Boot_code/BIOS: Split the litedram init off to a separate file and included the brainfuck compiler in the bios as a demo for the ram
This commit is contained in:
parent
2fcc521f12
commit
84be5eed67
286
boot_code/LiteDram_init.asm
Normal file
286
boot_code/LiteDram_init.asm
Normal file
@ -0,0 +1,286 @@
|
||||
litedram_init:
|
||||
mov bx,#initdram_txt
|
||||
call print
|
||||
|
||||
WAIT_PLL:
|
||||
inw #0x20
|
||||
test al,#0x04
|
||||
jz WAIT_PLL
|
||||
;;; DO ALL INIT STUFF ;;;
|
||||
|
||||
;////sdram_software_control_on///
|
||||
MOV BX,#0x0000
|
||||
MOV AX,#0x000E
|
||||
call sdram_dfii_control_write
|
||||
;/////////////////////////////////
|
||||
|
||||
MOV BX,#0x0000
|
||||
MOV AX,#0x0000
|
||||
CALL ddrctrl_init_done_write
|
||||
|
||||
mov bx,#0x0000
|
||||
mov ax,#0x0000
|
||||
call ddrctrl_init_error_write
|
||||
|
||||
mov bx,#0x0000
|
||||
mov ax,#0x000C
|
||||
call sdram_dfii_control_write
|
||||
|
||||
MOV DL,#0xF0
|
||||
DELAY11:
|
||||
MOV AX,#0xF000
|
||||
DELAY1:
|
||||
INC AX
|
||||
JNZ DELAY1
|
||||
INC DL
|
||||
JNZ DELAY11
|
||||
|
||||
MOV BX,#0x0000
|
||||
MOV AX,#0x0000
|
||||
call sdram_dfii_pi0_address_write
|
||||
|
||||
mov bx,#0x0000
|
||||
mov ax,#0x0000
|
||||
call sdram_dfii_pi0_baddress_write
|
||||
|
||||
mov bx,#0x0000
|
||||
mov ax,#0x000E
|
||||
call sdram_dfii_control_write
|
||||
|
||||
MOV DL,#0xF0
|
||||
DELAY21:
|
||||
MOV AX,#0xF000
|
||||
DELAY2:
|
||||
INC AX
|
||||
JNZ DELAY2
|
||||
INC DL
|
||||
JNZ DELAY21
|
||||
|
||||
MOV BX,#0x0000
|
||||
MOV AX,#0x0200
|
||||
call sdram_dfii_pi0_address_write
|
||||
mov bx,#0x0000
|
||||
mov ax,#0x0002
|
||||
call sdram_dfii_pi0_baddress_write
|
||||
mov bx,#0x0000
|
||||
mov ax,#0x000F
|
||||
call command_p0
|
||||
|
||||
|
||||
MOV BX,#0x0000
|
||||
MOV AX,#0x0000
|
||||
call sdram_dfii_pi0_address_write
|
||||
mov bx,#0x0000
|
||||
mov ax,#0x0003
|
||||
call sdram_dfii_pi0_baddress_write
|
||||
mov bx,#0x0000
|
||||
mov ax,#0x000F
|
||||
call command_p0
|
||||
|
||||
|
||||
MOV BX,#0x0000
|
||||
MOV AX,#0x0006
|
||||
call sdram_dfii_pi0_address_write
|
||||
mov bx,#0x0000
|
||||
mov ax,#0x0001
|
||||
call sdram_dfii_pi0_baddress_write
|
||||
mov bx,#0x0000
|
||||
mov ax,#0x000F
|
||||
call command_p0
|
||||
|
||||
|
||||
MOV BX,#0x0000
|
||||
MOV AX,#0x0320
|
||||
call sdram_dfii_pi0_address_write
|
||||
mov bx,#0x0000
|
||||
mov ax,#0x0000
|
||||
call sdram_dfii_pi0_baddress_write
|
