--- /dev/null
+/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
+ * Mupen64plus - interpreter_tlb.def *
+ * Mupen64Plus homepage: http://code.google.com/p/mupen64plus/ *
+ * Copyright (C) 2002 Hacktarux *
+ * *
+ * This program is free software; you can redistribute it and/or modify *
+ * it under the terms of the GNU General Public License as published by *
+ * the Free Software Foundation; either version 2 of the License, or *
+ * (at your option) any later version. *
+ * *
+ * This program is distributed in the hope that it will be useful, *
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of *
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
+ * GNU General Public License for more details. *
+ * *
+ * You should have received a copy of the GNU General Public License *
+ * along with this program; if not, write to the *
+ * Free Software Foundation, Inc., *
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. *
+ * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
+
+#include <zlib.h> // For adler32()
+
+DECLARE_INSTRUCTION(TLBR)
+{
+ int index;
+ index = Index & 0x1F;
+ PageMask = tlb_e[index].mask << 13;
+ EntryHi = ((tlb_e[index].vpn2 << 13) | tlb_e[index].asid);
+ EntryLo0 = (tlb_e[index].pfn_even << 6) | (tlb_e[index].c_even << 3)
+ | (tlb_e[index].d_even << 2) | (tlb_e[index].v_even << 1)
+ | tlb_e[index].g;
+ EntryLo1 = (tlb_e[index].pfn_odd << 6) | (tlb_e[index].c_odd << 3)
+ | (tlb_e[index].d_odd << 2) | (tlb_e[index].v_odd << 1)
+ | tlb_e[index].g;
+ ADD_TO_PC(1);
+}
+
+static void TLBWrite(unsigned int idx)
+{
+ if (r4300emu != CORE_PURE_INTERPRETER)
+ {
+ unsigned int i;
+ if (tlb_e[idx].v_even)
+ {
+ for (i=tlb_e[idx].start_even>>12; i<=tlb_e[idx].end_even>>12; i++)
+ {
+ if(!invalid_code[i] &&(invalid_code[tlb_LUT_r[i]>>12] ||
+ invalid_code[(tlb_LUT_r[i]>>12)+0x20000]))
+ invalid_code[i] = 1;
+ if (!invalid_code[i])
+ {
+ /*int j;
+ md5_state_t state;
+ md5_byte_t digest[16];
+ md5_init(&state);
+ md5_append(&state,
+ (const md5_byte_t*)&rdram[(tlb_LUT_r[i]&0x7FF000)/4],
+ 0x1000);
+ md5_finish(&state, digest);
+ for (j=0; j<16; j++) blocks[i]->md5[j] = digest[j];*/
+
+ blocks[i]->adler32 = adler32(0, (const unsigned char *)&rdram[(tlb_LUT_r[i]&0x7FF000)/4], 0x1000);
+
+ invalid_code[i] = 1;
+ }
+ else if (blocks[i])
+ {
+ /*int j;
+ for (j=0; j<16; j++) blocks[i]->md5[j] = 0;*/
+ blocks[i]->adler32 = 0;
+ }
+ }
+ }
+ if (tlb_e[idx].v_odd)
+ {
+ for (i=tlb_e[idx].start_odd>>12; i<=tlb_e[idx].end_odd>>12; i++)
+ {
+ if(!invalid_code[i] &&(invalid_code[tlb_LUT_r[i]>>12] ||
+ invalid_code[(tlb_LUT_r[i]>>12)+0x20000]))
+ invalid_code[i] = 1;
+ if (!invalid_code[i])
+ {
+ /*int j;
+ md5_state_t state;
+ md5_byte_t digest[16];
+ md5_init(&state);
+ md5_append(&state,
+ (const md5_byte_t*)&rdram[(tlb_LUT_r[i]&0x7FF000)/4],
+ 0x1000);
+ md5_finish(&state, digest);
+ for (j=0; j<16; j++) blocks[i]->md5[j] = digest[j];*/
+
+ blocks[i]->adler32 = adler32(0, (const unsigned char *)&rdram[(tlb_LUT_r[i]&0x7FF000)/4], 0x1000);
+
+ invalid_code[i] = 1;
+ }
+ else if (blocks[i])
+ {
+ /*int j;
+ for (j=0; j<16; j++) blocks[i]->md5[j] = 0;*/
+ blocks[i]->adler32 = 0;
+ }
+ }
+ }
+ }
+
+ tlb_unmap(&tlb_e[idx]);
+
+ tlb_e[idx].g = (EntryLo0 & EntryLo1 & 1);
+ tlb_e[idx].pfn_even = (EntryLo0 & 0x3FFFFFC0) >> 6;
