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Added Cirrus Logic GD5428 emulation.

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As part of this, added emulation of the GD5428-based IBM 1MB SVGA Adapter/A,
along with support for external graphics cards on MCA platforms, adding the
ability to override the onboard VGA controller.
This commit is contained in:
SarahW 2020-02-01 16:30:34 +00:00
commit 68a2d8cb3c
14 changed files with 342 additions and 43 deletions
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4
src/sound_sb.c
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@ -999,7 +999,7 @@ void *sb_mcv_init()
sb_dsp_setdma8(&sb->dsp, device_get_config_int("dma"));
sound_add_handler(sb_get_buffer_sb2, sb);
/* I/O handlers activated in sb_mcv_write */
mca_add(sb_mcv_read, sb_mcv_write, sb);
mca_add(sb_mcv_read, sb_mcv_write, NULL, sb);
sb->pos_regs[0] = 0x84;
sb->pos_regs[1] = 0x50;
return sb;
@ -1124,7 +1124,7 @@ void *sb_pro_mcv_init()
sound_add_handler(sb_get_buffer_sbpro, sb);
/* I/O handlers activated in sb_pro_mcv_write */
mca_add(sb_pro_mcv_read, sb_pro_mcv_write, sb);
mca_add(sb_pro_mcv_read, sb_pro_mcv_write, NULL, sb);
sb->pos_regs[0] = 0x03;
sb->pos_regs[1] = 0x51;