Espresso 0.0.2a

arch/x86/cpuid.s

@@ -0,0 +1,57 @@
+
+
+/*
+    Just a bunch of CPUID stuff.
+*/
+
+.extern sse_initialized
+
+.section .text
+
+
+_init_cpuid:
+    pusha
+
+    pushf
+    pop %eax
+    mov %eax, %ecx
+    xor $0x200000, %eax
+    push %eax
+    popf
+    /*pushf*/
+    pop %eax
+    xor %ecx, %eax
+    jz .no_cpuid
+    
+    lea _has_cpuid, %edi
+    movl $1, (%edi)
+    
+    jmp .done
+    
+.no_cpuid:
+    lea _has_cpuid, %edi
+    movl $0, (%edi)
+    
+    jmp .done
+    
+.done:
+    popa
+    
+    ret
+    
+_sse_level:
+    lea _has_sse, %edi
+    lea sse_initialized, %esi
+    
+    movl (%esi), %eax
+    
+    movl %eax, (%edi)
+
+
+.section .data
+
+.global _has_cpuid
+
+_has_cpuid: .int 0
+_has_sse:   .int 0
+_has_mmx:   .int 0