dec0.c: convert slyspy tilemap protection to use bankdev [Alex Jackson]
This commit is contained in:
Alex W. Jackson
parent
cb29e21a1a
commit
2c80f93583
@ -166,7 +166,6 @@ Notes:
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#include "sound/2203intf.h"
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#include "sound/3812intf.h"
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#include "sound/okim6295.h"
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#include "sound/msm5205.h"
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/******************************************************************************/
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@ -396,100 +395,52 @@ READ16_MEMBER(dec0_state::slyspy_protection_r)
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*/
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WRITE16_MEMBER(dec0_state::unmapped_w)
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{
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// fall through for unmapped protection areas
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logerror("unmapped memory write to %04x = %04x in mode %d\n", 0x240000+offset*2, data, m_slyspy_state);
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}
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void slyspy_set_protection_map(running_machine& machine, int type);
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WRITE16_MEMBER(dec0_state::slyspy_state_w)
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{
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m_slyspy_state = 0;
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slyspy_set_protection_map(m_slyspy_state);
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m_pfprotect->set_bank(m_slyspy_state);
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}
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READ16_MEMBER(dec0_state::slyspy_state_r)
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{
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m_slyspy_state++;
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m_slyspy_state=m_slyspy_state%4;
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slyspy_set_protection_map(m_slyspy_state);
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m_slyspy_state = (m_slyspy_state + 1) % 4;
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m_pfprotect->set_bank(m_slyspy_state);
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return 0; /* Value doesn't mater */
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}
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void dec0_state::slyspy_set_protection_map( int type)
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{
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address_space& space = m_maincpu->space(AS_PROGRAM);
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space.install_write_handler( 0x240000, 0x24ffff, write16_delegate(FUNC(dec0_state::unmapped_w),this));
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space.install_write_handler( 0x24a000, 0x24a001, write16_delegate(FUNC(dec0_state::slyspy_state_w),this));
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space.install_read_handler( 0x244000, 0x244001, read16_delegate(FUNC(dec0_state::slyspy_state_r),this));
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switch (type)
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{
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case 0:
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space.install_write_handler(0x240000, 0x240007, write16_delegate(FUNC(deco_bac06_device::pf_control_0_w), (deco_bac06_device*)m_tilegen2));
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space.install_write_handler(0x240010, 0x240017, write16_delegate(FUNC(deco_bac06_device::pf_control_1_w), (deco_bac06_device*)m_tilegen2));
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space.install_write_handler(0x242000, 0x24207f, write16_delegate(FUNC(deco_bac06_device::pf_colscroll_w), (deco_bac06_device*)m_tilegen2));
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space.install_write_handler(0x242400, 0x2427ff, write16_delegate(FUNC(deco_bac06_device::pf_rowscroll_w), (deco_bac06_device*)m_tilegen2));
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space.install_write_handler(0x246000, 0x247fff, write16_delegate(FUNC(deco_bac06_device::pf_data_w), (deco_bac06_device*)m_tilegen2));
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space.install_write_handler(0x248000, 0x280007, write16_delegate(FUNC(deco_bac06_device::pf_control_0_w), (deco_bac06_device*)m_tilegen1));
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space.install_write_handler(0x248010, 0x280017, write16_delegate(FUNC(deco_bac06_device::pf_control_1_w), (deco_bac06_device*)m_tilegen1));
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space.install_write_handler(0x24c000, 0x24c07f, write16_delegate(FUNC(deco_bac06_device::pf_colscroll_w), (deco_bac06_device*)m_tilegen1));
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space.install_write_handler(0x24c400, 0x24c7ff, write16_delegate(FUNC(deco_bac06_device::pf_rowscroll_w), (deco_bac06_device*)m_tilegen1));
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space.install_write_handler(0x24e000, 0x24ffff, write16_delegate(FUNC(deco_bac06_device::pf_data_w), (deco_bac06_device*)m_tilegen1));
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break;
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case 1:
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// 0x240000 - 0x241fff not mapped
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// 0x242000 - 0x243fff not mapped
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// 0x246000 - 0x247fff not mapped
