| Line 90... |
Line 90... |
static void
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static void
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tick_restart (void *dat)
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tick_restart (void *dat)
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{
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{
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cpu_state.sprs[SPR_TTCR] = 0;
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cpu_state.sprs[SPR_TTCR] = 0;
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cycles_start = runtime.sim.cycles;
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cycles_start = runtime.sim.cycles;
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SCHED_ADD (tick_restart, NULL, cpu_state.sprs[SPR_TTMR] & SPR_TTMR_PERIOD);
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SCHED_ADD (tick_restart, NULL, cpu_state.sprs[SPR_TTMR] & SPR_TTMR_TP);
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}
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}
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/*! Stops the timer */
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/*! Stops the timer */
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static void
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static void
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tick_one_shot (void *dat)
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tick_one_shot (void *dat)
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{
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{
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cpu_state.sprs[SPR_TTCR] = cpu_state.sprs[SPR_TTMR] & SPR_TTMR_PERIOD;
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cpu_state.sprs[SPR_TTCR] = cpu_state.sprs[SPR_TTMR] & SPR_TTMR_TP;
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tick_count = 0;
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tick_count = 0;
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}
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}
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|
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/*! Schedules the timer jobs */
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/*! Schedules the timer jobs */
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static void
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static void
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sched_timer_job (uorreg_t prev_ttmr)
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sched_timer_job (uorreg_t prev_ttmr)
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{
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{
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uorreg_t ttmr = cpu_state.sprs[SPR_TTMR];
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uorreg_t ttmr = cpu_state.sprs[SPR_TTMR];
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uint32_t match_time = ttmr & SPR_TTMR_PERIOD;
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uint32_t match_time = ttmr & SPR_TTMR_TP;
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uint32_t ttcr_period = spr_read_ttcr () & SPR_TTCR_PERIOD;
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uint32_t ttcr_period = spr_read_ttcr () & SPR_TTCR_CNT;
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|
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/* Remove previous jobs if they exists */
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/* Remove previous jobs if they exists */
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if ((prev_ttmr & SPR_TTMR_IE) && !(ttmr & SPR_TTMR_IP))
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if ((prev_ttmr & SPR_TTMR_IE) && !(ttmr & SPR_TTMR_IP))
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{
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{
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SCHED_FIND_REMOVE (tick_raise_except, NULL);
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SCHED_FIND_REMOVE (tick_raise_except, NULL);
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| Line 194... |
Line 194... |
cycles_start = runtime.sim.cycles - cpu_state.sprs[SPR_TTCR];
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cycles_start = runtime.sim.cycles - cpu_state.sprs[SPR_TTCR];
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|
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tick_count = value & SPR_TTMR_M;
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tick_count = value & SPR_TTMR_M;
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|
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if ((tick_count == 0xc0000000) &&
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if ((tick_count == 0xc0000000) &&
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(cpu_state.sprs[SPR_TTCR] == (value & SPR_TTMR_PERIOD)))
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(cpu_state.sprs[SPR_TTCR] == (value & SPR_TTMR_TP)))
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{
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{
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tick_count = 0;
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tick_count = 0;
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}
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}
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|
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sched_timer_job (prev_val);
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sched_timer_job (prev_val);
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