github.com/open-simh.simh
1
0
Fork 0
mirror of https://github.com/open-simh/simh.git synced 2026-01-25 19:57:36 +00:00
Code Issues Projects Releases Wiki Activity

Asynchronous Multiplexer and Console Support

Browse Source 
scp.c, scp.h, sim_defs.h
     - Added commands:
          SHOW MULTIPLEXER (MUX)
          SHOW TIMERS
     - Added facilities/APIs:
          sim_activate_after - time specific event scheduling (vs instruction scheduling) API visible, optional separate thread implementation in a later revision
     - Changed Commands:
          SET CONSOLE DEBUG no longer affects global debugging, but merely debugging for the console subsystem.  Use SET DEBUG and SET NODEBUG to affect global debugging.
     - Added Asynchronous polling support

sim_tmxr.h, sim_tmxr.c
     - Added Asynchronous capabilities to the multiplexer subsystem to avoid polling for input and to deliver input data instantly when it arrives instead of delaying for up to one or more full simulated clock ticks.
     - Added debug trace support
     - Added statistic tracking of total bytes transmitted on each line
     - Added more aggressive attempts to flush transmit buffers when they fill before dropping tranmitted characters
     - Fixed status return of tmxr_putc_ln to return SCPE_LOST if the transmitting line isn't connected or buffered.

sim_console.h, sim_console.c
     - Fixed issue where connections to console telnet sessions would succeed for the first connection, but hang indefinitely for additional connects without rejecting due to all lines being busy.  This is handled by using an internal device and unit to hang the required polling on.  Connection polls happen once per second.
     - Added console debugging/trace support.
     - Added Asynchronous capabilities to the console subsystem to avoid polling for input and to deliver input data instantly when it arrives instead of delaying for up to one or more full simulated clock ticks.
     - Added tmxr_set_console_input_unit() API to support asynchronous simulator console I/O

sim_timer.h, sim_timer.c
     - Added SHOW TIMERS support
     - Added mechanism to capture the timer the simulator uses for its clock tick and make this timer globally available for other uses

PDP11/pdp11_dz.c
     - Added debug trace support

PDP11/pdp11_vh.c
     - Added debug trace support
     - Changed timing mechanisms to not assume that the count unit service routine calls measures the passage of time, and created a separate unit to measure time.

VAX/vax_stddev.c
     - Added call to tmxr_set_console_input_unit to leverage Asynchronous console I/O
This commit is contained in:
Mark Pizzolato
2012-05-12 13:42:44 -07:00
parent e3bdb12aeb
commit 7c38b83d7c
13 changed files with 1242 additions and 166 deletions
Download Patch File Download Diff File Expand all files Collapse all files

7
sim_timer.h
View File

@@ -85,6 +85,7 @@ void sim_rtcn_init_all (void);
int32 sim_rtcn_calb (int32 ticksper, int32 tmr);
int32 sim_rtc_init (int32 time);
int32 sim_rtc_calb (int32 ticksper);
t_stat sim_show_timers (FILE* st, DEVICE *dptr, UNIT* uptr, int32 val, char* desc);
t_bool sim_idle (uint32 tmr, t_bool sin_cyc);
t_stat sim_set_throt (int32 arg, char *cptr);
t_stat sim_show_throt (FILE *st, DEVICE *dnotused, UNIT *unotused, int32 flag, char *cptr);
@@ -98,4 +99,10 @@ void sim_os_sleep (unsigned int sec);
uint32 sim_os_ms_sleep (unsigned int msec);
uint32 sim_os_ms_sleep_init (void);
extern t_bool sim_idle_enab; /* idle enabled flag */
extern volatile t_bool sim_idle_wait; /* idle waiting flag */
extern int32 *sim_tmr_poll; /* pointer to instructions per clock tick */
extern int32 *sim_clk_tps; /* pointer to clock ticks per second */
#endif