initial commit, unpacking platform.uw8

.gitignore

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+*.o
+/wasm3-test

.gitmodules

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+[submodule "wasm3"]
+	path = wasm3
+	url = https://github.com/wasm3/wasm3.git

Makefile

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+WASM3_C := $(wildcard wasm3/source/*.c)
+WASM3_O := $(WASM3_C:.c=.o)
+
+run: wasm3-test .PHONY
+	./wasm3-test
+
+wasm3-test: main.o $(WASM3_O)
+	gcc -g -lm -o wasm3-test $^
+
+wasm3/source/%.o: wasm3/source/%.c
+	gcc -g -c -o $@ $^
+
+main.o: main.c
+	gcc -g -c -o main.o main.c
+
+.PHONY:

main.c

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+#include "wasm3/source/wasm3.h"
+#include "wasm3/source/m3_env.h"
+#include <stdio.h>
+#include <malloc.h>
+
+void* loadFile(size_t* sizeOut, const char* filename) {
+  FILE* file = fopen(filename, "rb");
+  fseek(file, 0, SEEK_END);
+  size_t size = (size_t)ftell(file);
+  rewind(file);
+
+  void* buffer = malloc(size);
+  fread(buffer, size, 1, file);
+  fclose(file);
+  *sizeOut = size;
+  return buffer;
+}
+
+int main() {
+  IM3Environment env = m3_NewEnvironment();
+  IM3Runtime runtime = m3_NewRuntime(env, 16384, NULL);
+  runtime->memory.maxPages = 4;
+  ResizeMemory(runtime, 4);
+
+  uint8_t* memory = m3_GetMemory(runtime, NULL, 0);
+
+  size_t loaderSize;
+  void* loaderWasm = loadFile(&loaderSize, "loader.wasm");
+
+  IM3Module loaderMod;
+  m3_ParseModule(env, &loaderMod, loaderWasm, loaderSize);
+  loaderMod->memoryImported = true;
+  m3_LoadModule(runtime, loaderMod);
+
+  size_t runtimeUw8Size;
+  void* runtimeUw8 = loadFile(&runtimeUw8Size, "platform.uw8");
+  memcpy(memory, runtimeUw8, runtimeUw8Size);
+
+  IM3Function loadUw8;
+  m3_FindFunction(&loadUw8, runtime, "load_uw8");
+  m3_CallV(loadUw8, (uint32_t)runtimeUw8Size);
+  uint32_t runtimeSize;
+  m3_GetResultsV(loadUw8, &runtimeSize);
+  printf("size: %u\n", runtimeSize);
+
+  return 0;
+}