diff options
author | 2015-11-08 12:56:12 +0100 | |
---|---|---|
committer | 2015-11-08 12:56:12 +0100 | |
commit | 7c19aac60e12d6f5ea301bdb34d7826a01e0b06f (patch) | |
tree | f310d86aa2c6bfc19d115307dedde4eb0cd52dad /src/devices/sound/tms5110.cpp | |
parent | a57b46ae933badd7441ce1644711dbb851e2b504 (diff) |
Rename *.c -> *.cpp in our source (nw)
Diffstat (limited to 'src/devices/sound/tms5110.cpp')
-rw-r--r-- | src/devices/sound/tms5110.cpp | 1621 |
1 files changed, 1621 insertions, 0 deletions
diff --git a/src/devices/sound/tms5110.cpp b/src/devices/sound/tms5110.cpp new file mode 100644 index 00000000000..bd6223cfe21 --- /dev/null +++ b/src/devices/sound/tms5110.cpp @@ -0,0 +1,1621 @@ +// license:??? +// copyright-holders:Frank Palazzolo, Jarek Burczynski, Aaron Giles, Jonathan Gevaryahu, Couriersud +/********************************************************************************************** + + TMS5110 simulator (modified from TMS5220 by Jarek Burczynski) + + Written for MAME by Frank Palazzolo + With help from Neill Corlett + Additional tweaking by Aaron Giles + Various fixes by Lord Nightmare + Additional enhancements by Couriersud + Sub-interpolation-cycle parameter updating added by Lord Nightmare + Read-bit and Output fixes by Lord Nightmare + + Todo: + - implement CS + - TMS5110_CMD_TEST_TALK is only partially implemented + + TMS5100: + + +-----------------+ + TST | 1 28 | CS + PDC | 2 27 | CTL8 + ROM CK | 3 26 | ADD8 + CPU CK | 4 25 | CTL1 + VDD | 5 24 | ADD1 + CR OSC | 6 23 | CTL2 + RC OSC | 7 22 | ADD2 + T11 | 8 21 | ADD4 + NC | 9 20 | CTL4 + I/O | 10 19 | M1 + SPK1 | 11 18 | NC + SPK2 | 12 17 | NC + PROM OUT | 13 16 | NC + VSS | 14 15 | M0 + +-----------------+ + + T11: Sync for serial data out + + + M58817 + + The following connections could be derived from radar scope schematics. + The M58817 is not 100% pin compatible to the 5100, but really close. + + +-----------------+ + (NC) | 1 28 | CS + PDC | 2 27 | CTL8 + ROM CK | 3 26 | ADD8 (to 58819) + (NC) | 4 25 | CTL1 + (VDD,-5) | 5 24 | ADD1 (to 58819) + (GND) | 6 23 | CTL2 + Xin | 7 22 | ADD2 (to 58819) + Xout | 8 21 | ADD4 (to 58819) + (NC) | 9 20 | CTL4 + (VDD,-5) | 10 19 | Status back to CPU + (NC) | 11 18 | C1 (to 58819) + SPKR | 12 17 | (NC) + SPKR | 13 16 | C0 (to 58819) + (NC) | 14 15 | (5V) + +-----------------+ + +***********************************************************************************************/ + +#include "emu.h" +#include "tms5110.h" + +static INT16 clip_analog(INT16 cliptemp); + +/* *****optional defines***** */ + +/* Hacky improvements which don't match patent: */ +/* Interpolation shift logic: + * One of the following two lines should be used, and the other commented + * The second line is more accurate mathematically but not accurate to the patent + */ +#define INTERP_SHIFT >> m_coeff->interp_coeff[m_IP] +//define INTERP_SHIFT / (1<<m_coeff->interp_coeff[m_IP]) + +/* Other hacks */ +/* HACK: if defined, outputs the low 4 bits of the lattice filter to the i/o + * or clip logic, even though the real hardware doesn't do this, partially verified by decap */ +#undef ALLOW_4_LSB + +/* forces m_TALK active instantly whenever m_SPEN would be activated, causing speech delay to be reduced by up to one frame time */ +/* for some reason, this hack makes snmath behave marginally more accurate to hardware, though it does not match the patent */ +#define FAST_START_HACK 1 + + +/* *****configuration of chip connection stuff***** */ +/* must be defined; if 0, output the waveform as if it was tapped on the speaker pin as usual, if 1, output the waveform as if it was tapped on the i/o pin (volume is much lower in the latter case) */ +#define FORCE_DIGITAL 0 + + +/* *****debugging defines***** */ +#undef VERBOSE +// above is general, somewhat obsolete, catch all for debugs which don't fit elsewhere +#undef DEBUG_PARSE_FRAME_DUMP +// above dumps each frame to stderr: be sure to select one of the options below if you define it! +#undef DEBUG_PARSE_FRAME_DUMP_BIN +// dumps each speech frame as binary +#undef DEBUG_PARSE_FRAME_DUMP_HEX +// dumps each speech frame as hex +#undef DEBUG_FRAME_ERRORS +// above dumps info if a frame ran out of data +#undef DEBUG_COMMAND_DUMP +// above dumps all command writes and PDC-related state machine changes, plus command writes to VSMs +#undef DEBUG_GENERATION +// above dumps debug information related to the sample generation loop, i.e. whether interpolation is inhibited or not, and what the current and target values for each frame are. +#undef DEBUG_GENERATION_VERBOSE +// above dumps MUCH MORE debug information related to the sample generation loop, namely the excitation, energy, pitch, k*, and output values for EVERY SINGLE SAMPLE during a frame. +#undef DEBUG_LATTICE +// above dumps the lattice filter state data each sample. +#undef DEBUG_CLIP +// above dumps info to stderr whenever the analog clip hardware is (or would be) clipping the signal. + + +#define MAX_SAMPLE_CHUNK 512 + +/* 6 Variants, from tms5110r.inc */ + +#define TMS5110_IS_TMC0281 (1) +#define TMS5110_IS_TMC0281D (2) +#define TMS5110_IS_CD2801 (3) +#define TMS5110_IS_CD2802 (4) +#define TMS5110_IS_TMS5110A (5) +#define TMS5110_IS_M58817 (6) + + +/* States for CTL */ + +// ctl bus is input to tms51xx +#define CTL_STATE_INPUT (0) +// ctl bus is outputting a test talk command on CTL1(bit 0) +#define CTL_STATE_TTALK_OUTPUT (1) +// ctl bus is switching direction, next will be above +#define CTL_STATE_NEXT_TTALK_OUTPUT (2) +// ctl bus is outputting a read nybble 'output' command on CTL1,2,4,8 (bits 0-3) +#define CTL_STATE_OUTPUT (3) +// ctl bus is switching direction, next will be above +#define CTL_STATE_NEXT_OUTPUT (4) + + + +/* Pull in the ROM tables */ +#include "tms5110r.inc" + +#define DEBUG_5110 0 + +void tms5110_device::set_variant(int variant) +{ + switch (variant) + { + case TMS5110_IS_TMC0281: + m_coeff = &T0280B_0281A_coeff; + break; + case TMS5110_IS_TMC0281D: + m_coeff = &T0280D_0281D_coeff; + break; + case TMS5110_IS_CD2801: + m_coeff = &T0280F_2801A_coeff; + break; + case TMS5110_IS_M58817: + m_coeff = &M58817_coeff; + break; + case TMS5110_IS_CD2802: + m_coeff = &T0280F_2802_coeff; + break; + case TMS5110_IS_TMS5110A: + m_coeff = &tms5110a_coeff; + break; + default: + fatalerror("Unknown variant in tms5110_create\n"); + } + + m_variant = variant; +} + +void tms5110_device::new_int_write(UINT8 rc, UINT8 m0, UINT8 m1, UINT8 addr) +{ + if (!m_m0_cb.isnull()) + m_m0_cb(m0); + if (!m_m1_cb.isnull()) + m_m1_cb(m1); + if (!m_addr_cb.isnull()) + m_addr_cb((offs_t)0, addr); + if (!m_romclk_cb.isnull()) + { + //printf("rc %d\n", rc); + m_romclk_cb(rc); + } +} + +void tms5110_device::new_int_write_addr(UINT8 addr) +{ + new_int_write(1, 0, 1, addr); // romclk 1, m0 0, m1 1, addr bus nybble = xxxx + new_int_write(0, 0, 1, addr); // romclk 0, m0 0, m1 1, addr bus nybble = xxxx + new_int_write(1, 0, 0, addr); // romclk 1, m0 0, m1 0, addr bus nybble = xxxx + new_int_write(0, 0, 0, addr); // romclk 0, m0 0, m1 0, addr bus nybble = xxxx +} + +UINT8 tms5110_device::new_int_read() +{ + new_int_write(1, 1, 0, 0); // romclk 1, m0 1, m1 0, addr bus nybble = 0/open bus + new_int_write(0, 1, 0, 0); // romclk 0, m0 1, m1 0, addr bus nybble = 0/open bus + new_int_write(1, 0, 0, 0); // romclk 1, m0 0, m1 0, addr bus nybble = 0/open bus + new_int_write(0, 0, 0, 0); // romclk 0, m0 0, m1 0, addr bus nybble = 0/open bus + if (!m_data_cb.isnull()) + return m_data_cb(); + if (DEBUG_5110) logerror("WARNING: CALLBACK MISSING, RETURNING 0!