Mercurial > repos > blastem
diff test_int_timing.c @ 1172:14eb8ff4fb03
Added synthetic test for tracking down interrupt timing issues
author | Michael Pavone <pavone@retrodev.com> |
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date | Mon, 16 Jan 2017 21:38:49 -0800 |
parents | |
children | aa6e0914dcd7 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/test_int_timing.c Mon Jan 16 21:38:49 2017 -0800 @@ -0,0 +1,87 @@ +/* + Copyright 2017 Michael Pavone + This file is part of BlastEm. + BlastEm is free software distributed under the terms of the GNU General Public License version 3 or greater. See COPYING for full license text. +*/ +#include <stdio.h> +#include "vdp.h" + +int headless = 1; + +uint32_t render_map_color(uint8_t r, uint8_t g, uint8_t b) +{ + return 0; +} + +uint16_t read_dma_value(uint32_t address) +{ + return 0; +} + + +int main(int argc, char **argv) +{ + vdp_context context; + int ret = 0; + init_vdp_context(&context, 0); + vdp_control_port_write(&context, 0x8000 | BIT_PAL_SEL); + vdp_control_port_write(&context, 0x8100 | BIT_DISP_EN | BIT_VINT_EN | BIT_MODE_5); + puts("Testing H32 Mode"); + while (!(context.flags2 & FLAG2_VINT_PENDING)) + { + vdp_run_context(&context, context.cycles + 1); + } + vdp_int_ack(&context); + uint32_t vint_cycle = vdp_next_vint(&context); + while (!(context.flags2 & FLAG2_VINT_PENDING)) + { + vdp_run_context(&context, context.cycles + 1); + uint32_t vint_cycle2 = vdp_next_vint(&context); + if (vint_cycle2 != vint_cycle) { + printf("VINT Cycle changed from %d to %d @ line %d, slot %d\n", vint_cycle, vint_cycle2, context.vcounter, context.hslot);; + ret = 1; + vint_cycle = vint_cycle2; + } + } + vdp_int_ack(&context); + puts("Testing H40 Mode"); + vdp_control_port_write(&context, 0x8C81); + while (!(context.flags2 & FLAG2_VINT_PENDING)) + { + vdp_run_context(&context, context.cycles + 1); + } + vdp_int_ack(&context); + vint_cycle = vdp_next_vint(&context); + while (!(context.flags2 & FLAG2_VINT_PENDING)) + { + vdp_run_context(&context, context.cycles + 1); + uint32_t vint_cycle2 = vdp_next_vint(&context); + if (vint_cycle2 != vint_cycle) { + printf("VINT Cycle changed from %d to %d @ line %d, slot %d\n", vint_cycle, vint_cycle2, context.vcounter, context.hslot);; + ret = 1; + vint_cycle = vint_cycle2; + } + } + vdp_int_ack(&context); + puts("Testing Mode 4"); + vdp_control_port_write(&context, 0x8C00); + vdp_control_port_write(&context, 0x8100 | BIT_DISP_EN | BIT_VINT_EN); + while (!(context.flags2 & FLAG2_VINT_PENDING)) + { + vdp_run_context(&context, context.cycles + 1); + } + context.flags2 &= ~FLAG2_VINT_PENDING; + vint_cycle = vdp_next_vint(&context); + while (!(context.flags2 & FLAG2_VINT_PENDING)) + { + vdp_run_context(&context, context.cycles + 1); + uint32_t vint_cycle2 = vdp_next_vint(&context); + if (vint_cycle2 != vint_cycle) { + printf("VINT Cycle changed from %d to %d @ line %d, slot %d\n", vint_cycle, vint_cycle2, context.vcounter, context.hslot);; + ret = 1; + vint_cycle = vint_cycle2; + } + } + printf("Result: %s\n", ret ? "failure" : "success"); + return ret; +} \ No newline at end of file