first very unfinished commit lol

1 files changed, 110 insertions, 0 deletions

diff --git a/PCode.h b/PCode.h
new file mode 100644
index 0000000..601cfdc
--- /dev/null
+++ b/PCode.h
@@ -0,0 +1,110 @@
+#pragma once
+
+typedef struct _PCodeArg {
+    unsigned int _0;
+    unsigned int _4;
+    unsigned int _8;
+} PCodeArg;
+
+typedef struct _PCode {
+    struct _PCode *nextPCode;
+    struct _PCode *prevPCode;
+    struct _PCBlock *block;
+    unsigned int xx_C;
+    unsigned int _10;
+    int flags;
+    unsigned int _18;
+    unsigned int _1C;
+    short op;
+    short argCount;
+    PCodeArg args[0];
+} PCode;
+
+typedef struct _PCLabel {
+    struct _PCLabel *nextLabel;
+    struct _PCBlock *block;
+    short resolved;
+    short index;
+} PCLabel;
+
+typedef struct _PCLink {
+    struct _PCLink *nextLink;
+    struct _PCBlock *block;
+} PCLink;
+
+typedef struct _PCBlock {
+    struct _PCBlock *nextBlock;
+    struct _PCBlock *prevBlock;
+    PCLabel *labels;
+    PCLink *predecessors;
+    PCLink *successors;
+    PCode *firstPCode;
+    PCode *lastPCode;
+    int blockIndex;
+    int codeOffset; // in bytes
+    int loopWeight;
+    short pcodeCount;
+    unsigned short flags;
+} PCBlock;
+
+/* PCode Flags */
+enum {
+    fPCodeFlag1 = 1,
+    fPCodeFlag2 = 2,
+    fPCodeFlag4 = 4,
+    fPCodeFlag8 = 8,
+    fPCodeFlag10 = 0x10,
+    fIsPtrOp = 0x20,
+    fIsConst = 0x40,
+    fIsVolatile = 0x80,
+    fSideEffects = 0x100,
+    fPCodeFlag200 = 0x200,
+    fPCodeFlag400 = 0x400,
+    fPCodeFlag800 = 0x800,
+    fPCodeFlag1000 = 0x1000,
+    fCommutative = 0x2000,
+    fIsCSE = 0x4000,
+    fOverflow = 0x800000,
+    fLink = 0x1000000,
+    fBranchNotTaken = 0x4000000,
+    fBranchTaken = 0x8000000,
+    fAbsolute = 0x10000000,
+    fSetsCarry = 0x10000000,
+};
+
+enum {
+    fPCBlockFlag1 = 1,
+    fPCBlockFlag2 = 2,
+    fPCBlockFlag4 = 4,
+    fPCBlockFlag8 = 8,
+    fPCBlockFlag10 = 0x10,
+    fPCBlockFlag20 = 0x20
+};
+
+extern PCBlock *pcbasicblocks;
+extern PCBlock *pclastblock;
+extern void *prologue;
+extern void *epilogue;
+extern PCBlock **depthfirstordering;
+extern int pcblockcount;
+extern int pcloopweight;
+
+extern void initpcode();
+extern PCode *makepcode(short op, ...);
+extern void emitpcode(short op, ...);
+extern PCode *copypcode(PCode *pcode);
+extern PCLabel *makepclabel();
+extern PCBlock *makepcblock();
+extern void pclabel(PCBlock *block, PCLabel *label);
+extern void pcbranch(PCBlock *block, PCLabel *label);
+extern void pccomputepredecessors();
+extern void deleteblock(PCBlock *block);
+extern void deleteunreachableblocks();
+extern void appendpcode(PCBlock *block, PCode *pcode);
+extern void deletepcode(PCode *pcode);
+extern void insertpcodebefore(PCode *anchor, PCode *newpcode);
+extern void insertpcodeafter(PCode *anchor, PCode *newpcode);
+extern void setpcodeflags(int flags);
+extern void clearpcodeflags(int flags);
+extern int pccomputeoffsets();
+extern void computedepthfirstordering();