\n"); + return 0; +} + +void tms5110_device::register_for_save_states() +{ + save_item(NAME(m_variant)); + + save_item(NAME(m_PDC)); + save_item(NAME(m_CTL_pins)); + save_item(NAME(m_SPEN)); + save_item(NAME(m_TALK)); + save_item(NAME(m_TALKD)); + save_item(NAME(m_state)); + + save_item(NAME(m_address)); + save_item(NAME(m_next_is_address)); + save_item(NAME(m_schedule_dummy_read)); + save_item(NAME(m_addr_bit)); + save_item(NAME(m_CTL_buffer)); + + save_item(NAME(m_OLDE)); + save_item(NAME(m_OLDP)); + + save_item(NAME(m_new_frame_energy_idx)); + save_item(NAME(m_new_frame_pitch_idx)); + save_item(NAME(m_new_frame_k_idx)); +#ifdef PERFECT_INTERPOLATION_HACK + save_item(NAME(m_old_frame_energy_idx)); + save_item(NAME(m_old_frame_pitch_idx)); + save_item(NAME(m_old_frame_k_idx)); + save_item(NAME(m_old_zpar)); + save_item(NAME(m_old_uv_zpar)); +#endif + save_item(NAME(m_current_energy)); + save_item(NAME(m_current_pitch)); + save_item(NAME(m_current_k)); + + save_item(NAME(m_previous_energy)); + + save_item(NAME(m_subcycle)); + save_item(NAME(m_subc_reload)); + save_item(NAME(m_PC)); + save_item(NAME(m_IP)); + save_item(NAME(m_inhibit)); + save_item(NAME(m_uv_zpar)); + save_item(NAME(m_zpar)); + save_item(NAME(m_pitch_zero)); + save_item(NAME(m_pitch_count)); + + save_item(NAME(m_u)); + save_item(NAME(m_x)); + + save_item(NAME(m_RNG)); + save_item(NAME(m_excitation_data)); + + save_item(NAME(m_digital_select)); + + save_item(NAME(m_speech_rom_bitnum)); + + save_item(NAME(m_romclk_hack_timer_started)); + save_item(NAME(m_romclk_hack_state)); +} + +/********************************************************************************************** + + printbits helper function: takes a long int input and prints the resulting bits to stderr + +***********************************************************************************************/ + +#ifdef DEBUG_PARSE_FRAME_DUMP_BIN +static void printbits(long data, int num) +{ + int i; + for (i=(num-1); i>=0; i--) + fprintf(stderr,"%0ld", (data>>i)&1); +} +#endif +#ifdef DEBUG_PARSE_FRAME_DUMP_HEX +static void printbits(long data, int num) +{ + switch((num-1)&0xFC) + { + case 0: + fprintf(stderr,"%0lx", data); + break; + case 4: + fprintf(stderr,"%02lx", data); + break; + case 8: + fprintf(stderr,"%03lx", data); + break; + case 12: + fprintf(stderr,"%04lx", data); + break; + default: + fprintf(stderr,"%04lx", data); + break; + } +} +#endif + +/****************************************************************************************** + + extract_bits -- extract a specific number of bits from the VSM + +******************************************************************************************/ + +int tms5110_device::extract_bits(int count) +{ + int val = 0; + if (DEBUG_5110) logerror("requesting %d bits", count); + for (int i = 0; i < count; i++) + { + val = (val<<1) | new_int_read(); + if (DEBUG_5110) logerror("bit read: %d\n", val&1); + } + if (DEBUG_5110) logerror("returning: %02x\n", val); + return val; +} + + +void tms5110_device::perform_dummy_read() +{ + if (m_schedule_dummy_read) + { + int data = new_int_read(); + if (DEBUG_5110) logerror("TMS5110 performing dummy read; value read = %1i\n", data & 1); + m_schedule_dummy_read = FALSE; + } +} + + + + +/********************************************************************************************** + + tms5110_process -- fill the buffer with a specific number of samples + +***********************************************************************************************/ + +void tms5110_device::process(INT16 *buffer, unsigned int size) +{ + int buf_count=0; + int i, bitout; + INT32 this_sample; + + /* loop until the buffer is full or we've stopped speaking */ + while (size > 0) + { + if(m_TALKD) // speaking + { + /* if we're ready for a new frame to be applied, i.e. when IP=0, PC=12, Sub=1 + * (In reality, the frame was really loaded incrementally during the entire IP=0 + * PC=x time period, but it doesn't affect anything until IP=0 PC=12 happens) + */ + if ((m_IP == 0) && (m_PC == 12) && (m_subcycle == 1)) + { + // HACK for regression testing, be sure to comment out before release! + //m_RNG = 0x1234; + // end HACK + +#ifdef PERFECT_INTERPOLATION_HACK + /* remember previous frame energy, pitch, and coefficients */ + m_old_frame_energy_idx = m_new_frame_energy_idx; + m_old_frame_pitch_idx = m_new_frame_pitch_idx; + for (i = 0; i < m_coeff->num_k; i++) + m_old_frame_k_idx[i] = m_new_frame_k_idx[i]; +#endif + + /* Parse a new frame into the new_target_energy, new_target_pitch and new_target_k[] */ + parse_frame(); + + /* if the new frame is a stop frame, unset both TALK and SPEN (via TCON). TALKD remains active while the energy is ramping to 0. */ + if (NEW_FRAME_STOP_FLAG == 1) + { + m_TALK = m_SPEN = 0; + } + + /* in all cases where interpolation would be inhibited, set the inhibit flag; otherwise clear it. + * Interpolation inhibit cases: + * Old frame was voiced, new is unvoiced + * Old frame was silence/zero energy, new has non-zero energy + * Old frame was unvoiced, new is voiced + * Old frame was unvoiced, new frame is silence/zero energy (non-existent on tms51xx rev D and F (present and working on tms52xx, present but buggy on tms51xx rev A and B)) + */ + if ( ((OLD_FRAME_UNVOICED_FLAG == 0) && (NEW_FRAME_UNVOICED_FLAG == 1)) + || ((OLD_FRAME_UNVOICED_FLAG == 1) && (NEW_FRAME_UNVOICED_FLAG == 0)) + || ((OLD_FRAME_SILENCE_FLAG == 1) && (NEW_FRAME_SILENCE_FLAG == 0)) ) + //|| ((m_inhibit == 1) && (OLD_FRAME_UNVOICED_FLAG == 1) && (NEW_FRAME_SILENCE_FLAG == 1)) ) //TMS51xx INTERP BUG1 + //|| ((OLD_FRAME_UNVOICED_FLAG == 1) && (NEW_FRAME_SILENCE_FLAG == 1)) ) + m_inhibit = 1; + else // normal frame, normal interpolation + m_inhibit = 0; + +#ifdef DEBUG_GENERATION + /* Debug info for current parsed frame */ + fprintf(stderr, "OLDE: %d; NEWE: %d; OLDP: %d; NEWP: %d ", OLD_FRAME_SILENCE_FLAG, NEW_FRAME_SILENCE_FLAG, OLD_FRAME_UNVOICED_FLAG, NEW_FRAME_UNVOICED_FLAG); + fprintf(stderr,"Processing new frame: "); + if (m_inhibit == 0) + fprintf(stderr, "Normal Frame\n"); + else + fprintf(stderr,"Interpolation Inhibited\n"); + fprintf(stderr,"*** current Energy, Pitch and Ks = %04d, %04d, %04d, %04d, %04d, %04d, %04d, %04d, %04d, %04d, %04d, %04d\n",m_current_energy, m_current_pitch, m_current_k[0], m_current_k[1], m_current_k[2], m_current_k[3], m_current_k[4], m_current_k[5], m_current_k[6], m_current_k[7], m_current_k[8], m_current_k[9]); + fprintf(stderr,"*** target Energy(idx), Pitch, and Ks = %04d(%x),%04d, %04d, %04d, %04d, %04d, %04d, %04d, %04d, %04d, %04d, %04d\n", + (m_coeff->energytable[m_new_frame_energy_idx] * (1-m_zpar)), + m_new_frame_energy_idx, + (m_coeff->pitchtable[m_new_frame_pitch_idx] * (1-m_zpar)), + (m_coeff->ktable[0][m_new_frame_k_idx[0]] * (1-m_zpar)), + (m_coeff->ktable[1][m_new_frame_k_idx[1]] * (1-m_zpar)), + (m_coeff->ktable[2][m_new_frame_k_idx[2]] * (1-m_zpar)), + (m_coeff->ktable[3][m_new_frame_k_idx[3]] * (1-m_zpar)), + (m_coeff->ktable[4][m_new_frame_k_idx[4]] * (1-m_uv_zpar)), + (m_coeff->ktable[5][m_new_frame_k_idx[5]] * (1-m_uv_zpar)), + (m_coeff->ktable[6][m_new_frame_k_idx[6]] * (1-m_uv_zpar)), + (m_coeff->ktable[7][m_new_frame_k_idx[7]] * (1-m_uv_zpar)), + (m_coeff->ktable[8][m_new_frame_k_idx[8]] * (1-m_uv_zpar)), + (m_coeff->ktable[9][m_new_frame_k_idx[9]] * (1-m_uv_zpar)) ); +#endif + + } + else // Not a new frame, just interpolate the existing frame. + { + int inhibit_state = ((m_inhibit==1)&&(m_IP != 0)); // disable inhibit when reaching the last interp period, but don't overwrite the m_inhibit value +#ifdef PERFECT_INTERPOLATION_HACK + int samples_per_frame = m_subc_reload?175:266; // either (13 A cycles + 12 B cycles) * 7 interps for normal SPEAK/SPKEXT, or (13*2 A cycles + 12 B cycles) * 7 interps for SPKSLOW + //int samples_per_frame = m_subc_reload?200:304; // either (13 A cycles + 12 B cycles) * 8 interps for normal SPEAK/SPKEXT, or (13*2 A cycles + 12 B cycles) * 8 interps for SPKSLOW + int current_sample = (m_subcycle - m_subc_reload)+(m_PC*(3-m_subc_reload))+((m_subc_reload?25:38)*((m_IP-1)&7)); + //fprintf(stderr, "CS: %03d", current_sample); + // reset the current energy, pitch, etc to what it was at frame start + m_current_energy = (m_coeff->energytable[m_old_frame_energy_idx] * (1-m_old_zpar)); + m_current_pitch = (m_coeff->pitchtable[m_old_frame_pitch_idx] * (1-m_old_zpar)); + for (i = 0; i < m_coeff->num_k; i++) + m_current_k[i] = (m_coeff->ktable[i][m_old_frame_k_idx[i]] * (1-((i<4)?m_old_zpar:m_old_uv_zpar))); + // now adjust each value to be exactly correct for each of the samples per frame + if (m_IP != 0) // if we're still interpolating... + { + m_current_energy = (m_current_energy + (((m_coeff->energytable[m_new_frame_energy_idx] - m_current_energy)*(1-inhibit_state))*current_sample)/samples_per_frame)*(1-m_zpar); + m_current_pitch = (m_current_pitch + (((m_coeff->pitchtable[m_new_frame_pitch_idx] - m_current_pitch)*(1-inhibit_state))*current_sample)/samples_per_frame)*(1-m_zpar); + for (i = 0; i < m_coeff->num_k; i++) + m_current_k[i] = (m_current_k[i] + (((m_coeff->ktable[i][m_new_frame_k_idx[i]] - m_current_k[i])*(1-inhibit_state))*current_sample)/samples_per_frame)*(1-((i<4)?m_zpar:m_uv_zpar)); + } + else // we're done, play this frame for 1/8 frame. + { + if (m_subcycle == 2) m_pitch_zero = 0; // this reset happens around the second subcycle during IP=0 + m_current_energy = (m_coeff->energytable[m_new_frame_energy_idx] * (1-m_zpar)); + m_current_pitch = (m_coeff->pitchtable[m_new_frame_pitch_idx] * (1-m_zpar)); + for (i = 0; i < m_coeff->num_k; i++) + m_current_k[i] = (m_coeff->ktable[i][m_new_frame_k_idx[i]] * (1-((i<4)?m_zpar:m_uv_zpar))); + } +#else + //Updates to parameters only happen on subcycle '2' (B cycle) of PCs. + if (m_subcycle == 2) + { + switch(m_PC) + { + case 0: /* PC = 0, B cycle, write updated energy */ + if (m_IP==0) m_pitch_zero = 0; // this reset happens around the second subcycle during IP=0 + m_current_energy = (m_current_energy + (((m_coeff->energytable[m_new_frame_energy_idx] - m_current_energy)*(1-inhibit_state)) INTERP_SHIFT))*(1-m_zpar); + break; + case 1: /* PC = 1, B cycle, write updated pitch */ + m_current_pitch = (m_current_pitch + (((m_coeff->pitchtable[m_new_frame_pitch_idx] - m_current_pitch)*(1-inhibit_state)) INTERP_SHIFT))*(1-m_zpar); + break; + case 2: case 3: case 4: case 5: case 6: case 7: case 8: case 9: case 10: case 11: + /* PC = 2 through 11, B cycle, write updated K1 through K10 */ + m_current_k[m_PC-2] = (m_current_k[m_PC-2] + (((m_coeff->ktable[m_PC-2][m_new_frame_k_idx[m_PC-2]] - m_current_k[m_PC-2])*(1-inhibit_state)) INTERP_SHIFT))*(1-(((m_PC-2)<4)?m_zpar:m_uv_zpar)); + break; + case 12: /* PC = 12 */ + /* we should NEVER reach this point, PC=12 doesn't have a subcycle 2 */ + break; + } + } +#endif + } + + // calculate the output + if (OLD_FRAME_UNVOICED_FLAG == 1) + { + // generate unvoiced samples here + if (m_RNG & 1) + m_excitation_data = ~0x3F; /* according to the patent it is (either + or -) half of the maximum value in the chirp table, so either 01000000(0x40) or 11000000(0xC0)*/ + else + m_excitation_data = 0x40; + } + else /* (OLD_FRAME_UNVOICED_FLAG == 0) */ + { + // generate voiced samples here + /* US patent 4331836 Figure 14B shows, and logic would hold, that a pitch based chirp + * function has a chirp/peak and then a long chain of zeroes. + * The last entry of the chirp rom is at address 0b110011 (51d), the 52nd sample, + * and if the address reaches that point the ADDRESS incrementer is + * disabled, forcing all samples beyond 51d to be == 51d + */ + if (m_pitch_count >= 51) + m_excitation_data = (INT8)m_coeff->chirptable[51]; + else /*m_pitch_count < 51*/ + m_excitation_data = (INT8)m_coeff->chirptable[m_pitch_count]; + } + + // Update LFSR *20* times every sample (once per T cycle), like patent shows + for (i=0; i<20; i++) + { + bitout = ((m_RNG >> 12) & 1) ^ + ((m_RNG >> 3) & 1) ^ + ((m_RNG >> 2) & 1) ^ + ((m_RNG >> 0) & 1); + m_RNG <<= 1; + m_RNG |= bitout; + } + this_sample = lattice_filter(); /* execute lattice filter */ +#ifdef DEBUG_GENERATION_VERBOSE + //fprintf(stderr,"C:%01d; ",m_subcycle); + fprintf(stderr,"IP:%01d PC:%02d X:%04d E:%03d P:%03d Pc:%03d ",m_IP, m_PC, m_excitation_data, m_current_energy, m_current_pitch, m_pitch_count); + //fprintf(stderr,"X:%04d E:%03d P:%03d Pc:%03d ", m_excitation_data, m_current_energy, m_current_pitch, m_pitch_count); + for (i=0; i<10; i++) + fprintf(stderr,"K%d:%04d ", i+1, m_current_k[i]); + fprintf(stderr,"Out:%06d ", this_sample); +//#ifdef PERFECT_INTERPOLATION_HACK +// fprintf(stderr,"%d%d%d%d",m_old_zpar,m_zpar,m_old_uv_zpar,m_uv_zpar); +//#else +// fprintf(stderr,"x%dx%d",m_zpar,m_uv_zpar); +//#endif + fprintf(stderr,"\n"); +#endif + /* next, force result to 14 bits (since its possible that the addition at the final (k1) stage of the lattice overflowed) */ + while (this_sample > 16383) this_sample -= 32768; + while (this_sample < -16384) this_sample += 32768; + if (m_digital_select == 0) // analog SPK