||||
mov bx,#0x0000
|
||||
mov ax,#0x000F
|
||||
call command_p0
|
||||
|
||||
MOV DL,#0xF0
|
||||
DELAY31:
|
||||
MOV AX,#0xF000
|
||||
DELAY3:
|
||||
INC AX
|
||||
JNZ DELAY3
|
||||
INC DL
|
||||
JNZ DELAY31
|
||||
|
||||
MOV BX,#0x0000
|
||||
MOV AX,#0x0400
|
||||
call sdram_dfii_pi0_address_write
|
||||
mov bx,#0x0000
|
||||
mov ax,#0x0000
|
||||
call sdram_dfii_pi0_baddress_write
|
||||
mov bx,#0x0000
|
||||
mov ax,#0x0003
|
||||
call command_p0
|
||||
|
||||
|
||||
;////sdram_software_control_off///
|
||||
MOV BX,#0x0000
|
||||
MOV AX,#0x0001
|
||||
call sdram_dfii_control_write
|
||||
;////////////////////////////////
|
||||
|
||||
;Signify end of init
|
||||
MOV BX,#0x0000
|
||||
MOV AX,#0x0001
|
||||
CALL ddrctrl_init_done_write
|
||||
|
||||
;;;;;;;;;; PROBABLY NOT NECESSARY
|
||||
MOV DL,#0xF0
|
||||
DELAY41:
|
||||
MOV AX,#0xF000
|
||||
DELAY4:
|
||||
INC AX
|
||||
JNZ DELAY4
|
||||
INC DL
|
||||
JNZ DELAY41
|
||||
|
||||
|
||||
;;; CHECK ;;;
|
||||
inw #0x20
|
||||
test al,#0x01
|
||||
jz failram
|
||||
mov bx,#OK_txt
|
||||
call print
|
||||
JMP FINISHED_DDR
|
||||
failram:
|
||||
mov bx,#FAIL_txt
|
||||
call print
|
||||
mov bx,#NOT_RDY_txt
|
||||
call print
|
||||
|
||||
inw #0x20
|
||||
test al,#0x02
|
||||
jz skip_err
|
||||
mov bx,#ERR_ASRT_txt
|
||||
call print
|
||||
skip_err:
|
||||
|
||||
inw #0x20
|
||||
test al,#0x04
|
||||
jnz skip_pll
|
||||
mov bx,#PLL_ERR_txt
|
||||
call print
|
||||
skip_pll:
|
||||
hlt
|
||||
|
||||
|
||||
FINISHED_DDR:
|
||||
|
||||
MOV DI,#0x0700
|
||||
MOV AX,#0xAAAA
|
||||
MOV [DI],AX
|
||||
MOV AX,#0x6666
|
||||
MOV AX,[DI]
|
||||
CMP AX,#0xAAAA
|
||||
JNZ FAILED
|
||||
MOV BX,#MEMTEST_PASS
|
||||
CALL print
|
||||
RET
|
||||
|
||||
FAILED:
|
||||
MOV BX,#MEMTEST_FAIL
|
||||
CALL print
|
||||
HLT
|
||||
|
||||
;;; HELPER FUNCTION
|
||||
command_p0:
|
||||
call WISHBONE_SET_DATA
|
||||
MOV AX,#0x0401 ;ORIG=0x1804L
|
||||
CALL WISHBONE_SET_ADDRESS
|
||||
CALL DO_WRITE_TRANSACTION
|
||||
MOV AX,#0x0001
|
||||
MOV BX,#0x0000
|
||||
call WISHBONE_SET_DATA
|
||||
MOV AX,#0x0402 ;ORIG=0x1808L
|
||||
CALL WISHBONE_SET_ADDRESS
|
||||
CALL DO_WRITE_TRANSACTION
|
||||
ret
|
||||
|
||||
#AX: Lower 16 bits data
|
||||
#BX: Upper 16 bits data
|
||||
sdram_dfii_pi0_address_write:
|
||||
call WISHBONE_SET_DATA
|
||||
MOV AX,#0x0403 ;ORIG=0x180cL
|
||||
CALL WISHBONE_SET_ADDRESS
|
||||
CALL DO_WRITE_TRANSACTION
|
||||
ret
|
||||
|
||||
sdram_dfii_pi0_baddress_write:
|
||||
call WISHBONE_SET_DATA
|
||||
MOV AX,#0x0404 ;ORIG=0x1810L
|
||||
CALL WISHBONE_SET_ADDRESS
|
||||
CALL DO_WRITE_TRANSACTION
|
||||
ret
|
||||
|
||||
sdram_dfii_control_write:
|
||||
call WISHBONE_SET_DATA
|
||||
MOV AX,#0x0400 ;ORIG=0x1800L
|
||||
CALL WISHBONE_SET_ADDRESS
|
||||
CALL DO_WRITE_TRANSACTION
|
||||
ret
|
||||
|
||||
ddrctrl_init_done_write:
|
||||
call WISHBONE_SET_DATA
|
||||
MOV AX,#0x0000 ;ORIG=0x0L
|
||||
CALL WISHBONE_SET_ADDRESS
|
||||
CALL DO_WRITE_TRANSACTION
|
||||
ret
|
||||
|
||||
ddrctrl_init_error_write:
|
||||
call WISHBONE_SET_DATA
|
||||
MOV AX,#0x0001 ;ORIG=0x4L
|
||||
CALL WISHBONE_SET_ADDRESS
|
||||
CALL DO_WRITE_TRANSACTION
|
||||
ret
|
||||
;
|
||||
DO_WRITE_TRANSACTION:
|
||||
mov ax,#0x01
|
||||
outw #0x46
|
||||
mov bl,#0x01
|
||||
WB_WRITE_LOOP:
|
||||
inc bl
|
||||
jz WB_WRITE_TIMEOUT
|
||||
inw #0x44
|
||||
test al,#0x01
|
||||
jz WB_WRITE_LOOP
|
||||
test al,#0x04
|
||||
jnz WB_WRITE_ERR
|
||||
ret
|
||||
WB_WRITE_TIMEOUT:
|
||||
mov bx,#WISHBONE_TIMEOUT_txt
|
||||
call print
|
||||
hlt
|
||||
WB_WRITE_ERR:
|
||||
mov bx,#WISHBONE_ERROR_txt
|
||||
call print
|
||||
hlt
|
||||
|
||||
#AX: address
|
||||
WISHBONE_SET_ADDRESS:
|
||||
outw #0x44
|
||||
ret
|
||||
|
||||
#AX: Lower 16bits
|
||||
#BX: Upper 16bits
|
||||
WISHBONE_SET_DATA:
|
||||
outw #0x40
|
||||
MOV AX,BX
|
||||
outw #0x42
|
||||
ret
|
||||
|
||||
initdram_txt: .ASCII 'Init LiteDram: \0'
|
||||
OK_txt: .ASCII 'OK\n\0'
|
||||
PLL_ERR_txt: .ASCII 'PLL_ERR \0' ; PLL_ERR: pll_lock is not asserted
|
||||
ERR_ASRT_txt: .ASCII 'ERR_ASRT \0' ; ERR_ASRT: init_error is asserted
|
||||
NOT_RDY_txt: .ASCII 'NOT_RDY \0' ; NOT READY: init_done is not asserted
|
||||
FAIL_txt: .ASCII 'FAIL\n\0'
|
||||
WISHBONE_TIMEOUT_txt: .ASCII 'FAIL\nWISHBONE TIMEOUT\0'
|
||||
WISHBONE_ERROR_txt: .ASCII 'FAIL\nWISHBONE ERROR\0'
|
||||
MEMTEST_PASS: .ASCII 'MEMTEST PASSED\n\0'
|
||||
MEMTEST_FAIL: .ASCII 'MEMTEST FAILED\n\0'
|
||||
@ -12,6 +12,7 @@ brainfuck_interpreted.bin: brainfuck_interpreter_v0.asm hello_9086.bf.asm dos_la
|
||||
brainfuck_compiled.bin: brainfuck_compiler_v1.asm hello_9086.bf.asm dos_layer.asm
|
||||
brainfuck_mandelbrot.bin: brainfuck_compiler_v1.asm mandelbrot.bf.asm dos_layer.asm
|
||||
colored_led.bin: dos_layer.asm
|
||||
bios.bin: LiteDram_init.asm brainfuck_compiler_v1.asm
|
||||
|
||||
fibonacci.bin: helpers.asm
|
||||
gnome_sort.bin: helpers.asm
|
||||
|
||||
@ -1,367 +1,13 @@
|
||||
.org 0xF800
|
||||
mov sp,#STACK
|
||||
mov bx,#initdram_txt
|
||||
call print
|
||||
call litedram_init
|
||||
call INIT_INT_VECT_TABLE
|
||||
INCLUDE brainfuck_compiler_v1.asm
|
||||
prog:
|
||||
INCLUDE hello_9086.bf.asm
|
||||
|
||||
WAIT_PLL:
|
||||
inw #0x20
|
||||
test al,#0x04
|
||||
jz WAIT_PLL
|
||||
;;; DO ALL INIT STUFF ;;;
|
||||
|
||||
;////sdram_software_control_on///
|
||||
MOV BX,#0x0000
|
||||
MOV AX,#0x000E
|
||||
call sdram_dfii_control_write
|
||||
;/////////////////////////////////
|
||||
|
||||
MOV BX,#0x0000
|
||||
MOV AX,#0x0000
|
||||
CALL ddrctrl_init_done_write
|
||||
|
||||
mov bx,#0x0000
|
||||
mov ax,#0x0000
|
||||
call ddrctrl_init_error_write
|
||||
|
||||
mov bx,#0x0000
|
||||
mov ax,#0x000C
|
||||
call sdram_dfii_control_write
|
||||
|
||||
MOV DL,#0xF0
|
||||
DELAY11:
|
||||
MOV AX,#0xF000
|
||||
DELAY1:
|
||||
INC AX
|
||||
JNZ DELAY1
|
||||
INC DL
|
||||
JNZ DELAY11
|
||||
|
||||
MOV BX,#0x0000
|
||||
MOV AX,#0x0000
|
||||
call sdram_dfii_pi0_address_write
|
||||
|
||||
mov bx,#0x0000
|
||||
mov ax,#0x0000
|
||||
call sdram_dfii_pi0_baddress_write
|
||||
|
||||
mov bx,#0x0000
|
||||
mov ax,#0x000E
|
||||
call sdram_dfii_control_write
|
||||
|
||||
MOV DL,#0xF0
|
||||
DELAY21:
|
||||
MOV AX,#0xF000
|
||||
DELAY2:
|
||||
INC AX
|
||||
JNZ DELAY2
|
||||
INC DL
|
||||
JNZ DELAY21
|
||||
|
||||
MOV BX,#0x0000
|
||||
MOV AX,#0x0200
|
||||
call sdram_dfii_pi0_address_write
|
||||
mov bx,#0x0000
|
||||
mov ax,#0x0002
|
||||
call sdram_dfii_pi0_baddress_write
|
||||
mov bx,#0x0000
|
||||
mov ax,#0x000F
|
||||
call command_p0
|
||||
|
||||
|
||||
MOV BX,#0x0000
|
||||
MOV AX,#0x0000
|
||||
call sdram_dfii_pi0_address_write
|
||||
mov bx,#0x0000
|
||||
mov ax,#0x0003
|
||||
call sdram_dfii_pi0_baddress_write
|
||||
mov bx,#0x0000
|
||||
mov ax,#0x000F
|
||||
call command_p0
|
||||
|
||||
|
||||
MOV BX,#0x0000
|
||||
MOV AX,#0x0006
|
||||
call sdram_dfii_pi0_address_write
|
||||
mov bx,#0x0000
|
||||
mov ax,#0x0001
|
||||
call sdram_dfii_pi0_baddress_write
|
||||
mov bx,#0x0000
|
||||
mov ax,#0x000F
|
||||
call command_p0
|
||||
|
||||
|
||||
MOV BX,#0x0000
|
||||
MOV AX,#0x0320
|
||||
call sdram_dfii_pi0_address_write
|
||||
mov bx,#0x0000
|
||||
mov ax,#0x0000
|
||||
call sdram_dfii_pi0_baddress_write
|
||||
mov bx,#0x0000
|
||||
mov ax,#0x000F
|
||||
call command_p0
|
||||
|
||||
MOV DL,#0xF0
|
