From 1ce97d1acc0382989526407152cb37e6b3cc4556 Mon Sep 17 00:00:00 2001
From: "Wolfgang (Blub) Bumiller" <blub@speed.at>
Date: Wed, 27 Jun 2012 13:21:37 +0200
Subject: [PATCH] Executor now executes and traces

---
 Makefile           |   1 +
 exec.c             | 287 ++++++++++++++++++++++-
 qcvm_execprogram.h | 568 +++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 851 insertions(+), 5 deletions(-)
 create mode 100644 qcvm_execprogram.h

diff --git a/Makefile b/Makefile
index a7b2ac1..eaa10a0 100644
--- a/Makefile
+++ b/Makefile
@@ -42,6 +42,7 @@ test_ir:  $(OBJ_I) $(OBJ)
 	$(CC) -o $@ $^ $(CFLAGS)
 qcvm:     $(OBJ_X)
 	$(CC) -o $@ $^ $(CFLAGS)
+exec.o: qcvm_execprogram.h
 test: test_ast test_ir
 
 # compiler target
diff --git a/exec.c b/exec.c
index a3c04eb..4c27a73 100644
--- a/exec.c
+++ b/exec.c
@@ -51,6 +51,16 @@ bool GMQCC_WARN Tself##_##mem##_resize(Tself *s, size_t c)       \
 typedef float   qcfloat;
 typedef int32_t qcint;
 
+typedef union {
+    qcint   _int;
+    qcint    string;
+    qcint    function;
+    qcint    edict;
+    qcfloat _float;
+    qcfloat vector[3];
+    qcint   ivector[3];
+} qcany;
+
 typedef char qcfloat_size_is_correct [sizeof(qcfloat) == 4 ?1:-1];
 typedef char qcint_size_is_correct   [sizeof(int)     == 4 ?1:-1];
 
@@ -84,7 +94,23 @@ enum {
     VMERR_END
 };
 
+#define JUMPS_DEFAULT 1000000
+
+#define VMXF_DEFAULT 0x0000
+#define VMXF_TRACE   0x0001
+#define VMXF_PROFILE 0x0002
+
+struct qc_program_s;
+
+typedef int (*prog_builtin)(struct qc_program_s *prog);
+
 typedef struct {
+    qcint          stmt;
+    size_t         localsp;
+    prog_function *function;
+} qc_exec_stack;
+
+typedef struct qc_program_s {
     char           *filename;
 
     MEM_VECTOR_MAKE(prog_statement, code);
@@ -100,8 +126,20 @@ typedef struct {
 
     qcint  vmerror;
 
-    MEM_VECTOR_MAKE(qcint,  localstack);
-    MEM_VECTOR_MAKE(size_t, localsp);
+    MEM_VECTOR_MAKE(size_t, profile);
+
+    MEM_VECTOR_MAKE(prog_builtin, builtins);
+
+    /* size_t ip; */
+    qcint  entities;
+    size_t entityfields;
+    bool   allowworldwrites;
+
+    MEM_VECTOR_MAKE(qcint,         localstack);
+    MEM_VECTOR_MAKE(qc_exec_stack, stack);
+    size_t statement;
+
+    int    argc; /* current arg count for debugging */
 } qc_program;
 MEM_VEC_FUNCTIONS(qc_program, prog_statement, code)
 MEM_VEC_FUNCTIONS(qc_program, prog_def,       defs)
@@ -116,7 +154,10 @@ MEM_VEC_FUNCTIONS(qc_program, qcint,          entitydata)
 MEM_VEC_FUNCTIONS(qc_program,   qcint, localstack)
 _MEM_VEC_FUN_APPEND(qc_program, qcint, localstack)
 _MEM_VEC_FUN_RESIZE(qc_program, qcint, localstack)
-MEM_VEC_FUNCTIONS(qc_program,   size_t, localsp)
+MEM_VEC_FUNCTIONS(qc_program,   qc_exec_stack, stack)
+
+MEM_VEC_FUNCTIONS(qc_program,   size_t, profile)
+_MEM_VEC_FUN_RESIZE(qc_program, size_t, profile)
 
 qc_program* prog_load(const char *filename)
 {
@@ -149,6 +190,8 @@ qc_program* prog_load(const char *filename)
     }
     memset(prog, 0, sizeof(*prog));
 
+    prog->entityfields = header.entfield;
+
     prog->filename = util_strdup(filename);
     if (!prog->filename)
         goto error;
@@ -178,6 +221,10 @@ qc_program* prog_load(const char *filename)
 
     fclose(file);
 
