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annotate test.c @ 995:2bc27415565b

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Fix some stuff with interrupt timing. The change in adjust_int_cycle gets Overdrive working again (vint was not being preferred over hint in some cases). One of the changes seems to have broken Fatal Rewind again, but no other regressions that I can see.
author Michael Pavone <pavone@retrodev.com>
date Sat, 30 Apr 2016 08:37:55 -0700
parents 15d9359fd771
children
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15d9359fd771 Add some tests for hint timing and fix it properly this time.
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1 #include <stdint.h>
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2 #include <stdlib.h>
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3 #include <string.h>
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4 #include <stdio.h>
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5 #include "vdp.h"
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6
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7 int headless = 1;
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8 uint16_t read_dma_value(uint32_t address)
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9 {
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10 return 0;
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11 }
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12
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13 uint32_t render_map_color(uint8_t r, uint8_t g, uint8_t b)
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14 {
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15 return 0;
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16 }
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17
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18 void render_alloc_surfaces(vdp_context * context)
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19 {
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20 context->oddbuf = context->framebuf = malloc(512 * 256 * 4 * 2);
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21 memset(context->oddbuf, 0, 512 * 256 * 4 * 2);
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22 context->evenbuf = ((char *)context->oddbuf) + 512 * 256 * 4;
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23 }
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24
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25 int check_hint_time(vdp_context * v_context)
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26 {
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27 uint32_t orig_hint_cycle = vdp_next_hint(v_context);
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28 uint32_t cur_hint_cycle;
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29 printf("hint cycle is %d at vcounter: %d, hslot: %d\n", orig_hint_cycle, v_context->vcounter, v_context->hslot);
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30 int res = 1;
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31 while ((cur_hint_cycle = vdp_next_hint(v_context)) > v_context->cycles)
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32 {
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33 if (cur_hint_cycle != orig_hint_cycle) {
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34 fprintf(stderr, "ERROR: hint cycle changed to %d at vcounter: %d, hslot: %d\n", cur_hint_cycle, v_context->vcounter, v_context->hslot);
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35 orig_hint_cycle = cur_hint_cycle;
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36 res = 0;
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37 }
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38 vdp_run_context(v_context, v_context->cycles + 1);
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39 }
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40 printf("hint fired at cycle: %d, vcounter: %d, hslot: %d\n", cur_hint_cycle, v_context->vcounter, v_context->hslot);
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41 vdp_int_ack(v_context, 4);
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42 return res;
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43 }
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44
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45
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46 int main(int argc, char ** argv)
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47 {
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48 vdp_context v_context;
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49 init_vdp_context(&v_context, 0);
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50 vdp_control_port_write(&v_context, 0x8144);
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51 vdp_control_port_write(&v_context, 0x8C81);
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52 vdp_control_port_write(&v_context, 0x8A7F);
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53 vdp_control_port_write(&v_context, 0x8014);
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54 v_context.hint_counter = 0x7F;
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55 v_context.vcounter = 128;
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56 v_context.hslot = 165;
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57 //check single shot behavior
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58 int res = check_hint_time(&v_context);
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59 //check every line behavior
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60 while (v_context.vcounter < 225)
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61 {
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62 vdp_run_context(&v_context, v_context.cycles + 1);
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63 }
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64 vdp_control_port_write(&v_context, 0x8A00);
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65 int hint_count = 0;
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66 while (res && v_context.vcounter != 224)
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67 {
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68 res = res && check_hint_time(&v_context);
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69 hint_count++;
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70 }
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71 if (res && hint_count != 225) {
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72 fprintf(stderr, "ERROR: hint count should be 225 but was %d instead\n", hint_count);
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73 res = 0;
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74 }
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75 return 0;
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76 }