pin output is only 8 bits, with clipping + buffer[buf_count] = clip_analog(this_sample); + else // digital I/O pin output is 12 bits + { +#ifdef ALLOW_4_LSB + // input: ssss ssss ssss ssss ssnn nnnn nnnn nnnn + // N taps: ^ = 0x2000; + // output: ssss ssss ssss ssss snnn nnnn nnnn nnnN + buffer[buf_count] = (this_sample<<1)|((this_sample&0x2000)>>13); +#else + this_sample &= ~0xF; + // input: ssss ssss ssss ssss ssnn nnnn nnnn 0000 + // N taps: ^^ ^^^ = 0x3E00; + // output: ssss ssss ssss ssss snnn nnnn nnnN NNNN + buffer[buf_count] = (this_sample<<1)|((this_sample&0x3E00)>>9); +#endif + } + // Update all counts + + m_subcycle++; + if ((m_subcycle == 2) && (m_PC == 12)) // RESETF3 + { + /* Circuit 412 in the patent acts a reset, resetting the pitch counter to 0 + * if INHIBIT was true during the most recent frame transition. + * The exact time this occurs is betwen IP=7, PC=12 sub=0, T=t12 + * and m_IP = 0, PC=0 sub=0, T=t12, a period of exactly 20 cycles, + * which overlaps the time OLDE and OLDP are updated at IP=7 PC=12 T17 + * (and hence INHIBIT itself 2 t-cycles later). + * According to testing the pitch zeroing lasts approximately 2 samples. + * We set the zeroing latch here, and unset it on PC=1 in the generator. + */ + if ((m_IP == 7)&&(m_inhibit==1)) m_pitch_zero = 1; + if (m_IP == 7) // RESETL4 + { + // Latch OLDE and OLDP + //if (OLD_FRAME_SILENCE_FLAG) m_uv_zpar = 0; // TMS51xx INTERP BUG2 + OLD_FRAME_SILENCE_FLAG = NEW_FRAME_SILENCE_FLAG; // m_OLDE + OLD_FRAME_UNVOICED_FLAG = NEW_FRAME_UNVOICED_FLAG; // m_OLDP + /* if TALK was clear last frame, halt speech now, since TALKD (latched from TALK on new frame) just went inactive. */ +#ifdef DEBUG_GENERATION + if ((!m_TALK) && (!m_SPEN)) + fprintf(stderr,"tms5110_process: processing frame: TALKD = 0 caused by stop frame, halting speech.\n"); +#endif + m_TALKD = m_TALK; // TALKD is latched from TALK + if ((!m_TALK) && m_SPEN) m_TALK = 1; // TALK is only activated if it wasn't already active, if m_SPEN is active, and if we're in RESETL4 (which we are). + } + m_subcycle = m_subc_reload; + m_PC = 0; + m_IP++; + m_IP&=0x7; + } + else if (m_subcycle == 3) + { + m_subcycle = m_subc_reload; + m_PC++; + } + m_pitch_count++; + if ((m_pitch_count >= m_current_pitch)||(m_pitch_zero == 1)) m_pitch_count = 0; + m_pitch_count &= 0x1FF; + } + else // m_TALKD == 0 + { + m_subcycle++; + if ((m_subcycle == 2) && (m_PC == 12)) // RESETF3 + { + if (m_IP == 7) // RESETL4 + { + m_TALKD = m_TALK; // TALKD is latched from TALK + if ((!m_TALK) && m_SPEN) m_TALK = 1; // TALK is only activated if it wasn't already active, if m_SPEN is active, and if we're in RESETL4 (which we are). + } + m_subcycle = m_subc_reload; + m_PC = 0; + m_IP++; + m_IP&=0x7; + } + else if (m_subcycle == 3) + { + m_subcycle = m_subc_reload; + m_PC++; + } + buffer[buf_count] = -1; /* should be just -1; actual chip outputs -1 every idle sample; (cf note in data sheet, p 10, table 4) */ + } + buf_count++; + size--; + } +} + +/********************************************************************************************** + + clip_analog -- clips the 14 bit return value from the lattice filter to its final 10 bit value (-512 to 511), and upshifts/range extends this to 16 bits + +***********************************************************************************************/ + +static INT16 clip_analog(INT16 cliptemp) +{ + /* clipping, just like the patent shows: + * the top 10 bits of this result are visible on the digital output IO pin. + * next, if the top 3 bits of the 14 bit result are all the same, the lowest of those 3 bits plus the next 7 bits are the signed analog output, otherwise the low bits are all forced to match the inverse of the topmost bit, i.e.: + * 1x xxxx xxxx xxxx -> 0b10000000 + * 11 1bcd efgh xxxx -> 0b1bcdefgh + * 00 0bcd efgh xxxx -> 0b0bcdefgh + * 0x xxxx xxxx xxxx -> 0b01111111 + */ +#ifdef DEBUG_CLIP + if ((cliptemp > 2047) || (cliptemp < -2048)) fprintf(stderr,"clipping cliptemp to range; was %d\n", cliptemp); +#endif + if (cliptemp > 2047) cliptemp = 2047; + else if (cliptemp < -2048) cliptemp = -2048; + /* at this point the analog output is tapped */ +#ifdef ALLOW_4_LSB + // input: ssss snnn nnnn nnnn + // N taps: ^^^ ^ = 0x0780 + // output: snnn nnnn nnnn NNNN + return (cliptemp << 4)|((cliptemp&0x780)>>7); // upshift and range adjust +#else + cliptemp &= ~0xF; + // input: ssss snnn nnnn 0000 + // N taps: ^^^ ^^^^ = 0x07F0 + // P taps: ^ = 0x0400 + // output: snnn nnnn NNNN NNNP + return (cliptemp << 4)|((cliptemp&0x7F0)>>3)|((cliptemp&0x400)>>10); // upshift and range adjust +#endif +} + + +/********************************************************************************************** + + matrix_multiply -- does the proper multiply and shift + a is the k coefficient and is clamped to 10 bits (9 bits plus a sign) + b is the running result and is clamped to 14 bits. + output is 14 bits, but note the result LSB bit is always 1. + Because the low 4 bits of the result are trimmed off before + output, this makes almost no difference in the computation. + +**********************************************************************************************/ +static INT32 matrix_multiply(INT32 a, INT32 b) +{ + INT32 result; + while (a>511) { a-=1024; } + while (a<-512) { a+=1024; } + while (b>16383) { b-=32768; } + while (b<-16384) { b+=32768; } + result = ((a*b)>>9); /** TODO: this isn't technically right to the chip, which truncates the lowest result bit, but it causes glitches otherwise. **/ +#ifdef VERBOSE + if (result>16383) fprintf(stderr,"matrix multiplier overflowed! a: %x, b: %x, result: %x", a, b, result); + if (result<-16384) fprintf(stderr,"matrix multiplier underflowed! a: %x, b: %x, result: %x", a, b, result); +#endif + return result; +} + +/********************************************************************************************** + + lattice_filter -- executes one 'full run' of the lattice filter on a specific byte of + excitation data, and specific values of all the current k constants, and returns the + resulting sample. + +***********************************************************************************************/ + +INT32 tms5110_device::lattice_filter() +{ + // Lattice filter here + // Aug/05/07: redone as unrolled loop, for clarity - LN + /* Originally Copied verbatim from table I in US patent 4,209,804, now updated to be in same order as the actual chip does it, not that it matters. + notation equivalencies from table: + Yn(i) == m_u[n-1] + Kn = m_current_k[n-1] + bn = m_x[n-1] + */ + /* + int ep = matrix_multiply(m_previous_energy, (m_excitation_data<<6)); //Y(11) + m_u[10] = ep; + for (int i = 0; i < 10; i++) + { + int ii = 10-i; // for m = 10, this would be 11 - i, and since i is from 1 to 10, then ii ranges from 10 to 1 + //int jj = ii+1; // this variable, even on the fortran