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Line 26... |
#include "sprs.h"
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#include "sprs.h"
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#include "abstract.h"
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#include "abstract.h"
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#include "sim-config.h"
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#include "sim-config.h"
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extern int cont_run; /* defined in toplevel.c */
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extern int cont_run; /* defined in toplevel.c */
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extern int tt_stopped; /* defined in tick.c */
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extern int flag;
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extern int flag;
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sprword sprs[MAX_SPRS];
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sprword sprs[MAX_SPRS];
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int audio_cnt = 0;
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int audio_cnt = 0;
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| Line 38... |
Line 37... |
static FILE *fo = 0;
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static FILE *fo = 0;
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/* Set a specific SPR with a value. */
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/* Set a specific SPR with a value. */
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inline void
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inline void
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mtspr(const int regno, const sprword value)
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mtspr(const int regno, const sprword value)
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{
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{
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int ofs = regno % MAX_SPRS_PER_GRP;
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regno %= MAX_SPRS;
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extern unsigned long pc_phy;
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sprs[regno] = value;
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extern unsigned long reg[32];
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/* MM: Register hooks. */
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/* MM: Register hooks. */
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switch (regno) {
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switch (regno) {
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case 0xFFFD:
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fo = fopen ("audiosim.pcm", "wb+");
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if (!fo) printf("Cannot open audiosim.pcm\n");
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printf("Audio opened.\n");
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return;
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case 0xFFFE:
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if (!fo) printf("audiosim.pcm not opened\n");
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fputc (value & 0xFF, fo);
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if ((audio_cnt % 1024) == 0)
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printf("%i\n", audio_cnt);
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audio_cnt++;
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return;
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case 0xFFFF:
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fclose(fo);
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printf("Audio closed.\n");
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cont_run = 0;
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return;
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case SPR_TTCR:
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case SPR_TTCR:
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tt_stopped = 0;
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spr_write_ttcr (value);
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break;
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case SPR_TTMR:
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spr_write_ttmr (value);
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break;
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break;
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case SPR_SR:
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case SPR_SR:
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if(value & SPR_SR_F)
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/* Set internal flag also */
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flag = 1;
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if(value & SPR_SR_F) flag = 1;
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else
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else flag = 0;
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flag = 0;
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break;
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break;
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case SPR_NPC:
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case SPR_NPC:
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{
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{
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extern unsigned long pc;
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extern unsigned long pc;
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extern unsigned long pcnext;
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extern unsigned long pcnext;
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| Line 92... |
Line 75... |
/* Clear any pending delay slot jumps also */
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/* Clear any pending delay slot jumps also */
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delay_insn = 0;
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delay_insn = 0;
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pcnext = value + 4;
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pcnext = value + 4;
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}
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}
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break;
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break;
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case 0xFFFD:
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fo = fopen ("audiosim.pcm", "wb+");
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if (!fo) printf("Cannot open audiosim.pcm\n");
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printf("Audio opened.\n");
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break;
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case 0xFFFE:
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if (!fo) printf("audiosim.pcm not opened\n");
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fputc (value & 0xFF, fo);
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if ((audio_cnt % 1024) == 0)
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printf("%i\n", audio_cnt);
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audio_cnt++;
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break;
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case 0xFFFF:
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fclose(fo);
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printf("Audio closed.\n");
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cont_run = 0;
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break;
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default:
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default:
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/* Links to GPRS */
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/* Links to GPRS */
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if(regno >= 0x0400 && regno < 0x0420)
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if(regno >= 0x0400 && regno < 0x0420) {
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extern unsigned long reg[32];
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reg[regno - 0x0400] = value;
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reg[regno - 0x0400] = value;
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break;
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}
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}
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break;
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if (regno < MAX_SPRS)
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sprs[regno] = value;
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else if (config.sim.verbose)
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printf("WARNING: write out of SPR range %08X\n", regno);
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}
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#if 0
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/* Get a specific SPR. */
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inline sprword
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mfspr_(const int regno)
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{
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extern unsigned long reg[32];
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extern unsigned long pc;
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extern unsigned long pcprev;
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switch (regno) {
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case SPR_SR:
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/* Exceptions are always enabled */
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return sprs[regno] | SPR_SR_EXR;
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case SPR_NPC:
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return pc;
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case SPR_PPC:
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return pcprev;
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default:
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/* Links to GPRS */
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if(regno >= 0x0400 && regno < 0x0420)
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return reg[regno - 0x0400];
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else if (regno < MAX_SPRS)
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return sprs[regno];
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}
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}
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if (config.sim.verbose)
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printf ("WARNING: read out of SPR range %08X\n", regno);
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return 0;
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}
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}
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#endif
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/* Show status of important SPRs. */
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/* Show status of important SPRs. */
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void sprs_status()
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void sprs_status()
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{
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{
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printf("VR : 0x%.8x UPR : 0x%.8x\n", mfspr(SPR_VR), mfspr(SPR_UPR));
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printf("VR : 0x%.8x UPR : 0x%.8x\n", mfspr(SPR_VR), mfspr(SPR_UPR));
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