49 lines
986 B
ArmAsm
49 lines
986 B
ArmAsm
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.type _start, @function
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.global _start
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_start:
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li a0, 4
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la a1, 0x40004326
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sw a0, 0(a1)
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nop
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nop
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nop
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lw a2, 0(a1)
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li a0, 0
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.word 0x0005006b # tmc a0
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# la a1, vx_set_sp
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# li a0, 4
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# .word 0x00b5106b # wspawn a0(numWarps), a1(PC SPAWN)
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# jal vx_set_sp
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# jal main
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# li a0, 0
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# .word 0x0005006b # tmc a0
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.type vx_set_sp, @function
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.global vx_set_sp
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vx_set_sp:
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li a0, 4
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.word 0x0005006b # tmc 4
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csrr a3, 0x21 # get wid
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slli a3, a3, 15 # shift by wid
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csrr a2, 0x20 # get tid
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slli a1, a2, 10 # multiply tid by 1024
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slli a2, a2, 2 # multiply tid by 4
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lui sp, 0x6ffff # load base sp
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sub sp, sp, a1 # sub sp - (1024*tid)
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sub sp, sp, a3 # shoft per warp
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add sp, sp, a2 # shift sp for better performance
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csrr a3, 0x21 # get wid
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beqz a3, RETURN
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li a0, 0
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.word 0x0005006b # tmc 0
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RETURN:
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ret
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