+    /* profile counters */
+    if (!qc_program_profile_resize(prog, prog->code_count))
+        goto error;
+
     /* Add tempstring area */
     prog->tempstring_start = prog->strings_count;
     prog->tempstring_at    = prog->strings_count;
@@ -210,7 +257,8 @@ void prog_delete(qc_program *prog)
     MEM_VECTOR_CLEAR(prog, globals);
     MEM_VECTOR_CLEAR(prog, entitydata);
     MEM_VECTOR_CLEAR(prog, localstack);
-    MEM_VECTOR_CLEAR(prog, localsp);
+    MEM_VECTOR_CLEAR(prog, stack);
+    MEM_VECTOR_CLEAR(prog, profile);
     mem_d(prog);
 }
 
@@ -221,10 +269,35 @@ void prog_delete(qc_program *prog)
 char* prog_getstring(qc_program *prog, qcint str)
 {
     if (str < 0 || str >= prog->strings_count)
-        return prog->strings;
+        return "<<<invalid string>>>";
     return prog->strings + str;
 }
 
+prog_def* prog_entfield(qc_program *prog, qcint off)
+{
+    size_t i;
+    for (i = 0; i < prog->fields_count; ++i) {
+        if (prog->fields[i].offset == off)
+            return (prog->fields + i);
+    }
+    return NULL;
+}
+
+prog_def* prog_getdef(qc_program *prog, qcint off)
+{
+    size_t i;
+    for (i = 0; i < prog->defs_count; ++i) {
+        if (prog->defs[i].offset == off)
+            return (prog->defs + i);
+    }
+    return NULL;
+}
+
+qcany* prog_getedict(qc_program *prog, qcint e)
+{
+    return (qcany*)(prog->entitydata + (prog->entityfields + e));
+}
+
 qcint prog_tempstring(qc_program *prog, const char *_str)
 {
     /* we don't access it, but the macro-generated functions don't use
@@ -256,6 +329,209 @@ qcint prog_tempstring(qc_program *prog, const char *_str)
     return at;
 }
 