||||
DELAY31:
|
||||
MOV AX,#0xF000
|
||||
DELAY3:
|
||||
INC AX
|
||||
JNZ DELAY3
|
||||
INC DL
|
||||
JNZ DELAY31
|
||||
|
||||
MOV BX,#0x0000
|
||||
MOV AX,#0x0400
|
||||
call sdram_dfii_pi0_address_write
|
||||
mov bx,#0x0000
|
||||
mov ax,#0x0000
|
||||
call sdram_dfii_pi0_baddress_write
|
||||
mov bx,#0x0000
|
||||
mov ax,#0x0003
|
||||
call command_p0
|
||||
|
||||
|
||||
|
||||
|
||||
;////sdram_software_control_off///
|
||||
MOV BX,#0x0000
|
||||
MOV AX,#0x0001
|
||||
call sdram_dfii_control_write
|
||||
;////////////////////////////////
|
||||
|
||||
;Signify end of init
|
||||
MOV BX,#0x0000
|
||||
MOV AX,#0x0001
|
||||
CALL ddrctrl_init_done_write
|
||||
|
||||
;;;;;;;;;; PROBABLY NOT NECESSARY
|
||||
MOV DL,#0xF0
|
||||
DELAY41:
|
||||
MOV AX,#0xF000
|
||||
DELAY4:
|
||||
INC AX
|
||||
JNZ DELAY4
|
||||
INC DL
|
||||
JNZ DELAY41
|
||||
|
||||
|
||||
;;; CHECK ;;;
|
||||
inw #0x20
|
||||
test al,#0x01
|
||||
jz failram
|
||||
mov bx,#OK_txt
|
||||
call print
|
||||
JMP FINISHED_DDR
|
||||
failram:
|
||||
mov bx,#FAIL_txt
|
||||
call print
|
||||
mov bx,#NOT_RDY_txt
|
||||
call print
|
||||
|
||||
inw #0x20
|
||||
test al,#0x02
|
||||
jz skip_err
|
||||
mov bx,#ERR_ASRT_txt
|
||||
call print
|
||||
skip_err:
|
||||
|
||||
inw #0x20
|
||||
test al,#0x04
|
||||
jnz skip_pll
|
||||
mov bx,#PLL_ERR_txt
|
||||
call print
|
||||
skip_pll:
|
||||
hlt
|
||||
|
||||
FINISHED_DDR:
|
||||
|
||||
MOV DI,#0x2000
|
||||
MOV AX,#0xAAAA
|
||||
MOV [DI],AX
|
||||
MOV [DI],AX
|
||||
MOV [DI],AX
|
||||
MOV [DI],AX
|
||||
MOV [DI],AX
|
||||
MOV [DI],AX
|
||||
MOV [DI],AX
|
||||
MOV [DI],AX
|
||||
MOV [DI],AX
|
||||
MOV [DI],AX
|
||||
MOV [DI],AX
|
||||
MOV AX,#0x6666
|
||||
MOV AX,[DI]
|
||||
CMP AX,#0xAAAA
|
||||
JNZ FAILED
|
||||
MOV BX,#MEMTEST_PASS
|
||||
CALL print
|
||||
|
||||
MOV AL,#0x48
|
||||
MOV [DI],AX
|
||||
MOV AL,#0x00
|
||||
MOV AX,[DI]
|
||||
out byte #0xA5
|
||||
|
||||
MOV DI,#0x3000
|
||||
MOV AL,#0x65
|
||||
MOV [DI],AX
|
||||
MOV AL,#0x00
|
||||
MOV AX,[DI]
|
||||
out byte #0xA5
|
||||
|
||||
MOV DI,#0x4000
|
||||
MOV AL,#0x6c
|
||||
MOV [DI],AX
|
||||
MOV AL,#0x00
|
||||
MOV AX,[DI]
|
||||
out byte #0xA5
|
||||
|
||||
MOV DI,#0x5000
|
||||
MOV AL,#0x6c
|
||||
MOV [DI],AX
|
||||
MOV AL,#0x00
|
||||
MOV AX,[DI]
|
||||
out byte #0xA5
|
||||
|
||||
MOV DI,#0x6000
|
||||
MOV AL,#0x6f
|
||||
MOV [DI],AX
|
||||
MOV AL,#0x00
|
||||
MOV AX,[DI]
|
||||
out byte #0xA5
|
