1 // license:BSD-3-Clause
2 // copyright-holders:smf
3 /**********************************************************************
4
5 Personal Peripheral Products Speakeasy 64 cartridge emulation
6
7 **********************************************************************/
8
9 #include "emu.h"
10 #include "speakeasy.h"
11 #include "speaker.h"
12
13
14
15 //**************************************************************************
16 // MACROS/CONSTANTS
17 //**************************************************************************
18
19 #define SC01A_TAG "sc01a"
20
21
22
23 //**************************************************************************
24 // DEVICE DEFINITIONS
25 //**************************************************************************
26
27 DEFINE_DEVICE_TYPE(C64_SPEAKEASY, c64_speakeasy_cartridge_device, "c64_speakeasy", "PPP Speakeasy 64")
28
29
30 //-------------------------------------------------
31 // device_add_mconfig - add device configuration
32 //-------------------------------------------------
33
device_add_mconfig(machine_config & config)34 void c64_speakeasy_cartridge_device::device_add_mconfig(machine_config &config)
35 {
36 SPEAKER(config, "mono").front_center();
37
38 VOTRAX_SC01(config, m_votrax, 720000).add_route(ALL_OUTPUTS, "mono", 0.85);
39 }
40
41
42
43 //**************************************************************************
44 // LIVE DEVICE
45 //**************************************************************************
46
47 //-------------------------------------------------
48 // c64_speakeasy_cartridge_device - constructor
49 //-------------------------------------------------
50
c64_speakeasy_cartridge_device(const machine_config & mconfig,const char * tag,device_t * owner,uint32_t clock)51 c64_speakeasy_cartridge_device::c64_speakeasy_cartridge_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) :
52 device_t(mconfig, C64_SPEAKEASY, tag, owner, clock),
53 device_c64_expansion_card_interface(mconfig, *this),
54 m_votrax(*this, SC01A_TAG)
55 {
56 }
57
58
59 //-------------------------------------------------
60 // device_start - device-specific startup
61 //-------------------------------------------------
62
device_start()63 void c64_speakeasy_cartridge_device::device_start()
64 {
65 }
66
67
68 //-------------------------------------------------
69 // c64_cd_r - cartridge data read
70 //-------------------------------------------------
71
c64_cd_r(offs_t offset,uint8_t data,int sphi2,int ba,int roml,int romh,int io1,int io2)72 uint8_t c64_speakeasy_cartridge_device::c64_cd_r(offs_t offset, uint8_t data, int sphi2, int ba, int roml, int romh, int io1, int io2)
73 {
74 if (!io1)
75 {
76 return m_votrax->request() << 7;
77 }
78
79 return data;
80 }
81
82
83 //-------------------------------------------------
84 // c64_cd_w - cartridge data write
85 //-------------------------------------------------
86
c64_cd_w(offs_t offset,uint8_t data,int sphi2,int ba,int roml,int romh,int io1,int io2)87 void c64_speakeasy_cartridge_device::c64_cd_w(offs_t offset, uint8_t data, int sphi2, int ba, int roml, int romh, int io1, int io2)
88 {
89 if (!io1)
90 {
91 m_votrax->write(data & 0x3f);
92 m_votrax->inflection_w(data >> 6);
93 }
94 }
95