#include <stdlib.h>#include <errno.h>#include <assert.h> #include "vx32.h"#include "vx32impl.h" static vxproc *procs[VXPROCSMAX]; vxproc *vxproc_alloc(void){	// Find an available process number	int pno;	for (pno = 0; ; pno++) {		if (pno == VXPROCSMAX) {			errno = EAGAIN;			return NULL;		}		if (procs[pno] == 0)			break;	} 	// Allocate the vxproc structure	vxproc *pr = calloc(1, sizeof(vxproc));	if (pr == NULL) {		errno = ENOMEM;		return NULL;	}	pr->vxpno = pno; 	// Create the process's emulation state	if (vxemu_init(pr) < 0)		return NULL; 	procs[pno] = pr;	return pr;} void vxproc_free(vxproc *proc){	assert(procs[proc->vxpno] == proc);	procs[proc->vxpno] = NULL;		// Free the emulation state	if (proc->emu != NULL)		vxemu_free(proc->emu);		// Free the process memory.	if (proc->mem != NULL)		vxmem_free(proc->mem); 	free(proc);} void vxproc_flush(vxproc *proc){	vxemu_flush(proc->emu);}