diff options
author | David Haywood <28625134+DavidHaywood@users.noreply.github.com> | 2019-11-27 00:21:09 +0000 |
---|---|---|
committer | ajrhacker <ajrhacker@users.noreply.github.com> | 2019-11-26 19:21:09 -0500 |
commit | 67da0956371c77ad860f06e11a2afb19cc63cfe6 (patch) | |
tree | 2ba4dd27cbac3df028d7c9651ee74676012a3e4c /src/devices/machine | |
parent | 6a42b2e1527501c042d3df62c8feb3306caaf01c (diff) |
sunplus_gcm394.cpp : wrlshunt / smartfp, continued research (#5972)
* fix opcode (nw)
* (nw)
* allow wrlshunt to move forward (nw)
* more ops (nw)
* more ops (nw)
* (nw)
* more dma fixes (nw)
* (nw)
* (nw)
Diffstat (limited to 'src/devices/machine')
-rw-r--r-- | src/devices/machine/sunplus_gcm394.cpp | 55 | ||||
-rw-r--r-- | src/devices/machine/sunplus_gcm394.h | 9 | ||||
-rw-r--r-- | src/devices/machine/sunplus_gcm394_video.cpp | 46 | ||||
-rw-r--r-- | src/devices/machine/sunplus_gcm394_video.h | 14 |
4 files changed, 82 insertions, 42 deletions
diff --git a/src/devices/machine/sunplus_gcm394.cpp b/src/devices/machine/sunplus_gcm394.cpp index 7016ccfdaa6..4998bbce242 100644 --- a/src/devices/machine/sunplus_gcm394.cpp +++ b/src/devices/machine/sunplus_gcm394.cpp @@ -15,7 +15,7 @@ #define LOG_GCM394 (1U << 1) #define LOG_GCM394_UNMAPPED (1U << 0) -#define VERBOSE (LOG_GCM394_UNMAPPED | LOG_GCM394_SYSDMA) +#define VERBOSE (LOG_GCM394 | LOG_GCM394_UNMAPPED | LOG_GCM394_SYSDMA) #include "logmacro.h" @@ -143,7 +143,12 @@ WRITE16_MEMBER(sunplus_gcm394_base_device::unkarea_7810_w) { LOGMASKED(LOG_GCM39 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_7820_w) +{ + LOGMASKED(LOG_GCM394, "%s:sunplus_gcm394_base_device::unkarea_7820_w (Rom Mapping control?) %04x\n", machine().describe_context(), data); + m_7820 = data; + m_mapping_write_cb(data); +} WRITE16_MEMBER(sunplus_gcm394_base_device::unkarea_7821_w) { @@ -208,7 +213,7 @@ WRITE16_MEMBER(sunplus_gcm394_base_device::unkarea_78b1_w) { LOGMASKED(LOG_GCM39 READ16_MEMBER(sunplus_gcm394_base_device::unkarea_78b2_r) { LOGMASKED(LOG_GCM394, "%s:sunplus_gcm394_base_device::unkarea_78b2_r\n", machine().describe_context()); - return machine().rand(); + return m_78b2; } 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; } @@ -227,7 +232,7 @@ 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(); + //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; } @@ -281,16 +286,16 @@ void sunplus_gcm394_base_device::internal_map(address_map &map) 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(0x007020, 0x007020).w(m_spg_video, FUNC(gcm394_base_video_device::tmap0_tilebase_lsb_w)); // probably tilebase, written with other tmap0 regs + map(0x007021, 0x007021).w(m_spg_video, FUNC(gcm394_base_video_device::tmap1_tilebase_lsb_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(0x00702b, 0x00702b).w(m_spg_video, FUNC(gcm394_base_video_device::tmap0_tilebase_msb_w)); // written with other tmap0 regs + map(0x00702c, 0x00702c).w(m_spg_video, FUNC(gcm394_base_video_device::tmap1_tilebase_msb_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 @@ -310,6 +315,7 @@ void sunplus_gcm394_base_device::internal_map(address_map &map) 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(0x00707c, 0x00707c).r(m_spg_video, FUNC(gcm394_base_video_device::video_707c_r)); // wrlshunt polls this waiting for 0x8000, is this some kind of manual port based data upload? 