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multipcm: Correct address bus width

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This commit is contained in:
AJR 2022-10-11 22:54:52 -04:00
parent 2b161343f8
commit 50dbca94e7
2 changed files with 3 additions and 3 deletions
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4
src/devices/sound/multipcm.cpp
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@ -24,8 +24,8 @@
* The first 3 bytes are the offset into the file (big endian). (0, 1, 2). * The first 3 bytes are the offset into the file (big endian). (0, 1, 2).
* Bit 23 is unknown. * Bit 23 is unknown.
* Bit 22 is the sample format flag: 0 for 8-bit linear, 1 for 12-bit linear. * Bit 22 is the sample format flag: 0 for 8-bit linear, 1 for 12-bit linear.
* Bit 21 is used by the MU5 on some samples for as-yet unknown purposes. * Bit 21 is used by the MU5 on some samples for as-yet unknown purposes. (YMW-258-F has 22 address pins.)
* The next 2 are the loop start point, in samples (big endian) (3, 4) * The next 2 bytes 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 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) * The next byte is LFO freq + depth (copied to reg 6 ?) (7, 8)
* The next 3 are envelope params (Attack, Decay1 and 2, sustain level, release, Key Rate Scaling) (9, 10, 11) * The next 3 are envelope params (Attack, Decay1 and 2, sustain level, release, Key Rate Scaling) (9, 10, 11)

2
src/devices/sound/multipcm.h
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@ -15,7 +15,7 @@
class multipcm_device : public device_t, class multipcm_device : public device_t,
public device_sound_interface, public device_sound_interface,
public device_rom_interface<24> public device_rom_interface<22>
{ {
public: public:
multipcm_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock); multipcm_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);