// license:BSD-3-Clause // copyright-holders:David Haywood /***************************************************************************** SunPlus "GCM394" (based on die pictures) **********************************************************************/ #include "emu.h" #include "sunplus_gcm394.h" #define LOG_GCM394_SYSDMA (1U << 2) #define LOG_GCM394 (1U << 1) #define LOG_GCM394_UNMAPPED (1U << 0) #define VERBOSE (LOG_GCM394_UNMAPPED | LOG_GCM394_SYSDMA) #include "logmacro.h" DEFINE_DEVICE_TYPE(GCM394, sunplus_gcm394_device, "gcm394", "SunPlus GCM394 System-on-a-Chip") sunplus_gcm394_device::sunplus_gcm394_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) : sunplus_gcm394_base_device(mconfig, GCM394, tag, owner, clock) { } // **************************************** SYSTEM DMA device ************************************************* READ16_MEMBER(sunplus_gcm394_base_device::system_dma_status_r) { LOGMASKED(LOG_GCM394_SYSDMA, "%s:sunplus_gcm394_base_device::system_dma_status_r (7abf)\n", machine().describe_context()); return 0x0001; } WRITE16_MEMBER(sunplus_gcm394_base_device::system_dma_params_w) { m_dma_params[offset] = data; LOGMASKED(LOG_GCM394_SYSDMA, "%s:sunplus_gcm394_base_device::sys_dma_params_w %01x %04x\n", machine().describe_context(), offset, data); } WRITE16_MEMBER(sunplus_gcm394_base_device::system_dma_trigger_w) { uint16_t mode = m_dma_params[0]; uint16_t sourcelow = m_dma_params[1]; uint16_t dest = m_dma_params[2]; uint16_t length = m_dma_params[3]; uint16_t srchigh = m_dma_params[4]; LOGMASKED(LOG_GCM394_SYSDMA, "%s:possible DMA operation (7abf) (trigger %04x) with params mode:%04x source:%04x dest:%04x length:%04x srchigh:%04x unk:%04x unk:%04x\n", machine().describe_context(), data, mode, sourcelow, dest, length, srchigh, m_dma_params[5], m_dma_params[6]); uint32_t source = sourcelow | (srchigh << 16); // wrlshunt uses the extra params, might be doing very large ROM -> RAM transfers with even more upper address bits? if (mode == 0x0089) // no source inc, used for memory clear operations? (source usually points at stack value) { for (int i = 0; i < length; i++) { address_space &mem = this->space(AS_PROGRAM); uint16_t val = mem.read_word(source); mem.write_word(dest, val); dest += 1; } } else if (mode == 0x0009) // regular copy? (smartfp does 2 copies like this after the initial clears, source definitely points at a correctly sized data structure) { for (int i = 0; i < length; i++) { address_space &mem = this->space(AS_PROGRAM); uint16_t val = mem.read_word(source); mem.write_word(dest, val); dest += 1; source += 1; } } else { LOGMASKED(LOG_GCM394_SYSDMA, "unhandled!\n"); } m_dma_params[0] = m_dma_params[1] = m_dma_params[2] = m_dma_params[3] = m_dma_params[4] = m_dma_params[5] = m_dma_params[6] = 0x0000; //machine().debug_break(); } // **************************************** 78xx region with some handling ************************************************* READ16_MEMBER(sunplus_gcm394_base_device::unkarea_780f_status_r) { LOGMASKED(LOG_GCM394, "%s:sunplus_gcm394_base_device::unkarea_780f_status_r\n", machine().describe_context()); return 0x0002; } READ16_MEMBER(sunplus_gcm394_base_device::unkarea_78fb_status_r) { LOGMASKED(LOG_GCM394, "%s:sunplus_gcm394_base_device::unkarea_78fb_status_r\n", machine().describe_context()); m_78fb ^= 0x0100; // status flag for something? return m_78fb; } // sets bit 0x0002 then expects it to have cleared READ16_MEMBER(sunplus_gcm394_base_device::unkarea_7819_r) { LOGMASKED(LOG_GCM394, "%s:sunplus_gcm394_base_device::unkarea_7819_r\n", machine().describe_context()); return m_7819 & ~ 0x0002; } WRITE16_MEMBER(sunplus_gcm394_base_device::unkarea_7819_w) { LOGMASKED(LOG_GCM394, "%s:sunplus_gcm394_base_device::unkarea_7819_w %04x\n", machine().describe_context(), data); m_7819 = data; } // **************************************** 78xx region stubs ************************************************* READ16_MEMBER(sunplus_gcm394_base_device::unkarea_7868_r) { LOGMASKED(LOG_GCM394, "%s:sunplus_gcm394_base_device::unkarea_7868_r\n", machine().describe_context()); return 0x0000; } READ16_MEMBER(sunplus_gcm394_base_device::unkarea_782d_r) { LOGMASKED(LOG_GCM394, "%s:sunplus_gcm394_base_device::unkarea_782d_r\n", machine().describe_context()); return m_782d; } WRITE16_MEMBER(sunplus_gcm394_base_device::unkarea_782d_w) { LOGMASKED(LOG_GCM394, "%s:sunplus_gcm394_base_device::unkarea_782d_w %04x\n", machine().describe_context(), data); m_782d = data; } READ16_MEMBER(sunplus_gcm394_base_device::unkarea_7803_r) { LOGMASKED(LOG_GCM394, "%s:sunplus_gcm394_base_device::unkarea_7803_r\n", machine().describe_context()); return m_7803; } WRITE16_MEMBER(sunplus_gcm394_base_device::unkarea_7803_w) { LOGMASKED(LOG_GCM394, "%s:sunplus_gcm394_base_device::unkarea_7803_w %04x\n", machine().describe_context(), data); m_7803 = data; } WRITE16_MEMBER(sunplus_gcm394_base_device::unkarea_7807_w) { LOGMASKED(LOG_GCM394, "%s:sunplus_gcm394_base_device::unkarea_7807_w %04x\n", machine().describe_context(), data); m_7807 = data; } READ16_MEMBER(sunplus_gcm394_base_device::unkarea_7810_r) { LOGMASKED(LOG_GCM394, "%s:sunplus_gcm394_base_device::unkarea_7810_r\n", machine().describe_context()); return m_7810; } WRITE16_MEMBER(sunplus_gcm394_base_device::unkarea_7810_w) { LOGMASKED(LOG_GCM394, "%s:sunplus_gcm394_base_device::unkarea_7810_w %04x\n", machine().describe_context(), data); m_7810 = data; } WRITE16_MEMBER(sunplus_gcm394_base_device::unkarea_7816_w) { LOGMASKED(LOG_GCM394, "%s:sunplus_gcm394_base_device::unkarea_7816_w %04x\n", machine().describe_context(), data); m_7816 = data; } WRITE16_MEMBER(sunplus_gcm394_base_device::unkarea_7817_w) { LOGMASKED(LOG_GCM394, "%s:sunplus_gcm394_base_device::unkarea_7817_w %04x\n", machine().describe_context(), data); m_7817 = data; } WRITE16_MEMBER(sunplus_gcm394_base_device::unkarea_7820_w) { LOGMASKED(LOG_GCM394, "%s:sunplus_gcm394_base_device::unkarea_7820_w %04x\n", machine().describe_context(), data); m_7820 = data; } WRITE16_MEMBER(sunplus_gcm394_base_device::unkarea_7821_w) { LOGMASKED(LOG_GCM394, "%s:sunplus_gcm394_base_device::unkarea_7821_w %04x\n", machine().describe_context(), data); m_7821 = data; } WRITE16_MEMBER(sunplus_gcm394_base_device::unkarea_7822_w) { LOGMASKED(LOG_GCM394, "%s:sunplus_gcm394_base_device::unkarea_7822_w %04x\n", machine().describe_context(), data); m_7822 = data; } WRITE16_MEMBER(sunplus_gcm394_base_device::unkarea_7823_w) { LOGMASKED(LOG_GCM394, "%s:sunplus_gcm394_base_device::unkarea_7823_w %04x\n", machine().describe_context(), data); m_7823 = data; } WRITE16_MEMBER(sunplus_gcm394_base_device::unkarea_7824_w) { LOGMASKED(LOG_GCM394, "%s:sunplus_gcm394_base_device::unkarea_7824_w %04x\n", machine().describe_context(), data); m_7824 = data; } WRITE16_MEMBER(sunplus_gcm394_base_device::unkarea_7835_w) { LOGMASKED(LOG_GCM394, "%s:sunplus_gcm394_base_device::unkarea_7835_w %04x\n", machine().describe_context(), data); m_7835 = data; } // IO here? READ16_MEMBER(sunplus_gcm394_base_device::ioport_a_r) { LOGMASKED(LOG_GCM394, "%s:sunplus_gcm394_base_device::ioport_a_r\n", machine().describe_context()); return m_porta_in(); } WRITE16_MEMBER(sunplus_gcm394_base_device::ioport_a_w) { LOGMASKED(LOG_GCM394, "%s:sunplus_gcm394_base_device::ioport_a_w %04x\n", machine().describe_context(), data); m_7860 = data; } READ16_MEMBER(sunplus_gcm394_base_device::unkarea_7861_r) { LOGMASKED(LOG_GCM394, "%s:sunplus_gcm394_base_device::unkarea_7861_r\n", machine().describe_context()); return m_7861; } READ16_MEMBER(sunplus_gcm394_base_device::unkarea_7862_r) { LOGMASKED(LOG_GCM394, "%s:sunplus_gcm394_base_device::unkarea_7862_r\n", machine().describe_context()); return m_7862; } WRITE16_MEMBER(sunplus_gcm394_base_device::unkarea_7862_w) { LOGMASKED(LOG_GCM394, "%s:sunplus_gcm394_base_device::unkarea_7862_w %04x\n", machine().describe_context(), data); m_7862 = data; } READ16_MEMBER(sunplus_gcm394_base_device::unkarea_7863_r) { LOGMASKED(LOG_GCM394, "%s:sunplus_gcm394_base_device::unkarea_7863_r\n", machine().describe_context()); return m_7863; } WRITE16_MEMBER(sunplus_gcm394_base_device::unkarea_7863_w) { LOGMASKED(LOG_GCM394, "%s:sunplus_gcm394_base_device::unkarea_7863_w %04x\n", machine().describe_context(), data); m_7863 = data; } // similar read/write pattern to above, 2nd group? READ16_MEMBER(sunplus_gcm394_base_device::unkarea_7870_r) { LOGMASKED(LOG_GCM394, "%s:sunplus_gcm394_base_device::unkarea_7870_r\n", machine().describe_context()); return m_portb_in(); } WRITE16_MEMBER(sunplus_gcm394_base_device::unkarea_7870_w) { LOGMASKED(LOG_GCM394, "%s:sunplus_gcm394_base_device::unkarea_7870_w %04x\n", machine().describe_context(), data); m_7870 = data; } READ16_MEMBER(sunplus_gcm394_base_device::unkarea_7871_r) { LOGMASKED(LOG_GCM394, "%s:sunplus_gcm394_base_device::unkarea_7871_r\n", machine().describe_context()); return m_7871; } READ16_MEMBER(sunplus_gcm394_base_device::unkarea_7872_r) { LOGMASKED(LOG_GCM394, "%s:sunplus_gcm394_base_device::unkarea_7872_r\n", machine().describe_context()); return m_7872; } WRITE16_MEMBER(sunplus_gcm394_base_device::unkarea_7872_w) { LOGMASKED(LOG_GCM394, "%s:sunplus_gcm394_base_device::unkarea_7872_w %04x\n", machine().describe_context(), data); m_7872 = data; } READ16_MEMBER(sunplus_gcm394_base_device::unkarea_7873_r) { LOGMASKED(LOG_GCM394, "%s:sunplus_gcm394_base_device::unkarea_7873_r\n", machine().describe_context()); return m_7873; } WRITE16_MEMBER(sunplus_gcm394_base_device::unkarea_7873_w) { LOGMASKED(LOG_GCM394, "%s:sunplus_gcm394_base_device::unkarea_7873_w %04x\n", machine().describe_context(), data); m_7873 = data; } READ16_MEMBER(sunplus_gcm394_base_device::unkarea_7882_r) { LOGMASKED(LOG_GCM394, "%s:sunplus_gcm394_base_device::unkarea_7882_r\n", machine().describe_context()); return m_7882; } WRITE16_MEMBER(sunplus_gcm394_base_device::unkarea_7882_w) { LOGMASKED(LOG_GCM394, "%s:sunplus_gcm394_base_device::unkarea_7882_w %04x\n", machine().describe_context(), data); m_7882 = data; } READ16_MEMBER(sunplus_gcm394_base_device::unkarea_7883_r) { LOGMASKED(LOG_GCM394, "%s:sunplus_gcm394_base_device::unkarea_7883_r\n", machine().describe_context()); return m_7883; } WRITE16_MEMBER(sunplus_gcm394_base_device::unkarea_7883_w) { LOGMASKED(LOG_GCM394, "%s:sunplus_gcm394_base_device::unkarea_7883_w %04x\n", machine().describe_context(), data); m_7883 = data; } WRITE16_MEMBER(sunplus_gcm394_base_device::unkarea_78a0_w) { LOGMASKED(LOG_GCM394, "%s:sunplus_gcm394_base_device::unkarea_78a0_w %04x\n", machine().describe_context(), data); m_78a0 = data; } WRITE16_MEMBER(sunplus_gcm394_base_device::unkarea_78a4_w) { LOGMASKED(LOG_GCM394, "%s:sunplus_gcm394_base_device::unkarea_78a4_w %04x\n", machine().describe_context(), data); m_78a4 = data; } WRITE16_MEMBER(sunplus_gcm394_base_device::unkarea_78a5_w) { LOGMASKED(LOG_GCM394, "%s:sunplus_gcm394_base_device::unkarea_78a5_w %04x\n", machine().describe_context(), data); m_78a5 = data; } WRITE16_MEMBER(sunplus_gcm394_base_device::unkarea_78a6_w) { LOGMASKED(LOG_GCM394, "%s:sunplus_gcm394_base_device::unkarea_78a6_w %04x\n", machine().describe_context(), data); m_78a6 = data; } WRITE16_MEMBER(sunplus_gcm394_base_device::unkarea_78a8_w) { LOGMASKED(LOG_GCM394, "%s:sunplus_gcm394_base_device::unkarea_78a8_w %04x\n", machine().describe_context(), data); m_78a8 = data; } WRITE16_MEMBER(sunplus_gcm394_base_device::unkarea_78b0_w) { LOGMASKED(LOG_GCM394, "%s:sunplus_gcm394_base_device::unkarea_78b0_w %04x\n", machine().describe_context(), data); m_78b0 = data; } WRITE16_MEMBER(sunplus_gcm394_base_device::unkarea_78b1_w) { LOGMASKED(LOG_GCM394, "%s:sunplus_gcm394_base_device::unkarea_78b1_w %04x\n", machine().describe_context(), data); m_78b1 = data; } WRITE16_MEMBER(sunplus_gcm394_base_device::unkarea_78b2_w) { LOGMASKED(LOG_GCM394, "%s:sunplus_gcm394_base_device::unkarea_78b2_w %04x\n", machine().describe_context(), data); m_78b2 = data; } WRITE16_MEMBER(sunplus_gcm394_base_device::unkarea_78b8_w) { LOGMASKED(LOG_GCM394, "%s:sunplus_gcm394_base_device::unkarea_78b8_w %04x\n", machine().describe_context(), data); m_78b8 = data; } WRITE16_MEMBER(sunplus_gcm394_base_device::unkarea_78f0_w) { LOGMASKED(LOG_GCM394, "%s:sunplus_gcm394_base_device::unkarea_78f0_w %04x\n", machine().describe_context(), data); m_78f0 = data; } // **************************************** 79xx region stubs ************************************************* READ16_MEMBER(sunplus_gcm394_base_device::unkarea_7934_r) { LOGMASKED(LOG_GCM394, "%s:sunplus_gcm394_base_device::unkarea_7934_r\n", machine().describe_context()); return 0x0000; } WRITE16_MEMBER(sunplus_gcm394_base_device::unkarea_7934_w) { LOGMASKED(LOG_GCM394, "%s:sunplus_gcm394_base_device::unkarea_7934_w %04x\n", machine().describe_context(), data); m_7934 = data; } // value of 7935 is read then written in irq6, nothing happens unless bit 0x0100 was set, which could be some kind of irq source being acked? READ16_MEMBER(sunplus_gcm394_base_device::unkarea_7935_r) { LOGMASKED(LOG_GCM394, "%s:sunplus_gcm394_base_device::unkarea_7935_r\n", machine().describe_context()); return m_7935; } WRITE16_MEMBER(sunplus_gcm394_base_device::unkarea_7935_w) { LOGMASKED(LOG_GCM394, "%s:sunplus_gcm394_base_device::unkarea_7935_w %04x\n", machine().describe_context(), data); m_7935 &= ~data; checkirq6(); } READ16_MEMBER(sunplus_gcm394_base_device::unkarea_7936_r) { LOGMASKED(LOG_GCM394, "%s:sunplus_gcm394_base_device::unkarea_7936_r\n", machine().describe_context()); return 0x0000; } WRITE16_MEMBER(sunplus_gcm394_base_device::unkarea_7936_w) { LOGMASKED(LOG_GCM394, "%s:sunplus_gcm394_base_device::unkarea_7936_w %04x\n", machine().describe_context(), data); m_7936 = data; } WRITE16_MEMBER(sunplus_gcm394_base_device::unkarea_7960_w) { LOGMASKED(LOG_GCM394, "%s:sunplus_gcm394_base_device::unkarea_7960_w %04x\n", machine().describe_context(), data); m_7960 = data; } READ16_MEMBER(sunplus_gcm394_base_device::unkarea_7961_r) { LOGMASKED(LOG_GCM394, "%s:sunplus_gcm394_base_device::unkarea_7961_r\n", machine().describe_context()); return m_7961; } WRITE16_MEMBER(sunplus_gcm394_base_device::unkarea_7961_w) { LOGMASKED(LOG_GCM394, "%s:sunplus_gcm394_base_device::unkarea_7961_w %04x\n", machine().describe_context(), data); m_7961 = data; } // **************************************** fallthrough logger etc. ************************************************* READ16_MEMBER(sunplus_gcm394_base_device::unk_r) { switch (offset) { default: LOGMASKED(LOG_GCM394_UNMAPPED, "%s:sunplus_gcm394_base_device::unk_r @ 0x%04x\n", machine().describe_context(), offset + 0x7000); return 0x0000; } return 0x0000; } WRITE16_MEMBER(sunplus_gcm394_base_device::unk_w) { switch (offset) { default: