| Line 99... |
Line 99... |
int instructions;
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int instructions;
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/* Load and store stalls */
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/* Load and store stalls */
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int loadcycles, storecycles;
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int loadcycles, storecycles;
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/* Store buffer analysis - stores are accumulated and commited when IO is idle */
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static int sbuf_head = 0, sbuf_tail = 0, sbuf_count = 0;
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static int sbuf_buf[MAX_SBUF_LEN] = {0};
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static int sbuf_prev_cycles = 0;
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/* Num cycles waiting for stores to complete */
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int sbuf_wait_cyc = 0;
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/* Number of total store cycles */
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int sbuf_total_cyc = 0;
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/* Local data needed for execution. */
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/* Local data needed for execution. */
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static struct iqueue_entry *cur;
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static struct iqueue_entry *cur;
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static int next_delay_insn;
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static int next_delay_insn;
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static int breakpoint;
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static int breakpoint;
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static unsigned long *op;
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static unsigned long *op;
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| Line 459... |
Line 470... |
histexec[i] = histexec[i - 1];
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histexec[i] = histexec[i - 1];
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histexec[0] = icomplet[0].insn_addr; /* add last insn */
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histexec[0] = icomplet[0].insn_addr; /* add last insn */
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}
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}
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}
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}
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/* Store buffer analysis - stores are accumulated and commited when IO is idle */
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static inline sbuf_store () {
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int delta = cycles - sbuf_prev_cycles;
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int cyc = mem_cycles;
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sbuf_total_cyc += cyc;
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mem_cycles = 0;
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/* Take stores from buffer, that occured meanwhile */
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while (delta >= sbuf_buf[sbuf_tail] && sbuf_count) {
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delta -= sbuf_buf[sbuf_tail];
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sbuf_tail = (sbuf_tail + 1) % MAX_SBUF_LEN;
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sbuf_count--;
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}
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if (sbuf_count)
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sbuf_buf[sbuf_tail] -= delta;
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/* Store buffer is full, take one out */
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if (sbuf_count >= config.cpu.sbuf_len) {
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sbuf_wait_cyc += sbuf_buf[sbuf_tail];
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mem_cycles += sbuf_buf[sbuf_tail];
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sbuf_tail = (sbuf_tail + 1) % MAX_SBUF_LEN;
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sbuf_count--;
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}
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/* Put newest store in the buffer */
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sbuf_buf[sbuf_head] = cyc;
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sbuf_head = (sbuf_head + 1) % MAX_SBUF_LEN;
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sbuf_count++;
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sbuf_prev_cycles = cycles;
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}
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/* Store buffer analysis - previous stores should commit, before any load */
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static inline sbuf_load () {
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/* Wait for all stores to complete */
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while (sbuf_count > 0) {
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sbuf_wait_cyc += sbuf_buf[sbuf_tail];
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mem_cycles += sbuf_buf[sbuf_tail];
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sbuf_tail = (sbuf_tail + 1) % MAX_SBUF_LEN;
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sbuf_count--;
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}
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}
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/* Execution logger. */
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/* Execution logger. */
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inline void dump_exe_log()
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inline void dump_exe_log()
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{
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{
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unsigned long i = iqueue[0].insn_addr;
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unsigned long i = iqueue[0].insn_addr;
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| Line 623... |
Line 674... |
for (i = 0; i < MAX_GPRS; i++)
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for (i = 0; i < MAX_GPRS; i++)
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set_reg32 (i, 0);
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set_reg32 (i, 0);
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memset(iqueue, 0, sizeof(iqueue));
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memset(iqueue, 0, sizeof(iqueue));
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memset(icomplet, 0, sizeof(icomplet));
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memset(icomplet, 0, sizeof(icomplet));
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sbuf_head = 0;
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sbuf_tail = 0;
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sbuf_count = 0;
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sbuf_prev_cycles = 0;
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/* Cpu configuration */
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/* Cpu configuration */
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mtspr(SPR_UPR, config.cpu.upr);
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mtspr(SPR_UPR, config.cpu.upr);
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setsprbits(SPR_VR, SPR_VR_VER, config.cpu.ver);
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setsprbits(SPR_VR, SPR_VR_VER, config.cpu.ver);
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setsprbits(SPR_VR, SPR_VR_REV, config.cpu.rev);
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setsprbits(SPR_VR, SPR_VR_REV, config.cpu.rev);
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mtspr(SPR_SR, config.cpu.sr);
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mtspr(SPR_SR, config.cpu.sr);
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| Line 678... |
Line 734... |
mstats.byteadd++;
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mstats.byteadd++;
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}
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}
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void l_sw() {
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void l_sw() {
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IFF (config.cpu.dependstats) cur->func_unit = it_store;
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IFF (config.cpu.dependstats) cur->func_unit = it_store;
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set_operand32(0, eval_operand32(1, &breakpoint), &breakpoint);
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set_operand32(0, eval_operand32(1, &breakpoint), &breakpoint);