||||
|
||||
HLT
|
||||
FAILED:
|
||||
MOV BX,#MEMTEST_FAIL
|
||||
CALL print
|
||||
|
||||
MOV DL,#0xF0
|
||||
DELAY51:
|
||||
MOV AX,#0x5000
|
||||
DELAY5:
|
||||
INC AX
|
||||
JNZ DELAY5
|
||||
INC DL
|
||||
JNZ DELAY51
|
||||
|
||||
MOV DI,#0x2000
|
||||
MOV AX,#0xAAAA
|
||||
MOV [DI],AX
|
||||
MOV [DI],AX
|
||||
MOV [DI],AX
|
||||
MOV [DI],AX
|
||||
MOV [DI],AX
|
||||
MOV [DI],AX
|
||||
MOV [DI],AX
|
||||
MOV [DI],AX
|
||||
MOV [DI],AX
|
||||
MOV [DI],AX
|
||||
MOV [DI],AX
|
||||
MOV AX,#0x0000
|
||||
MOV AX,[DI]
|
||||
CMP AL,#0xAA
|
||||
JNZ FAILED2
|
||||
MOV BX,#MEMTEST_PASS
|
||||
CALL print
|
||||
HLT
|
||||
FAILED2:
|
||||
MOV BX,#MEMTEST_FAIL
|
||||
CALL print
|
||||
MOV AX,[DI]
|
||||
CMP AL,#0xAA
|
||||
JNZ FAILED3
|
||||
MOV BX,#MEMTEST_PASS
|
||||
CALL print
|
||||
HLT
|
||||
FAILED3:
|
||||
MOV BX,#MEMTEST_FAIL
|
||||
CALL print
|
||||
HLT
|
||||
|
||||
|
||||
;;; HELPER FUNCTION
|
||||
command_p0:
|
||||
call WISHBONE_SET_DATA
|
||||
MOV AX,#0x0401 ;ORIG=0x1804L
|
||||
CALL WISHBONE_SET_ADDRESS
|
||||
CALL DO_WRITE_TRANSACTION
|
||||
MOV AX,#0x0001
|
||||
MOV BX,#0x0000
|
||||
call WISHBONE_SET_DATA
|
||||
MOV AX,#0x0402 ;ORIG=0x1808L
|
||||
CALL WISHBONE_SET_ADDRESS
|
||||
CALL DO_WRITE_TRANSACTION
|
||||
ret
|
||||
|
||||
#AX: Lower 16 bits data
|
||||
#BX: Upper 16 bits data
|
||||
sdram_dfii_pi0_address_write:
|
||||
call WISHBONE_SET_DATA
|
||||
MOV AX,#0x0403 ;ORIG=0x180cL
|
||||
CALL WISHBONE_SET_ADDRESS
|
||||
CALL DO_WRITE_TRANSACTION
|
||||
ret
|
||||
|
||||
sdram_dfii_pi0_baddress_write:
|
||||
call WISHBONE_SET_DATA
|
||||
MOV AX,#0x0404 ;ORIG=0x1810L
|
||||
CALL WISHBONE_SET_ADDRESS
|
||||
CALL DO_WRITE_TRANSACTION
|
||||
ret
|
||||
|
||||
sdram_dfii_control_write:
|
||||
call WISHBONE_SET_DATA
|
||||
MOV AX,#0x0400 ;ORIG=0x1800L
|
||||
CALL WISHBONE_SET_ADDRESS
|
||||
CALL DO_WRITE_TRANSACTION
|
||||
ret
|
||||
|
||||
ddrctrl_init_done_write:
|
||||
call WISHBONE_SET_DATA
|
||||
MOV AX,#0x0000 ;ORIG=0x0L
|
||||
CALL WISHBONE_SET_ADDRESS
|
||||
CALL DO_WRITE_TRANSACTION
|
||||
ret
|
||||
|
||||
ddrctrl_init_error_write:
|
||||
call WISHBONE_SET_DATA
|
||||
MOV AX,#0x0001 ;ORIG=0x4L
|
||||
CALL WISHBONE_SET_ADDRESS
|
||||
CALL DO_WRITE_TRANSACTION
|
||||
ret
|
||||
;
|
||||
DO_WRITE_TRANSACTION:
|
||||
mov ax,#0x01
|
||||
outw #0x46
|
||||
mov bl,#0x01
|
||||
WB_WRITE_LOOP:
|
||||
inc bl
|
||||
jz WB_WRITE_TIMEOUT
|
||||
inw #0x44
|
||||
test al,#0x01
