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58 lines
1.4 KiB
C
58 lines
1.4 KiB
C
#ifndef VM_H_C4OZU8CQ
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#define VM_H_C4OZU8CQ
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#include "datatypes.h"
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/* Exit from the VM normally */
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#define VMExit(vm, r) ((vm)->ret = (r), longjmp((vm)->jump, 1))
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/* Bail from the VM with an error. */
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#define VMError(vm, e) ((vm)->error = (e), longjmp((vm)->jump, 2))
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/* Crash. Not catchable, unlike error. */
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#define VMCrash(vm, e) ((vm)->error = (e), longjmp((vm)->jump, 3))
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/* Error if the condition is false */
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#define VMAssert(vm, cond, e) do \
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{ if (!(cond)) { VMError((vm), (e)); } } while (0)
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/* Type assertion */
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#define VMAssertType(vm, f, t) \
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VMAssert((vm), (f).type == (t), "Expected type,")
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/* Initialize the VM */
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void VMInit(VM * vm);
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/* Deinitialize the VM */
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void VMDeinit(VM * vm);
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/* Load a function to be run on the VM */
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void VMLoad(VM * vm, Value func);
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/* Start running the VM */
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int VMStart(VM * vm);
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/* Run garbage collection */
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void VMCollect(VM * vm);
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/* Collect garbage if enough memory has been allocated since
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* the previous collection */
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void VMMaybeCollect(VM * vm);
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/* Allocate memory */
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void * VMAlloc(VM * vm, uint32_t amount);
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/* Allocate zeroed memory */
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void * VMZalloc(VM * vm, uint32_t amount);
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/* Get an argument from the stack */
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Value VMGetArg(VM * vm, uint16_t index);
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/* Put a value on the stack */
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void VMSetArg(VM * vm, uint16_t index, Value x);
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/* Get the number of arguments on the stack */
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uint16_t VMCountArgs(VM * vm);
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#endif /* end of include guard: VM_H_C4OZU8CQ */
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