LOGMASKED(LOG_GCM394_UNMAPPED, "%s:sunplus_gcm394_base_device::unk_w @ 0x%04x (data 0x%04x)\n", machine().describe_context(), offset + 0x7000, data); break; } } void sunplus_gcm394_base_device::internal_map(address_map &map) { map(0x000000, 0x006fff).ram(); map(0x007000, 0x007fff).rw(FUNC(sunplus_gcm394_base_device::unk_r), FUNC(sunplus_gcm394_base_device::unk_w)); // catch unhandled // ###################################################################################################################################################################################### // 70xx region = video hardware // ###################################################################################################################################################################################### // note, tilemaps are at the same address offsets in video device as spg2xx (but unknown devices are extra) map(0x007000, 0x007007).w(m_spg_video, FUNC(gcm394_base_video_device::unknown_video_device0_regs_w)); map(0x007008, 0x00700f).w(m_spg_video, FUNC(gcm394_base_video_device::unknown_video_device1_regs_w)); map(0x007010, 0x007015).rw(m_spg_video, FUNC(gcm394_base_video_device::tmap0_regs_r), FUNC(gcm394_base_video_device::tmap0_regs_w)); map(0x007016, 0x00701b).rw(m_spg_video, FUNC(gcm394_base_video_device::tmap1_regs_r), FUNC(gcm394_base_video_device::tmap1_regs_w)); map(0x007020, 0x007020).w(m_spg_video, FUNC(gcm394_base_video_device::tmap0_unk0_w)); // probably tilebase, written with other tmap0 regs map(0x007021, 0x007021).w(m_spg_video, FUNC(gcm394_base_video_device::tmap1_unk0_w)); // probably tilebase, written with other tmap1 regs map(0x007022, 0x007022).w(m_spg_video, FUNC(gcm394_base_video_device::unknown_video_device2_unk0_w)); // another tilebase? maybe sprites? written as 7022, 702d and 7042 group map(0x007023, 0x007023).w(m_spg_video, FUNC(gcm394_base_video_device::unknown_video_device0_unk0_w)); // written with other unknown_video_device0 regs map(0x007024, 0x007024).w(m_spg_video, FUNC(gcm394_base_video_device::unknown_video_device1_unk0_w)); // written with other unknown_video_device1 regs map(0x00702a, 0x00702a).w(m_spg_video, FUNC(gcm394_base_video_device::video_702a_w)); map(0x00702b, 0x00702b).w(m_spg_video, FUNC(gcm394_base_video_device::tmap0_unk1_w)); // written with other tmap0 regs map(0x00702c, 0x00702c).w(m_spg_video, FUNC(gcm394_base_video_device::tmap1_unk1_w)); // written with other tmap1 regs map(0x00702d, 0x00702d).w(m_spg_video, FUNC(gcm394_base_video_device::unknown_video_device2_unk1_w)); // maybe sprites? written as 7022, 702d and 7042 group map(0x00702e, 0x00702e).w(m_spg_video, FUNC(gcm394_base_video_device::unknown_video_device0_unk1_w)); // written with other unknown_video_device0 regs map(0x00702f, 0x00702f).w(m_spg_video, FUNC(gcm394_base_video_device::unknown_video_device1_unk1_w)); // written with other unknown_video_device1 regs map(0x007030, 0x007030).rw(m_spg_video, FUNC(gcm394_base_video_device::video_7030_r), FUNC(gcm394_base_video_device::video_7030_w)); map(0x00703a, 0x00703a).rw(m_spg_video, FUNC(gcm394_base_video_device::video_703a_r), FUNC(gcm394_base_video_device::video_703a_w)); map(0x00703c, 0x00703c).w(m_spg_video, FUNC(gcm394_base_video_device::video_703c_w)); map(0x007042, 0x007042).w(m_spg_video, FUNC(gcm394_base_video_device::unknown_video_device2_unk2_w)); // maybe sprites? written as 7022, 702d and 7042 group map(0x007062, 0x007062).rw(m_spg_video, FUNC(gcm394_base_video_device::video_7062_r), FUNC(gcm394_base_video_device::video_7062_w)); map(0x007063, 0x007063).w(m_spg_video, FUNC(gcm394_base_video_device::video_7063_w)); // note, 70 / 71 / 72 are the same offsets used for DMA as in spg2xx video