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https://opencores.org/ocsvn/or1k_old/or1k_old/trunk
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Rev 1354 |
Rev 1432 |
Line 37... |
Line 37... |
/* Ugly, but fast */
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/* Ugly, but fast */
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/* Get a specific SPR. */
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/* Get a specific SPR. */
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static inline sprword
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static inline sprword
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mfspr_(const uint16_t regno)
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mfspr_(const uint16_t regno)
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{
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{
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extern uorreg_t reg[32];
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extern oraddr_t pcprev;
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extern oraddr_t pcprev;
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extern sprword sprs[MAX_SPRS];
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switch (regno) {
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switch (regno) {
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case SPR_NPC:
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case SPR_NPC:
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return pc;
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return cpu_state.pc;
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case SPR_PPC:
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case SPR_PPC:
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return pcprev;
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return pcprev;
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case SPR_TTCR:
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case SPR_TTCR:
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return spr_read_ttcr();
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return spr_read_ttcr();
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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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return reg[regno - 0x0400];
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return cpu_state.reg[regno - 0x0400];
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else if (regno < MAX_SPRS)
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else if (regno < MAX_SPRS)
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return sprs[regno];
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return cpu_state.sprs[regno];
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}
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}
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if (config.sim.verbose)
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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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PRINTF ("WARNING: read out of SPR range %08X\n", regno);
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return 0;
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return 0;
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}
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}
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