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https://opencores.org/ocsvn/openrisc_2011-10-31/openrisc_2011-10-31/trunk
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| Rev 24 |
Rev 33 |
# r0-r3 are used as tmps, consider them call clobbered by these macros.
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# r0-r3 are used as tmps, consider them call clobbered by these macros.
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.macro start
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.macro start
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.data
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.data
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failmsg:
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failmsg:
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.ascii "fail\n"
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.ascii "fail\n"
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passmsg:
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passmsg:
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.ascii "pass\n"
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.ascii "pass\n"
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.text
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.text
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.global _start
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.global _start
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_start:
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_start:
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.endm
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.endm
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.macro exit rc
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.macro exit rc
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ldi8 r1, \rc
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ldi8 r1, \rc
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ldi8 r0, #1
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ldi8 r0, #1
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trap #0
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trap #0
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.endm
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.endm
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.macro pass
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.macro pass
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ldi8 r3, 5
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ldi8 r3, 5
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ld24 r2, passmsg
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ld24 r2, passmsg
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ldi8 r1, 1
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ldi8 r1, 1
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ldi8 r0, 5
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ldi8 r0, 5
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trap #0
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trap #0
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exit 0
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exit 0
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.endm
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.endm
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.macro fail
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.macro fail
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ldi8 r3, 5
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ldi8 r3, 5
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ld24 r2, failmsg
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ld24 r2, failmsg
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ldi8 r1, 1
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ldi8 r1, 1
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ldi8 r0, 5
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ldi8 r0, 5
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trap #0
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trap #0
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exit 1
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exit 1
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.endm
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.endm
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.macro mvi_h_gr reg, val
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.macro mvi_h_gr reg, val
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.if (\val >= -128) && (\val <= 127)
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.if (\val >= -128) && (\val <= 127)
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ldi8 \reg, \val
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ldi8 \reg, \val
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.else
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.else
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seth \reg, high(\val)
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seth \reg, high(\val)
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or3 \reg, \reg, low(\val)
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or3 \reg, \reg, low(\val)
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.endif
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.endif
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.endm
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.endm
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.macro mvaddr_h_gr reg, addr
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.macro mvaddr_h_gr reg, addr
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seth \reg, high(\addr)
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seth \reg, high(\addr)
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or3 \reg, \reg, low(\addr)
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or3 \reg, \reg, low(\addr)
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.endm
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.endm
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# Other macros know this only clobbers r0.
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# Other macros know this only clobbers r0.
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.macro test_h_gr reg, val
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.macro test_h_gr reg, val
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mvaddr_h_gr r0, \val
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mvaddr_h_gr r0, \val
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beq \reg, r0, test_gr\@
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beq \reg, r0, test_gr\@
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fail
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fail
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test_gr\@:
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test_gr\@:
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.endm
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.endm
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.macro mvi_h_condbit val
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.macro mvi_h_condbit val
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ldi8 r0, 0
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ldi8 r0, 0
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ldi8 r1, 1
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ldi8 r1, 1
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.if \val
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.if \val
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cmp r0, r1
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cmp r0, r1
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.else
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.else
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cmp r1, r0
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cmp r1, r0
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.endif
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.endif
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.endm
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.endm
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.macro test_h_condbit val
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.macro test_h_condbit val
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.if \val
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.if \val
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bc test_c1\@
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bc test_c1\@
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fail
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fail
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test_c1\@:
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test_c1\@:
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.else
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.else
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bnc test_c0\@
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bnc test_c0\@
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fail
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fail
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test_c0\@:
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test_c0\@:
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.endif
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.endif
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.endm
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.endm
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.macro mvi_h_accum0 hi, lo
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.macro mvi_h_accum0 hi, lo
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mvi_h_gr r0, \hi
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mvi_h_gr r0, \hi
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mvtachi r0
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mvtachi r0
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mvi_h_gr r0, \lo
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mvi_h_gr r0, \lo
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mvtaclo r0
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mvtaclo r0
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.endm
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.endm
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.macro test_h_accum0 hi, lo
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.macro test_h_accum0 hi, lo
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mvfachi r1
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mvfachi r1
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test_h_gr r1, \hi
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test_h_gr r1, \hi
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mvfaclo r1
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mvfaclo r1
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test_h_gr r1, \lo
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test_h_gr r1, \lo
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.endm
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.endm
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