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/* Copyright (C) 1998, Cygnus Solutions
*/
#include "sim-main.h"
#include "sim-endian.h"
#include "sky-device.h"
#include "sky-vu1.h"
#include "sky-libvpe.h"
#include "sky-vu.h"
#include "sky-bits.h"
#include <assert.h>
VectorUnitState vu1_state;
#define sim_warning printf
static char* vu1_umem_buffer = 0;
static char* vu1_mem_buffer = 0;
void init_vu1(void);
void init_vu(VectorUnitState *state, char* umem_buffer, char* mem_buffer);
#if 0
static void dump_mem() {
int i;
typedef int T[2048][4];
T *mem = (T*)&vu1_mem_buffer;
for (i = 0; i < 200; i++) {
printf("%d: %x %x %x %x\n", i, (*mem)[i][0], (*mem)[i][1], (*mem)[i][2], (*mem)[i][3]);
}
}
#endif
void
vu1_issue(void)
{
if (vu1_state.runState == VU_RUN)
vpecallms_cycle(&vu1_state);
}
static int
vu1_io_read_register_window(device *me,
void *dest,
int space,
address_word addr,
unsigned nr_bytes,
sim_cpu *processor,
sim_cia cia)
{
/* Slow and crappy hack ... */
int i;
char source_buffer[VU1_REGISTER_WINDOW_SIZE];
char* src;
assert(nr_bytes == 1 || nr_bytes == 2 || nr_bytes == 4 || nr_bytes == 8 || nr_bytes == 16);
memcpy(source_buffer, &vu1_state.regs.VF[0][0], 0x200); /* copy VF registers */
for (i = 0; i<16; i++ ) {
*(short*)&source_buffer[0x200 + i*16] = vu1_state.regs.VI[i];
}
*(u_long*)&source_buffer[VU1_MST - VU1_REGISTER_WINDOW_START] = vu1_state.regs.MST;
*(u_long*)&source_buffer[VU1_MMC - VU1_REGISTER_WINDOW_START] = vu1_state.regs.MMC;
*(u_long*)&source_buffer[VU1_MCP - VU1_REGISTER_WINDOW_START] = vu1_state.regs.MCP;
*(u_long*)&source_buffer[VU1_MR - VU1_REGISTER_WINDOW_START] = vu1_state.regs.MR;
*(u_long*)&source_buffer[VU1_MI - VU1_REGISTER_WINDOW_START] = vu1_state.regs.MI;
*(u_long*)&source_buffer[VU1_MQ - VU1_REGISTER_WINDOW_START] = vu1_state.regs.MQ;
*(u_long*)&source_buffer[VU1_MP - VU1_REGISTER_WINDOW_START] = vu1_state.regs.MP;
*(u_long*)&source_buffer[VU1_MTPC - VU1_REGISTER_WINDOW_START] = vu1_state.regs.MTPC;
{
u_long stat;
stat = 0;
if (vu1_state.runState == VU_RUN || vu1_state.runState == VU_BREAK)
SET_BIT(stat, VPU_STAT_VBS1_BIT);
*(u_long*)&source_buffer[VPE1_STAT - VU1_REGISTER_WINDOW_START] = H2T_4(stat);
}
*(u_long*)&source_buffer[VU1_CIA - VU1_REGISTER_WINDOW_START] = H2T_4(vu1_state.junk._vpepc);
/* XXX: other H2T_N's needed around here. */
#if 0
printf("%s: Read: %x, %d, dest: %x, space: %d, %x!\n", me->name, (int)addr, nr_bytes, (int)dest, space, *(int*)&(vu1_state.regs.VPE_STAT));
printf(" vu1_state.regs.VPE_STAT = %x\n", *(int*)&(vu1_state.regs.VPE_STAT));
#endif
if (addr + nr_bytes > VU1_REGISTER_WINDOW_END) {
fprintf(stderr, "Error: Read past end of vu1 register window!!!\n");
exit(1);
}
src = &source_buffer[0] + (addr - VU1_REGISTER_WINDOW_START);
memcpy(dest, src, nr_bytes);
return nr_bytes;
}
static int
vu1_io_write_register_window(device *me,
const void *source,
int space,
address_word addr,
unsigned nr_bytes,
sim_cpu *processor,
sim_cia cia)
{
char *dest;
assert(nr_bytes == 4);
if (addr == VPE1_STAT) {
/* Do nothing, read only register. */
sim_warning("vu1: Write to read/only register at address %lx.\n", (u_long)addr);
return nr_bytes;
} else if (addr == VU1_MST) {
/* Magic switch to set _TOP register */
vu1_state.junk._TOP = T2H_4(*(int*)source);
return nr_bytes;
} else if (addr == VU1_CIA) {
vu1_state.junk.pc = vu1_state.junk._vpepc = T2H_4(*(int*)source);
vu1_state.runState = VU_RUN;
vu1_state.junk.eflag = 0;
vu1_state.junk.peflag = 0;
return nr_bytes;
}
/* Everything else does nothing... */
sim_warning("vu1: Write to unimplemented control register at address %lx.\n", (u_long)addr);
return nr_bytes;
/*printf("%s: Write: %x, %d, source: %x, space: %d!\n", me->name, (int)addr, nr_bytes, (int)source, space);*/
if (addr + nr_bytes > VU1_REGISTER_WINDOW_END) {
fprintf(stderr, "Error: Read past end of vu1 register window!!!\n");
exit(1);
}
dest = ((char*) (&vu1_state.regs)) + (addr - VU1_REGISTER_WINDOW_START);
memcpy(dest, source, nr_bytes);
return nr_bytes;
}
