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99 lines
2.0 KiB
C
99 lines
2.0 KiB
C
/*
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*
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* (c) 2004,2005 Laurent Vivier <Laurent@Vivier.EU>
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*
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*/
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#ifndef __MACOS_MEMORY_H__
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#define __MACOS_MEMORY_H__
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#include <macos/types.h>
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#include <macos/errors.h>
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#include <macos/traps.h>
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#ifdef __mc68000__
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static inline void DisposePtr(void* ptr)
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{
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asm("move.l %0, %%a0\n"
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Trap(_DisposePtr)
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:: "g" (ptr) : "%%d0", UNPRESERVED_REGS);
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}
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static inline void* NewPtr(unsigned long byteCount)
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{
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register void* ptr;
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asm("move.l %1, %%d0\n"
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Trap(_NewPtr)
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" move.l %%a0, %0\n"
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: "=g" (ptr) : "g" (byteCount) : "%%d0", UNPRESERVED_REGS);
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return ptr;
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}
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typedef struct MemoryBlock {
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void *address;
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unsigned long count;
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} MemoryBlock;
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typedef struct LogicalToPhysicalTable {
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MemoryBlock logical;
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MemoryBlock physical[8];
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} LogicalToPhysicalTable;
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typedef short PageState;
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typedef short StatusRegisterContents;
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static inline OSErr LockMemory(void *address, unsigned long count)
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{
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register OSErr ret asm("%%d0");
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asm("move.l %1, %%a0\n"
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"move.l %2, %%a1\n"
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MemoryDispatch(_LockMemory)
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: "=d" (ret) : "a" (address), "a" (count)
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: UNPRESERVED_REGS );
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return ret;
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}
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static inline OSErr LockMemoryContiguous(void *address, unsigned long count)
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{
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register OSErr ret asm("%%d0");
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asm("move.l %1, %%a0\n"
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"move.l %2, %%a1\n"
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MemoryDispatch(_LockMemoryContiguous)
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: "=d" (ret) : "a" (address), "a" (count)
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: UNPRESERVED_REGS );
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return ret;
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}
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static inline OSErr GetPhysical(LogicalToPhysicalTable *addresses,
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unsigned long *physicalEntryCount)
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{
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register OSErr ret asm("%%d0");
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asm("move.l %1, %%a0\n"
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"move.l %2, %%a1\n"
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MemoryDispatch(_GetPhysical)
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: "=d" (ret) : "a" (addresses), "a" (physicalEntryCount)
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: UNPRESERVED_REGS );
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return ret;
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}
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static inline StatusRegisterContents EnterSupervisorMode(void)
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{
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register StatusRegisterContents ret asm("%%d0");
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asm(DebugUtil(_EnterSupervisorMode)
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: "=d" (ret) : : UNPRESERVED_REGS );
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return ret;
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}
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#endif /* __mc68000__ */
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#endif /* __MACOS_MEMORY_H__ */
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