+ tlb_e[idx].pfn_odd = (EntryLo1 & 0x3FFFFFC0) >> 6;
+ tlb_e[idx].c_even = (EntryLo0 & 0x38) >> 3;
+ tlb_e[idx].c_odd = (EntryLo1 & 0x38) >> 3;
+ tlb_e[idx].d_even = (EntryLo0 & 0x4) >> 2;
+ tlb_e[idx].d_odd = (EntryLo1 & 0x4) >> 2;
+ tlb_e[idx].v_even = (EntryLo0 & 0x2) >> 1;
+ tlb_e[idx].v_odd = (EntryLo1 & 0x2) >> 1;
+ tlb_e[idx].asid = (EntryHi & 0xFF);
+ tlb_e[idx].vpn2 = (EntryHi & 0xFFFFE000) >> 13;
+ //tlb_e[idx].r = (EntryHi & 0xC000000000000000LL) >> 62;
+ tlb_e[idx].mask = (PageMask & 0x1FFE000) >> 13;
+
+ tlb_e[idx].start_even = tlb_e[idx].vpn2 << 13;
+ tlb_e[idx].end_even = tlb_e[idx].start_even+
+ (tlb_e[idx].mask << 12) + 0xFFF;
+ tlb_e[idx].phys_even = tlb_e[idx].pfn_even << 12;
+
+
+ tlb_e[idx].start_odd = tlb_e[idx].end_even+1;
+ tlb_e[idx].end_odd = tlb_e[idx].start_odd+
+ (tlb_e[idx].mask << 12) + 0xFFF;
+ tlb_e[idx].phys_odd = tlb_e[idx].pfn_odd << 12;
+
+ tlb_map(&tlb_e[idx]);
+
+ if (r4300emu != CORE_PURE_INTERPRETER)
+ {
+ unsigned int i;
+ if (tlb_e[idx].v_even)
+ {
+ for (i=tlb_e[idx].start_even>>12; i<=tlb_e[idx].end_even>>12; i++)
+ {
+ /*if (blocks[i] && (blocks[i]->md5[0] || blocks[i]->md5[1] ||
+ blocks[i]->md5[2] || blocks[i]->md5[3]))
+ {
+ int j;
+ int equal = 1;
+ md5_state_t state;
+ md5_byte_t digest[16];
+ md5_init(&state);
+ md5_append(&state,
+ (const md5_byte_t*)&rdram[(tlb_LUT_r[i]&0x7FF000)/4],
+ 0x1000);
+ md5_finish(&state, digest);
+ for (j=0; j<16; j++)
+ if (digest[j] != blocks[i]->md5[j])
+ equal = 0;
+ if (equal) invalid_code[i] = 0;
+ }*/
+ if(blocks[i] && blocks[i]->adler32)
+ {
+ if(blocks[i]->adler32 == adler32(0,(const unsigned char *)&rdram[(tlb_LUT_r[i]&0x7FF000)/4],0x1000))
+ invalid_code[i] = 0;
+ }
+ }
+ }
+
+ if (tlb_e[idx].v_odd)
+ {
+ for (i=tlb_e[idx].start_odd>>12; i<=tlb_e[idx].end_odd>>12; i++)
+ {
+ /*if (blocks[i] && (blocks[i]->md5[0] || blocks[i]->md5[1] ||
+ blocks[i]->md5[2] || blocks[i]->md5[3]))
+ {
+ int j;
+ int equal = 1;
+ md5_state_t state;
+ md5_byte_t digest[16];
+ md5_init(&state);
+ md5_append(&state,
+ (const md5_byte_t*)&rdram[(tlb_LUT_r[i]&0x7FF000)/4],
+ 0x1000);
+ md5_finish(&state, digest);
+ for (j=0; j<16; j++)
+ if (digest[j] != blocks[i]->md5[j])
+ equal = 0;
+ if (equal) invalid_code[i] = 0;
+ }*/
+ if(blocks[i] && blocks[i]->adler32)
+ {
+ if(blocks[i]->adler32 == adler32(0,(const unsigned char *)&rdram[(tlb_LUT_r[i]&0x7FF000)/4],0x1000))
+ invalid_code[i] = 0;
+ }
+ }
+ }
+ }
+}
+
+DECLARE_INSTRUCTION(TLBWI)
+{
+ TLBWrite(Index&0x3F);
+ ADD_TO_PC(1);
+}
+
+DECLARE_INSTRUCTION(TLBWR)
+{
+ update_count();
+ Random = (Count/2 % (32 - Wired)) + Wired;
+ TLBWrite(Random);
+ ADD_TO_PC(1);
+}
+
+DECLARE_INSTRUCTION(TLBP)
+{
+ int i;
+ Index |= 0x80000000;
+ for (i=0; i<32; i++)
+ {
+ if (((tlb_e[i].vpn2 & (~tlb_e[i].mask)) ==
+ (((EntryHi & 0xFFFFE000) >> 13) & (~tlb_e[i].mask))) &&
+ ((tlb_e[i].g) ||
+ (tlb_e[i].asid == (EntryHi & 0xFF))))
+ {
+ Index = i;
+ break;
+ }
+ }
+ ADD_TO_PC(1);
+}
+
+DECLARE_INSTRUCTION(ERET)
+{
+ update_count();
+ if (Status & 0x4)
+ {
+ DebugMessage(M64MSG_ERROR, "error in ERET");
+ stop=1;
+ }
+ else
+ {
+ Status &= ~0x2;
+ generic_jump_to(EPC);
+ }
+ llbit = 0;
+ check_interupt();
+ last_addr = PCADDR;
+ if (next_interupt <= Count) gen_interupt();
+}
notaz.gp2x.de / mupen64plus-pandora.git / blobdiff