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if (config.cpu.sbuf_len) sbuf_store (mem_cycles);
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}
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}
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void l_sb() {
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void l_sb() {
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IFF (config.cpu.dependstats) cur->func_unit = it_store;
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IFF (config.cpu.dependstats) cur->func_unit = it_store;
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set_operand8(0, eval_operand32(1, &breakpoint), &breakpoint);
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set_operand8(0, eval_operand32(1, &breakpoint), &breakpoint);
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if (config.cpu.sbuf_len) sbuf_store (mem_cycles);
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}
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}
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void l_sh() {
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void l_sh() {
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IFF (config.cpu.dependstats) cur->func_unit = it_store;
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IFF (config.cpu.dependstats) cur->func_unit = it_store;
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set_operand16(0, eval_operand32(1, &breakpoint), &breakpoint);
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set_operand16(0, eval_operand32(1, &breakpoint), &breakpoint);
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if (config.cpu.sbuf_len) sbuf_store (mem_cycles);
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}
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}
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void l_lwz() {
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void l_lwz() {
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unsigned long val;
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unsigned long val;
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IFF (config.cpu.dependstats) cur->func_unit = it_load;
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IFF (config.cpu.dependstats) cur->func_unit = it_load;
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if (config.cpu.sbuf_len) sbuf_load ();
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val = eval_operand32(1, &breakpoint);
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val = eval_operand32(1, &breakpoint);
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/* If eval operand produced exception don't set anything */
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/* If eval operand produced exception don't set anything */
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if (!pending.valid)
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if (!pending.valid)
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set_operand32(0, val, &breakpoint);
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set_operand32(0, val, &breakpoint);
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}
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}
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void l_lbs() {
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void l_lbs() {
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signed char val;
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signed char val;
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IFF (config.cpu.dependstats) cur->func_unit = it_load;
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IFF (config.cpu.dependstats) cur->func_unit = it_load;
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if (config.cpu.sbuf_len) sbuf_load ();
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val = eval_operand8(1, &breakpoint);
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val = eval_operand8(1, &breakpoint);
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/* If eval opreand produced exception don't set anything */
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/* If eval opreand produced exception don't set anything */
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if (!pending.valid)
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if (!pending.valid)
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set_operand32(0, val, &breakpoint);
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set_operand32(0, val, &breakpoint);
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}
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}
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void l_lbz() {
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void l_lbz() {
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unsigned char val;
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unsigned char val;
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IFF (config.cpu.dependstats) cur->func_unit = it_load;
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IFF (config.cpu.dependstats) cur->func_unit = it_load;
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if (config.cpu.sbuf_len) sbuf_load ();
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val = eval_operand8(1, &breakpoint);
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val = eval_operand8(1, &breakpoint);
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/* If eval opreand produced exception don't set anything */
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/* If eval opreand produced exception don't set anything */
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if (!pending.valid)
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if (!pending.valid)
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set_operand32(0, val, &breakpoint);
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set_operand32(0, val, &breakpoint);
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}
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}
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void l_lhs() {
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void l_lhs() {
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signed short val;
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signed short val;
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IFF (config.cpu.dependstats) cur->func_unit = it_load;
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IFF (config.cpu.dependstats) cur->func_unit = it_load;
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if (config.cpu.sbuf_len) sbuf_load ();
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val = eval_operand16(1, &breakpoint);
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val = eval_operand16(1, &breakpoint);
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/* If eval opreand produced exception don't set anything */
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/* If eval opreand produced exception don't set anything */
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if (!pending.valid)
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if (!pending.valid)
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set_operand32(0, val, &breakpoint);
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set_operand32(0, val, &breakpoint);
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}
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}
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void l_lhz() {
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void l_lhz() {
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unsigned short val;
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unsigned short val;
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IFF (config.cpu.dependstats) cur->func_unit = it_load;
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IFF (config.cpu.dependstats) cur->func_unit = it_load;
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if (config.cpu.sbuf_len) sbuf_load ();
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val = eval_operand16(1, &breakpoint);
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val = eval_operand16(1, &breakpoint);
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/* If eval opreand produced exception don't set anything */
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/* If eval opreand produced exception don't set anything */
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if (!pending.valid)
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if (!pending.valid)
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set_operand32(0, val, &breakpoint);
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set_operand32(0, val, &breakpoint);
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}
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}
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