+static void trace_print_global(qc_program *prog, unsigned int glob, int vtype)
+{
+    static char spaces[16+1] = "            ";
+    prog_def *def;
+    qcany    *value;
+    int       len;
+
+    if (!glob)
+        return;
+
+    def = prog_getdef(prog, glob);
+    value = (qcany*)(&prog->globals[glob]);
+
+    if (def) {
+        len = printf("[%s] ", prog_getstring(prog, def->name));
+        vtype = def->type;
+    }
+    else
+        len = printf("[#%u] ", glob);
+
+    switch (vtype) {
+        case TYPE_VOID:
+        case TYPE_ENTITY:
+        case TYPE_FIELD:
+        case TYPE_FUNCTION:
+        case TYPE_POINTER:
+            len += printf("%i,", value->_int);
+            break;
+        case TYPE_VECTOR:
+            len += printf("'%g %g %g',", value->vector[0],
+                                         value->vector[1],
+                                         value->vector[2]);
+            break;
+        case TYPE_STRING:
+            len += printf("\"%s\",", prog_getstring(prog, value->string));
+            break;
+        case TYPE_FLOAT:
+        default:
+            len += printf("%g,", value->_float);
+            break;
+    }
+    if (len < 16) {
+        spaces[16-len] = 0;
+        printf(spaces);
+        spaces[16-len] = ' ';
+    }
+}
+
+static void prog_print_statement(qc_program *prog, prog_statement *st)
+{
+    if (st->opcode >= (sizeof(asm_instr)/sizeof(asm_instr[0]))) {
+        printf("<illegal instruction %d>\n", st->opcode);
+        return;
+    }
+    printf("%-12s", asm_instr[st->opcode].m);
+    if (st->opcode >= INSTR_IF &&
+        st->opcode <= INSTR_IFNOT)
+    {
+        trace_print_global(prog, st->o1.u1, TYPE_FLOAT);
+        printf("%d\n", st->o2.s1);
+    }
+    else if (st->opcode >= INSTR_CALL0 &&
+             st->opcode <= INSTR_CALL8)
+    {
+        printf("\n");
+    }
+    else if (st->opcode == INSTR_GOTO)
+    {
+        printf("%i\n", st->o1.s1);
+    }
+    else
+    {
+        int t[3] = { TYPE_FLOAT, TYPE_FLOAT, TYPE_FLOAT };
+        switch (st->opcode)
+        {
+            case INSTR_MUL_FV:
+                t[1] = t[2] = TYPE_VECTOR;
+                break;
+            case INSTR_MUL_VF:
+                t[0] = t[2] = TYPE_VECTOR;
+                break;
+            case INSTR_MUL_V:
+                t[0] = t[1] = TYPE_VECTOR;
+                break;
+            case INSTR_ADD_V:
+            case INSTR_SUB_V:
+            case INSTR_EQ_V:
+            case INSTR_NE_V:
+                t[0] = t[1] = t[2] = TYPE_VECTOR;
+                break;
+            case INSTR_EQ_S:
+            case INSTR_NE_S:
+                t[0] = t[1] = TYPE_STRING;
+                break;
+            case INSTR_STORE_V:
+                t[0] = t[1] = TYPE_VECTOR; t[2] = -1;
+                break;
+            case INSTR_STORE_S:
+                t[0] = t[1] = TYPE_STRING; t[2] = -1;
+                break;
+        }
+        if (t[0] >= 0) trace_print_global(prog, st->o1.u1, t[0]);
+        if (t[1] >= 0) trace_print_global(prog, st->o2.u1, t[1]);
+        if (t[2] >= 0) trace_print_global(prog, st->o3.u1, t[2]);
+        printf("\n");
+    }
+}
+
+qcint prog_enterfunction(qc_program *prog, prog_function *func)
+{
+    qc_exec_stack st;
+    prog_function *cur = NULL;
+
+    if (prog->stack_count)
+        cur = prog->stack[prog->stack_count-1].function;
+
+    /* back up locals */
+    st.localsp  = prog->localstack_count;
+    st.stmt     = prog->statement;
+    st.function = func;
+
+    if (cur)
+    {
+        qcint *globals = prog->globals + cur->firstlocal;
+        if (!qc_program_localstack_append(prog, globals, cur->locals))
+        {
+            printf("out of memory\n");
+            exit(1);
+        }
+    }
+
+    if (!qc_program_stack_add(prog, st)) {