version, is never used. it probably was intended to be used on the two lines below the next one to save some redundant additions on each. + ep = ep - (((m_current_k[ii-1] * m_x[ii-1])>>9)|1); // subtract reflection from lower stage 'top of lattice' + m_u[ii-1] = ep; + m_x[ii] = m_x[ii-1] + (((m_current_k[ii-1] * ep)>>9)|1); // add reflection from upper stage 'bottom of lattice' + } + m_x[0] = ep; // feed the last section of the top of the lattice directly to the bottom of the lattice + */ + m_u[10] = matrix_multiply(m_previous_energy, (m_excitation_data<<6)); //Y(11) + m_u[9] = m_u[10] - matrix_multiply(m_current_k[9], m_x[9]); + m_u[8] = m_u[9] - matrix_multiply(m_current_k[8], m_x[8]); + m_u[7] = m_u[8] - matrix_multiply(m_current_k[7], m_x[7]); + m_u[6] = m_u[7] - matrix_multiply(m_current_k[6], m_x[6]); + m_u[5] = m_u[6] - matrix_multiply(m_current_k[5], m_x[5]); + m_u[4] = m_u[5] - matrix_multiply(m_current_k[4], m_x[4]); + m_u[3] = m_u[4] - matrix_multiply(m_current_k[3], m_x[3]); + m_u[2] = m_u[3] - matrix_multiply(m_current_k[2], m_x[2]); + m_u[1] = m_u[2] - matrix_multiply(m_current_k[1], m_x[1]); + m_u[0] = m_u[1] - matrix_multiply(m_current_k[0], m_x[0]); + m_x[9] = m_x[8] + matrix_multiply(m_current_k[8], m_u[8]); + m_x[8] = m_x[7] + matrix_multiply(m_current_k[7], m_u[7]); + m_x[7] = m_x[6] + matrix_multiply(m_current_k[6], m_u[6]); + m_x[6] = m_x[5] + matrix_multiply(m_current_k[5], m_u[5]); + m_x[5] = m_x[4] + matrix_multiply(m_current_k[4], m_u[4]); + m_x[4] = m_x[3] + matrix_multiply(m_current_k[3], m_u[3]); + m_x[3] = m_x[2] + matrix_multiply(m_current_k[2], m_u[2]); + m_x[2] = m_x[1] + matrix_multiply(m_current_k[1], m_u[1]); + m_x[1] = m_x[0] + matrix_multiply(m_current_k[0], m_u[0]); + m_x[0] = m_u[0]; + m_previous_energy = m_current_energy; +#ifdef DEBUG_LATTICE + int i; + fprintf(stderr,"V:%04d ", m_u[10]); + for (i = 9; i >= 0; i--) + { + fprintf(stderr,"Y%d:%04d ", i+1, m_u[i]); + fprintf(stderr,"b%d:%04d ", i+1, m_x[i]); + if ((i % 5) == 0) fprintf(stderr,"\n"); + } +#endif + return m_u[0]; +} + + + + +/****************************************************************************************** + + PDC_set -- set Processor Data Clock. Execute CTL_pins command on hi-lo transition. + +******************************************************************************************/ + +void tms5110_device::PDC_set(int data) +{ + if (m_PDC != (data & 0x1) ) + { + m_PDC = data & 0x1; + if (m_PDC == 0) /* toggling 1->0 processes command on CTL_pins */ + { +#ifdef DEBUG_COMMAND_DUMP + fprintf(stderr,"PDC falling edge(%02X): ",m_state); +#endif + /* first pdc toggles output, next toggles input */ + switch (m_state) + { + case CTL_STATE_INPUT: + /* continue */ + break; + case CTL_STATE_NEXT_TTALK_OUTPUT: +#ifdef DEBUG_COMMAND_DUMP + fprintf(stderr,"Switching CTL bus direction to output for Test Talk\n"); +#endif + m_state = CTL_STATE_TTALK_OUTPUT; + return; + case CTL_STATE_TTALK_OUTPUT: +#ifdef DEBUG_COMMAND_DUMP + fprintf(stderr,"Switching CTL bus direction back to input from Test Talk\n"); +#endif + m_state = CTL_STATE_INPUT; + return; + case CTL_STATE_NEXT_OUTPUT: +#ifdef DEBUG_COMMAND_DUMP + fprintf(stderr,"Switching CTL bus direction for Read Bit Buffer Output\n"); +#endif + m_state = CTL_STATE_OUTPUT; + return; + case CTL_STATE_OUTPUT: +#ifdef DEBUG_COMMAND_DUMP + fprintf(stderr,"Switching CTL bus direction back to input from Read Bit Buffer Output\n"); +#endif + m_state = CTL_STATE_INPUT; + return; + } + /* the only real commands we handle now are SPEAK and RESET */ + if (m_next_is_address) + { +#ifdef DEBUG_COMMAND_DUMP + fprintf(stderr,"Loading address nybble %02x to VSMs\n", m_CTL_pins); +#endif + m_next_is_address = FALSE; + m_address = m_address | ((m_CTL_pins & 0x0F)<<m_addr_bit); + m_addr_bit = (m_addr_bit + 4) % 12; + m_schedule_dummy_read = TRUE; + new_int_write_addr(m_CTL_pins & 0x0F); + } + else + { +#ifdef DEBUG_COMMAND_DUMP + fprintf(stderr,"Got command nybble %02x: ", m_CTL_pins); +#endif + switch (m_CTL_pins & 0xe) /*CTL1 - don't care*/ + { + case TMS5110_CMD_RESET: +#ifdef DEBUG_COMMAND_DUMP + fprintf(stderr,"RESET\n"); +#endif + perform_dummy_read(); + reset(); + break; + + case TMS5110_CMD_LOAD_ADDRESS: +#ifdef DEBUG_COMMAND_DUMP + fprintf(stderr,"LOAD ADDRESS\n"); +#endif + m_next_is_address = TRUE; + break; + + case TMS5110_CMD_OUTPUT: +#ifdef DEBUG_COMMAND_DUMP + fprintf(stderr,"OUTPUT (from read-bit buffer)\n"); +#endif + m_state = CTL_STATE_NEXT_OUTPUT; + break; + + case TMS5110_CMD_SPKSLOW: +#ifdef DEBUG_COMMAND_DUMP + fprintf(stderr,"SPKSLOW\n"); +#endif + perform_dummy_read(); + m_SPEN = 1; /* start immediately */ +#ifdef FAST_START_HACK + m_TALK = 1; +#endif + /* clear out variables before speaking */ + m_zpar = 1; // zero all the parameters + m_uv_zpar = 1; // zero k4-k10 as well + m_OLDE = 1; // 'silence/zpar' frames are zero energy + m_OLDP = 1; // 'silence/zpar' frames are zero pitch +#ifdef PERFECT_INTERPOLATION_HACK + m_old_zpar = 1; // zero all the old parameters + m_old_uv_zpar = 1; // zero old k4-k10 as well +#endif + m_subc_reload = 0; // SPKSLOW means this is 0 + break; + + case TMS5110_CMD_READ_BIT: +#ifdef DEBUG_COMMAND_DUMP + fprintf(stderr,"READ BIT\n"); +#endif + if (m_schedule_dummy_read) + perform_dummy_read(); + else + { +#ifdef DEBUG_COMMAND_DUMP + fprintf(stderr,"actually reading a bit now\n"); +#endif + m_CTL_buffer >>= 1; + m_CTL_buffer |= (extract_bits(1)<<3); + m_CTL_buffer &= 0xF; + } + break; + + case TMS5110_CMD_SPEAK: +#ifdef DEBUG_COMMAND_DUMP + fprintf(stderr,"SPEAK\n"); +#endif + perform_dummy_read(); + m_SPEN = 1; /* start immediately */ +#ifdef FAST_START_HACK + m_TALK = 1; +#endif + /* clear out variables before speaking */ + m_zpar = 1; // zero all the parameters + m_uv_zpar = 1; // zero k4-k10 as well + m_OLDE = 1; // 'silence/zpar' frames are zero energy + m_OLDP = 1; // 'silence/zpar' frames are zero pitch +#ifdef PERFECT_INTERPOLATION_HACK + m_old_zpar = 1; // zero all the old parameters + m_old_uv_zpar = 1; // zero old k4-k10 as well +#endif + m_subc_reload = 1; // SPEAK means this is 1 + break; + + case TMS5110_CMD_READ_BRANCH: +#ifdef DEBUG_COMMAND_DUMP + fprintf(stderr,"READ AND BRANCH\n"); +#endif + new_int_write(0,1,1,0); + new_int_write(1,1,1,0); + new_int_write(0,1,1,0); + new_int_write(0,0,0,0); + new_int_write(1,0,0,0); + new_int_write(0,0,0,0); + m_schedule_dummy_read = FALSE; + break; + + case TMS5110_CMD_TEST_TALK: +#ifdef DEBUG_COMMAND_DUMP + fprintf(stderr,"TEST TALK\n"); +#endif + m_state = CTL_STATE_NEXT_TTALK_OUTPUT; + break; + + default: +#ifdef DEBUG_COMMAND_DUMP + fprintf(stderr,"tms5110.c: unknown command: 0x%02x\n", m_CTL_pins); +#endif + break; + } + + } + } + } +} + + + +/****************************************************************************************** + + parse_frame -- parse a new frame's worth of