
{
wfunc ((uint32) rw->addr,
(uint8) rw->val.u8);
}
}
}
}