+        printf("out of memory\n");
+        exit(1);
+    }
+
+    return func->entry;
+}
+
+qcint prog_leavefunction(qc_program *prog)
+{
+    qc_exec_stack st = prog->stack[prog->stack_count-1];
+    if (!qc_program_stack_remove(prog, prog->stack_count-1)) {
+        printf("out of memory\n");
+        exit(1);
+    }
+
+    if (st.localsp != prog->localstack_count) {
+        if (!qc_program_localstack_resize(prog, st.localsp)) {
+            printf("out of memory\n");
+            exit(1);
+        }
+    }
+
+    return st.stmt;
+}
+
+bool prog_exec(qc_program *prog, prog_function *func, size_t flags, long maxjumps)
+{
+    long jumpcount = 0;
+    prog_statement *st;
+
+    st = prog->code + prog_enterfunction(prog, func);
+    --st;
+    switch (flags)
+    {
+        default:
+        case 0:
+        {
+#define QCVM_PROFILE 0
+#define QCVM_TRACE   0
+#           include "qcvm_execprogram.h"
+            break;
+        }
+        case (VMXF_TRACE):
+        {
+#define QCVM_PROFILE 0
+#define QCVM_TRACE   1
+#           include "qcvm_execprogram.h"
+            break;
+        }
+        case (VMXF_PROFILE):
+        {
+#define QCVM_PROFILE 1
+#define QCVM_TRACE   0
+#           include "qcvm_execprogram.h"
+            break;
+        }
+        case (VMXF_TRACE|VMXF_PROFILE):
+        {
+#define QCVM_PROFILE 1
+#define QCVM_TRACE   1
+#           include "qcvm_execprogram.h"
+            break;
+        }
+    };
+
+cleanup:
+    prog->localstack_count = 0;
+    prog->stack_count = 0;
+    return true;
+}
+
 /***********************************************************************
  * main for when building the standalone executor
  */
@@ -286,6 +562,7 @@ int main(int argc, char **argv)
     }
     if (fnmain > 0)
     {
+        prog_exec(prog, &prog->functions[fnmain], VMXF_TRACE, JUMPS_DEFAULT);
     }
     else
         printf("No main function found\n");
diff --git a/qcvm_execprogram.h b/qcvm_execprogram.h
new file mode 100644
index 0000000..d134f43
--- /dev/null
+++ b/qcvm_execprogram.h
@@ -0,0 +1,568 @@
+#if 0
+    /* Expected variables */
+    qc_program     *prog;
+#endif
+
+#if !defined(QCVM_PROFILE)
+#   define   QCVM_PROFILE 0
+#endif
+
+#if !defined(QCVM_TRACE)
+#   define   QCVM_TRACE 0
+#endif
+
+#if !defined(FLOAT_IS_TRUE_FOR_INT)
+#   define FLOAT_IS_TRUE_FOR_INT(x) ( (x) & 0x7FFFFFFF )
+#endif
+
+#if !defined(PRVM_ERROR)
+#   define PRVM_ERROR printf
+#endif
+
+#if !defined(PRVM_NAME)
+#   define PRVM_NAME (prog->filename)
+#endif
+
+#if !defined(PROG_GETSTRING)
+#   define PROG_GETSTRING(x) prog_getstring(prog, (x))
+#endif
+
+#if !defined(PROG_ENTFIELD)
+#   define PROG_ENTFIELD(x) prog_entfield(prog, (x))
+#endif
+
+#if !defined(PROG_GETEDICT)
+#   define PROG_GETEDICT(x) prog_getedict(prog, (x))
+#endif
+
+#if !defined(PROG_ENTERFUNCTION)
+#   define PROG_ENTERFUNCTION(x) prog_enterfunction(prog, (x))
+#endif
+
+#if !defined(PROG_LEAVEFUNCTION)
+#   define PROG_LEAVEFUNCTION() prog_leavefunction(prog)
+#endif
+
+#define OPA ( (qcany*) (prog->globals + st->o1.u1) )
+#define OPB ( (qcany*) (prog->globals + st->o2.u1) )
+#define OPC ( (qcany*) (prog->globals + st->o3.u1) )
+#define GLOBAL(x) ( (qcany*) (prog->globals + (x)) )
+
+		while (1)
+		{
+		    prog_function  *newf;
+		    qcany          *ed;
+		    qcany          *ptr;
+
+            ++st;
+            /*
+			prog->ip++;
+		    st = prog->code + prog->ip;
+		    */
+
+#if QCVM_PROFILE
+            prog->profile[st - prog->code]++;
+#endif
+
+#if QCVM_TRACE
+            prog_print_statement(prog, st);
+#endif
+
+			switch (st->opcode)
+			{
+			case INSTR_ADD_F:
+				OPC->_float = OPA->_float + OPB->_float;
+				break;
+			case INSTR_ADD_V:
+				OPC->vector[0] = OPA->vector[0] + OPB->vector[0];
+				OPC->vector[1] = OPA->vector[1] + OPB->vector[1];
