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Merge branch 'bios' into 'master'

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#4 Load entire kernel into memory

See merge request bslathi19/super6502!19
This commit is contained in:
Byron Lathi
2023-08-26 15:14:25 +00:00
parent 155b2c2972 d2700a64fb
commit 3487f35af8
4 changed files with 343 additions and 187 deletions
Download Patch File Download Diff File Expand all files Collapse all files

358
hw/efinix_fpga/init_hex.mem
View File

@@ -1,247 +1,247 @@
@00000000
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16 A6 0F 90 01 E8 86 17 A0 01 B1 16 AA 88 B1 16
20 4D FD A5 16 A6 17 20 14 FE AC 5D 92 4C 85 FA
85 16 86 17 20 75 F0 4C 1E FB 85 16 86 17 A0 00
B1 16 F0 0E C8 84 1E 20 68 F0 A4 1E D0 F2 E6 17
D0 EE 60 E0 00 D0 15 4A AA BD E3 FE 90 05 4A 4A
4A 4A 18 29 0F AA BD D8 FE A2 00 60 38 A9 00 AA
60 A4 0E D0 02 C6 0F C6 0E 60 A5 0E 38 E9 02 85
0E 90 01 60 C6 0F 60 A5 0E 38 E9 04 85 0E 90 01
60 C6 0F 60 A5 0E 38 E9 06 85 0E 90 01 60 C6 0F
60 A5 0E 38 E9 07 85 0E 90 01 60 C6 0F 60 A0 01
B1 0E AA 88 B1 0E E6 0E F0 05 E6 0E F0 03 60 E6
0E E6 0F 60 A0 03 4C 85 FA A0 05 4C 85 FA A0 08
4C 85 FA 85 16 86 17 A2 00 B1 16 60 A0 01 B1 0E
AA 88 B1 0E 60 A0 03 B1 0E 85 11 88 B1 0E 85 10
88 B1 0E AA 88 B1 0E 60 A2 00 18 65 0E 48 8A 65
0F AA 68 60 18 49 FF 69 01 48 8A 49 FF 69 00 AA
A5 10 49 FF 69 00 85 10 A5 11 49 FF 69 00 85 11
68 60 A9 00 AA A0 00 84 10 84 11 48 20 67 FB A0
03 A5 11 91 0E 88 A5 10 91 0E 88 8A 91 0E 68 88
91 0E 60 85 1E 20 8E FB 85 18 86 19 85 1A 86 1B
20 20 FD 20 8E FB 85 10 86 11 60 20 23 FC A6 11
A4 1E C0 0A D0 39 A5 10 05 17 05 16 D0 11 E0 80
D0 0D A0 0B B9 CC FE 91 18 88 10 F8 4C B3 FC 8A
10 1D A9 2D A0 00 91 18 E6 18 D0 02 E6 19 A5 16
A6 17 20 E4 FB 85 16 86 17 4C 7F FC 20 23 FC A9
00 48 A0 20 A9 00 06 16 26 17 26 10 26 11 2A C5
