URL https://opencores.org/ocsvn/zet86/zet86/trunk

Subversion Repositories zet86

[/] [zet86/] [trunk/] [soc/] [bios/] [rombios.c] - Diff between revs 44 and 45

Go to most recent revision | Show entire file | Details | Blame | View Log

Rev 44	Rev 45
Line 9...	Line 9...
`// $fff5 ; ASCII Date ROM was built - 8 characters in MM/DD/YY`	`// $fff5 ; ASCII Date ROM was built - 8 characters in MM/DD/YY`
`// $fffe ; System Model ID`	`// $fffe ; System Model ID`

`#include "rombios.h"`	`#include "rombios.h"`

	`#define BX_CPU 0`

`/* model byte 0xFC = AT */`	`/* model byte 0xFC = AT */`
`#define SYS_MODEL_ID 0xFC`	`#define SYS_MODEL_ID 0xFC`

`#ifndef BIOS_BUILD_DATE`	`#ifndef BIOS_BUILD_DATE`
`# define BIOS_BUILD_DATE "06/23/99"`	`# define BIOS_BUILD_DATE "06/23/99"`
Line 958...	Line 960...
`jmp halt2_loop`	`jmp halt2_loop`
`ASM_END`	`ASM_END`
`}`	`}`
`}`	`}`

`static char bios_svn_version_string[] = "$Revision: 1.10 $ $Date: 2009-02-19 19:06:56 $";`	`static char bios_svn_version_string[] = "$Revision: 1.11 $ $Date: 2009-03-02 01:02:32 $";`

`//--------------------------------------------------------------------------`	`//--------------------------------------------------------------------------`
`// print_bios_banner`	`// print_bios_banner`
`// displays a the bios version`	`// displays a the bios version`
`//--------------------------------------------------------------------------`	`//--------------------------------------------------------------------------`
Line 2099...	Line 2101...
`;; EBDA setup`	`;; EBDA setup`
`call ebda_post`	`call ebda_post`

`;; Keyboard`	`;; Keyboard`
`SET_INT_VECTOR(0x09, #0xF000, #int09_handler)`	`SET_INT_VECTOR(0x09, #0xF000, #int09_handler)`
`;SET_INT_VECTOR(0x16, #0xF000, #int16_handler)`	`SET_INT_VECTOR(0x16, #0xF000, #int16_handler)`

`xor ax, ax`	`xor ax, ax`
`mov ds, ax`	`mov ds, ax`
`mov 0x0417, al /* keyboard shift flags, set 1 */`	`mov 0x0417, al /* keyboard shift flags, set 1 */`
`mov 0x0418, al /* keyboard shift flags, set 2 */`	`mov 0x0418, al /* keyboard shift flags, set 2 */`
Line 2111...	Line 2113...
`mov 0x0471, al /* keyboard ctrl-break flag */`	`mov 0x0471, al /* keyboard ctrl-break flag */`
`mov 0x0497, al /* keyboard status flags 4 */`	`mov 0x0497, al /* keyboard status flags 4 */`
`mov al, #0x10`	`mov al, #0x10`
`mov 0x0496, al /* keyboard status flags 3 */`	`mov 0x0496, al /* keyboard status flags 3 */`


`/* keyboard head of buffer pointer */`	`/* keyboard head of buffer pointer */`
`mov bx, #0x001E`	`mov bx, #0x001E`
`mov 0x041A, bx`	`mov 0x041A, bx`

`/* keyboard end of buffer pointer */`	`/* keyboard end of buffer pointer */`
Line 2184...	Line 2185...
`push cx`	`push cx`
`push dx`	`push dx`
`push bx`	`push bx`
`push sp`	`push sp`
`mov bx, sp`	`mov bx, sp`
	`sseg`
`add [bx], #10`	`add [bx], #10`
	`sseg`
`mov bx, [bx+2]`	`mov bx, [bx+2]`
`push bp`	`push bp`
`push si`	`push si`
`push di`	`push di`

Line 2281...	Line 2284...
`;-------------------------------------------------`	`;-------------------------------------------------`
`.org 0xe987`	`.org 0xe987`
`int09_handler:`	`int09_handler:`
`cli`	`cli`
`push ax`	`push ax`

`in al, #0x60 ;;read key from keyboard controller`	`in al, #0x60 ;;read key from keyboard controller`
`sti`	`sti`

`push ds`	`push ds`
`;pusha ; we do this instead:`	`;pusha ; we do this instead:`

`push ax`	`push ax`
`push cx`	`push cx`
`push dx`	`push dx`
`push bx`	`push bx`
`push sp`	`push sp`
`mov bx, sp`	`mov bx, sp`
	`sseg`
`add [bx], #10`	`add [bx], #10`
	`sseg`
`mov bx, [bx+2]`	`mov bx, [bx+2]`
`push bp`	`push bp`
`push si`	`push si`
`push di`	`push di`

Line 2323...	Line 2328...

`int09_process_key:`	`int09_process_key:`
`mov bx, #0xf000`	`mov bx, #0xf000`
`mov ds, bx`	`mov ds, bx`
`call _int09_function`	`call _int09_function`

`int09_done:`	`int09_done:`
`; popa ; we do this instead:`	`; popa ; we do this instead:`
`pop di`	`pop di`
`pop si`	`pop si`
`pop bp`	`pop bp`
Line 2336...	Line 2340...
`pop dx`	`pop dx`
`pop cx`	`pop cx`
`pop ax`	`pop ax`

`pop ds`	`pop ds`
`cli`

	`cli`
`pop ax`	`pop ax`
`iret`	`iret`


`;----------`	`;----------`

Browse

Tools

Subversion Repositories zet86

[/] [zet86/] [trunk/] [soc/] [bios/] [rombios.c] - Diff between revs 44 and 45