FreeCalypso > hg > freecalypso-tools
view target-utils/simtest/poll.c @ 516:8bdbae4c0e53
target-utils/helloapp: build boot-ROM-based and fixed-UART versions
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Wed, 29 May 2019 05:40:51 +0000 |
parents | d96ea6ae6aa5 |
children |
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#include <sys/types.h> #include <strings.h> #include "types.h" #include "simregs.h" extern int serial_in_poll(); int enable_poll; void poll_sim_rx() { u32 drx; if (SIMREGS.stat & SIM_STAT_FEMPTY) return; drx = SIMREGS.drx & 0xFF; printf("%02X ", drx); } int mygetchar() { register int c; do { if (enable_poll) poll_sim_rx(); c = serial_in_poll(); } while (c < 0); return c; } void cmd_poll(argbulk) char *argbulk; { char *argv[2]; if (parse_args(argbulk, 1, 1, argv, 0) < 0) return; if (!strcmp(argv[0], "on")) enable_poll = 1; else if (!strcmp(argv[0], "off")) enable_poll = 0; else printf("ERROR: \"on\" or \"off\" argument expected\n"); }