device vu1_device =
{
"vu1",
&vu1_io_read_register_window,
&vu1_io_write_register_window
};
void
vu1_init(SIM_DESC sd)
{
sim_core_attach (sd,
NULL,
0 /*level*/,
access_read_write,
0 /*space ???*/,
VU1_REGISTER_WINDOW_START,
VU1_REGISTER_WINDOW_SIZE /*nr_bytes*/,
0 /*modulo*/,
&vu1_device,
NULL /*buffer*/);
vu1_umem_buffer = zalloc(VU1_MEM0_SIZE);
sim_core_attach (sd,
NULL,
0 /*level*/,
access_read_write,
0 /*space ???*/,
VU1_MEM0_WINDOW_START,
VU1_MEM0_SIZE /*nr_bytes*/,
0 /*modulo*/,
0 /*device*/,
vu1_umem_buffer /*buffer*/);
vu1_mem_buffer = zalloc(VU1_MEM1_SIZE);
sim_core_attach (sd,
NULL,
0 /*level*/,
access_read_write,
0 /*space ???*/,
VU1_MEM1_WINDOW_START,
VU1_MEM1_SIZE /*nr_bytes*/,
0 /*modulo*/,
0 /*device*/,
vu1_mem_buffer /*buffer*/);
init_vu1();
/*initvpe();*/
vpecallms_init(&vu1_state);
}
/****************************************************************************/
/* */
/* Sony Computer Entertainment CONFIDENTIAL */
/* (C) 1997 Sony Computer Entertainment Inc. All Rights Reserved */
/* */
/* VPE1 simulator */
/* */
/****************************************************************************/
#include <stdio.h>
#include <sys/types.h>
#include <strings.h>
#include "sky-libvpe.h"
char ifilename[64] = "vu.bin";
char ofilename[64] = "";
char pfilename[64] = "";
static void abend2(char *fmt, char* p) {
fprintf(stderr, fmt, p);
exit(1);
}
void getoption(VectorUnitState* state);
void init_vu1(void) {
init_vu(&vu1_state, &vu1_umem_buffer[0], &vu1_mem_buffer[0]);
}
void init_vu(VectorUnitState *state, char* umem_buffer, char* mem_buffer)
{
FILE *fp;
int i, j;
u_long data[4];
/* set up memory buffers */
state->uMEM = (uMEM_Entry_Type *) umem_buffer;
state->MEM = (MEM_Entry_Type*) mem_buffer;
/* set up run state */
state->runState = VU_READY;
/* read option */
getoption(state);
/* read instruction file (mandatory) */
if (*ifilename) {
if((fp = fopen(ifilename, "r")) != NULL) {
for (i = 0; fread(&data[0], 4, 1, fp) != 0; i++) {
fread(&data[1], 4, 1, fp);
LoadMMem(state, i, data, 1);
}
fclose(fp);
}
}
/* PKE dirven simvpe */
if (*pfilename) {
/* initpke(pfilename); */
initvpe(&vu1_state);
/* while (simpke() != -1)
simvpe(); */
}
/* conventional simvpe */
else {
initvpe(&vu1_state);
/*simvpe();*/
}
/* write result memory image (optional) */
if (*ofilename) {
if((fp = fopen(ofilename, "w")) == NULL)
abend2("%s: can not open\n", ofilename);
for(i = 0; i < 2048; i++){
StoreVUMem(state, i, data, 1);
for(j = 0; j < 4; j++)
fwrite(&data[j], 4, 1, fp);
}
fclose(fp);
}
}
#if 0
static void Usage(void)
{
fprintf(stderr, "Usage: simvpe [options]\n");
fprintf(stderr, "\t\t-i instruction-file\n");
fprintf(stderr, "\t\t-o output-memory-file\n");
fprintf(stderr, "\t\t-t PKE-file (text type)\n");
fprintf(stderr, "\t\t-s start-address [default = 0]\n");
fprintf(stderr, "\t\t-d [interactive mode enable: default desable]\n");
fprintf(stderr, "\t\t-v [statistics mode enable: default desable]\n");
fprintf(stderr, "\t\t-p [debug print mode enable: default desable]\n");
}
#endif
void getoption(VectorUnitState* state)
{
#if 0
int startline = 0;
int count = 1;
#endif
state->junk._is_dbg = 1;
state->junk._vpepc = 0;
state->junk._is_verb = 0;
state->junk._is_dump = 0;
state->junk._pgpuif = 4; /* MEMGPUIF */
state->junk._ITOP = 20;
state->junk._TOP = 10;
#if 0
while(argc - count){
if(argv[count][0] == '-'){
switch(argv[count][1]){
case 'i':
strcpy(ifilename, argv[count+1]);
count += 2;
break;
case 'o':
strcpy(ofilename, argv[count+1]);
count += 2;
break;
case 't':
strcpy(pfilename, argv[count+1]);
count += 2;
break;
case 's':
sscanf(argv[count+1], "%d", &startline);
state->junk._vpepc = startline;
count += 2;
break;
case 'd':
state->junk._is_dbg = 1;
count += 1;
break;
case 'v':
state->junk._is_verb = 1;
count += 1;
break;
case 'p':
state->junk._is_dump = 1;
count += 1;
break;
case 'h':
case '?':
Usage();
exit(1);
break;
default:
Usage();
exit(1);
}
}else{
Usage();
exit(1);
}
}
#endif
}
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