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[/] [scarts/] [trunk/] [toolchain/] [scarts-newlib/] [newlib-1.17.0/] [libgloss/] [mcore/] [syscalls.S] - Blame information for rev 9

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Line No. Rev Author Line
1 9 jlechner 
.macro FUNC_START name
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        .text
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        .globl \name
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        .globl _\name
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\name:
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_\name:
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.endm
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FUNC_START _sbrk
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        mov     r4, r2                  // save increment
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        lrw     r3, brkval
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        ldw     r2, (r3)                // get next spot
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        movi    r5, 7
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        addi    r2, 7                   // round up to 8 bytes
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        andn    r2, r5
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        addu    r4, r2                  // save updated pointer
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        stw     r4, (r3)
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        jmp     r15
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// brk() could go in here too...
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        .data
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        .import _end
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brkval: .long   _end
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FUNC_START _exit
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        mov     r1, r1          // accomodate simulator glitch...
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        .short  0x5000
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        br      _exit           // hard loop here
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// 0x5001 - printf
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// 0x5002 - scanf
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FUNC_START utime
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        .short  0x5003
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        jmp     r15
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.macro stub name value
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FUNC_START \name
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        movi    r1, \value
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        .short  0x50FF
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        jmp     r15
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.endm
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stub _close   6
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stub _lseek  19
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stub _open    5
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stub _read    3
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stub _times  43
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stub _unlink 10
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stub _write   4
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//stub access  33
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//stub creat    8
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//stub link     9
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//stub time    13
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//stub profil 98  // movi r6, 2
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//stub lprofil 98 // movi r6, 4
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