data; returns 0 if not enough bits in buffer + +******************************************************************************************/ + +void tms5110_device::parse_frame() +{ + int i, rep_flag; +#ifdef PERFECT_INTERPOLATION_HACK + m_old_uv_zpar = m_uv_zpar; + m_old_zpar = m_zpar; +#endif + // since we're parsing a frame, we must be talking, so clear zpar here + // before we start parsing a frame, the P=0 and E=0 latches were both reset by RESETL4, so clear m_uv_zpar here + m_uv_zpar = m_zpar = 0; + + // attempt to extract the energy index + m_new_frame_energy_idx = extract_bits(m_coeff->energy_bits); +#ifdef DEBUG_PARSE_FRAME_DUMP + printbits(m_new_frame_energy_idx,m_coeff->energy_bits); + fprintf(stderr," "); +#endif + + // if the energy index is 0 or 15, we're done + if ((m_new_frame_energy_idx == 0) || (m_new_frame_energy_idx == 15)) + return; + + rep_flag = extract_bits(1); +#ifdef DEBUG_PARSE_FRAME_DUMP + printbits(rep_flag, 1); + fprintf(stderr," "); +#endif + + m_new_frame_pitch_idx = extract_bits(m_coeff->pitch_bits); +#ifdef DEBUG_PARSE_FRAME_DUMP + printbits(m_new_frame_pitch_idx,m_coeff->pitch_bits); + fprintf(stderr," "); +#endif + // if the new frame is unvoiced, be sure to zero out the k5-k10 parameters + m_uv_zpar = NEW_FRAME_UNVOICED_FLAG; + // if this is a repeat frame, just do nothing, it will reuse the old coefficients + if (rep_flag) + return; + + // extract first 4 K coefficients + for (i = 0; i < 4; i++) + { + m_new_frame_k_idx[i] = extract_bits(m_coeff->kbits[i]); +#ifdef DEBUG_PARSE_FRAME_DUMP + printbits(m_new_frame_k_idx[i],m_coeff->kbits[i]); + fprintf(stderr," "); +#endif + } + + // if the pitch index was zero, we only need 4 K's... + if (m_new_frame_pitch_idx == 0) + { + /* and the rest of the coefficients are zeroed, but that's done in the generator code */ + return; + } + + // If we got here, we need the remaining 6 K's + for (i = 4; i < m_coeff->num_k; i++) + { + m_new_frame_k_idx[i] = extract_bits(m_coeff->kbits[i]); +#ifdef DEBUG_PARSE_FRAME_DUMP + printbits(m_new_frame_k_idx[i],m_coeff->kbits[i]); + fprintf(stderr," "); +#endif + } +#ifdef VERBOSE + logerror("Parsed a frame successfully in ROM\n"); +#endif + return; +} + + +#if 0 +/*This is an example word TEN taken from the TMS5110A datasheet*/ +static const unsigned int example_word_TEN[619]={ +/* 1*/1,0,0,0, 0, 0,0,0,0,0, 1,1,0,0,0, 0,0,0,1,0, 0,1,1,1, 0,1,0,1, +/* 2*/1,0,0,0, 0, 0,0,0,0,0, 1,0,0,1,0, 0,0,1,1,0, 0,0,1,1, 0,1,0,1, +/* 3*/1,1,0,0, 0, 1,0,0,0,0, 1,0,1,0,0, 0,1,0,1,0, 0,1,0,0, 1,0,1,0, 1,0,0,0, 1,0,0,1, 0,1,0,1, 0,0,1, 0,1,0, 0,1,1, +/* 4*/1,1,1,0, 0, 0,1,1,1,1, 1,0,1,0,1, 0,1,1,1,0, 0,1,0,1, 0,1,1,1, 0,1,1,1, 1,0,1,1, 1,0,1,0, 0,1,1, 0,1,0, 0,1,1, +/* 5*/1,1,1,0, 0, 1,0,0,0,0, 1,0,1,0,0, 0,1,1,1,0, 0,1,0,1, 1,0,1,0, 1,0,0,0, 1,1,0,0, 1,0,1,1, 1,0,0, 0,1,0, 0,1,1, +/* 6*/1,1,1,0, 0, 1,0,0,0,1, 1,0,1,0,1, 0,1,1,0,1, 0,1,1,0, 0,1,1,1, 0,1,1,1, 1,0,1,0, 1,0,1,0, 1,1,0, 0,0,1, 1,0,0, +/* 7*/1,1,1,0, 0, 1,0,0,1,0, 1,0,1,1,1, 0,1,1,1,0, 0,1,1,1, 0,1,1,1, 0,1,0,1, 0,1,1,0, 1,0,0,1, 1,1,0, 0,1,0, 0,1,1, +/* 8*/1,1,1,0, 1, 1,0,1,0,1, +/* 9*/1,1,1,0, 0, 1,1,0,0,1, 1,0,1,1,1, 0,1,0,1,1, 1,0,1,1, 0,1,1,1, 0,1,0,0, 1,0,0,0, 1,0,0,0, 1,1,0, 0,1,1, 0,1,1, +/*10*/1,1,0,1, 0, 1,1,0,1,0, 1,0,1,0,1, 0,1,1,0,1, 1,0,1,1, 0,1,0,1, 0,1,0,0, 1,0,0,0, 1,0,1,0, 1,1,0, 0,1,0, 1,0,0, +/*11*/1,0,1,1, 0, 1,1,0,1,1, 1,0,0,1,1, 1,0,0,1,0, 0,1,1,0, 0,0,1,1, 0,1,0,1, 1,0,0,1, 1,0,1,0, 1,0,0, 0,1,1, 0,1,1, +/*12*/1,0,0,0, 0, 1,1,1,0,0, 1,0,0,1,1, 0,0,1,1,0, 0,1,0,0, 0,1,1,0, 1,1,0,0, 0,1,0,1, 1,0,0,0, 1,0,0, 0,1,0, 1,0,1, +/*13*/0,1,1,1, 1, 1,1,1,0,1, +/*14*/0,1,1,1, 0, 1,1,1,1,0, 1,0,0,1,1, 0,0,1,1,1, 0,1,0,1, 0,1,0,1, 1,1,0,0, 0,1,1,1, 1,0,0,0, 1,0,0, 0,1,0, 1,0,1, +/*15*/0,1,1,0, 0, 1,1,1,1,0, 1,0,1,0,1, 0,0,1,1,0, 0,1,0,0, 0,0,1,1, 1,1,0,0, 1,0,0,1, 0,1,1,1, 1,0,1, 0,1,0, 1,0,1, +/*16*/1,1,1,1 +}; +#endif + + +//------------------------------------------------- +// device_start - device-specific startup +//------------------------------------------------- + +void tms5110_device::device_start() +{ + m_table = region()->base(); + + set_variant(TMS5110_IS_TMS5110A); + + /* resolve lines */ + m_m0_cb.resolve(); + m_m1_cb.resolve(); + m_romclk_cb.resolve(); + m_addr_cb.resolve(); + m_data_cb.resolve(); + + /* initialize a stream */ + m_stream = machine().sound().stream_alloc(*this, 0, 1, clock() / 80); + + m_state = CTL_STATE_INPUT; /* most probably not defined */ + m_romclk_hack_timer = timer_alloc(0); + + register_for_save_states(); +} + +//------------------------------------------------- +// device_start - device-specific startup +//------------------------------------------------- + +void tms5100_device::device_start() +{ + tms5110_device::device_start(); + set_variant(TMS5110_IS_TMC0281); +} + +//------------------------------------------------- +// device_start - device-specific startup +//------------------------------------------------- + +void tmc0281_device::device_start() +{ + tms5110_device::device_start(); + set_variant(TMS5110_IS_TMC0281); +} + +//------------------------------------------------- +// device_start - device-specific startup +//------------------------------------------------- + +void tms5100a_device::device_start() +{ + tms5110_device::device_start(); + set_variant(TMS5110_IS_TMC0281D); +} + +//------------------------------------------------- +// device_start - device-specific startup +//------------------------------------------------- + +void tmc0281d_device::device_start() +{ + tms5110_device::device_start(); + set_variant(TMS5110_IS_TMC0281D); +} + +//------------------------------------------------- +// device_start - device-specific startup +//------------------------------------------------- + +void cd2801_device::device_start() +{ + tms5110_device::device_start(); + set_variant(TMS5110_IS_CD2801); +} + +//------------------------------------------------- +// device_start - device-specific startup +//------------------------------------------------- + +void cd2802_device::device_start() +{ + tms5110_device::device_start(); + set_variant(TMS5110_IS_CD2802); +} + +//------------------------------------------------- +// device_start - device-specific startup +//------------------------------------------------- + +void tms5110a_device::device_start() +{ + tms5110_device::device_start(); + set_variant(TMS5110_IS_TMS5110A); +} + +//------------------------------------------------- +// device_start - device-specific startup +//------------------------------------------------- + +void m58817_device::device_start() +{ + tms5110_device::device_start(); + set_variant(TMS5110_IS_M58817); +} + + +//------------------------------------------------- +// device_reset - device-specific reset +//------------------------------------------------- + +void tms5110_device::device_reset() +{ + m_digital_select = FORCE_DIGITAL; // assume analog