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space.install_write_handler(0x248000, 0x249fff, write16_delegate(FUNC(deco_bac06_device::pf_data_w), (deco_bac06_device*)m_tilegen1));
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space.install_write_handler(0x24c000, 0x24dfff, write16_delegate(FUNC(deco_bac06_device::pf_data_w), (deco_bac06_device*)m_tilegen2));
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// 0x24e000 - 0x24ffff not mapped
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break;
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case 2:
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space.install_write_handler(0x240000, 0x241fff, write16_delegate(FUNC(deco_bac06_device::pf_data_w), (deco_bac06_device*)m_tilegen2));
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space.install_write_handler(0x242000, 0x243fff, write16_delegate(FUNC(deco_bac06_device::pf_data_w), (deco_bac06_device*)m_tilegen1));
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// 0x242000 - 0x243fff not mapped
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// 0x246000 - 0x247fff not mapped
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// 0x248000 - 0x249fff not mapped
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// 0x24c000 - 0x24dfff not mapped
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space.install_write_handler(0x24e000, 0x24ffff, write16_delegate(FUNC(deco_bac06_device::pf_data_w), (deco_bac06_device*)m_tilegen1));
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break;
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case 3:
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space.install_write_handler(0x240000, 0x241fff, write16_delegate(FUNC(deco_bac06_device::pf_data_w), (deco_bac06_device*)m_tilegen1));
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// 0x242000 - 0x243fff not mapped
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// 0x246000 - 0x247fff not mapped
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space.install_write_handler(0x248000, 0x249fff, write16_delegate(FUNC(deco_bac06_device::pf_data_w), (deco_bac06_device*)m_tilegen2));
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// 0x24c000 - 0x24dfff not mapped
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// 0x24e000 - 0x24ffff not mapped
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break;
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}
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}
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static ADDRESS_MAP_START( slyspy_protection_map, AS_PROGRAM, 16, dec0_state )
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AM_RANGE(0x04000, 0x04001) AM_MIRROR(0x30000) AM_READ(slyspy_state_r)
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AM_RANGE(0x0a000, 0x0a001) AM_MIRROR(0x30000) AM_WRITE(slyspy_state_w)
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// Default state (called by Traps 1, 3, 4, 7, C)
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AM_RANGE(0x00000, 0x00007) AM_DEVWRITE("tilegen2", deco_bac06_device, pf_control_0_w)
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AM_RANGE(0x00010, 0x00017) AM_DEVWRITE("tilegen2", deco_bac06_device, pf_control_1_w)
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AM_RANGE(0x02000, 0x0207f) AM_DEVWRITE("tilegen2", deco_bac06_device, pf_colscroll_w)
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AM_RANGE(0x02400, 0x027ff) AM_DEVWRITE("tilegen2", deco_bac06_device, pf_rowscroll_w)
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AM_RANGE(0x06000, 0x07fff) AM_DEVWRITE("tilegen2", deco_bac06_device, pf_data_w)
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AM_RANGE(0x08000, 0x08007) AM_DEVWRITE("tilegen1", deco_bac06_device, pf_control_0_w)
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AM_RANGE(0x08010, 0x08017) AM_DEVWRITE("tilegen1", deco_bac06_device, pf_control_1_w)
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AM_RANGE(0x0c000, 0x0c07f) AM_DEVWRITE("tilegen1", deco_bac06_device, pf_colscroll_w)
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AM_RANGE(0x0c400, 0x0c7ff) AM_DEVWRITE("tilegen1", deco_bac06_device, pf_rowscroll_w)
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AM_RANGE(0x0e000, 0x0ffff) AM_DEVWRITE("tilegen1", deco_bac06_device, pf_data_w)
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// State 1 (Called by Trap 9)
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AM_RANGE(0x18000, 0x19fff) AM_DEVWRITE("tilegen1", deco_bac06_device, pf_data_w)
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AM_RANGE(0x1c000, 0x1dfff) AM_DEVWRITE("tilegen2", deco_bac06_device, pf_data_w)
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// State 2 (Called by Trap A)
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AM_RANGE(0x20000, 0x21fff) AM_DEVWRITE("tilegen2", deco_bac06_device, pf_data_w)
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AM_RANGE(0x22000, 0x23fff) AM_DEVWRITE("tilegen1", deco_bac06_device, pf_data_w)
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AM_RANGE(0x2e000, 0x2ffff) AM_DEVWRITE("tilegen1", deco_bac06_device, pf_data_w)
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// State 3 (Called by Trap B)
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AM_RANGE(0x30000, 0x31fff) AM_DEVWRITE("tilegen1", deco_bac06_device, pf_data_w)
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AM_RANGE(0x38000, 0x39fff) AM_DEVWRITE("tilegen2", deco_bac06_device, pf_data_w)
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ADDRESS_MAP_END
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static ADDRESS_MAP_START( slyspy_map, AS_PROGRAM, 16, dec0_state )
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AM_RANGE(0x000000, 0x05ffff) AM_ROM
