Added a simple note

This commit is contained in:
Angelo Salese 2013-12-14 18:05:38 +00:00
parent d466a09b8b
commit 8c810f0ce3

View File

@ -983,6 +983,8 @@ READ32_MEMBER(hng64_state::tcram_r)
*/
READ32_MEMBER(hng64_state::unk_vreg_r)
{
// m_unk_vreg_toggle^=0x8000;
return 0;
// return ++m_unk_vreg_toggle;
@ -1856,8 +1858,8 @@ void hng64_state::m_set_irq(UINT32 irq_vector)
HNG64 writing to SYSTEM Registers 0x0000111c == 0x00000008. (PC=80009b6c) 3 3d fifo processed irq
HNG64 writing to SYSTEM Registers 0x0000111c == 0x00000200. (PC=80009b70) 9
HNG64 writing to SYSTEM Registers 0x0000111c == 0x00000400. (PC=80009b78) 10
HNG64 writing to SYSTEM Registers 0x0000111c == 0x00020000. (PC=80009b80) 17
HNG64 writing to SYSTEM Registers 0x0000111c == 0x00000800. (PC=80009b88) 11 network irq? needed by xrally and roadedge
HNG64 writing to SYSTEM Registers 0x0000111c == 0x00020000. (PC=80009b80) 17 MCU related irq
HNG64 writing to SYSTEM Registers 0x0000111c == 0x00000800. (PC=80009b88) 11 network irq, needed by xrally and roadedge
samsho64 / samsho64_2 does this during running:
HNG64 writing to SYSTEM Registers 0x0000111c == 0x00000000. (PC=800008fc) just checking?