Sprinter/mame
2
0
Fork 0
mirror of https://github.com/holub/mame synced 2025-04-24 09:20:02 +03:00
Code Issues Actions Packages Projects Releases Wiki Activity

bus/isa: Eliminate some region_alloc abuse (nw)

Browse Source
This commit is contained in:
AJR 2018-08-01 22:57:33 -04:00
parent c3b24e73b7
commit 86b497d9fb
3 changed files with 6 additions and 14 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
src/devices/bus/isa/ega.cpp
View File

@ -576,7 +576,7 @@ isa8_ega_device::isa8_ega_device(const machine_config &mconfig, const char *tag,
isa8_ega_device::isa8_ega_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock) :
device_t(mconfig, type, tag, owner, clock),
device_isa8_card_interface(mconfig, *this),
m_crtc_ega(nullptr), m_vram(nullptr), m_videoram(nullptr), m_charA(nullptr), m_charB(nullptr),
m_crtc_ega(nullptr), m_videoram(nullptr), m_charA(nullptr), m_charB(nullptr),
m_misc_output(0), m_feature_control(0), m_frame_cnt(0), m_hsync(0), m_vsync(0), m_vblank(0), m_display_enable(0), m_video_mode(0),
m_palette(*this, "palette")
{
@ -618,17 +618,13 @@ void isa8_ega_device::device_start()
memcpy(memregion(subtag("user2").c_str())->base(), memregion(subtag("user1").c_str())->base(), 0x4000);
/* Install 256KB Video ram on our EGA card */
m_vram = machine().memory().region_alloc(subtag("vram").c_str(), 256 * 1024, 1, ENDIANNESS_LITTLE);
m_vram = make_unique_clear<uint8_t[]>(256 * 1024);
m_videoram = m_vram->base();
m_videoram = m_vram.get();
m_plane[0] = m_videoram + 0x00000;
memset(m_plane[0], 0, sizeof(uint8_t) * 0x10000);
m_plane[1] = m_videoram + 0x10000;
memset(m_plane[1], 0, sizeof(uint8_t) * 0x10000);
m_plane[2] = m_videoram + 0x20000;
memset(m_plane[2], 0, sizeof(uint8_t) * 0x10000);
m_plane[3] = m_videoram + 0x30000;
memset(m_plane[3], 0, sizeof(uint8_t) * 0x10000);
m_crtc_ega = subdevice<crtc_ega_device>(EGA_CRTC_NAME);

2
src/devices/bus/isa/ega.h
View File

@ -66,7 +66,7 @@ public:
DECLARE_READ8_MEMBER(pc_ega8_3X0_r);
/* Video memory and related variables */
memory_region *m_vram;
std::unique_ptr<uint8_t[]> m_vram;
uint8_t *m_plane[4];
uint8_t m_read_latch[4];
uint8_t *m_videoram;

8
src/devices/bus/isa/pc1640_iga.cpp
View File

@ -95,17 +95,13 @@ void isa8_pc1640_iga_device::device_start()
}
/* Install 256KB Video ram on our EGA card */
m_vram = machine().memory().region_alloc(subtag("vram").c_str(), 256 * 1024, 1, ENDIANNESS_LITTLE);
m_vram = make_unique_clear<uint8_t[]>(256 * 1024);
m_videoram = m_vram->base();
m_videoram = m_vram.get();
m_plane[0] = m_videoram + 0x00000;
memset(m_plane[0], 0, sizeof(uint8_t) * 0x10000);
m_plane[1] = m_videoram + 0x10000;
memset(m_plane[1], 0, sizeof(uint8_t) * 0x10000);
m_plane[2] = m_videoram + 0x20000;
memset(m_plane[2], 0, sizeof(uint8_t) * 0x10000);
m_plane[3] = m_videoram + 0x30000;
memset(m_plane[3], 0, sizeof(uint8_t) * 0x10000);
m_crtc_ega = subdevice<crtc_ega_device>(EGA_CRTC_NAME);