device map(0x007070, 0x007070).w(m_spg_video, FUNC(gcm394_base_video_device::video_dma_source_w)); // video dma, not system dma? (sets pointers to ram buffers) map(0x007071, 0x007071).w(m_spg_video, FUNC(gcm394_base_video_device::video_dma_dest_w)); // sets pointers to 7300, 7400 ram areas below map(0x007072, 0x007072).rw(m_spg_video, FUNC(gcm394_base_video_device::video_dma_size_r), FUNC(gcm394_base_video_device::video_dma_size_w)); // map(0x00707e, 0x00707e).w(m_spg_video, FUNC(gcm394_base_video_device::video_dma_unk_w)); // written around same time as DMA, seems to select alt sprite bank map(0x00707f, 0x00707f).rw(m_spg_video, FUNC(gcm394_base_video_device::video_707f_r), FUNC(gcm394_base_video_device::video_707f_w)); // another set of registers for something? map(0x007080, 0x007080).w(m_spg_video, FUNC(gcm394_base_video_device::video_7080_w)); map(0x007081, 0x007081).w(m_spg_video, FUNC(gcm394_base_video_device::video_7081_w)); map(0x007082, 0x007082).w(m_spg_video, FUNC(gcm394_base_video_device::video_7082_w)); map(0x007083, 0x007083).rw(m_spg_video, FUNC(gcm394_base_video_device::video_7083_r), FUNC(gcm394_base_video_device::video_7083_w)); map(0x007084, 0x007084).w(m_spg_video, FUNC(gcm394_base_video_device::video_7084_w)); map(0x007085, 0x007085).w(m_spg_video, FUNC(gcm394_base_video_device::video_7085_w)); map(0x007086, 0x007086).w(m_spg_video, FUNC(gcm394_base_video_device::video_7086_w)); map(0x007087, 0x007087).w(m_spg_video, FUNC(gcm394_base_video_device::video_7087_w)); map(0x007088, 0x007088).w(m_spg_video, FUNC(gcm394_base_video_device::video_7088_w)); // ###################################################################################################################################################################################### // 73xx-77xx = video ram // ###################################################################################################################################################################################### map(0x007300, 0x0073ff).rw(m_spg_video, FUNC(gcm394_base_video_device::palette_r), FUNC(gcm394_base_video_device::palette_w)); map(0x007400, 0x0077ff).ram().share("spriteram"); // ###################################################################################################################################################################################### // 78xx region = io + other? // ###################################################################################################################################################################################### map(0x007803, 0x007803).rw(FUNC(sunplus_gcm394_base_device::unkarea_7803_r), FUNC(sunplus_gcm394_base_device::unkarea_7803_w)); map(0x007807, 0x007807).w(FUNC(sunplus_gcm394_base_device::unkarea_7807_w)); map(0x00780f, 0x00780f).r(FUNC(sunplus_gcm394_base_device::unkarea_780f_status_r)); map(0x007810, 0x007810).rw(FUNC(sunplus_gcm394_base_device::unkarea_7810_r), FUNC(sunplus_gcm394_base_device::unkarea_7810_w)); map(0x007819, 0x007819).rw(FUNC(sunplus_gcm394_base_device::unkarea_7819_r), FUNC(sunplus_gcm394_base_device::unkarea_7819_w)); map(0x007816, 0x007816).w(FUNC(sunplus_gcm394_base_device::unkarea_7816_w)); map(0x007817, 0x007817).w(FUNC(sunplus_gcm394_base_device::unkarea_7817_w)); map(0x007820, 0x007820).w(FUNC(sunplus_gcm394_base_device::unkarea_7820_w)); map(0x007821, 0x007821).w(FUNC(sunplus_gcm394_base_device::unkarea_7821_w)); map(0x007822, 0x007822).w(FUNC(sunplus_gcm394_base_device::unkarea_7822_w)); map(0x007823, 0x007823).w(FUNC(sunplus_gcm394_base_device::unkarea_7823_w)); map(0x007824, 0x007824).w(FUNC(sunplus_gcm394_base_device::unkarea_7824_w)); map(0x00782d, 