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updated readme for new version

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hellerve
2015-06-16 10:58:26 +02:00
parent 9b55ee0f54
commit 74e9c43403
7 changed files with 92 additions and 99 deletions
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40
src/vm.c
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@@ -9,13 +9,13 @@
/**
* @brief disassemble
* @param sp -> stack pointer
* @param fp -> function pointer
* @param ip -> instruction pointer
* @param sp -> stack pointer
* @param fp -> function pointer
* @param ip -> instruction pointer
* @param opcode -> current opcode
* @param ins -> instruction struct
* @param code -> opcodes
* @param stack -> stack
* @param ins -> instruction struct
* @param code -> opcodes
* @param stack -> stack
*
* prints current operations and a stack trace.
* Is invoked if DEBUG is defined.
@@ -34,25 +34,15 @@ static inline void disassemble(int sp, int fp, int ip, int opcode, instruction*
printf("\n");
}
/**
* @brief vm_execute
* @param code -> a list of opcodes
* @param ip -> the instruction pointer
* @param datasize -> the maximal standard datasize
* @param length -> the length of the program
*
* the main virtual machine loop. takes opcodes and
* metainformation and executes it.
*/
void vm_execute(int code[], int ip, int datasize, unsigned long length){
int* data = (int *) alloca((size_t)datasize * sizeof(int));
int stack[MAX_SIZE];
register int sp = -1;
register int fp = -1;
int nargs, addr, a, b;
instruction* ins = setup_instructions();
while(ip < length){
int opcode = code[ip];
ip++;
@@ -195,7 +185,7 @@ program vm_compile(char *filename){
size_t linelength = 0;
int entry = 0;
program prog;
if(!file)
die(127, "Could not open file.");
@@ -229,8 +219,8 @@ program vm_compile(char *filename){
}
if(found == FALSE){
fprintf(stderr,
"Line %s called with unknown command: %s\n",
fprintf(stderr,
"Line %s called with unknown command: %s\n",
line, command[0]);
die(127, "Compilation failed.");
}
@@ -238,8 +228,8 @@ program vm_compile(char *filename){
if(ins[i].operands > 0){
int nargs = ins[i].operands;
if(nargs != elemc-1){
fprintf(stderr,
"Line %s called with wrong number of arguments (got %d, expected %d)\n",
fprintf(stderr,
"Line %s called with wrong number of arguments (got %d, expected %d)\n",
line, elemc-1, nargs);
die(127, "Compilation failed.");
}
@@ -249,7 +239,7 @@ program vm_compile(char *filename){
}
}
}
fclose(file);
if(line)
@@ -260,7 +250,7 @@ program vm_compile(char *filename){
code = code_realloc;
code_realloc = NULL;
}
prog.length = codep;
prog.entrypoint = entry;
prog.code = code;