136 lines
2.4 KiB
C
136 lines
2.4 KiB
C
// The OS/K Team licenses this file to you under the MIT license.
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// See the LICENSE file in the project root for more information.
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#include <signal.h>
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#include <dv/dev.h>
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#include <sys/time.h>
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#include <termio.h>
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#define FWPROGSIZE (1024 * 1024 * 1024)
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static ssize_t fwsize;
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static ushort *fwprog;
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ushort bget(ctx_t *ctx)
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{
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if (rip % 2) {
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_except(ctx, E_ALI, "Misaligned RIP register: 0x%016lX",
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rip);
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}
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if (addr2real(rip) >= ctx->mz) {
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_except(ctx, E_ACC, "Executing out of memory: 0x%016lX",
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rip);
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}
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ushort c = ctx->mp[addr2real(rip)];
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rip += 2;
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return c;
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}
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ctx_t main_ctx;
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void sigint(int _)
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{
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//
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// Enable stdin echoing
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//
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struct termios t;
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tcgetattr(0, &t);
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t.c_lflag |= ECHO;
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tcsetattr(0, TCSANOW, &t);
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//
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// Shut down devices
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//
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devfiniall(&main_ctx);
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exit(0);
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}
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int main(int argc, char **argv)
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{
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FILE *fwfile;
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main_ctx.r = arch_r;
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main_ctx.i = arch_i;
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//
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// srand
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//
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struct timeval time;
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gettimeofday(&time, NULL);
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srandom((time.tv_sec * 1000) + (time.tv_usec / 1000));
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//
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// Disable stdin echoing
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//
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struct termios t;
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tcgetattr(0, &t);
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t.c_lflag &= ~ECHO;
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tcsetattr(0, TCSANOW, &t);
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//
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// Signal handling
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//
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signal(SIGINT, sigint);
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//
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// Load program
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//
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if (argc < 2) {
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log("Not enough arguments\n");
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exit(-3);
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}
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fwprog = malloc(FWPROGSIZE);
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fwfile = fopen(argv[1], "rb");
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if (!fwprog) {
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log("Couldn't allocate firmware buffer\n");
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exit(-1);
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}
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if (!fwfile) {
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log("Couldn't open program file\n");
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exit(-2);
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}
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fwsize = fread(fwprog, 1, FWPROGSIZE, fwfile);
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if (fwsize < 2) {
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log("Program file too small or empty\n");
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exit(-3);
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}
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main_ctx.mp = malloc(MEMSIZE + 16);
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main_ctx.mz = MEMSIZE;
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main_ctx.get = bget;
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main_ctx.r[RIP].val = MEMOFF;
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if (main_ctx.mp == 0) {
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log("Couldn't allocate RAM\n");
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exit(-1);
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}
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memcpy(&main_ctx.mp[addr2real(main_ctx.r[RIP].val)], fwprog, fwsize);
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main_ctx.dh = 0;
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if (devinitall(&main_ctx) < 0) {
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log("Couldn't initialize devices\n");
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exit(-10);
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}
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while (1) {
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decode(&main_ctx);
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if (main_ctx.step)
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getchar();
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}
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}
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