0x00782d).rw(FUNC(sunplus_gcm394_base_device::unkarea_782d_r), FUNC(sunplus_gcm394_base_device::unkarea_782d_w)); // on startup map(0x007835, 0x007835).w(FUNC(sunplus_gcm394_base_device::unkarea_7835_w)); map(0x007860, 0x007860).rw(FUNC(sunplus_gcm394_base_device::ioport_a_r), FUNC(sunplus_gcm394_base_device::ioport_a_w)); map(0x007861, 0x007861).r(FUNC(sunplus_gcm394_base_device::unkarea_7861_r)); map(0x007862, 0x007862).rw(FUNC(sunplus_gcm394_base_device::unkarea_7862_r), FUNC(sunplus_gcm394_base_device::unkarea_7862_w)); map(0x007863, 0x007863).rw(FUNC(sunplus_gcm394_base_device::unkarea_7863_r), FUNC(sunplus_gcm394_base_device::unkarea_7863_w)); map(0x007868, 0x007868).r(FUNC(sunplus_gcm394_base_device::unkarea_7868_r)); // on startup map(0x007870, 0x007870).rw(FUNC(sunplus_gcm394_base_device::unkarea_7870_r) ,FUNC(sunplus_gcm394_base_device::unkarea_7870_w)); map(0x007871, 0x007871).r(FUNC(sunplus_gcm394_base_device::unkarea_7871_r)); map(0x007872, 0x007872).rw(FUNC(sunplus_gcm394_base_device::unkarea_7872_r), FUNC(sunplus_gcm394_base_device::unkarea_7872_w)); map(0x007873, 0x007873).rw(FUNC(sunplus_gcm394_base_device::unkarea_7873_r), FUNC(sunplus_gcm394_base_device::unkarea_7873_w)); map(0x007882, 0x007882).rw(FUNC(sunplus_gcm394_base_device::unkarea_7882_r), FUNC(sunplus_gcm394_base_device::unkarea_7882_w)); map(0x007883, 0x007883).rw(FUNC(sunplus_gcm394_base_device::unkarea_7883_r), FUNC(sunplus_gcm394_base_device::unkarea_7883_w)); map(0x0078a0, 0x0078a0).w(FUNC(sunplus_gcm394_base_device::unkarea_78a0_w)); map(0x0078a4, 0x0078a4).w(FUNC(sunplus_gcm394_base_device::unkarea_78a4_w)); map(0x0078a5, 0x0078a5).w(FUNC(sunplus_gcm394_base_device::unkarea_78a5_w)); map(0x0078a6, 0x0078a6).w(FUNC(sunplus_gcm394_base_device::unkarea_78a6_w)); map(0x0078a8, 0x0078a8).w(FUNC(sunplus_gcm394_base_device::unkarea_78a8_w)); map(0x0078b0, 0x0078b0).w(FUNC(sunplus_gcm394_base_device::unkarea_78b0_w)); map(0x0078b1, 0x0078b1).w(FUNC(sunplus_gcm394_base_device::unkarea_78b1_w)); map(0x0078b2, 0x0078b2).w(FUNC(sunplus_gcm394_base_device::unkarea_78b2_w)); map(0x0078b8, 0x0078b8).w(FUNC(sunplus_gcm394_base_device::unkarea_78b8_w)); map(0x0078f0, 0x0078f0).w(FUNC(sunplus_gcm394_base_device::unkarea_78f0_w)); map(0x0078fb, 0x0078fb).r(FUNC(sunplus_gcm394_base_device::unkarea_78fb_status_r)); // ###################################################################################################################################################################################### // 79xx region = timers? // ###################################################################################################################################################################################### map(0x007934, 0x007934).rw(FUNC(sunplus_gcm394_base_device::unkarea_7934_r), FUNC(sunplus_gcm394_base_device::unkarea_7934_w)); map(0x007935, 0x007935).rw(FUNC(sunplus_gcm394_base_device::unkarea_7935_r), FUNC(sunplus_gcm394_base_device::unkarea_7935_w)); map(0x007936, 0x007936).rw(FUNC(sunplus_gcm394_base_device::unkarea_7936_r), FUNC(sunplus_gcm394_base_device::unkarea_7936_w)); map(0x007960, 0x007960).w(FUNC(sunplus_gcm394_base_device::unkarea_7960_w)); map(0x007961, 0x007961).rw(FUNC(sunplus_gcm394_base_device::unkarea_7961_r), FUNC(sunplus_gcm394_base_device::unkarea_7961_w)); // ###################################################################################################################################################################################### // 7axx region = system (including dma) // ###################################################################################################################################################################################### map(0x007a80, 