summaryrefslogtreecommitdiffstatshomepage
path: root/src/mame/drivers/xavix2.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'src/mame/drivers/xavix2.cpp')
-rw-r--r--src/mame/drivers/xavix2.cpp30
1 files changed, 30 insertions, 0 deletions
diff --git a/src/mame/drivers/xavix2.cpp b/src/mame/drivers/xavix2.cpp
index 094f4d129ef..cc859b478c0 100644
--- a/src/mame/drivers/xavix2.cpp
+++ b/src/mame/drivers/xavix2.cpp
@@ -45,6 +45,7 @@ private:
u16 m_dma_count;
emu_timer *m_dma_timer;
+ u16 m_gpu_adr;
u32 m_int_active;
std::string m_debug_string;
@@ -55,6 +56,9 @@ private:
void irq_clear_w(u16 data);
u8 irq_level_r();
+ void gpu_adr_w(u16 data);
+ void gpu_count_w(u16 data);
+
void dma_src_w(offs_t, u32 data, u32 mem_mask);
void dma_dst_w(offs_t, u16 data, u16 mem_mask);
void dma_count_w(offs_t, u16 data, u16 mem_mask);
@@ -114,6 +118,29 @@ bool xavix2_state::irq_state(u32 level) const
return m_int_active & (1 << level);
}
+void xavix2_state::gpu_adr_w(u16 data)
+{
+ m_gpu_adr = data;
+}
+
+void xavix2_state::gpu_count_w(u16 data)
+{
+ for(u32 i=0; i != data; i++) {
+ u64 command = m_maincpu->space(AS_PROGRAM).read_qword(m_gpu_adr + 8*i);
+ logerror("gpu %02d: %016x x=%03x y=%03x ?=%02x ?=%x ?=%02x ?=%02x ?=%02x c=%04x %s\n",
+ i, command,
+ (command >> 0) & 0x7ff,
+ (command >> 11) & 0x3ff,
+ (command >> 21) & 0xff,
+ (command >> 29) & 0x1,
+ (command >> 30) & 0x3f,
+ (command >> 36) & 0x3f,
+ (command >> 42) & 0x3f,
+ (command >> 48) & 0xffff,
+ machine().describe_context());
+ }
+}
+
void xavix2_state::dma_src_w(offs_t, u32 data, u32 mem_mask)
{
COMBINE_DATA(&m_dma_src);
@@ -243,6 +270,9 @@ void xavix2_state::mem(address_map &map)
map(0xffffe238, 0xffffe238).rw(FUNC(xavix2_state::debug_port_r), FUNC(xavix2_state::debug_port_w));
map(0xffffe239, 0xffffe239).r(FUNC(xavix2_state::debug_port_status_r));
+ map(0xffffe604, 0xffffe605).w(FUNC(xavix2_state::gpu_adr_w));
+ map(0xffffe606, 0xffffe607).w(FUNC(xavix2_state::gpu_count_w));
+
map(0xffffe60a, 0xffffe60a).lr8(NAME([]() { return 0x40; })); // pal/ntsc
map(0xffffe630, 0xffffe631).lr16(NAME([]() { return 0x210; }));
map(0xffffe632, 0xffffe633).lr16(NAME([]() { return 0x210; }));