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? @@ -327,6 +333,9 @@ void sunplus_gcm394_base_device::internal_map(address_map &map) // 73xx-77xx = video ram // ###################################################################################################################################################################################### + map(0x007100, 0x0071ef).ram().share("unkram1"); // maybe a line table? (assuming DMA isn't writing to wrong place) + map(0x007200, 0x0072ef).ram().share("unkram2"); // ^^ + 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"); @@ -348,12 +357,12 @@ void sunplus_gcm394_base_device::internal_map(address_map &map) 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)); + // wrlshunt | smartfp + map(0x007820, 0x007820).w(FUNC(sunplus_gcm394_base_device::unkarea_7820_w)); // 7f8a (7f8a before DMA from ROM to RAM, 008a after DMA from ROM to RAM) | 3f04 + map(0x007821, 0x007821).w(FUNC(sunplus_gcm394_base_device::unkarea_7821_w)); // 7f47 | 0044 + map(0x007822, 0x007822).w(FUNC(sunplus_gcm394_base_device::unkarea_7822_w)); // 0047 | 1f44 + map(0x007823, 0x007823).w(FUNC(sunplus_gcm394_base_device::unkarea_7823_w)); // 0047 | 0044 + map(0x007824, 0x007824).w(FUNC(sunplus_gcm394_base_device::unkarea_7824_w)); // 0047 | 0044 map(0x00782d, 0x00782d).rw(FUNC(sunplus_gcm394_base_device::unkarea_782d_r), FUNC(sunplus_gcm394_base_device::unkarea_782d_w)); // on startup @@ -437,7 +446,7 @@ void sunplus_gcm394_base_device::device_start() m_space_read_cb.resolve_safe(0); m_space_write_cb.resolve(); - m_bank_write_cb.resolve(); + m_mapping_write_cb.resolve(); m_unk_timer = timer_alloc(0); @@ -524,12 +533,25 @@ void sunplus_gcm394_base_device::device_reset() } +IRQ_CALLBACK_MEMBER(sunplus_gcm394_base_device::irq_vector_cb) +{ + //printf("irq_vector_cb %d\n", irqline); + + if (irqline == UNSP_IRQ6_LINE) + set_state_unsynced(UNSP_IRQ6_LINE, CLEAR_LINE); + + return 0; +} + + 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) @@ -539,7 +561,8 @@ void sunplus_gcm394_base_device::device_timer(emu_timer &timer, device_timer_id case 0: { m_7935 |= 0x0100; - checkirq6(); + set_state_unsynced(UNSP_IRQ6_LINE, ASSERT_LINE); + // checkirq6(); break; } } diff --git a/src/devices/machine/sunplus_gcm394.h b/src/devices/machine/sunplus_gcm394.h index 01f2f13abca..1a6ae8f5619 100644 --- a/src/devices/machine/sunplus_gcm394.h +++ b/src/devices/machine/sunplus_gcm394.h @@ -32,7 +32,7 @@ public: m_porta_out(*this), m_space_read_cb(*this), m_space_write_cb(*this), - m_bank_write_cb(*this) + m_mapping_write_cb(*this) { } @@ -43,16 +43,17 @@ public: auto porta_out() { return m_porta_out.bind(); } - auto space_read_callback() { return m_space_read_cb.bind(); } auto space_write_callback() { return m_space_write_cb.bind(); } - auto bank_write_callback() { return m_bank_write_cb.bind(); } + auto mapping_write_callback() { return m_mapping_write_cb.bind(); } DECLARE_WRITE_LINE_MEMBER(vblank) { m_spg_video->vblank(state); } virtual void device_add_mconfig(machine_config& config) override; + IRQ_CALLBACK_MEMBER(irq_vector_cb); + protected: virtual void device_start() override; @@ -140,7 +141,7 @@ protected: private: devcb_read16 m_space_read_cb; devcb_write16 m_space_write_cb; - devcb_write16 m_bank_write_cb; + devcb_write16 m_mapping_write_cb; DECLARE_READ16_MEMBER(unk_r); DECLARE_WRITE16_MEMBER(unk_w); diff --git a/src/devices/machine/sunplus_gcm394_video.cpp b/src/devices/machine/sunplus_gcm394_video.cpp index 4a4095aa9bd..44a574e99bf 100644 --- a/src/devices/machine/sunplus_gcm394_video.cpp +++ b/src/devices/machine/sunplus_gcm394_video.cpp @@ -285,7 +285,7 @@ void gcm394_base_video_device::draw(const rectangle &cliprect, uint32_t line, ui } else { - pen = machine().rand() & 0x1f; + //pen = machine().rand() & 0x1f; // 8bpp } @@ -518,10 +518,10 @@ uint32_t gcm394_base_video_device::screen_update(screen_device &screen, bitmap_r { memset(&m_screenbuf[320 * cliprect.min_y], 0, 4 * 320 * ((cliprect.max_y - cliprect.min_y) + 1)); - const uint32_t page1_addr = 0x40 * m_page1_addr; - const uint32_t page2_addr = 0x40 * m_page2_addr; - uint16_t* page1_regs = m_tmap0_regs; - uint16_t* page2_regs = m_tmap1_regs; + const uint32_t page0_addr = 0x40 * (m_page0_addr | (m_page0_addr_msb<<16)); + const uint32_t page1_addr = 0x40 * (m_page1_addr | (m_page1_addr_msb<<16)); + uint16_t* page0_regs = m_tmap0_regs; + uint16_t* page1_regs = m_tmap1_regs; for (uint32_t scanline = (uint32_t)cliprect.min_y; scanline <= (uint32_t)cliprect.max_y; scanline++) { @@ -529,8 +529,8 @@ uint32_t gcm394_base_video_device::screen_update(screen_device &screen, bitmap_r { if (1) { + draw_page(cliprect, scanline, i, page0_addr, page0_regs); draw_page(cliprect, scanline, i, page1_addr, page1_regs); - draw_page(cliprect, scanline, i, page2_addr, page2_regs); } draw_sprites(cliprect, scanline, i); } @@ -595,15 +595,16 @@ WRITE16_MEMBER(gcm394_base_video_device::tmap0_regs_w) write_tmap_regs(0, m_tmap0_regs, offset, data); } -WRITE16_MEMBER(gcm394_base_video_device::tmap0_unk0_w) +WRITE16_MEMBER(gcm394_base_video_device::tmap0_tilebase_lsb_w) { - LOGMASKED(LOG_GCM394_TMAP, "%s:gcm394_base_video_device::tmap0_unk0_w %04x\n", machine().describe_context(), data); - m_page1_addr = data; + LOGMASKED(LOG_GCM394_TMAP, "%s:gcm394_base_video_device::tmap0_tilebase_lsb_w %04x\n", machine().describe_context(), data); + m_page0_addr = data; } -WRITE16_MEMBER(gcm394_base_video_device::tmap0_unk1_w) +WRITE16_MEMBER(gcm394_base_video_device::tmap0_tilebase_msb_w) { - LOGMASKED(LOG_GCM394_TMAP, "%s:gcm394_base_video_device::tmap0_unk1_w %04x\n", machine().describe_context(), data); + LOGMASKED(LOG_GCM394_TMAP, "%s:gcm394_base_video_device::tmap0_tilebase_msb_w %04x\n", machine().describe_context(), data); + m_page0_addr_msb = data; } // **************************************** TILEMAP 1 ************************************************* @@ -616,15 +617,16 @@ WRITE16_MEMBER(gcm394_base_video_device::tmap1_regs_w) write_tmap_regs(1, m_tmap1_regs, offset, data); } -WRITE16_MEMBER(gcm394_base_video_device::tmap1_unk0_w) +WRITE16_MEMBER(gcm394_base_video_device::tmap1_tilebase_lsb_w) { - LOGMASKED(LOG_GCM394_TMAP, "%s:gcm394_base_video_device::tmap1_unk0_w %04x\n", machine().describe_context(), data); - m_page2_addr = data; + LOGMASKED(LOG_GCM394_TMAP, "%s:gcm394_base_video_device::tmap1_tilebase_lsb_w %04x\n", machine().describe_context(), data); + m_page1_addr = data; } -WRITE16_MEMBER(gcm394_base_video_device::tmap1_unk1_w) +WRITE16_MEMBER(gcm394_base_video_device::tmap1_tilebase_msb_w) { - LOGMASKED(LOG_GCM394_TMAP, "%s:gcm394_base_video_device::tmap1_unk1_w %04x\n", machine().describe_context(), data); + LOGMASKED(LOG_GCM394_TMAP, "%s:gcm394_base_video_device::tmap1_tilebase_msb_w %04x\n", machine().describe_context(), data); + m_page1_addr_msb = data; } // **************************************** unknown video device 0 (another tilemap? sprite layer?) ************************************************* @@ -757,6 +759,11 @@ WRITE16_MEMBER(gcm394_base_video_device::video_dma_unk_w) } +READ16_MEMBER(gcm394_base_video_device::video_707c_r) +{ + LOGMASKED(LOG_GCM394_VIDEO, "%s:gcm394_base_video_device::video_707c_r\n", machine().describe_context()); + return 0x8000; +} READ16_MEMBER(gcm394_base_video_device::video_707f_r) { LOGMASKED(LOG_GCM394_VIDEO, "%s:gcm394_base_video_device::video_707f_r\n", machine().describe_context()); return m_707f; } @@ -791,7 +798,12 @@ WRITE16_MEMBER(gcm394_base_video_device::video_7063_w) WRITE16_MEMBER(gcm394_base_video_device::video_702a_w) { LOGMASKED(LOG_GCM394_VIDEO, "%s:gcm394_base_video_device::video_702a_w %04x\n", machine().describe_context(), data); m_702a = data; } // read in IRQ -READ16_MEMBER(gcm394_base_video_device::video_7030_r) { LOGMASKED(LOG_GCM394_VIDEO, "%s:gcm394_base_video_device::video_7030_r\n", machine().describe_context()); return m_7030; } +READ16_MEMBER(gcm394_base_video_device::video_7030_r) +{ + LOGMASKED(LOG_GCM394_VIDEO, "%s:gcm394_base_video_device::video_7030_r\n", machine().describe_context()); + return 0x0000; /* wrlshunt ends up doing an explicit jump to 0000 shortly after boot if you just return the value written here, what is it? do we want to be returning non-zero to continue, with the problem being elsewhere, or is this the problem? */ +} + WRITE16_MEMBER(gcm394_base_video_device::video_7030_w) { LOGMASKED(LOG_GCM394_VIDEO, "%s:gcm394_base_video_device::video_7030_w %04x\n", machine().describe_context(), data); m_7030 = data; } WRITE16_MEMBER(gcm394_base_video_device::video_703c_w) { LOGMASKED(LOG_GCM394_VIDEO, "%s:gcm394_base_video_device::video_703c_w %04x\n", machine().describe_context(), data); m_703c = data; } diff --git a/src/devices/machine/sunplus_gcm394_video.h b/src/devices/machine/sunplus_gcm394_video.h index 952e3bb9e46..0c4940bf53d 100644 --- a/src/devices/machine/sunplus_gcm394_video.h +++ b/src/devices/machine/sunplus_gcm394_video.h @@ -29,13 +29,13 @@ public: DECLARE_READ16_MEMBER(tmap0_regs_r); DECLARE_WRITE16_MEMBER(tmap0_regs_w); - DECLARE_WRITE16_MEMBER(tmap0_unk0_w); - DECLARE_WRITE16_MEMBER(tmap0_unk1_w); + DECLARE_WRITE16_MEMBER(tmap0_tilebase_lsb_w); + DECLARE_WRITE16_MEMBER(tmap0_tilebase_msb_w); DECLARE_READ16_MEMBER(tmap1_regs_r); DECLARE_WRITE16_MEMBER(tmap1_regs_w); - DECLARE_WRITE16_MEMBER(tmap1_unk0_w); - DECLARE_WRITE16_MEMBER(tmap1_unk1_w); + DECLARE_WRITE16_MEMBER(tmap1_tilebase_lsb_w); + DECLARE_WRITE16_MEMBER(tmap1_tilebase_msb_w); DECLARE_WRITE16_MEMBER(unknown_video_device0_regs_w); DECLARE_WRITE16_MEMBER(unknown_video_device0_unk0_w); @@ -69,6 +69,7 @@ public: DECLARE_WRITE16_MEMBER(video_7030_w); DECLARE_WRITE16_MEMBER(video_703c_w); + DECLARE_READ16_MEMBER(video_707c_r); DECLARE_READ16_MEMBER(video_707f_r); DECLARE_WRITE16_MEMBER(video_707f_w); @@ -155,8 +156,11 @@ protected: // required_shared_ptr<uint16_t> m_scrollram; required_shared_ptr<uint16_t> m_spriteram; + uint16_t m_page0_addr; + uint16_t m_page0_addr_msb; + uint16_t m_page1_addr; - uint16_t m_page2_addr; + uint16_t m_page1_addr_msb; uint16_t m_videodma_bank; uint16_t m_videodma_size; |