amd64/bareMetalOS-0.5.3/programs/sysinfo.asm

   1 ; System Information Program (v1.0, July 6 2010)
   2 ; Written by Ian Seyler
   3 ;
   4 ; BareMetal compile:
   5 ; nasm sysinfo.asm -o sysinfo.app
   6
   7
   8 [BITS 64]
   9 [ORG 0x0000000000200000]
  10
  11 %INCLUDE "bmdev.asm"
  12
  13 start:                          ; Start of program label
  14
  15         mov rsi, startmessage   ; Load RSI with memory address of string
  16         call b_print_string     ; Print the string that RSI points to
  17
  18 ;Get processor brand string
  19         xor rax, rax
  20         mov rdi, tstring
  21         mov eax, 0x80000002
  22         cpuid
  23         stosd
  24         mov eax, ebx
  25         stosd
  26         mov eax, ecx
  27         stosd
  28         mov eax, edx
  29         stosd
  30         mov eax, 0x80000003
  31         cpuid
  32         stosd
  33         mov eax, ebx
  34         stosd
  35         mov eax, ecx
  36         stosd
  37         mov eax, edx
  38         stosd
  39         mov eax, 0x80000004
  40         cpuid
  41         stosd
  42         mov eax, ebx
  43         stosd
  44         mov eax, ecx
  45         stosd
  46         mov eax, edx
  47         stosd
  48         xor al, al
  49         stosb                   ; Terminate the string
  50         mov rsi, tstring
  51         call b_string_parse
  52         mov rsi, cpustringmsg
  53         call b_print_string
  54         mov rsi, tstring
  55         call b_print_string
  56
  57 ; Number of cores
  58         call b_print_newline
  59         mov rsi, numcoresmsg
  60         call b_print_string
  61         xor rax, rax
  62         mov rsi, 0x5012
  63         lodsw
  64         mov rdi, tstring
  65         call b_int_to_string
  66         mov rsi, tstring
  67         call b_print_string
  68
  69 ; Speed
  70         call b_print_newline
  71         mov rsi, speedmsg
  72         call b_print_string
  73         xor rax, rax
  74         mov rsi, 0x5010
  75         lodsw
  76         mov rdi, tstring
  77         call b_int_to_string
  78         mov rsi, tstring
  79         call b_print_string
  80         mov rsi, mhzmsg
  81         call b_print_string
  82
  83 ; L1 code/data cache info
  84         call b_print_newline
  85         mov eax, 0x80000005     ; L1 cache info
  86         cpuid
  87         mov eax, edx            ; EDX bits 31 - 24 store code L1 cache size in KBs
  88         shr eax, 24
  89         mov rdi, tstring
  90         call b_int_to_string
  91         mov rsi, l1ccachemsg
  92         call b_print_string
  93         mov rsi, tstring
  94         call b_print_string
  95         mov rsi, kbmsg
  96         call b_print_string
  97         call b_print_newline
  98         mov eax, ecx            ; ECX bits 31 - 24 store data L1 cache size in KBs
  99         shr eax, 24
 100         mov rdi, tstring
 101         call b_int_to_string
 102         mov rsi, l1dcachemsg
 103         call b_print_string
 104         mov rsi, tstring
 105         call b_print_string
 106         mov rsi, kbmsg
 107         call b_print_string
 108
 109 ; L2/L3 cache info
 110         call b_print_newline
 111         mov eax, 0x80000006     ; L2/L3 cache info
 112         cpuid
 113         mov eax, ecx            ; ecx bits 31 - 16 store unified L2 cache size in KBs
 114         shr eax, 16
 115         mov rdi, tstring
 116         call b_int_to_string
 117         mov rsi, l2ucachemsg
 118         call b_print_string
 119         mov rsi, tstring
 120         call b_print_string
 121         mov rsi, kbmsg
 122         call b_print_string
 123
 124         call b_print_newline
 125         mov eax, edx            ; edx bits 31 - 18 store unified L3 cache size in 512 KB chunks
 126         shr eax, 18
 127         and eax, 0x3FFFF        ; Clear bits 18 - 31
 128         shl eax, 9              ; Convert the value for 512 KB chunks to KBs (Multiply by 512)
 129         mov rdi, tstring
 130         call b_int_to_string
 131         mov rsi, l3ucachemsg
 132         call b_print_string
 133         mov rsi, tstring
 134         call b_print_string
 135         mov rsi, kbmsg
 136         call b_print_string
 137
 138 ;CPU features
 139         call b_print_newline
 140         mov rsi, cpufeatures
 141         call b_print_string
 142         mov rax, 1
 143         cpuid
 144
 145 checksse:
 146         test edx, 00000010000000000000000000000000b
 147         jz checksse2
 148         mov rsi, sse
 149         call b_print_string
 150
 151 checksse2:
 152         test edx, 00000100000000000000000000000000b
 153         jz checksse3
 154         mov rsi, sse2
 155         call b_print_string
 156
 157 checksse3:
 158         test ecx, 00000000000000000000000000000001b
 159         jz checkssse3
 160         mov rsi, sse3
 161         call b_print_string
 162
 163 checkssse3:
 164         test ecx, 00000000000000000000001000000000b
 165         jz checksse41
 166         mov rsi, ssse3
 167         call b_print_string
 168
 169 checksse41:
 170         test ecx, 00000000000010000000000000000000b
 171         jz checksse42
 172         mov rsi, sse41
 173         call b_print_string
 174
 175 checksse42:
 176         test ecx, 00000000000100000000000000000000b
 177         jz checkaes
 178         mov rsi, sse42
 179         call b_print_string
 180
 181 checkaes:
 182         test ecx, 00000010000000000000000000000000b
 183         jz checkavx
 184         mov rsi, aes
 185         call b_print_string
 186
 187 checkavx:
 188         test ecx, 00010000000000000000000000000000b
 189         jz endit
 190         mov rsi, avx
 191         call b_print_string
 192
 193 endit:
 194 ;RAM
 195         call b_print_newline
 196         mov rsi, memmessage
 197         call b_print_string
 198         xor rax, rax
 199         mov rsi, 0x5020
 200         lodsw
 201         mov rdi, tstring
 202         call b_int_to_string
 203         mov rsi, tstring
 204         call b_print_string
 205         mov rsi, mbmsg
 206         call b_print_string
 207
 208
 209         call b_print_newline
 210
 211 ret                             ; Return to OS
 212
 213 startmessage: db 'System Information:', 13, 0
 214 cpustringmsg: db 'CPU String: ', 0
 215 numcoresmsg: db 'Number of cores: ', 0
 216 speedmsg: db 'Detected speed: ', 0
 217 l1ccachemsg: db 'L1 code cache: ', 0
 218 l1dcachemsg: db 'L1 data cache: ', 0
 219 l2ucachemsg: db 'L2 unified cache: ', 0
 220 l3ucachemsg: db 'L3 unified cache: ', 0
 221 cpufeatures: db 'CPU features: ', 0
 222 kbmsg: db ' KiB', 0
 223 mbmsg: db ' MiB', 0
 224 mhzmsg: db ' MHz', 0
 225 sse: db 'SSE ', 0
 226 sse2: db 'SSE2 ', 0
 227 sse3: db 'SSE3 ', 0
 228 ssse3: db 'SSSE3 ', 0
 229 sse41: db 'SSE4.1 ', 0
 230 sse42: db 'SSE4.2 ', 0
 231 aes: db 'AES ', 0
 232 avx: db 'AVX ', 0
 233 memmessage: db 'RAM: ', 0
 234
 235 tstring: times 50 db 0