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SCP: Double the initial & pre-calibrated instructions/cycles per second.

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uint32 gives us an extra bit and negative instruction rates are not
meaningful.
This commit is contained in:
Mark Pizzolato
2022-07-17 17:30:20 -10:00
parent 5cbf9df0df
commit 4ae0de84c6
2 changed files with 3 additions and 3 deletions
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2
scp.h
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@@ -380,7 +380,7 @@ extern t_value (*sim_vm_pc_value) (void);
extern t_bool (*sim_vm_is_subroutine_call) (t_addr **ret_addrs);
extern void (*sim_vm_reg_update) (REG *rptr, uint32 idx, t_value prev_val, t_value new_val);
extern const char **sim_clock_precalibrate_commands;
extern int32 sim_vm_initial_ips; /* base estimate of simulated instructions per second */
extern uint32 sim_vm_initial_ips; /* base estimate of simulated instructions per second */
extern const char *sim_vm_interval_units; /* Simulator can change this - default "instructions" */
extern const char *sim_vm_step_unit; /* Simulator can change this - default "instruction" */

4
sim_timer.c
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@@ -150,9 +150,9 @@ return real_sim_os_ms_sleep (msec);
t_bool sim_idle_enab = FALSE; /* global flag */
volatile t_bool sim_idle_wait = FALSE; /* global flag */
int32 sim_vm_initial_ips = SIM_INITIAL_IPS;
uint32 sim_vm_initial_ips = SIM_INITIAL_IPS;
static int32 sim_precalibrate_ips = SIM_INITIAL_IPS;
static uint32 sim_precalibrate_ips = SIM_INITIAL_IPS;
static int32 sim_calb_tmr = -1; /* the system calibrated timer */
static int32 sim_calb_tmr_last = -1; /* shadow value when at sim> prompt */
static double sim_inst_per_sec_last = 0; /* shadow value when at sim> prompt */