output + + /* initialize the chip state */ + m_SPEN = m_TALK = m_TALKD = 0; + m_CTL_pins = 0; + m_RNG = 0x1fff; + m_CTL_buffer = 0; + m_PDC = 0; + + /* initialize the energy/pitch/k states */ +#ifdef PERFECT_INTERPOLATION_HACK + m_old_frame_energy_idx = m_old_frame_pitch_idx = 0; + memset(m_old_frame_k_idx, 0, sizeof(m_old_frame_k_idx)); + m_old_zpar = m_old_uv_zpar = 0; +#endif + m_new_frame_energy_idx = m_current_energy = m_previous_energy = 0; + m_new_frame_pitch_idx = m_current_pitch = 0; + m_zpar = m_uv_zpar = 0; + memset(m_new_frame_k_idx, 0, sizeof(m_new_frame_k_idx)); + memset(m_current_k, 0, sizeof(m_current_k)); + + /* initialize the sample generators */ + m_inhibit = 1; + m_subcycle = m_pitch_count = m_pitch_zero = m_PC = m_zpar = 0; + m_subc_reload = 1; + m_OLDE = m_OLDP = 1; + m_IP = 0; + m_RNG = 0x1FFF; + memset(m_u, 0, sizeof(m_u)); + memset(m_x, 0, sizeof(m_x)); + if (m_table != NULL) + { + /* legacy interface */ + m_schedule_dummy_read = TRUE; + } + else + { + /* no dummy read! This makes bagman and ad2083 speech fail + * with the new cycle and transition exact interfaces + */ + m_schedule_dummy_read = FALSE; + } + m_next_is_address = FALSE; + m_address = 0; + m_addr_bit = 0; +} + + + +/****************************************************************************** + + tms5110_ctl_w -- write Control Command to the sound chip +commands like Speech, Reset, etc., are loaded into the chip via the CTL pins + +******************************************************************************/ + +WRITE8_MEMBER( tms5110_device::ctl_w ) +{ + /* bring up to date first */ + m_stream->update(); + m_CTL_pins = data & 0xf; +} + + +/****************************************************************************** + + tms5110_pdc_w -- write to PDC pin on the sound chip + +******************************************************************************/ + +WRITE_LINE_MEMBER( tms5110_device::pdc_w ) +{ + /* bring up to date first */ + m_stream->update(); + PDC_set(state); +} + + + +/****************************************************************************** + + tms5110_ctl_r -- read from the VSP (51xx) control bus + The CTL bus can be in three states: + 1. Test talk output: + bit 0 = TS - Talk Status is active (high) when the VSP is processing speech data. + Talk Status goes active at the initiation of a SPEAK command. + It goes inactive (low) when the stop code (Energy=1111) is processed, or + immediately(?????? not TMS5110) by a RESET command. + other bits may be open bus + 2. 'read bit' buffer contents output: + bits 0-3 = buffer contents + 3. Input 'open bus' state: + bits 0-3 = high-z + +******************************************************************************/ + +READ8_MEMBER( tms5110_device::ctl_r ) +{ + /* bring up to date first */ + m_stream->update(); + if (m_state == CTL_STATE_TTALK_OUTPUT) + { + if (DEBUG_5110) logerror("Status read while outputting Test Talk (status=%2d)\n", TALK_STATUS); + return (TALK_STATUS << 0); /*CTL1 = still talking ? */ + } + else if (m_state == CTL_STATE_OUTPUT) + { + if (DEBUG_5110) logerror("Status read while outputting buffer (buffer=%2d)\n", m_CTL_buffer); + return (m_CTL_buffer); + } + else // we're reading with the bus in input mode! just return the last thing written to the bus + { + if (DEBUG_5110) logerror("Status read (not in output mode), returning %02x\n", m_CTL_pins); + return (m_CTL_pins); + } +} + +READ8_MEMBER( m58817_device::status_r ) +{ + /* bring up to date first */ + m_stream->update(); + return (TALK_STATUS << 0); /*CTL1 = still talking ? */ +} + +/****************************************************************************** + + tms5110_romclk_hack_r -- read status of romclk + +******************************************************************************/ + +void tms5110_device::device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr) +{ + m_romclk_hack_state = !m_romclk_hack_state; +} + +READ8_MEMBER( tms5110_device::romclk_hack_r ) +{ + /* bring up to date first */ + m_stream->update(); + + /* create and start timer if necessary */ + if (!m_romclk_hack_timer_started) + { + m_romclk_hack_timer_started = TRUE; + m_romclk_hack_timer->adjust(attotime::from_hz(clock() / 40), 0, attotime::from_hz(clock() / 40)); + } + return m_romclk_hack_state; +} + + +/****************************************************************************** + + tms5110_update -- update the sound chip so that it is in sync with CPU execution + +******************************************************************************/ + +//------------------------------------------------- +// sound_stream_update - handle a stream update +//------------------------------------------------- + +void tms5110_device::sound_stream_update(sound_stream &stream, stream_sample_t **inputs, stream_sample_t **outputs, int samples) +{ + INT16 sample_data[MAX_SAMPLE_CHUNK]; + stream_sample_t *buffer = outputs[0]; + + /* loop while we still have samples to generate */ + while (samples) + { + int length = (samples > MAX_SAMPLE_CHUNK) ? MAX_SAMPLE_CHUNK : samples; + int index; + + /* generate the samples and copy to the target buffer */ + process(sample_data, length); + for (index = 0; index < length; index++) + *buffer++ = sample_data[index]; + + /* account for the samples */ + samples -= length; + } +} + + + +/****************************************************************************** + + tms5110_set_frequency -- adjusts the playback frequency + TODO: kill this function; we should be adjusting the tms51xx device clock itself, + not setting it here! + +******************************************************************************/ + +void tms5110_device::set_frequency(int frequency) +{ + m_stream->set_sample_rate(frequency / 80); +} + + + +/* from here on in this file is a VSM 'Emulator' circuit used by bagman and ad2083 */ + +/* + * + * General Interface design (Bagman) + * + * +------------------------------------------------------------------------+ + * | | + * +-------------+ | +-------------+ +-------------+ +-------------+ | + * | TMS5100 | | | Counters | | Rom(s) | | Decoder | | + * | ADD8 |<--+ | LS393s | | | | | | + * | | | | | | | Out |--+ + * | M0 |---+ | Address |======>| Address | | IN1 | + * | | | | | | Data |======>| ... | + * M | | +---------->| Clk | | | | IN8 | + * A-->| CTL1 | | | | | | | + * P-->| CTL2 | +--->| Reset | | | | | + * P-->| CTL3 | | | | | | | A B C | + * E-->| CTL4 | | +-------------+ +-------------+ +-------------+ + * D-->| PDC | | ^ ^ ^ + * | | +-------------------------------------------------+ | | | + * | | | Bit Select + * | ROMCLK |---+ +-------------+ +-------------+ | + * | | | | Counter | | PROM | | + * +-------------+ | | LS393 | | D1 | M --+ Reset Bit + * | | Q0 |------>| A0 | A + * +---------->| Clk Q1 |------>| A1 | P ==> CTL1 ... CTL4 + * | Q2 |------>| A2 | P --> PDC + * | Reset Q3 |------>| A3 | E --+ Stop Bit + * | | +-->| A4 D8 | D | + * +-------------+ | +-------------+ | + * | | + * | +---+ | + * | | |<-----------------+ + * +---| & | + * | |<-------- Enable + * +---+ + * + */ + +/****************************************************************************** + + device_start( tmsprom ) -- allocate buffers initialize + +******************************************************************************/ + +void tmsprom_device::register_for_save_states() +{ + save_item(NAME(m_address)); + save_item(NAME(m_base_address)); + save_item(NAME(m_bit)); + save_item(NAME(m_enable)); + save_item(NAME(m_prom_cnt)); + save_item(NAME(m_m0)); +} + +void tmsprom_device::update_prom_cnt() +{ + UINT8 prev_val = m_prom[m_prom_cnt] | 0x0200; + if (m_enable && (prev_val & (1<<m_stop_bit))) + m_prom_cnt |= 0x10; + else + m_prom_cnt &= 0x0f; +} + +void tmsprom_device::device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr) +{ + /* only 16 bytes needed ... The original dump is bad. This + * is what is needed to get speech to work. The prom data has + * been updated and marked as BAD_DUMP. The information below + * is given for reference once another dump should surface. + * + * static const int prom[16] = {0x00, 0x00, 0x02, 0x00, 0x00, 0x02, 0x00, 0x00, + * 0x02, 0x00, 0x40, 0x00, 0x04, 0x06, 0x04, 0x84 }; + */ + UINT16 ctrl; + + update_prom_cnt(); + ctrl = (m_prom[m_prom_cnt] | 0x200); + + //if (m_enable && m_prom_cnt < 0x10) printf("ctrl %04x, enable %d cnt %d\n", ctrl, m_enable, m_prom_cnt); + m_prom_cnt = ((m_prom_cnt + 1) & 0x0f) | (m_prom_cnt & 0x10); + + if (ctrl & (1 << m_reset_bit)) + m_address = 0; + + m_ctl_cb((offs_t)0, BITSWAP8(ctrl,0,0,0,0,m_ctl8_bit, + m_ctl4_bit,m_ctl2_bit,m_ctl1_bit)); + + m_pdc_cb((ctrl >> m_pdc_bit) & 0x01); +} + +//------------------------------------------------- +// device_start - device-specific startup +//------------------------------------------------- + +void tmsprom_device::device_start() +{ + /* resolve lines */ + m_pdc_cb.resolve_safe(); + m_ctl_cb.resolve_safe(); + + m_rom = region()->base(); + assert_always(m_rom != NULL, "Error creating TMSPROM chip: No rom region found"); + m_prom = owner()->memregion(m_prom_region)->base(); + assert_always(m_prom != NULL, "Error creating TMSPROM chip: No prom region found"); + + m_romclk_timer = timer_alloc(0); + m_romclk_timer->adjust(attotime::zero, 0, attotime::from_hz(clock())); + + m_bit = 0; + m_base_address = 0; + m_address = 0; + m_enable = 0; + m_m0 = 0; + m_prom_cnt = 0; + + register_for_save_states(); +} + +WRITE_LINE_MEMBER( tmsprom_device::m0_w ) +{ + /* falling edge counts */ + if (m_m0 && !state) + { + m_address += 1; + m_address &= (m_rom_size-1); + } + m_m0 = state; +} + +READ_LINE_MEMBER( tmsprom_device::data_r ) +{ + return (m_rom[m_base_address + m_address] >> m_bit) & 0x01; +} + + +WRITE8_MEMBER( tmsprom_device::rom_csq_w ) +{ + if (!data) + m_base_address = offset * m_rom_size; +} + +WRITE8_MEMBER( tmsprom_device::bit_w ) +{ + m_bit = data; +} + +WRITE_LINE_MEMBER( tmsprom_device::enable_w ) +{ + if (state != m_enable) + { + m_enable = state; + update_prom_cnt(); + + /* the following is needed for ad2084. + * It is difficult to derive the actual connections from + * pcb pictures but the reset pin of the LS393 driving + * the prom address line is connected somewhere. + * + * This does not affect bagman. It just simulates that a + * write to ads3 is always happening when the four lower + * counter bits are 0! + */ + if (state) + m_prom_cnt &= 0x10; + } +} + + +/*------------------------------------------------- + TMS 5110 device definition +-------------------------------------------------*/ + +const device_type TMS5110 = &device_creator<tms5110_device>; + +tms5110_device::tms5110_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock) + : device_t(mconfig, TMS5110, "TMS5110", tag, owner, clock, "tms5110", __FILE__), + device_sound_interface(mconfig, *this), + m_m0_cb(*this), + m_m1_cb(*this), + m_addr_cb(*this), + m_data_cb(*this), + m_romclk_cb(*this) +{ +} + +tms5110_device::tms5110_device(const machine_config &mconfig, device_type type, const char *name, const char *tag, device_t *owner, UINT32 clock, const char *shortname, const char *source) + : device_t(mconfig, type, name, tag, owner, clock, shortname, source), + device_sound_interface(mconfig, *this), + m_m0_cb(*this), + m_m1_cb(*this), + m_addr_cb(*this), + m_data_cb(*this), + m_romclk_cb(*this) +{ +} + + +const device_type TMS5100 = &device_creator<tms5100_device>; + +tms5100_device::tms5100_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock) + : tms5110_device(mconfig, TMS5100, "TMS5100", tag, owner, clock, "tms5100", __FILE__) +{ +} + +const device_type TMC0281 = &device_creator<tmc0281_device>; + +tmc0281_device::tmc0281_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock) + : tms5110_device(mconfig, TMC0281, "TMC0281", tag, owner, clock, "tmc0281", __FILE__) +{ +} + +const device_type TMS5100A = &device_creator<tms5100a_device>; + +tms5100a_device::tms5100a_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock) + : tms5110_device(mconfig, TMS5100A, "TMS5100A", tag, owner, clock, "tms5100a", __FILE__) +{ +} + +const device_type TMC0281D = &device_creator<tmc0281d_device>; + +tmc0281d_device::tmc0281d_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock) + : tms5110_device(mconfig, TMC0281D, "TMC0281D", tag, owner, clock, "tmc0281d", __FILE__) +{ +} + +const device_type CD2801 = &device_creator<cd2801_device>; + +cd2801_device::cd2801_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock) + : tms5110_device(mconfig, CD2801, "CD2801", tag, owner, clock, "cd2801", __FILE__) +{ +} + +const device_type CD2802 = &device_creator<cd2802_device>; + +cd2802_device::cd2802_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock) + : tms5110_device(mconfig, CD2802, "CD2802", tag, owner, clock, "cd2802", __FILE__) +{ +} + +const device_type TMS5110A = &device_creator<tms5110a_device>; + +tms5110a_device::tms5110a_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock) + : tms5110_device(mconfig, TMS5110A, "TMS5110A", tag, owner, clock, "tms5110a", __FILE__) +{ +} + +const device_type M58817 = &device_creator<m58817_device>; + +m58817_device::m58817_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock) + : tms5110_device(mconfig, M58817, "M58817", tag, owner, clock, "m58817", __FILE__) +{ +} + + +const device_type TMSPROM = &device_creator<tmsprom_device>; + +tmsprom_device::tmsprom_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock) + : device_t(mconfig, TMSPROM, "TMSPROM", tag, owner, clock, "tmsprom", __FILE__), + m_prom_region(""), + m_rom_size(0), + m_pdc_bit(0), + m_ctl1_bit(0), + m_ctl2_bit(0), + m_ctl4_bit(0), + m_ctl8_bit(0), + m_reset_bit(0), + m_stop_bit(0), + m_pdc_cb(*this), + m_ctl_cb(*this) +{ +} |