+				OPC->vector[2] = OPA->vector[2] + OPB->vector[2];
+				break;
+			case INSTR_SUB_F:
+				OPC->_float = OPA->_float - OPB->_float;
+				break;
+			case INSTR_SUB_V:
+				OPC->vector[0] = OPA->vector[0] - OPB->vector[0];
+				OPC->vector[1] = OPA->vector[1] - OPB->vector[1];
+				OPC->vector[2] = OPA->vector[2] - OPB->vector[2];
+				break;
+			case INSTR_MUL_F:
+				OPC->_float = OPA->_float * OPB->_float;
+				break;
+			case INSTR_MUL_V:
+				OPC->_float = OPA->vector[0]*OPB->vector[0] + OPA->vector[1]*OPB->vector[1] + OPA->vector[2]*OPB->vector[2];
+				break;
+			case INSTR_MUL_FV:
+				OPC->vector[0] = OPA->_float * OPB->vector[0];
+				OPC->vector[1] = OPA->_float * OPB->vector[1];
+				OPC->vector[2] = OPA->_float * OPB->vector[2];
+				break;
+			case INSTR_MUL_VF:
+				OPC->vector[0] = OPB->_float * OPA->vector[0];
+				OPC->vector[1] = OPB->_float * OPA->vector[1];
+				OPC->vector[2] = OPB->_float * OPA->vector[2];
+				break;
+			case INSTR_DIV_F:
+				if( OPB->_float != 0.0f )
+				{
+					OPC->_float = OPA->_float / OPB->_float;
+				}
+				else
+				{
+					OPC->_float = 0.0f;
+				}
+				break;
+			case INSTR_BITAND:
+				OPC->_float = (int)OPA->_float & (int)OPB->_float;
+				break;
+			case INSTR_BITOR:
+				OPC->_float = (int)OPA->_float | (int)OPB->_float;
+				break;
+			case INSTR_GE:
+				OPC->_float = OPA->_float >= OPB->_float;
+				break;
+			case INSTR_LE:
+				OPC->_float = OPA->_float <= OPB->_float;
+				break;
+			case INSTR_GT:
+				OPC->_float = OPA->_float > OPB->_float;
+				break;
+			case INSTR_LT:
+				OPC->_float = OPA->_float < OPB->_float;
+				break;
+			case INSTR_AND:
+/* TODO change this back to float, and add AND_I to be used by fteqcc for anything not a float */
+				OPC->_float = FLOAT_IS_TRUE_FOR_INT(OPA->_int) && FLOAT_IS_TRUE_FOR_INT(OPB->_int);
+				break;
+			case INSTR_OR:
+/* TODO change this back to float, and add AND_I to be used by fteqcc for anything not a float */
+				OPC->_float = FLOAT_IS_TRUE_FOR_INT(OPA->_int) || FLOAT_IS_TRUE_FOR_INT(OPB->_int);
+				break;
+			case INSTR_NOT_F:
+				OPC->_float = !FLOAT_IS_TRUE_FOR_INT(OPA->_int);
+				break;
+			case INSTR_NOT_V:
+				OPC->_float = !OPA->vector[0] && !OPA->vector[1] && !OPA->vector[2];
+				break;
+			case INSTR_NOT_S:
+				OPC->_float = !OPA->string || !*PROG_GETSTRING(OPA->string);
+				break;
+			case INSTR_NOT_FNC:
+				OPC->_float = !OPA->function;
+				break;
+			case INSTR_NOT_ENT:
+				OPC->_float = (OPA->edict == 0);
+				break;
+			case INSTR_EQ_F:
+				OPC->_float = OPA->_float == OPB->_float;
+				break;
+			case INSTR_EQ_V:
+				OPC->_float = (OPA->vector[0] == OPB->vector[0]) &&
+				              (OPA->vector[1] == OPB->vector[1]) &&
+				              (OPA->vector[2] == OPB->vector[2]);
+				break;
+			case INSTR_EQ_S:
+				OPC->_float = !strcmp(PROG_GETSTRING(OPA->string),PROG_GETSTRING(OPB->string));
+				break;
+			case INSTR_EQ_E:
+				OPC->_float = OPA->_int == OPB->_int;
+				break;
+			case INSTR_EQ_FNC:
+				OPC->_float = OPA->function == OPB->function;
+				break;
+			case INSTR_NE_F:
+				OPC->_float = OPA->_float != OPB->_float;
+				break;
+			case INSTR_NE_V:
+				OPC->_float = (OPA->vector[0] != OPB->vector[0]) || (OPA->vector[1] != OPB->vector[1]) || (OPA->vector[2] != OPB->vector[2]);
+				break;
+			case INSTR_NE_S:
+				OPC->_float = strcmp(PROG_GETSTRING(OPA->string),PROG_GETSTRING(OPB->string));
+				break;
+			case INSTR_NE_E:
+				OPC->_float = OPA->_int != OPB->_int;
+				break;
+			case INSTR_NE_FNC:
+				OPC->_float = OPA->function != OPB->function;
+				break;
+
+		/*==================*/
+			case INSTR_STORE_F:
+			case INSTR_STORE_ENT:
+			case INSTR_STORE_FLD:
+			case INSTR_STORE_S:
+			case INSTR_STORE_FNC:
+				OPB->_int = OPA->_int;
+				break;
+			case INSTR_STORE_V:
+				OPB->ivector[0] = OPA->ivector[0];
+				OPB->ivector[1] = OPA->ivector[1];
+				OPB->ivector[2] = OPA->ivector[2];
+				break;
+
+			case INSTR_STOREP_F:
+			case INSTR_STOREP_ENT:
+			case INSTR_STOREP_FLD:
+			case INSTR_STOREP_S:
+			case INSTR_STOREP_FNC:
+				if (OPB->_int < 0 || OPB->_int >= prog->entitydata_count)
+				{
+					PRVM_ERROR("%s attempted to write to an out of bounds edict (%i)", PRVM_NAME, OPB->_int);
+					goto cleanup;
+				}
+				if (OPB->_int < prog->entityfields && !prog->allowworldwrites)
+					PRVM_ERROR("ERROR: assignment to world.%s (field %i) in %s\n", PROG_GETSTRING(PROG_ENTFIELD(OPB->_int)->name), OPB->_int, PRVM_NAME);
+				ptr = (qcany*)(prog->entitydata + OPB->_int);
+				ptr->_int = OPA->_int;
+				break;
+			case INSTR_STOREP_V:
+				if (OPB->_int < 0 || OPB->_int + 3 >= prog->entitydata_count)
+				{
+					PRVM_ERROR("%s attempted to write to an out of bounds edict (%i)", PRVM_NAME, OPB->_int);
+					goto cleanup;
+				}
+				if (OPB->_int < prog->entityfields && !prog->allowworldwrites)
+					PRVM_ERROR("ERROR: assignment to world.%s (field %i) in %s\n", PROG_GETSTRING(PROG_ENTFIELD(OPB->_int)->name), OPB->_int, PRVM_NAME);
+				ptr = (qcany*)(prog->entitydata + OPB->_int);
+				ptr->ivector[0] = OPA->ivector[0];
+				ptr->ivector[1] = OPA->ivector[1];
+				ptr->ivector[2] = OPA->ivector[2];
+				break;
+
+			case INSTR_ADDRESS:
+				if (OPA->edict < 0 || OPA->edict >= prog->entities)
+				{
+					PRVM_ERROR ("%s Progs attempted to address an out of bounds edict number", PRVM_NAME);
+					goto cleanup;
+				}
+				if ((unsigned int)(OPB->_int) >= (unsigned int)(prog->entityfields))
+				{
+					PRVM_ERROR("%s attempted to address an invalid field (%i) in an edict", PRVM_NAME, OPB->_int);
+					goto cleanup;
+				}
+
+				ed = PROG_GETEDICT(OPA->edict);
+				OPC->_int = ((qcint*)ed) - prog->entitydata;
+				OPC->_int += OPB->_int;
+				break;
+
+			case INSTR_LOAD_F:
+			case INSTR_LOAD_FLD:
+			case INSTR_LOAD_ENT:
+			case INSTR_LOAD_S:
+			case INSTR_LOAD_FNC:
+				if (OPA->edict < 0 || OPA->edict >= prog->entities)
+				{
+					PRVM_ERROR ("%s Progs attempted to read an out of bounds edict number", PRVM_NAME);
+					goto cleanup;
+				}
+				if ((unsigned int)(OPB->_int) >= (unsigned int)(prog->entityfields))
+				{
+					PRVM_ERROR("%s attempted to read an invalid field in an edict (%i)", PRVM_NAME, OPB->_int);
+					goto cleanup;
+				}
+				ed = PROG_GETEDICT(OPA->edict);
+				OPC->_int = ((qcany*)( ((qcint*)ed) + OPB->_int ))->_int;
+				break;
+
+			case INSTR_LOAD_V:
+				if (OPA->edict < 0 || OPA->edict >= prog->entities)
+				{
+					PRVM_ERROR ("%s Progs attempted to read an out of bounds edict number", PRVM_NAME);
+					goto cleanup;
+				}
+				if (OPB->_int < 0 || OPB->_int + 3 >= prog->entityfields)
+				{
+					PRVM_ERROR("%s attempted to read an invalid field in an edict (%i)", PRVM_NAME, OPB->_int);
+					goto cleanup;
+				}
+				ed = PROG_GETEDICT(OPA->edict);
+				OPC->ivector[0] = ((qcany*)( ((qcint*)ed) + OPB->_int ))->ivector[0];
+				OPC->ivector[1] = ((qcany*)( ((qcint*)ed) + OPB->_int ))->ivector[1];
+				OPC->ivector[2] = ((qcany*)( ((qcint*)ed) + OPB->_int ))->ivector[2];
+				break;
+
+		/*==================*/
+
+			case INSTR_IFNOT:
+				if(!FLOAT_IS_TRUE_FOR_INT(OPA->_int))
+				/* TODO add an "int-if", and change this one to OPA->_float
+				   although mostly unneeded, thanks to the only float being false being 0x0 and 0x80000000 (negative zero)
+				   and entity, string, field values can never have that value
+				 */
+				{
+					st += st->o2.s1 - 1;	/* offset the s++ */
+					if (++jumpcount >= maxjumps)
+					{
+						PRVM_ERROR("%s runaway loop counter hit limit of %li jumps\ntip: read above for list of most-executed functions", PRVM_NAME, jumpcount);
+					}
+				}
+				break;
