Sprinter/mame
2
0
Fork 0
mirror of https://github.com/holub/mame synced 2025-06-01 02:21:48 +03:00
Code Issues Actions 3 Packages Projects Releases Wiki Activity

more peripheral logic + notes (nw)

Browse Source
This commit is contained in:
mamehaze 2015-03-08 12:41:08 +00:00
parent 37bf50f2bc
commit cb5a18860a
2 changed files with 108 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

97
src/emu/cpu/nec/v53.c
View File

@ -1,5 +1,12 @@
/* V53 */
// V33 / V33A cores with onboard peripherals
// Interrupt Controller is uPD71059 equivalent
// DMA Controller can operate in modes providing a subset of the uPD71071 or uPD71037 functionality (some modes unavailable / settings ignored)
// Serial Controller is based on the uPD71051 but with some changes
// Timer Unit is functionally identical to uPD71054
#include "emu.h"
#include "v53.h"
@ -193,24 +200,35 @@ void v53_base_device::install_peripheral_io()
if (m_OPSEL & 0x01) // DMA Unit available
{
if (IOAG) // 8-bit
if (m_SCTL & 0x02) // uPD71037 mode
{
if (IOAG) // 8-bit
{
}
else
{
}
}
else
{
}
}
if (m_OPSEL & 0x02) // Interupt Control Unit available
{
UINT16 base = (m_OPHA << 8) | m_IULA;
if (IOAG) // 8-bit
{
}
else
{
space(AS_IO).install_readwrite_handler(base+0x00, base+0x01, read8_delegate(FUNC(v53_base_device::icu_0_r), this), write8_delegate(FUNC(v53_base_device::icu_0_w), this), 0x00ff);
space(AS_IO).install_readwrite_handler(base+0x02, base+0x03, read8_delegate(FUNC(v53_base_device::icu_1_r), this), write8_delegate(FUNC(v53_base_device::icu_1_w), this), 0x00ff);
}
}
@ -218,7 +236,7 @@ void v53_base_device::install_peripheral_io()
if (m_OPSEL & 0x04) // Timer Control Unit available
{
UINT16 base = (m_OPHA << 8) | m_TULA;
printf("installing TCU to %04x\n", base);
//printf("installing TCU to %04x\n", base);
if (IOAG) // 8-bit
{
@ -235,19 +253,90 @@ void v53_base_device::install_peripheral_io()
if (m_OPSEL & 0x08) // Serial Control Unit available
{
UINT16 base = (m_OPHA << 8) | m_SULA;
if (IOAG) // 8-bit
{
}
else
{
space(AS_IO).install_readwrite_handler(base+0x00, base+0x01, read8_delegate(FUNC(v53_base_device::scu_srb_r), this), write8_delegate(FUNC(v53_base_device::scu_stb_w), this), 0x00ff);
space(AS_IO).install_readwrite_handler(base+0x02, base+0x03, read8_delegate(FUNC(v53_base_device::scu_sst_r), this), write8_delegate(FUNC(v53_base_device::scu_scm_w), this), 0x00ff);
space(AS_IO).install_write_handler(base+0x04, base+0x05, write8_delegate(FUNC(v53_base_device::scu_smd_w), this), 0x00ff);
space(AS_IO).install_readwrite_handler(base+0x06, base+0x07, read8_delegate(FUNC(v53_base_device::scu_simk_r), this), write8_delegate(FUNC(v53_base_device::scu_simk_w), this), 0x00ff);
}
}
}
/*** ICU ***/
READ8_MEMBER(v53_base_device::icu_0_r)
{
printf("v53: icu_0_r\n");
return 0;
}
WRITE8_MEMBER(v53_base_device::icu_0_w)
{
printf("v53: icu_0_w %02x\n", data);
}
READ8_MEMBER(v53_base_device::icu_1_r)
{
printf("v53: icu_1_r\n");
return 0;
}
WRITE8_MEMBER(v53_base_device::icu_1_w)
{
printf("v53: icu_1_w %02x\n", data);
}
/*** SCU ***/
READ8_MEMBER(v53_base_device::scu_srb_r)
{
printf("v53: scu_srb_r\n");
return 0;
}
WRITE8_MEMBER(v53_base_device::scu_stb_w)
{
printf("v53: scu_stb_w %02x\n", data);
}
READ8_MEMBER(v53_base_device::scu_sst_r)
{
printf("v53: scu_sst_r\n");
return 0;
}
WRITE8_MEMBER(v53_base_device::scu_scm_w)
{
printf("v53: scu_scm_w %02x\n", data);
}
WRITE8_MEMBER(v53_base_device::scu_smd_w)
{
printf("v53: scu_smd_w %02x\n", data);
}
READ8_MEMBER(v53_base_device::scu_simk_r)
{
printf("v53: scu_simk_r\n");
return 0;
}
WRITE8_MEMBER(v53_base_device::scu_simk_w)
{
printf("v53: scu_simk_w %02x\n", data);
}
/*** TCU ***/
READ8_MEMBER(v53_base_device::tmu_tst0_r)

15
src/emu/cpu/nec/v53.h
View File

@ -48,6 +48,21 @@ public:
DECLARE_WRITE8_MEMBER(tmu_tct2_w);
DECLARE_WRITE8_MEMBER(tmu_tmd_w);
// SCU
DECLARE_READ8_MEMBER(scu_srb_r);
DECLARE_WRITE8_MEMBER(scu_stb_w);
DECLARE_READ8_MEMBER(scu_sst_r);
DECLARE_WRITE8_MEMBER(scu_scm_w);
DECLARE_WRITE8_MEMBER(scu_smd_w);
DECLARE_READ8_MEMBER(scu_simk_r);
DECLARE_WRITE8_MEMBER(scu_simk_w);
// ICU
DECLARE_READ8_MEMBER(icu_0_r);
DECLARE_WRITE8_MEMBER(icu_0_w);
DECLARE_READ8_MEMBER(icu_1_r);
DECLARE_WRITE8_MEMBER(icu_1_w);
void install_peripheral_io();
const address_space_config m_io_space_config;