0x007a86).w(FUNC(sunplus_gcm394_base_device::system_dma_params_w)); map(0x007abf, 0x007abf).rw(FUNC(sunplus_gcm394_base_device::system_dma_status_r), FUNC(sunplus_gcm394_base_device::system_dma_trigger_w)); // ###################################################################################################################################################################################### // 7bxx-7fxx = audio // ###################################################################################################################################################################################### map(0x007b80, 0x007bbf).rw(m_spg_audio, FUNC(sunplus_gcm394_audio_device::control_r), FUNC(sunplus_gcm394_audio_device::control_w)); map(0x007c00, 0x007dff).rw(m_spg_audio, FUNC(sunplus_gcm394_audio_device::audio_r), FUNC(sunplus_gcm394_audio_device::audio_w)); map(0x007e00, 0x007fff).rw(m_spg_audio, FUNC(sunplus_gcm394_audio_device::audio_phase_r), FUNC(sunplus_gcm394_audio_device::audio_phase_w)); } void sunplus_gcm394_base_device::device_start() { unsp_20_device::device_start(); m_porta_in.resolve_safe(0); m_portb_in.resolve_safe(0); m_unk_timer = timer_alloc(0); m_unk_timer->adjust(attotime::never); } void sunplus_gcm394_base_device::device_reset() { unsp_20_device::device_reset(); for (int i = 0; i < 7; i++) { m_dma_params[i] = 0x0000; } // 78xx unknown m_78fb = 0x0000; m_782d = 0x0000; m_7807 = 0x0000; m_7810 = 0x0000; m_7816 = 0x0000; m_7817 = 0x0000; m_7819 = 0x0000; m_7820 = 0x0000; m_7821 = 0x0000; m_7822 = 0x0000; m_7823 = 0x0000; m_7824 = 0x0000; m_7835 = 0x0000; m_7860 = 0x0000; m_7861 = 0x0000; m_7862 = 0x0000; m_7863 = 0x0000; m_7870 = 0x0000; m_7871 = 0x0000; m_7872 = 0x0000; m_7873 = 0x0000; m_7882 = 0x0000; m_7883 = 0x0000; m_78a0 = 0x0000; m_78a4 = 0x0000; m_78a5 = 0x0000; m_78a6 = 0x0000; m_78a8 = 0x0000; m_78b0 = 0x0000; m_78b1 = 0x0000; m_78b2 = 0x0000; m_78b8 = 0x0000; m_78f0 = 0x0000; // 79xx unknown m_7934 = 0x0000; m_7935 = 0x0000; m_7936 = 0x0000; m_7960 = 0x0000; m_7961 = 0x0000; m_unk_timer->adjust(attotime::from_hz(60), 0, attotime::from_hz(60)); m_gfxregion = memregion(":maincpu")->base(); m_gfxregionsize = memregion(":maincpu")->bytes(); } void sunplus_gcm394_base_device::checkirq6() { if (m_7935 & 0x0100) set_state_unsynced(UNSP_IRQ6_LINE, ASSERT_LINE); else set_state_unsynced(UNSP_IRQ6_LINE, CLEAR_LINE); } void sunplus_gcm394_base_device::device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr) { switch (id) { case 0: { m_7935 |= 0x0100; checkirq6(); break; } } } WRITE_LINE_MEMBER(sunplus_gcm394_base_device::audioirq_w) { //set_state_unsynced(UNSP_IRQ5_LINE, state); } WRITE_LINE_MEMBER(sunplus_gcm394_base_device::videoirq_w) { set_state_unsynced(UNSP_IRQ5_LINE, state); } uint16_t sunplus_gcm394_base_device::read_space(uint32_t offset) { uint16_t b = m_gfxregion[(offset * 2) & (m_gfxregionsize - 1)] | (m_gfxregion[(offset * 2 + 1) & (m_gfxregionsize - 1)] << 8); return b; } void sunplus_gcm394_base_device::device_add_mconfig(machine_config &config) { SUNPLUS_GCM394_AUDIO(config, m_spg_audio, DERIVED_CLOCK(1, 1)); m_spg_audio->write_irq_callback().set(FUNC(sunplus_gcm394_base_device::audioirq_w)); m_spg_audio->space_read_callback().set(FUNC(sunplus_gcm394_base_device::read_space)); m_spg_audio->add_route(0, *this, 1.0, AUTO_ALLOC_INPUT, 0); m_spg_audio->add_route(1, *this, 1.0, AUTO_ALLOC_INPUT, 1); GCM394_VIDEO(config, m_spg_video, DERIVED_CLOCK(1, 1), DEVICE_SELF, m_screen); m_spg_video->write_video_irq_callback().set(FUNC(sunplus_gcm394_base_device::videoirq_w)); m_spg_video->space_read_callback().set(FUNC(sunplus_gcm394_base_device::read_space)); }