+
+			case INSTR_IF:
+				if(FLOAT_IS_TRUE_FOR_INT(OPA->_int))
+				{
+					st += st->o2.s1 - 1;	/* offset the s++ */
+					/* no bounds check needed, it is done when loading progs */
+					if (++jumpcount >= maxjumps)
+					{
+						PRVM_ERROR("%s runaway loop counter hit limit of %li jumps\ntip: read above for list of most-executed functions", PRVM_NAME, jumpcount);
+					}
+				}
+				break;
+
+			case INSTR_GOTO:
+				st += st->o1.s1 - 1;	/* offset the s++ */
+				/* no bounds check needed, it is done when loading progs */
+				if (++jumpcount == 10000000)
+				{
+					PRVM_ERROR("%s runaway loop counter hit limit of %li jumps\ntip: read above for list of most-executed functions", PRVM_NAME, jumpcount);
+				}
+				break;
+
+			case INSTR_CALL0:
+			case INSTR_CALL1:
+			case INSTR_CALL2:
+			case INSTR_CALL3:
+			case INSTR_CALL4:
+			case INSTR_CALL5:
+			case INSTR_CALL6:
+			case INSTR_CALL7:
+			case INSTR_CALL8:
+				prog->argc = st->opcode - INSTR_CALL0;
+				if (!OPA->function)
+					PRVM_ERROR("NULL function in %s", PRVM_NAME);
+
+				if(!OPA->function || OPA->function >= (unsigned int)prog->functions_count)
+				{
+					PRVM_ERROR("%s CALL outside the program", PRVM_NAME);
+					goto cleanup;
+				}
+
+				newf = &prog->functions[OPA->function];
+				newf->profile++;
+
+				prog->statement = (st - prog->code) + 1;
+
+				if (newf->entry < 0)
+				{
+					/* negative statements are built in functions */
+					int builtinnumber = -newf->entry;
+					if (builtinnumber < prog->builtins_count && prog->builtins[builtinnumber])
+					{
+						prog->builtins[builtinnumber](prog);
+					}
+					else
+						PRVM_ERROR("No such builtin #%i in %s; most likely cause: outdated engine build. Try updating!", builtinnumber, PRVM_NAME);
+				}
+				else
+					st = prog->code + PROG_ENTERFUNCTION(newf);
+				break;
+
+			case INSTR_DONE:
+			case INSTR_RETURN:
+			    /* add instruction count to function profile count */
+			    GLOBAL(OFS_RETURN)->ivector[0] = OPA->ivector[0];
+			    GLOBAL(OFS_RETURN)->ivector[1] = OPA->ivector[1];
+			    GLOBAL(OFS_RETURN)->ivector[2] = OPA->ivector[2];
+
+                st = prog->code + PROG_LEAVEFUNCTION();
+                if (!prog->stack_count)
+                    goto cleanup;
+
+                break;
+
+			case INSTR_STATE:
+				break;
+
+/* LordHavoc: to be enabled when Progs version 7 (or whatever it will be numbered) is finalized */
+/*
+			case INSTR_ADD_I:
+				OPC->_int = OPA->_int + OPB->_int;
+				break;
+			case INSTR_ADD_IF:
+				OPC->_int = OPA->_int + (int) OPB->_float;
+				break;
+			case INSTR_ADD_FI:
+				OPC->_float = OPA->_float + (float) OPB->_int;
+				break;
+			case INSTR_SUB_I:
+				OPC->_int = OPA->_int - OPB->_int;
+				break;
+			case INSTR_SUB_IF:
+				OPC->_int = OPA->_int - (int) OPB->_float;
+				break;
+			case INSTR_SUB_FI:
+				OPC->_float = OPA->_float - (float) OPB->_int;
+				break;
+			case INSTR_MUL_I:
+				OPC->_int = OPA->_int * OPB->_int;
+				break;
+			case INSTR_MUL_IF:
+				OPC->_int = OPA->_int * (int) OPB->_float;
+				break;
+			case INSTR_MUL_FI:
+				OPC->_float = OPA->_float * (float) OPB->_int;
+				break;
+			case INSTR_MUL_VI:
+				OPC->vector[0] = (float) OPB->_int * OPA->vector[0];
+				OPC->vector[1] = (float) OPB->_int * OPA->vector[1];
+				OPC->vector[2] = (float) OPB->_int * OPA->vector[2];
+				break;
+			case INSTR_DIV_VF:
+				{
+					float temp = 1.0f / OPB->_float;
+					OPC->vector[0] = temp * OPA->vector[0];
+					OPC->vector[1] = temp * OPA->vector[1];
+					OPC->vector[2] = temp * OPA->vector[2];
+				}
+				break;
+			case INSTR_DIV_I:
+				OPC->_int = OPA->_int / OPB->_int;
+				break;
+			case INSTR_DIV_IF:
+				OPC->_int = OPA->_int / (int) OPB->_float;
+				break;
+			case INSTR_DIV_FI:
+				OPC->_float = OPA->_float / (float) OPB->_int;
