2015-04-21 00:19:06 +00:00
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global hal_write_port
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global hal_read_port
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2015-04-22 08:06:15 +00:00
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global hal_enable_interrupt
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global hal_disable_interrupt
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2015-04-23 07:47:20 +00:00
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global hal_interrupt_handler_wrapper
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2015-04-22 08:06:15 +00:00
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extern hal_interrupt_handler_dummy
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2015-04-23 07:47:20 +00:00
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%macro pushaq 0
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push rax ;save current rax
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push rbx ;save current rbx
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push rcx ;save current rcx
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push rdx ;save current rdx
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push rbp ;save current rbp
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push rdi ;save current rdi
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push rsi ;save current rsi
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push r8 ;save current r8
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push r9 ;save current r9
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push r10 ;save current r10
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push r11 ;save current r11
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push r12 ;save current r12
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push r13 ;save current r13
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push r14 ;save current r14
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push r15 ;save current r15
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%endmacro
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%macro popaq 0
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pop r15 ;restore current r15
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pop r14 ;restore current r14
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pop r13 ;restore current r13
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pop r12 ;restore current r12
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pop r11 ;restore current r11
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pop r10 ;restore current r10
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pop r9 ;restore current r9
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pop r8 ;restore current r8
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pop rsi ;restore current rsi
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pop rdi ;restore current rdi
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pop rbp ;restore current rbp
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pop rdx ;restore current rdx
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pop rcx ;restore current rcx
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pop rbx ;restore current rbx
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pop rax ;restore current rax
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%endmacro
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2015-02-08 00:26:20 +00:00
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[SECTION .text]
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[BITS 64]
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2015-04-21 00:19:06 +00:00
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hal_write_port:
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2015-02-08 00:26:20 +00:00
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mov rdx,rdi
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mov rax,rsi
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out dx,eax
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nop
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nop
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ret
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2015-04-21 00:19:06 +00:00
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hal_read_port:
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2015-02-08 00:26:20 +00:00
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mov rdx,rdi
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xor rax,rax
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in eax,dx
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nop
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nop
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2015-04-22 08:06:15 +00:00
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ret
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hal_disable_interrupt:
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cli
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ret
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hal_enable_interrupt:
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sti
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ret
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hal_interrupt_handler_wrapper:
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pushaq
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cld
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call hal_interrupt_handler_dummy
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popaq
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2015-07-17 04:41:53 +00:00
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xchg bx,bx
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2015-04-22 08:06:15 +00:00
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iretq
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