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https://github.com/nunuhara/xsystem4.git
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Nunuhara Cabbage
e5ef9f4d2d
Implement CALLMETHOD, SH_STRUCTREF and PUSHSTRUCTPAGE instructions. Constructors are a bit tricky since SH_LOCALCREATE has to implicitly call an arbitrary number of functions before it returns (just changing the instruction pointer only allows for calling a single function). To get around this, there is now a vm_call() function which is used to call a function synchronously, before returning from the current instruction. Methods are implemented as functions, except that they get a struct page as local variable -1. Destructors are still not implemented.
102 lines
2.0 KiB
C
102 lines
2.0 KiB
C
/* Copyright (C) 2019 Nunuhara Cabbage <nunuhara@haniwa.technology>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, see <http://gnu.org/licenses/>.
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*/
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#include <stdarg.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include "system4.h"
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#include "ain.h"
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mem_alloc void *_xmalloc(size_t size, const char *func)
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{
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void *ptr = malloc(size);
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if (!ptr) {
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sys_error("*ERROR*(%s): Out of memory\n", func);
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}
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return ptr;
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}
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mem_alloc void *_xrealloc(void *ptr, size_t size, const char *func)
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{
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ptr = realloc(ptr, size);
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if (!ptr) {
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sys_error("*ERROR*(%s): Out of memory\n", func);
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}
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return ptr;
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}
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mem_alloc char *_xstrdup(const char *in, const char *func)
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{
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char *out = strdup(in);
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if (!out) {
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sys_error("*ERROR*(%s): Out of memory\n", func);
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}
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return out;
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}
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noreturn void sys_error(char *fmt, ...)
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{
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va_list ap;
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va_start(ap, fmt);
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vfprintf(stderr, fmt, ap);
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va_end(ap);
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sys_exit(1);
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}
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void sys_warning(char *fmt, ...)
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{
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va_list ap;
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va_start(ap, fmt);
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vfprintf(stderr, fmt, ap);
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va_end(ap);
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}
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void sys_message(char *fmt, ...)
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{
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va_list ap;
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va_start(ap, fmt);
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vprintf(fmt, ap);
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va_end(ap);
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fflush(stdout);
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}
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noreturn void sys_exit(int code)
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{
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// TODO: cleanup
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exit(code);
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}
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int main(int argc, char *argv[])
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{
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int err = AIN_SUCCESS;
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struct ain *ain;
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if (argc != 2) {
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printf("wrong number of arguments\n");
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return 1;
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}
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if (!(ain = ain_open(argv[1], &err))) {
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ERROR("%s", ain_strerror(err));
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}
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vm_execute_ain(ain);
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sys_exit(0);
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}
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