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https://opencores.org/ocsvn/zet86/zet86/trunk
[/] [zet86/] [trunk/] [soc/] [bios/] [rombios.c] - Diff between revs 27 and 34
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| Rev 27 |
Rev 34 |
| Line 790... |
Line 790... |
jmp halt2_loop
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jmp halt2_loop
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ASM_END
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ASM_END
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}
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}
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}
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}
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static char bios_svn_version_string[] = "$Revision: 1.2 $ $Date: 2008-10-04 23:11:53 $";
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static char bios_svn_version_string[] = "$Revision: 1.3 $ $Date: 2008-10-13 00:24:30 $";
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//--------------------------------------------------------------------------
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//--------------------------------------------------------------------------
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// print_bios_banner
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// print_bios_banner
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// displays a the bios version
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// displays a the bios version
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//--------------------------------------------------------------------------
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//--------------------------------------------------------------------------
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| Line 1110... |
Line 1110... |
mov ds, bx
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mov ds, bx
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push ax ;; Save AX
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push ax ;; Save AX
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push di ;; Save DI
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push di ;; Save DI
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;; Push addr of ROM entry point
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;; Push addr of ROM entry point
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push cx ;; Push seg
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push cx ;; Push seg
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push #0x0003 ;; Push offset
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;; push #0x0003 ;; Push offset - not an 8086 valid operand
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mov ax, #0x0003
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push ax
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;; Point ES:DI at "$PnP", which tells the ROM that we are a PnP BIOS.
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;; Point ES:DI at "$PnP", which tells the ROM that we are a PnP BIOS.
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;; That should stop it grabbing INT 19h; we will use its BEV instead.
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;; That should stop it grabbing INT 19h; we will use its BEV instead.
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mov ax, #0xf000
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mov ax, #0xf000
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mov es, ax
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mov es, ax
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| Line 1268... |
Line 1270... |
mov cx, #0xc000 ;; init vga bios
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mov cx, #0xc000 ;; init vga bios
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mov ax, #0xc780
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mov ax, #0xc780
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call rom_scan
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call rom_scan
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call _print_bios_banner
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call _print_bios_banner
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hlt
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call _init_boot_vectors
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call _init_boot_vectors
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mov cx, #0xc800 ;; init option roms
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mov cx, #0xc800 ;; init option roms
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mov ax, #0xe000
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mov ax, #0xe000
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call rom_scan
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call rom_scan
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