1E 90 04 E5 1E E6 16 88 D0 EC A8 B9 BC FE 48 A5
16 05 17 05 10 05 11 D0 D9 A0 00 68 91 18 F0 03
C8 D0 F8 A5 1A A6 1B 60 D0 06 A2 00 8A 60 D0 FA
A2 00 A9 01 60 F0 F9 30 F7 A2 00 8A 60 F0 02 10
EF A2 00 8A 60 F0 E9 90 E7 A2 00 8A 60 F0 DB A2
00 8A 2A 60 A0 01 B1 02 85 0B 88 B1 02 85 0A 4C
96 FB A9 01 4C 0F FD A0 00 B1 02 A4 02 F0 07 C6
02 A0 00 91 02 60 C6 03 C6 02 91 02 60 A9 00 A2
00 48 A5 02 38 E9 02 85 02 B0 02 C6 03 A0 01 8A
91 02 68 88 91 02 60 A0 00 91 02 C8 48 8A 91 02
68 60 85 0C 86 0D 20 E4 FC B1 0A D1 0C D0 0C AA
F0 10 C8 D0 F4 E6 0B E6 0D D0 EE B0 03 A2 FF 60
A2 01 60 85 0C 86 0D A2 00 A0 00 B1 0C F0 08 C8
D0 F9 E6 0D E8 D0 F4 98 60 85 0A 86 0B 85 0C 86
0D A0 00 B1 0A F0 14 20 37 FB 29 02 F0 06 B1 0A
69 20 91 0A C8 D0 EC E6 0B D0 E8 A5 0C A6 0D 60
20 8E FB 85 0C 86 0D E8 8E 31 92 AA E8 8E 30 92
20 E4 FC 20 8E FB 85 0E 86 0F A0 00 84 12 B1 0E
18 65 0C 91 0E C8 B1 0E 65 0D 91 0E CE 30 92 F0
11 A4 12 B1 0A C8 D0 02 E6 0B 84 12 20 68 F0 4C
BC FD CE 31 92 D0 EA 60 85 0A 86 0B A9 00 8D 2A
92 8D 2B 92 A0 01 B1 02 AA 88 B1 02 20 11 FD A0
02 A9 2A 91 02 C8 A9 92 91 02 A5 0A A6 0B 20 C2
F7 AD 2A 92 AE 2B 92 60 A9 32 85 0A A9 92 85 0B
A9 00 A8 A2 00 F0 0A 91 0A C8 D0 FB E6 0B CA D0
F6 C0 2C F0 05 91 0A C8 D0 F7 60 62 61 64 20 74
6F 6B 65 6E 3A 20 25 78 0D 0A 00 53 75 63 63 65
73 73 0D 0A 00 45 72 72 6F 72 0D 0A 00 53 74 61
72 74 0D 0A 00 6F 70 5F 63 6F 6E 64 20 65 72 72
6F 72 0D 0A 00 49 46 20 43 6F 6E 64 0D 0A 00 47
6F 20 49 44 4C 45 0D 0A 00 25 32 78 00 0D 0A 00
30 31 32 33 34 35 36 37 38 39 41 42 43 44 45 46
2D 32 31 34 37 34 38 33 36 34 38 00 00 01 02 0C
09 0A 10 40 50 A0 D0 66 66 66 66 A6 88 88 66 66
66 66 66 66 66 66 66 09 00 00 00 00 00 00 00 33
33 33 33 33 00 00 00 50 55 55 25 22 22 22 22 22
22 22 22 22 02 00 00 40 44 44 14 11 11 11 11 11