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/* The location of p1 & pf2 can change in the 240000 - 24ffff region according to protection */
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/* The location of pf1 & pf2 can change in the 240000 - 24ffff region according to protection */
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AM_RANGE(0x240000, 0x24ffff) AM_DEVICE("pfprotect", address_map_bank_device, amap16)
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/* Pf3 is unaffected by protection */
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AM_RANGE(0x300000, 0x300007) AM_DEVWRITE("tilegen3", deco_bac06_device, pf_control_0_w)
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@ -1618,7 +1569,8 @@ MACHINE_CONFIG_END
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MACHINE_RESET_MEMBER(dec0_state,slyspy)
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{
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// set initial memory map
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slyspy_set_protection_map(0);
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m_slyspy_state = 0;
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m_pfprotect->set_bank(m_slyspy_state);
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}
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static MACHINE_CONFIG_DERIVED( slyspy, dec1 )
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@ -1631,6 +1583,13 @@ static MACHINE_CONFIG_DERIVED( slyspy, dec1 )
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MCFG_CPU_ADD("audiocpu", H6280, XTAL_12MHz/2/3) /* verified on pcb (6Mhz is XIN on pin 10 of H6280, verified on pcb */
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MCFG_CPU_PROGRAM_MAP(slyspy_s_map)
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MCFG_DEVICE_ADD("pfprotect", ADDRESS_MAP_BANK, 0)
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MCFG_DEVICE_PROGRAM_MAP(slyspy_protection_map)
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MCFG_ADDRESS_MAP_BANK_ENDIANNESS(ENDIANNESS_BIG)
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MCFG_ADDRESS_MAP_BANK_DATABUS_WIDTH(16)
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MCFG_ADDRESS_MAP_BANK_ADDRBUS_WIDTH(18)
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MCFG_ADDRESS_MAP_BANK_STRIDE(0x10000)
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/* video hardware */
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MCFG_SCREEN_MODIFY("screen")
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MCFG_SCREEN_UPDATE_DRIVER(dec0_state, screen_update_slyspy)
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@ -1,3 +1,4 @@
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#include "machine/bankdev.h"
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#include "video/decbac06.h"
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#include "video/decmxc06.h"
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#include "sound/msm5205.h"
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@ -16,6 +17,7 @@ public:
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m_tilegen2(*this, "tilegen2"),
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m_tilegen3(*this, "tilegen3"),
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m_spritegen(*this, "spritegen"),
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m_pfprotect(*this, "pfprotect"),
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m_maincpu(*this, "maincpu"),
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m_audiocpu(*this, "audiocpu"),
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m_subcpu(*this, "sub"),
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@ -34,6 +36,8 @@ public:
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optional_device<deco_bac06_device> m_tilegen3;
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optional_device<deco_mxc06_device> m_spritegen;
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optional_device<address_map_bank_device> m_pfprotect;
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int m_GAME;
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int m_i8751_return;
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int m_i8751_command;
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@ -47,7 +51,6 @@ public:
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DECLARE_WRITE16_MEMBER(dec0_control_w);
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DECLARE_WRITE16_MEMBER(slyspy_control_w);
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DECLARE_WRITE16_MEMBER(midres_sound_w);
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DECLARE_WRITE16_MEMBER(unmapped_w);
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DECLARE_READ16_MEMBER(slyspy_controls_r);
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DECLARE_READ16_MEMBER(slyspy_protection_r);
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DECLARE_WRITE16_MEMBER(slyspy_state_w);
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@ -91,7 +94,6 @@ public:
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void dec0_i8751_write(int data);
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void dec0_i8751_reset();
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void h6280_decrypt(const char *cputag);
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void slyspy_set_protection_map( int type);
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DECLARE_WRITE_LINE_MEMBER(sound_irq);
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DECLARE_WRITE_LINE_MEMBER(sound_irq2);
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required_device<cpu_device> m_maincpu;
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