summaryrefslogtreecommitdiffstatshomepage
path: root/src/devices/sound/vrender0.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'src/devices/sound/vrender0.cpp')
-rw-r--r--src/devices/sound/vrender0.cpp86
1 files changed, 43 insertions, 43 deletions
diff --git a/src/devices/sound/vrender0.cpp b/src/devices/sound/vrender0.cpp
index c302905c76a..833acdc46bb 100644
--- a/src/devices/sound/vrender0.cpp
+++ b/src/devices/sound/vrender0.cpp
@@ -7,11 +7,11 @@
VRENDER ZERO
AUDIO EMULATION
- TODO
- - Envelope, Interrupt functions aren't verified from real hardware behavior.
- - Reverb, Pingpong/Reversed loop, Most of Channel/Overall control registers
- are Not implemented
- - Sample Rate is unverified
+ TODO
+ - Envelope, Interrupt functions aren't verified from real hardware behavior.
+ - Reverb, Pingpong/Reversed loop, Most of Channel/Overall control registers
+ are Not implemented
+ - Sample Rate is unverified
*************************************************************************************/
static inline s32 sign_ext(s32 val, s32 bit)
@@ -91,10 +91,10 @@ void vr0sound_device::sound_map(address_map &map)
-------- xxxxxxxx ChnClkNum (Clock Number per Channel)
602 x------- -------- RS (Run Sound)
-------- --x----- TM (Texture Memory)
- -------- ---x---- RE (Reverb Enable)
- -------- -----x-- CW (32bit Adder Wait)
- -------- ------x- AW (16bit Adder Wait)
- -------- -------x MW (Multipler Wait)
+ -------- ---x---- RE (Reverb Enable)
+ -------- -----x-- CW (32bit Adder Wait)
+ -------- ------x- AW (16bit Adder Wait)
+ -------- -------x MW (Multipler Wait)
*/
map(0x404, 0x407).rw(FUNC(vr0sound_device::status_r), FUNC(vr0sound_device::status_w));
@@ -281,12 +281,12 @@ void vr0sound_device::revfactor_w(offs_t offset, u16 data, u16 mem_mask)
}
/*
- Buffer Address
- 1 0
- fedcba9876543210 fedcba9876543210
- ----------0xxxxx x--------------- BufferSAddr
- ---------------- -xxx------------ Buffer Select
- ---------------- ----xxxxxxxxxxxx Buffer Pointer
+ Buffer Address
+ 1 0
+ fedcba9876543210 fedcba9876543210
+ ----------0xxxxx x--------------- BufferSAddr
+ ---------------- -xxx------------ Buffer Select
+ ---------------- ----xxxxxxxxxxxx Buffer Pointer
*/
u16 vr0sound_device::buffersaddr_r(offs_t offset)
@@ -362,39 +362,39 @@ void vr0sound_device::ctrl_w(offs_t offset, u16 data, u16 mem_mask)
/*
Channel Parameter Register (32 bytes for each channels)
- fedcba98 76543210
-00 xxxxxxxx xxxxxxxx CurSAddr (15:0)
-02 xxxxxxxx xxxxxxxx CurSAddr (31:16)
-04 xxxxxxxx xxxxxxxx EnvVol (15:0)
-06 -11x---- -------- Loop Direction(LD)
- -11-xxxx -------- EnvStage
- -------- xxxxxxxx EnvVol (23:16)
-08 xxxxxxxx xxxxxxxx DSAddr (15:0)
-0a -xxxxxxx -------- Modes
-0c xxxxxxxx xxxxxxxx LoopBegin (15:0)
-0e -xxxxxxx -------- LChnVol
- -------- --xxxxxx LoopBegin (21:16)
-10 xxxxxxxx xxxxxxxx LoopEnd (15:0)
-12 -xxxxxxx -------- RChnVol
- -------- --xxxxxx LoopEnd (21:16)
-14 xxxxxxxx xxxxxxxx EnvRate0 (15:0)
-16 xxxxxxxx xxxxxxxx EnvRate1 (15:0)
-18 xxxxxxxx xxxxxxxx EnvRate2 (15:0)
-1a xxxxxxxx xxxxxxxx EnvRate3 (15:0)
-1c x------- -------- EnvRate1 (16)
- -xxxxxxx -------- EnvTarget1
- -------- x------- EnvRate0 (16)
- -------- -xxxxxxx EnvTarget0
-1e x------- -------- EnvRate3 (16)
- -xxxxxxx -------- EnvTarget3
- -------- x------- EnvRate2 (16)
- -------- -xxxxxxx EnvTarget2
+ fedcba98 76543210
+00 xxxxxxxx xxxxxxxx CurSAddr (15:0)
+02 xxxxxxxx xxxxxxxx CurSAddr (31:16)
+04 xxxxxxxx xxxxxxxx EnvVol (15:0)
+06 -11x---- -------- Loop Direction(LD)
+ -11-xxxx -------- EnvStage
+ -------- xxxxxxxx EnvVol (23:16)
+08 xxxxxxxx xxxxxxxx DSAddr (15:0)
+0a -xxxxxxx -------- Modes
+0c xxxxxxxx xxxxxxxx LoopBegin (15:0)
+0e -xxxxxxx -------- LChnVol
+ -------- --xxxxxx LoopBegin (21:16)
+10 xxxxxxxx xxxxxxxx LoopEnd (15:0)
+12 -xxxxxxx -------- RChnVol
+ -------- --xxxxxx LoopEnd (21:16)
+14 xxxxxxxx xxxxxxxx EnvRate0 (15:0)
+16 xxxxxxxx xxxxxxxx EnvRate1 (15:0)
+18 xxxxxxxx xxxxxxxx EnvRate2 (15:0)
+1a xxxxxxxx xxxxxxxx EnvRate3 (15:0)
+1c x------- -------- EnvRate1 (16)
+ -xxxxxxx -------- EnvTarget1
+ -------- x------- EnvRate0 (16)
+ -------- -xxxxxxx EnvTarget0
+1e x------- -------- EnvRate3 (16)
+ -xxxxxxx -------- EnvTarget3
+ -------- x------- EnvRate2 (16)
+ -------- -xxxxxxx EnvTarget2
*/
u16 vr0sound_device::channel_t::read(offs_t offset)
{
u16 ret = 0;
-
+
switch (offset)
{
case 0x00/2: