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Line 23... |
#include <errno.h>
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#include <errno.h>
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#include "arch.h"
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#include "arch.h"
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#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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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 tt_stopped; /* defined in tick.c */
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extern int flag;
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extern int flag;
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Line 40... |
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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int ofs = regno % MAX_SPRS_PER_GRP;
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extern unsigned long pc_phy;
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extern unsigned long pc_phy;
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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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case 0xFFFD:
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fo = fopen ("audiosim.pcm", "wb+");
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fo = fopen ("audiosim.pcm", "wb+");
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Line 107... |
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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extern int delay_insn;
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extern int delay_insn;
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extern unsigned long pcdelay;
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extern unsigned long pcdelay;
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clear_pending_exception ();
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/* The debugger has redirected us to a new address */
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/* The debugger has redirected us to a new address */
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/* This is usually done to reissue an instruction
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/* This is usually done to reissue an instruction
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which just caused a breakpoint exception. */
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which just caused a breakpoint exception. */
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pcnext = value;
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pc = value;
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if(!value)
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if(!value && config.sim.verbose)
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printf("WARNING: PC just set to 0!\n");
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printf("WARNING: PC just set to 0!\n");
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/* 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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pcdelay = 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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default:
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/* Links to GPRS */
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if(regno >= 0x0400 && regno < 0x0420)
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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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if (regno < MAX_SPRS)
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if (regno < MAX_SPRS)
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sprs[regno] = value;
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sprs[regno] = value;
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else {
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else if (config.sim.verbose)
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printf("\nABORT: write out of SPR range %08X\n", regno);
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printf("WARNING: write out of SPR range %08X\n", regno);
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cont_run = 0;
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}
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}
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}
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/* Get a specific SPR. */
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/* Get a specific SPR. */
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inline sprword
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inline sprword
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mfspr_(const int regno)
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mfspr_(const int regno)
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{
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{
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/* CZ 21/06/01 ... the debugger wants to do this! */
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extern unsigned long reg[32];
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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 prevpc;
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extern unsigned long pcprev;
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if (regno == SPR_NPC)
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return pc;
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else if (regno == SPR_PPC)
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return prevpc;
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}
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/* Exceptions are allways enabled */
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switch (regno) {
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if (regno == SPR_SR)
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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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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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return sprs[regno] | SPR_SR_EXR;
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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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}
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if (regno < MAX_SPRS)
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if (regno < MAX_SPRS)
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return sprs[regno];
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return sprs[regno];
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else {
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printf("\nABORT: read out of SPR range %08X\n", regno);
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if (config.sim.verbose)
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cont_run = 0;
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printf ("WARNING: read out of SPR range %08X\n", regno);
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}
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return 0;
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return 0;
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}
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}
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/* Set a specific bit from SPR. LSB in a word is numbered zero. */
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/* Set a specific bit from SPR. LSB in a word is numbered zero. */
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inline void
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inline void
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