Mercurial > repos > blastem
annotate termhelper.c @ 922:913a6336ce20
Shift slot number to slot behavior mapping by six slots in H40 mode. This makes the line change slot align with the point at which the display turns on and off at the end of the active display area. Also fixed a regression in which an external slot got accidentally changed into a sprite draw slot
author | Michael Pavone <pavone@retrodev.com> |
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date | Thu, 28 Jan 2016 09:10:14 -0800 |
parents | 792be135d3af |
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794
792be135d3af
Spawn a terminal for the debugger when needed if we are not already attached to one
Michael Pavone <pavone@retrodev.com>
parents:
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1 #include <sys/types.h> |
792be135d3af
Spawn a terminal for the debugger when needed if we are not already attached to one
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2 #include <sys/stat.h> |
792be135d3af
Spawn a terminal for the debugger when needed if we are not already attached to one
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3 #include <fcntl.h> |
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Spawn a terminal for the debugger when needed if we are not already attached to one
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4 #include <unistd.h> |
792be135d3af
Spawn a terminal for the debugger when needed if we are not already attached to one
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5 #include <stdlib.h> |
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Spawn a terminal for the debugger when needed if we are not already attached to one
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6 #include "terminal.h" |
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Spawn a terminal for the debugger when needed if we are not already attached to one
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7 |
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8 char buf[4096]; |
792be135d3af
Spawn a terminal for the debugger when needed if we are not already attached to one
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9 |
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10 void copy_data(int to, int from) |
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11 { |
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12 ssize_t bytes = read(from, buf, sizeof(buf)); |
792be135d3af
Spawn a terminal for the debugger when needed if we are not already attached to one
Michael Pavone <pavone@retrodev.com>
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13 while (bytes > 0) |
792be135d3af
Spawn a terminal for the debugger when needed if we are not already attached to one
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14 { |
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15 ssize_t written = write(to, buf, bytes); |
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16 if (written == -1) { |
792be135d3af
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17 exit(1); |
792be135d3af
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18 } |
792be135d3af
Spawn a terminal for the debugger when needed if we are not already attached to one
Michael Pavone <pavone@retrodev.com>
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19 bytes -= written; |
792be135d3af
Spawn a terminal for the debugger when needed if we are not already attached to one
Michael Pavone <pavone@retrodev.com>
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20 } |
792be135d3af
Spawn a terminal for the debugger when needed if we are not already attached to one
Michael Pavone <pavone@retrodev.com>
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21 } |
792be135d3af
Spawn a terminal for the debugger when needed if we are not already attached to one
Michael Pavone <pavone@retrodev.com>
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22 |
792be135d3af
Spawn a terminal for the debugger when needed if we are not already attached to one
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23 int main(int argc, char **argv) |
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24 { |
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25 //these will block so order is important |
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Spawn a terminal for the debugger when needed if we are not already attached to one
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26 int input_fd = open(INPUT_PATH, O_WRONLY); |
792be135d3af
Spawn a terminal for the debugger when needed if we are not already attached to one
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27 int output_fd = open(OUTPUT_PATH, O_RDONLY); |
792be135d3af
Spawn a terminal for the debugger when needed if we are not already attached to one
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28 fd_set read_fds; |
792be135d3af
Spawn a terminal for the debugger when needed if we are not already attached to one
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29 FD_ZERO(&read_fds); |
792be135d3af
Spawn a terminal for the debugger when needed if we are not already attached to one
Michael Pavone <pavone@retrodev.com>
parents:
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30 for (;;) |
792be135d3af
Spawn a terminal for the debugger when needed if we are not already attached to one
Michael Pavone <pavone@retrodev.com>
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31 { |
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32 FD_SET(STDIN_FILENO, &read_fds); |
792be135d3af
Spawn a terminal for the debugger when needed if we are not already attached to one
Michael Pavone <pavone@retrodev.com>
parents:
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33 FD_SET(output_fd, &read_fds); |
792be135d3af
Spawn a terminal for the debugger when needed if we are not already attached to one
Michael Pavone <pavone@retrodev.com>
parents:
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34 select(output_fd+1, &read_fds, NULL, NULL, NULL); |
792be135d3af
Spawn a terminal for the debugger when needed if we are not already attached to one
Michael Pavone <pavone@retrodev.com>
parents:
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35 |
792be135d3af
Spawn a terminal for the debugger when needed if we are not already attached to one
Michael Pavone <pavone@retrodev.com>
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36 if (FD_ISSET(STDIN_FILENO, &read_fds)) { |
792be135d3af
Spawn a terminal for the debugger when needed if we are not already attached to one
Michael Pavone <pavone@retrodev.com>
parents:
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37 copy_data(input_fd, STDIN_FILENO); |
792be135d3af
Spawn a terminal for the debugger when needed if we are not already attached to one
Michael Pavone <pavone@retrodev.com>
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38 } |
792be135d3af
Spawn a terminal for the debugger when needed if we are not already attached to one
Michael Pavone <pavone@retrodev.com>
parents:
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39 if (FD_ISSET(output_fd, &read_fds)) { |
792be135d3af
Spawn a terminal for the debugger when needed if we are not already attached to one
Michael Pavone <pavone@retrodev.com>
parents:
diff
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40 copy_data(STDOUT_FILENO, output_fd); |
792be135d3af
Spawn a terminal for the debugger when needed if we are not already attached to one
Michael Pavone <pavone@retrodev.com>
parents:
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41 } |
792be135d3af
Spawn a terminal for the debugger when needed if we are not already attached to one
Michael Pavone <pavone@retrodev.com>
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42 } |
792be135d3af
Spawn a terminal for the debugger when needed if we are not already attached to one
Michael Pavone <pavone@retrodev.com>
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43 return 0; |
792be135d3af
Spawn a terminal for the debugger when needed if we are not already attached to one
Michael Pavone <pavone@retrodev.com>
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44 } |