|
||||
jz WB_WRITE_LOOP
|
||||
test al,#0x04
|
||||
jnz WB_WRITE_ERR
|
||||
ret
|
||||
WB_WRITE_TIMEOUT:
|
||||
mov bx,#WISHBONE_TIMEOUT_txt
|
||||
call print
|
||||
hlt
|
||||
WB_WRITE_ERR:
|
||||
mov bx,#WISHBONE_ERROR_txt
|
||||
call print
|
||||
hlt
|
||||
|
||||
#AX: address
|
||||
WISHBONE_SET_ADDRESS:
|
||||
outw #0x44
|
||||
ret
|
||||
|
||||
#AX: Lower 16bits
|
||||
#BX: Upper 16bits
|
||||
WISHBONE_SET_DATA:
|
||||
outw #0x40
|
||||
MOV AX,BX
|
||||
outw #0x42
|
||||
ret
|
||||
INCLUDE dos_layer.asm
|
||||
include LiteDram_init.asm
|
||||
|
||||
print:
|
||||
mov al,[bx]
|
||||
@ -373,16 +19,6 @@ jmp print
|
||||
print_exit:
|
||||
ret
|
||||
|
||||
initdram_txt: .ASCII 'Init LiteDram: \0'
|
||||
OK_txt: .ASCII 'OK\n\0'
|
||||
PLL_ERR_txt: .ASCII 'PLL_ERR \0' ; PLL_ERR: pll_lock is not asserted
|
||||
ERR_ASRT_txt: .ASCII 'ERR_ASRT \0' ; ERR_ASRT: init_error is asserted
|
||||
NOT_RDY_txt: .ASCII 'NOT_RDY \0' ; NOT READY: init_done is not asserted
|
||||
FAIL_txt: .ASCII 'FAIL\n\0'
|
||||
WISHBONE_TIMEOUT_txt: .ASCII 'FAIL\nWISHBONE TIMEOUT\0'
|
||||
WISHBONE_ERROR_txt: .ASCII 'FAIL\nWISHBONE ERROR\0'
|
||||
MEMTEST_PASS: .ASCII 'MEMTEST PASSED\n\0'
|
||||
MEMTEST_FAIL: .ASCII 'MEMTEST FAILED\n\0'
|
||||
.BLKB 18 ; Using the text as stack space for the compiled program
|
||||
STACK: ; brainfuck_mandelbrot depends on stack being at the end
|
||||
|
||||
|
||||
@ -19,7 +19,7 @@
|
||||
|
||||
; 0x0000-0x0100 int vector 0x0100-0x0700 data 0x0700-0xC000 program data
|
||||
|
||||
mov sp,#STACK
|
||||
mov sp,#STACK_COMPILER
|
||||
mov bx,#bootup_msg
|
||||
mov ah,#0x02
|
||||
print1:
|
||||
@ -29,6 +29,14 @@ inc bx
|
||||
cmp dl,#0x0A
|
||||
jne print1
|
||||
|
||||
MOV DI,#0x0200
|
||||
MOV AX,#0x0000
|
||||
MOV bl,#0x00
|
||||
CLEAR:
|
||||
STOSW
|
||||
INC BL
|
||||
JNZ CLEAR
|
||||
|
||||
mov bx,#compiling
|
||||
mov ah,#0x02
|
||||
print2:
|
||||
@ -267,5 +275,5 @@ RET
|
||||
compiled: .ASCII '\rCompiled! \n'
|
||||
compiling: .ASCII 'Compiling...\0'
|
||||
bootup_msg: .ASCII 'Native 8086 brainfuck compiler v1\n'
|
||||
.BLKB 6 ; Using the text as stack space for the compiled program
|
||||
STACK: ; brainfuck_mandelbrot depends on stack being at the end
|
||||
.BLKB 10 ; Using the text as stack space for the compiled program
|
||||
STACK_COMPILER: ; brainfuck_mandelbrot depends on stack being at the end
|
||||
|
||||
Loading…
Reference in New Issue
Block a user