11 11 11 11 01 00 70 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 8A 2A 60 20 0D FD A6 1B F0 13 B1 16 91 18 C8
B1 16 91 18 C8 D0 F4 E6 17 E6 19 CA D0 ED A6 1A
F0 08 B1 16 91 18 C8 CA D0 F8 4C 8E FB 85 1A 86
1B 20 20 FD C8 B1 0E AA 86 19 88 B1 0E 85 18 60
A0 01 B1 0E 85 17 88 B1 0E 85 16 4C 96 FB A9 01
4C 4B FD A0 00 B1 0E A4 0E F0 07 C6 0E A0 00 91
0E 60 C6 0F C6 0E 91 0E 60 A9 00 A2 00 48 A5 0E
38 E9 02 85 0E B0 02 C6 0F A0 01 8A 91 0E 68 88
91 0E 60 A0 00 91 0E C8 48 8A 91 0E 68 60 85 18
86 19 20 20 FD B1 16 D1 18 D0 0C AA F0 10 C8 D0
F4 E6 17 E6 19 D0 EE B0 03 A2 FF 60 A2 01 60 85
18 86 19 A2 00 A0 00 B1 18 F0 08 C8 D0 F9 E6 19
E8 D0 F4 98 60 85 16 86 17 85 18 86 19 A0 00 B1
16 F0 14 20 37 FB 29 02 F0 06 B1 16 69 20 91 16
C8 D0 EC E6 17 D0 E8 A5 18 A6 19 60 20 8E FB 85
18 86 19 E8 8E 31 92 AA E8 8E 30 92 20 20 FD 20
8E FB 85 1A 86 1B A0 00 84 1E B1 1A 18 65 18 91
1A C8 B1 1A 65 19 91 1A CE 30 92 F0 11 A4 1E B1
16 C8 D0 02 E6 17 84 1E 20 68 F0 4C F8 FD CE 31
92 D0 EA 60 85 16 86 17 A9 00 8D 2A 92 8D 2B 92
A0 01 B1 0E AA 88 B1 0E 20 4D FD A0 02 A9 2A 91
0E C8 A9 92 91 0E A5 16 A6 17 20 C2 F7 AD 2A 92
AE 2B 92 60 A9 32 85 16 A9 92 85 17 A9 00 A8 A2
00 F0 0A 91 16 C8 D0 FB E6 17 CA D0 F6 C0 2C F0
05 91 16 C8 D0 F7 60 62 61 64 20 74 6F 6B 65 6E
3A 20 25 78 0D 0A 00 53 75 63 63 65 73 73 0D 0A
00 45 72 72 6F 72 0D 0A 00 53 74 61 72 74 0D 0A
00 6F 70 5F 63 6F 6E 64 20 65 72 72 6F 72 0D 0A
00 49 46 20 43 6F 6E 64 0D 0A 00 47 6F 20 49 44
4C 45 0D 0A 00 25 32 78 00 0D 0A 00 30 31 32 33
34 35 36 37 38 39 41 42 43 44 45 46 2D 32 31 34
37 34 38 33 36 34 38 00 00 01 02 0C 09 0A 10 40
50 A0 D0 66 66 66 66 A6 88 88 66 66 66 66 66 66
66 66 66 09 00 00 00 00 00 00 00 33 33 33 33 33
00 00 00 50 55 55 25 22 22 22 22 22 22 22 22 22
02 00 00 40 44 44 14 11 11 11 11 11 11 11 11 11
01 00 70 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

