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comparison test_int_timing.c @ 1172:14eb8ff4fb03

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Added synthetic test for tracking down interrupt timing issues
author Michael Pavone <pavone@retrodev.com>
date Mon, 16 Jan 2017 21:38:49 -0800
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children aa6e0914dcd7
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1171:43fa92976ff2 1172:14eb8ff4fb03
1 /*
2 Copyright 2017 Michael Pavone
3 This file is part of BlastEm.
4 BlastEm is free software distributed under the terms of the GNU General Public License version 3 or greater. See COPYING for full license text.
5 */
6 #include <stdio.h>
7 #include "vdp.h"
8
9 int headless = 1;
10
11 uint32_t render_map_color(uint8_t r, uint8_t g, uint8_t b)
12 {
13 return 0;
14 }
15
16 uint16_t read_dma_value(uint32_t address)
17 {
18 return 0;
19 }
20
21
22 int main(int argc, char **argv)
23 {
24 vdp_context context;
25 int ret = 0;
26 init_vdp_context(&context, 0);
27 vdp_control_port_write(&context, 0x8000 | BIT_PAL_SEL);
28 vdp_control_port_write(&context, 0x8100 | BIT_DISP_EN | BIT_VINT_EN | BIT_MODE_5);
29 puts("Testing H32 Mode");
30 while (!(context.flags2 & FLAG2_VINT_PENDING))
31 {
32 vdp_run_context(&context, context.cycles + 1);
33 }
34 vdp_int_ack(&context);
35 uint32_t vint_cycle = vdp_next_vint(&context);
36 while (!(context.flags2 & FLAG2_VINT_PENDING))
37 {
38 vdp_run_context(&context, context.cycles + 1);
39 uint32_t vint_cycle2 = vdp_next_vint(&context);
40 if (vint_cycle2 != vint_cycle) {
41 printf("VINT Cycle changed from %d to %d @ line %d, slot %d\n", vint_cycle, vint_cycle2, context.vcounter, context.hslot);;
42 ret = 1;
43 vint_cycle = vint_cycle2;
44 }
45 }
46 vdp_int_ack(&context);
47 puts("Testing H40 Mode");
48 vdp_control_port_write(&context, 0x8C81);
49 while (!(context.flags2 & FLAG2_VINT_PENDING))
50 {
51 vdp_run_context(&context, context.cycles + 1);
52 }
53 vdp_int_ack(&context);
54 vint_cycle = vdp_next_vint(&context);
55 while (!(context.flags2 & FLAG2_VINT_PENDING))
56 {
57 vdp_run_context(&context, context.cycles + 1);
58 uint32_t vint_cycle2 = vdp_next_vint(&context);
59 if (vint_cycle2 != vint_cycle) {
60 printf("VINT Cycle changed from %d to %d @ line %d, slot %d\n", vint_cycle, vint_cycle2, context.vcounter, context.hslot);;
61 ret = 1;
62 vint_cycle = vint_cycle2;
63 }
64 }
65 vdp_int_ack(&context);
66 puts("Testing Mode 4");
67 vdp_control_port_write(&context, 0x8C00);
68 vdp_control_port_write(&context, 0x8100 | BIT_DISP_EN | BIT_VINT_EN);
69 while (!(context.flags2 & FLAG2_VINT_PENDING))
70 {
71 vdp_run_context(&context, context.cycles + 1);
72 }
73 context.flags2 &= ~FLAG2_VINT_PENDING;
74 vint_cycle = vdp_next_vint(&context);
75 while (!(context.flags2 & FLAG2_VINT_PENDING))
76 {
77 vdp_run_context(&context, context.cycles + 1);
78 uint32_t vint_cycle2 = vdp_next_vint(&context);
79 if (vint_cycle2 != vint_cycle) {
80 printf("VINT Cycle changed from %d to %d @ line %d, slot %d\n", vint_cycle, vint_cycle2, context.vcounter, context.hslot);;
81 ret = 1;
82 vint_cycle = vint_cycle2;
83 }
84 }
85 printf("Result: %s\n", ret ? "failure" : "success");
86 return ret;
87 }