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comparison test.c @ 720:15d9359fd771

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Add some tests for hint timing and fix it properly this time.
author Michael Pavone <pavone@retrodev.com>
date Wed, 20 May 2015 22:27:51 -0700
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719:019d27995e32 720:15d9359fd771
1 #include <stdint.h>
2 #include <stdlib.h>
3 #include <string.h>
4 #include <stdio.h>
5 #include "vdp.h"
6
7 int headless = 1;
8 uint16_t read_dma_value(uint32_t address)
9 {
10 return 0;
11 }
12
13 uint32_t render_map_color(uint8_t r, uint8_t g, uint8_t b)
14 {
15 return 0;
16 }
17
18 void render_alloc_surfaces(vdp_context * context)
19 {
20 context->oddbuf = context->framebuf = malloc(512 * 256 * 4 * 2);
21 memset(context->oddbuf, 0, 512 * 256 * 4 * 2);
22 context->evenbuf = ((char *)context->oddbuf) + 512 * 256 * 4;
23 }
24
25 int check_hint_time(vdp_context * v_context)
26 {
27 uint32_t orig_hint_cycle = vdp_next_hint(v_context);
28 uint32_t cur_hint_cycle;
29 printf("hint cycle is %d at vcounter: %d, hslot: %d\n", orig_hint_cycle, v_context->vcounter, v_context->hslot);
30 int res = 1;
31 while ((cur_hint_cycle = vdp_next_hint(v_context)) > v_context->cycles)
32 {
33 if (cur_hint_cycle != orig_hint_cycle) {
34 fprintf(stderr, "ERROR: hint cycle changed to %d at vcounter: %d, hslot: %d\n", cur_hint_cycle, v_context->vcounter, v_context->hslot);
35 orig_hint_cycle = cur_hint_cycle;
36 res = 0;
37 }
38 vdp_run_context(v_context, v_context->cycles + 1);
39 }
40 printf("hint fired at cycle: %d, vcounter: %d, hslot: %d\n", cur_hint_cycle, v_context->vcounter, v_context->hslot);
41 vdp_int_ack(v_context, 4);
42 return res;
43 }
44
45
46 int main(int argc, char ** argv)
47 {
48 vdp_context v_context;
49 init_vdp_context(&v_context, 0);
50 vdp_control_port_write(&v_context, 0x8144);
51 vdp_control_port_write(&v_context, 0x8C81);
52 vdp_control_port_write(&v_context, 0x8A7F);
53 vdp_control_port_write(&v_context, 0x8014);
54 v_context.hint_counter = 0x7F;
55 v_context.vcounter = 128;
56 v_context.hslot = 165;
57 //check single shot behavior
58 int res = check_hint_time(&v_context);
59 //check every line behavior
60 while (v_context.vcounter < 225)
61 {
62 vdp_run_context(&v_context, v_context.cycles + 1);
63 }
64 vdp_control_port_write(&v_context, 0x8A00);
65 int hint_count = 0;
66 while (res && v_context.vcounter != 224)
67 {
68 res = res && check_hint_time(&v_context);
69 hint_count++;
70 }
71 if (res && hint_count != 225) {
72 fprintf(stderr, "ERROR: hint count should be 225 but was %d instead\n", hint_count);
73 res = 0;
74 }
75 return 0;
76 }