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HLock, HUnlock, GetPtrSize

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This commit is contained in:
Kelvin Sherlock 2013-02-16 15:37:55 -05:00
parent ce5f23a1a2
commit 85f19644f3
3 changed files with 158 additions and 66 deletions
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198
toolbox/mm.cpp
View File

@ -145,69 +145,8 @@ namespace MM
}
uint16_t DisposePtr(uint16_t trap)
{
/*
* on entry:
* A0 Pointer to the nonrelocatable block to be disposed of
*
* on exit:
* D0 Result code
*
*/
uint32_t mcptr = cpuGetAReg(0);
fprintf(stderr, "%04x DisposePtr(%08x)\n", trap, mcptr);
auto iter = PtrMap.find(mcptr);
if (iter == PtrMap.end()) return SetMemError(memWZErr);
PtrMap.erase(iter);
uint8_t *ptr = mcptr + Memory;
mplite_free(&pool, ptr);
return SetMemError(0);
}
uint16_t DisposeHandle(uint16_t trap)
{
/*
* on entry:
* A0 Handle to be disposed of
*
* on exit:
* D0 Result code
*
*/
uint32_t hh = cpuGetAReg(0);
fprintf(stderr, "%04x DisposeHandle(%08x)\n", trap, hh);
auto iter = HandleMap.find(hh);
if (iter == HandleMap.end()) return SetMemError(memWZErr);
HandleInfo info = iter->second;
HandleMap.erase(iter);
uint8_t *ptr = info.address + Memory;
mplite_free(&pool, ptr);
HandleQueue.push_back(hh);
return SetMemError(0);
}
#pragma mark Pointers
uint16_t NewPtr(uint16_t trap)
{
@ -257,6 +196,56 @@ namespace MM
return SetMemError(0);
}
uint16_t DisposePtr(uint16_t trap)
{
/*
* on entry:
* A0 Pointer to the nonrelocatable block to be disposed of
*
* on exit:
* D0 Result code
*
*/
uint32_t mcptr = cpuGetAReg(0);
fprintf(stderr, "%04x DisposePtr(%08x)\n", trap, mcptr);
auto iter = PtrMap.find(mcptr);
if (iter == PtrMap.end()) return SetMemError(memWZErr);
PtrMap.erase(iter);
uint8_t *ptr = mcptr + Memory;
mplite_free(&pool, ptr);
return SetMemError(0);
}
uint32_t GetPtrSize(uint16_t trap)
{
/*
* on entry:
* A0 pointer
*
* on exit:
* D0 size (32-bit) or error code
*
*/
uint32_t mcptr = cpuGetAReg(0);
fprintf(stderr, "%08x GetPtrSize(%08x,)\n", trap, mcptr);
auto iter = PtrMap.find(mcptr);
if (iter == PtrMap.end()) return SetMemError(memWZErr);
return iter->second;
}
uint16_t SetPtrSize(uint16_t trap)
{
/*
@ -277,7 +266,6 @@ namespace MM
auto iter = PtrMap.find(mcptr);
if (iter == PtrMap.end()) return SetMemError(memWZErr);
PtrMap.erase(iter);
uint8_t *ptr = mcptr + Memory;
@ -286,9 +274,14 @@ namespace MM
return SetMemError(memFullErr);
}
// update the size.
iter->second = newSize;
return SetMemError(0);
}
#pragma mark Handles
uint16_t NewHandle(uint16_t trap)
{
/*
@ -350,6 +343,85 @@ namespace MM
return SetMemError(0);
}
uint16_t DisposeHandle(uint16_t trap)
{
/*
* on entry:
* A0 Handle to be disposed of
*
* on exit:
* D0 Result code
*
*/
uint32_t hh = cpuGetAReg(0);
fprintf(stderr, "%04x DisposeHandle(%08x)\n", trap, hh);
auto iter = HandleMap.find(hh);
if (iter == HandleMap.end()) return SetMemError(memWZErr);
HandleInfo info = iter->second;
HandleMap.erase(iter);
uint8_t *ptr = info.address + Memory;
mplite_free(&pool, ptr);
HandleQueue.push_back(hh);
return SetMemError(0);
}
#pragma mark Handle attributes
// these are all nops for now.
uint16_t HLock(uint16_t trap)
{
/*
* on entry:
* A0 Handle
*
* on exit:
* D0 Result code
*
*/
uint32_t hh = cpuGetAReg(0);
fprintf(stderr, "%04x HLock(%08x)\n", trap, hh);
auto iter = HandleMap.find(hh);
if (iter == HandleMap.end()) return SetMemError(memWZErr);
return 0;
}
uint16_t HUnlock(uint16_t trap)
{
/*
* on entry:
* A0 Handle
*
* on exit:
* D0 Result code
*
*/
uint32_t hh = cpuGetAReg(0);
fprintf(stderr, "%04x HUnlock(%08x)\n", trap, hh);
auto iter = HandleMap.find(hh);
if (iter == HandleMap.end()) return SetMemError(memWZErr);
return 0;
}
}

13
toolbox/mm.h
View File

@ -15,14 +15,21 @@ namespace MM
uint16_t BlockMove(uint16_t trap);
uint32_t CompactMem(uint16_t trap);
uint16_t DisposePtr(uint16_t trap);
uint16_t DisposeHandle(uint16_t trap);
uint16_t DisposePtr(uint16_t trap);
uint32_t GetHandleSize(uint16_t);
uint32_t GetPtrSize(uint16_t);
uint16_t NewPtr(uint16_t trap);
uint16_t NewHandle(uint16_t trap);
uint16_t NewPtr(uint16_t trap);
uint16_t SetPtrSize(uint16_t);
uint16_t SetHandleSize(uint16_t);
uint16_t SetPtrSize(uint16_t);
uint16_t HLock(uint16_t trap);
uint16_t HUnlock(uint16_t trap);
}

13
toolbox/toolbox.cpp
View File

@ -54,10 +54,23 @@ namespace ToolBox {
d0 = MM::SetPtrSize(trap);
break;
// GetPtrSize (p: Ptr) : Size
case 0xa021:
d0 = MM::GetPtrSize(trap);
break;
case 0xA023:
d0 = MM::DisposeHandle(trap);
break;
case 0xa029:
d0 = MM::HLock(trap);
break;
case 0xa02a:
d0 = MM::HUnlock(trap);
break;
// BlockMove (sourcePtr,destPtr: Ptr; byteCount: Size);
case 0xa02e:
d0 = MM::BlockMove(trap);