2
hw/efinix_fpga/super6502.xml
View File

@@ -1,5 +1,5 @@
<?xml version="1.0" encoding="UTF-8"?>
<efx:project name="super6502" description="" last_change_date="Mon August 21 2023 19:23:14" location="/home/byron/Projects/super6502/hw/efinix_fpga" sw_version="2023.1.150" last_run_state="pass" last_run_tool="efx_pgm" last_run_flow="bitstream" config_result_in_sync="true" design_ood="sync" place_ood="sync" route_ood="sync" xmlns:efx="http://www.efinixinc.com/enf_proj" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.efinixinc.com/enf_proj enf_proj.xsd">
<efx:project name="super6502" description="" last_change_date="Sat August 26 2023 07:37:48" location="/home/byron/Projects/super6502/hw/efinix_fpga" sw_version="2023.1.150" last_run_state="pass" last_run_tool="efx_pgm" last_run_flow="bitstream" config_result_in_sync="true" design_ood="sync" place_ood="sync" route_ood="sync" xmlns:efx="http://www.efinixinc.com/enf_proj" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.efinixinc.com/enf_proj enf_proj.xsd">
<efx:device_info>
<efx:family name="Trion"/>
<efx:device name="T20F256"/>

167
sw/bios/boot2.s
View File

@@ -11,6 +11,17 @@
fatbuf = $A000
filebuf = $B000
.zeropage
tbase: .res 2
tlen: .res 2
dbase: .res 2
dlen: .res 2
olen: .res 1
otype: .res 1
userptr: .res 2
.segment "BOOTLOADER"
sectors_per_cluster = $800D
@@ -18,6 +29,21 @@ reserved_sectors = $800E
fat_count = $8010
sectors_per_fat = $8024
O65_NO_C65 = $00
O65_MAGIC = $02
O65_VERSION = $05
O65_MODE = $06
O65_TBASE = $08
O65_TLEN = $0a
O65_DBASE = $0c
O65_DLEN = $0e
O65_BBASE = $10
O65_BLEN = $12
O65_ZBASE = $14
O65_ZLEN = $16
O65_STACK = $18
O65_OPT_START = $1A
_start:
lda #<str
ldx #>str
@@ -109,6 +135,7 @@ _start:
ldy #$1d ; load file size (256)
lda (ptr3),y
lsr ; divide by 2 to get file size (512)
sta filesiz
jsr pusha0
ldy #$4
jsr _cprintf
@@ -134,28 +161,154 @@ _start:
adc data_start ; add that to low data start
bcc @5 ; handle carry
inx
@5: stz sreg
stz sreg+1
phx
pha
@5: sta cluster
stx cluster + 1
jsr pusheax
lda #<filebuf
ldx #>filebuf
sta userptr
stx userptr + 1
@read_sd:
lda cluster
ldx cluster + 1
stz sreg
stz sreg+1
jsr pusheax
lda userptr
ldx userptr + 1
jsr pushax
lda #<ptr1
ldx #>ptr1
jsr _SD_readSingleBlock
lda #<filebuf
lda userptr
ldx userptr + 1
jsr _SD_printBuf
dec filesiz
bmi @doneload
inc cluster
inc userptr + 1
inc userptr + 1
bra @read_sd
@doneload:
ldy #O65_TBASE
lda filebuf,y
sta tbase
iny
ldx filebuf,y
stx tbase + 1
ldy #O65_TLEN
lda filebuf,y
sta tlen
iny
ldx filebuf,y
stx tlen + 1
ldy #O65_DBASE
lda filebuf,y
sta dbase
iny
ldx filebuf,y
stx dbase + 1
ldy #O65_DLEN
lda filebuf,y
sta dlen
iny
ldx filebuf,y
stx dlen + 1
ldy #O65_OPT_START
phy
@opt_len:
lda #<opt_str
ldx #>opt_str
jsr pushax
ply
lda filebuf,y
beq @opt_end
sta olen
phy
jsr pusha0
ply
iny
lda filebuf,y
sta otype
phy
jsr pusha0
ldy #$6
jsr _cprintf
lda #<word_str
ldx #>word_str
jsr pushax
pla
adc olen
dec
dec
pha
bra @opt_len
@opt_end:
iny ; account for reading size
phy
lda #<opt_done
ldx #>opt_done
jsr pushax
pla
pha
jsr pusha0
ldy #$4
jsr _cprintf
pla
ldx #>filebuf
adc #<filebuf
bcc @6
inx
@6: sta userptr
stx userptr + 1
lda #<word_str
ldx #>word_str
jsr pushax
lda userptr
ldx userptr + 1
jsr pushax
ldy #$4
jsr _cprintf
;void* __fastcall__ memcpy (void* dest, const void* src, size_t count);
lda tbase
ldx tbase + 1
jsr pushax
lda userptr
ldx userptr + 1
jsr pushax
lda tlen
ldx tlen + 1
jsr _memcpy
lda #<$1000
ldx #>$1000
jsr _SD_printBuf
@end: bra @end
filesiz: .res 1
cluster: .res 2
str: .asciiz "boot2\r\n"
kernel_str: .asciiz "KERNEL O65"
_good: .asciiz "Found KERNEL\r\n"
word_str: .asciiz "Word Value: %x\r\n"
word_str: .asciiz "Word Value: %x\r\n"
opt_str: .asciiz "Opt Len: %x, Opt Type: %x\r\n"
opt_done: .asciiz "Options done. total option length: %x\r\n"

3
sw/script/o65dump.py
View File

@@ -37,6 +37,9 @@ class O65():
self.options.append((olen, otype, obytes))
olen = int.from_bytes(_file.read(1))
text_offs = _file.tell()
print(f"Text offset: {text_offs}")
self.text = _file.read(self.header["tlen"])
self.data = _file.read(self.header["dlen"])