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Disassembler memory access check

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This commit is contained in:
Carl-Henrik Skårstedt 2015-12-14 00:27:12 -08:00
parent 7902863ccc
commit 1bf3afa0d0
2 changed files with 20 additions and 18 deletions
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6
disassembler/c64.lbl
View File

@ -70,6 +70,6 @@ CIA2_TimerB_Ctrl = $dd0f data
CIA2 = $dd10-$de00 data
IO_Area1 = $de00-$df00 data
IO_Area2 = $df00-$e000 data
Interrupt_NMI_Address = $fffa-$fffc data
Reset_Address = $fffc-$fffe data
Interrupt_Address = $fffe-$10000 data
NMIVector = $fffa-$fffc pointers vector to NMI interrupt
ResetVector = $fffc-$fffe pointers vector to reset address
IntVector = $fffe-$10000 pointers vector to interrupt address

32
disassembler/x65dsasm.cpp
View File

@ -1379,20 +1379,22 @@ void GetReferences(unsigned char *mem, size_t bytes, bool acc_16, bool ind_16, i
for (int i = 0; i<last_user; ++i) {
if (refs[i].data==DT_PTRS || refs[i].data==DT_PTRS_DATA) {
int num = refs[i].size ? (refs[i].size/2) : ((refs[i+1].address - refs[i].address)/2);
unsigned char *p = mem + refs[i].address - addr;
for (int l = 0; l<num; l++) {
int a = p[0] + ((unsigned short)p[1]<<8);
int n = GetLabelIndex(a);
int nr = (int)refs.size();
struct RefLink ref = { 2*l + refs[i].address, refs[i].data==DT_PTRS ? RT_JSR : RT_DATA };
if (n<0) {
refs.push_back(RefAddr(a));
refs[nr].pRefs = new std::vector<RefLink>();
refs[nr].data = refs[i].data==DT_PTRS_DATA ? DT_DATA : DT_CODE;
refs[nr].pRefs->push_back(ref);
} else
refs[n].pRefs->push_back(ref);
p += 2;
if (refs[i].address>=addr && (refs[i].address+refs[i].size)<=(addr+bytes)) {
unsigned char *p = mem + refs[i].address - addr;
for (int l = 0; l<num; l++) {
int a = p[0] + ((unsigned short)p[1]<<8);
int n = GetLabelIndex(a);
int nr = (int)refs.size();
struct RefLink ref = { 2*l + refs[i].address, refs[i].data==DT_PTRS ? RT_JSR : RT_DATA };
if (n<0) {
refs.push_back(RefAddr(a));
refs[nr].pRefs = new std::vector<RefLink>();
refs[nr].data = refs[i].data==DT_PTRS_DATA ? DT_DATA : DT_CODE;
refs[nr].pRefs->push_back(ref);
} else
refs[n].pRefs->push_back(ref);
p += 2;
}
}
}
}
@ -1954,7 +1956,7 @@ void Disassemble(strref filename, unsigned char *mem, size_t bytes, bool acc_16,
}
if (addr>refs[curr_label_index].address) {
if (ref.label)
out.sprintf(STRREF_FMT " = %02x\n", STRREF_ARG(ref.label), ref.address);
out.sprintf(STRREF_FMT " = $%02x\n", STRREF_ARG(ref.label), ref.address);
else
out.sprintf("%s_%d = $%02x\n", ref.local ? ".l" : (ref.data==DT_CODE ? "Code" : (ref.address>=0 && ref.address<0x100 ? "zp" : "Data")),
ref.number, ref.address);