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Initial implementation of oscilloscope debug view
author Michael Pavone <pavone@retrodev.com>
date Tue, 22 Nov 2022 17:57:02 -0800
parents 508522f08e4d
children 74112041b2c7
comparison
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2240:8e8db9141209 2243:0d1d5dccdd28
9 #include <stdint.h> 9 #include <stdint.h>
10 #include <stdio.h> 10 #include <stdio.h>
11 #include "serialize.h" 11 #include "serialize.h"
12 #include "render_audio.h" 12 #include "render_audio.h"
13 #include "vgm.h" 13 #include "vgm.h"
14 #include "oscilloscope.h"
14 15
15 #define NUM_PART_REGS (0xB7-0x30) 16 #define NUM_PART_REGS (0xB7-0x30)
16 #define NUM_CHANNELS 6 17 #define NUM_CHANNELS 6
17 #define NUM_OPERATORS (4*NUM_CHANNELS) 18 #define NUM_OPERATORS (4*NUM_CHANNELS)
18 19
33 uint8_t detune; 34 uint8_t detune;
34 uint8_t am; 35 uint8_t am;
35 uint8_t env_phase; 36 uint8_t env_phase;
36 uint8_t ssg; 37 uint8_t ssg;
37 uint8_t inverted; 38 uint8_t inverted;
39 uint8_t phase_overflow;
38 } ym_operator; 40 } ym_operator;
39 41
40 typedef struct { 42 typedef struct {
41 FILE * logfile; 43 FILE * logfile;
42 uint16_t fnum; 44 uint16_t fnum;
50 uint8_t feedback; 52 uint8_t feedback;
51 uint8_t ams; 53 uint8_t ams;
52 uint8_t pms; 54 uint8_t pms;
53 uint8_t lr; 55 uint8_t lr;
54 uint8_t keyon; 56 uint8_t keyon;
57 uint8_t scope_channel;
58 uint8_t phase_overflow;
55 } ym_channel; 59 } ym_channel;
56 60
57 typedef struct { 61 typedef struct {
58 uint16_t fnum; 62 uint16_t fnum;
59 uint8_t block; 63 uint8_t block;
67 #define YM_PART1_REGS (YM_REG_END-YM_PART1_START) 71 #define YM_PART1_REGS (YM_REG_END-YM_PART1_START)
68 #define YM_PART2_REGS (YM_REG_END-YM_PART2_START) 72 #define YM_PART2_REGS (YM_REG_END-YM_PART2_START)
69 73
70 typedef struct { 74 typedef struct {
71 audio_source *audio; 75 audio_source *audio;
72 vgm_writer *vgm; 76 vgm_writer *vgm;
73 uint32_t clock_inc; 77 oscilloscope *scope;
74 uint32_t current_cycle; 78 uint32_t clock_inc;
75 uint32_t write_cycle; 79 uint32_t current_cycle;
76 uint32_t busy_start; 80 uint32_t write_cycle;
77 uint32_t busy_cycles; 81 uint32_t busy_start;
78 uint32_t last_status_cycle; 82 uint32_t busy_cycles;
79 uint32_t invalid_status_decay; 83 uint32_t last_status_cycle;
80 uint32_t status_address_mask; 84 uint32_t invalid_status_decay;
81 int32_t volume_mult; 85 uint32_t status_address_mask;
82 int32_t volume_div; 86 int32_t volume_mult;
83 ym_operator operators[NUM_OPERATORS]; 87 int32_t volume_div;
84 ym_channel channels[NUM_CHANNELS]; 88 ym_operator operators[NUM_OPERATORS];
85 int16_t zero_offset; 89 ym_channel channels[NUM_CHANNELS];
86 uint16_t timer_a; 90 int16_t zero_offset;
87 uint16_t timer_a_load; 91 uint16_t timer_a;
88 uint16_t env_counter; 92 uint16_t timer_a_load;
89 ym_supp ch3_supp[3]; 93 uint16_t env_counter;
90 uint8_t timer_b; 94 ym_supp ch3_supp[3];
91 uint8_t sub_timer_b; 95 uint8_t timer_b;
92 uint8_t timer_b_load; 96 uint8_t sub_timer_b;
93 uint8_t ch3_mode; 97 uint8_t timer_b_load;
94 uint8_t current_op; 98 uint8_t ch3_mode;
95 uint8_t current_env_op; 99 uint8_t current_op;
100 uint8_t current_env_op;
96 101
97 uint8_t timer_control; 102 uint8_t timer_control;
98 uint8_t dac_enable; 103 uint8_t dac_enable;
99 uint8_t lfo_enable; 104 uint8_t lfo_enable;
100 uint8_t lfo_freq; 105 uint8_t lfo_freq;
101 uint8_t lfo_counter; 106 uint8_t lfo_counter;
102 uint8_t lfo_am_step; 107 uint8_t lfo_am_step;
103 uint8_t lfo_pm_step; 108 uint8_t lfo_pm_step;
104 uint8_t csm_keyon; 109 uint8_t csm_keyon;
105 uint8_t status; 110 uint8_t status;
106 uint8_t last_status; 111 uint8_t last_status;
107 uint8_t selected_reg; 112 uint8_t selected_reg;
108 uint8_t selected_part; 113 uint8_t selected_part;
109 uint8_t part1_regs[YM_PART1_REGS]; 114 uint8_t part1_regs[YM_PART1_REGS];
110 uint8_t part2_regs[YM_PART2_REGS]; 115 uint8_t part2_regs[YM_PART2_REGS];
111 } ym2612_context; 116 } ym2612_context;
112 117
113 enum { 118 enum {
114 REG_LFO = 0x22, 119 REG_LFO = 0x22,
115 REG_TIMERA_HIGH = 0x24, 120 REG_TIMERA_HIGH = 0x24,
152 uint8_t ym_save_gst(ym2612_context * context, FILE * gstfile); 157 uint8_t ym_save_gst(ym2612_context * context, FILE * gstfile);
153 void ym_print_channel_info(ym2612_context *context, int channel); 158 void ym_print_channel_info(ym2612_context *context, int channel);
154 void ym_print_timer_info(ym2612_context *context); 159 void ym_print_timer_info(ym2612_context *context);
155 void ym_serialize(ym2612_context *context, serialize_buffer *buf); 160 void ym_serialize(ym2612_context *context, serialize_buffer *buf);
156 void ym_deserialize(deserialize_buffer *buf, void *vcontext); 161 void ym_deserialize(deserialize_buffer *buf, void *vcontext);
162 void ym_enable_scope(ym2612_context *context, oscilloscope *scope);
157 163
158 #endif //YM2612_H_ 164 #endif //YM2612_H_
159 165