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7b4806d69f
Specifying no argument is undocumented in the gas manual, and clang's integrated assembler refuses to parse it. Also, removing it causes no change at all in the resulting object file. MFC after: 1 week
41 lines
843 B
ArmAsm
41 lines
843 B
ArmAsm
#include <machine/asm.h>
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__FBSDID("$FreeBSD$");
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/*
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* This is cribbed from the Linux thinkpad-4.1 driver by
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* Thomas Hood.
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*/
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smapi32_entry: /* far pointer to SMAPI entry */
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.globl smapi32_offset
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smapi32_offset: .long 0x00000000 /* set by caller */
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smapi32_segment: .word 0x0000 /* %cs stored here */
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.text
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/*
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* smapi32(input_param, output_param)
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* struct smapi_bios_parameter *input_parm;
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* struct smapi_bios_parameter *output_parm;
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*
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* stack frame:
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* 0x00 : saved ebp
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* 0x04 : return EIP
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* 0x08 : input_parm
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* 0x0c : output_parm
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*/
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ENTRY(smapi32)
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pushl %ebp /* Save frame */
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movl %esp,%ebp
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pushl %ds
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pushl 0x0c(%ebp) /* Output Param */
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pushl %ds
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pushl 0x08(%ebp) /* Input Param */
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movl $0,%eax /* Clear EAX (return 0) */
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movw %cs,smapi32_segment /* Save CS */
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lcall *(smapi32_offset)
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leave
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ret
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