+				break;
+			case INSTR_CONV_IF:
+				OPC->_float = OPA->_int;
+				break;
+			case INSTR_CONV_FI:
+				OPC->_int = OPA->_float;
+				break;
+			case INSTR_BITAND_I:
+				OPC->_int = OPA->_int & OPB->_int;
+				break;
+			case INSTR_BITOR_I:
+				OPC->_int = OPA->_int | OPB->_int;
+				break;
+			case INSTR_BITAND_IF:
+				OPC->_int = OPA->_int & (int)OPB->_float;
+				break;
+			case INSTR_BITOR_IF:
+				OPC->_int = OPA->_int | (int)OPB->_float;
+				break;
+			case INSTR_BITAND_FI:
+				OPC->_float = (int)OPA->_float & OPB->_int;
+				break;
+			case INSTR_BITOR_FI:
+				OPC->_float = (int)OPA->_float | OPB->_int;
+				break;
+			case INSTR_GE_I:
+				OPC->_float = OPA->_int >= OPB->_int;
+				break;
+			case INSTR_LE_I:
+				OPC->_float = OPA->_int <= OPB->_int;
+				break;
+			case INSTR_GT_I:
+				OPC->_float = OPA->_int > OPB->_int;
+				break;
+			case INSTR_LT_I:
+				OPC->_float = OPA->_int < OPB->_int;
+				break;
+			case INSTR_AND_I:
+				OPC->_float = OPA->_int && OPB->_int;
+				break;
+			case INSTR_OR_I:
+				OPC->_float = OPA->_int || OPB->_int;
+				break;
+			case INSTR_GE_IF:
+				OPC->_float = (float)OPA->_int >= OPB->_float;
+				break;
+			case INSTR_LE_IF:
+				OPC->_float = (float)OPA->_int <= OPB->_float;
+				break;
+			case INSTR_GT_IF:
+				OPC->_float = (float)OPA->_int > OPB->_float;
+				break;
+			case INSTR_LT_IF:
+				OPC->_float = (float)OPA->_int < OPB->_float;
+				break;
+			case INSTR_AND_IF:
+				OPC->_float = (float)OPA->_int && OPB->_float;
+				break;
+			case INSTR_OR_IF:
+				OPC->_float = (float)OPA->_int || OPB->_float;
+				break;
+			case INSTR_GE_FI:
+				OPC->_float = OPA->_float >= (float)OPB->_int;
+				break;
+			case INSTR_LE_FI:
+				OPC->_float = OPA->_float <= (float)OPB->_int;
+				break;
+			case INSTR_GT_FI:
+				OPC->_float = OPA->_float > (float)OPB->_int;
+				break;
+			case INSTR_LT_FI:
+				OPC->_float = OPA->_float < (float)OPB->_int;
+				break;
+			case INSTR_AND_FI:
+				OPC->_float = OPA->_float && (float)OPB->_int;
+				break;
+			case INSTR_OR_FI:
+				OPC->_float = OPA->_float || (float)OPB->_int;
+				break;
+			case INSTR_NOT_I:
+				OPC->_float = !OPA->_int;
+				break;
+			case INSTR_EQ_I:
+				OPC->_float = OPA->_int == OPB->_int;
+				break;
+			case INSTR_EQ_IF:
+				OPC->_float = (float)OPA->_int == OPB->_float;
+				break;
+			case INSTR_EQ_FI:
+				OPC->_float = OPA->_float == (float)OPB->_int;
+				break;
+			case INSTR_NE_I:
+				OPC->_float = OPA->_int != OPB->_int;
+				break;
+			case INSTR_NE_IF:
+				OPC->_float = (float)OPA->_int != OPB->_float;
+				break;
+			case INSTR_NE_FI:
+				OPC->_float = OPA->_float != (float)OPB->_int;
+				break;
+			case INSTR_STORE_I:
+				OPB->_int = OPA->_int;
+				break;
+			case INSTR_STOREP_I:
+#if PRBOUNDSCHECK
+				if (OPB->_int < 0 || OPB->_int + 4 > pr_edictareasize)
+				{
+					PRVM_ERROR ("%s Progs attempted to write to an out of bounds edict", PRVM_NAME);
+					goto cleanup;
+				}
+#endif
+				ptr = (prvm_eval_t *)(prog->edictsfields + OPB->_int);
+				ptr->_int = OPA->_int;
+				break;
+			case INSTR_LOAD_I:
+#if PRBOUNDSCHECK
+				if (OPA->edict < 0 || OPA->edict >= prog->max_edicts)
+				{
+					PRVM_ERROR ("%s Progs attempted to read an out of bounds edict number", PRVM_NAME);
+					goto cleanup;
+				}
+				if (OPB->_int < 0 || OPB->_int >= progs->entityfields)
+				{
+					PRVM_ERROR ("%s Progs attempted to read an invalid field in an edict", PRVM_NAME);
+					goto cleanup;
+				}
+#endif
+				ed = PRVM_PROG_TO_EDICT(OPA->edict);
+				OPC->_int = ((prvm_eval_t *)((int *)ed->v + OPB->_int))->_int;
+				break;
+			}
+			*/
+
+			default:
+			    PRVM_ERROR("Illegal instruction in %s\n", PRVM_NAME);
+			    goto cleanup;
+			}
+		}
+
+#undef QCVM_PROFILE
+#undef QCVM_TRACE
-- 
2.39.2