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multipcm: remove leftover logerror

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hap 2020-11-16 19:12:37 +01:00
parent 55460f0840
commit f14e1794d7
1 changed files with 4 additions and 6 deletions
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10
src/devices/sound/multipcm.cpp
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@ -13,7 +13,7 @@
* 3: MSB of pitch (ooooppppppppppxx) (o=octave (4 bit signed), p=pitch (10 bits), x=unused?
* 4: voice control: top bit = 1 for key on, 0 for key off
* 5: bit 0: 0: interpolate volume changes, 1: direct set volume,
bits 1-7 = volume attenuate (0=max, 7f=min)
* bits 1-7 = volume attenuate (0=max, 7f=min)
* 6: LFO frequency + Phase LFO depth
* 7: Amplitude LFO size
*
@ -22,8 +22,8 @@
* This sample format might be derived from the one used by the older YM7138 'GEW6' chip.
*
* The first 3 bytes are the offset into the file (big endian). (0, 1, 2).
Bit 23 is the sample format flag: 0 for 8-bit linear, 1 for 12-bit linear.
Bits 21 and 22 are used by the MU5 on some samples for as-yet unknown purposes.
* Bit 23 is the sample format flag: 0 for 8-bit linear, 1 for 12-bit linear.
* Bits 21 and 22 are used by the MU5 on some samples for as-yet unknown purposes.
* The next 2 are the loop start point, in samples (big endian) (3, 4)
* The next 2 are the 2's complement negation of of the total number of samples (big endian) (5, 6)
* The next byte is LFO freq + depth (copied to reg 6 ?) (7, 8)
@ -31,8 +31,7 @@
* The next byte is Amplitude LFO size (copied to reg 7 ?)
*
* TODO
* - http://dtech.lv/techarticles_yamaha_chips.html indicates FM and 12-bit sample support,
* which we don't have yet.
* - http://dtech.lv/techarticles_yamaha_chips.html indicates FM support, which we don't have yet.
*/
#include "emu.h"
@ -83,7 +82,6 @@ void multipcm_device::init_sample(sample_t *sample, uint32_t index)
sample->m_start = (read_byte(address) << 16) | (read_byte(address + 1) << 8) | read_byte(address + 2);
sample->m_format = (sample->m_start>>20) & 0xfe;
logerror("format = %02x\n", sample->m_format);
sample->m_start &= 0x3fffff;
sample->m_loop = (read_byte(address + 3) << 8) | read_byte(address + 4);
sample->m_end = 0xffff - ((read_byte(address + 5) << 8) | read_byte(address + 6));