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https://github.com/bytecodealliance/wasm-micro-runtime.git
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70 lines
2.2 KiB
ArmAsm
70 lines
2.2 KiB
ArmAsm
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/*
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* Copyright (C) 2019 Intel Corporation. All rights reserved.
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* SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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*/
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.text
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.align 2
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#ifndef BH_PLATFORM_DARWIN
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.globl invokeNative
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.type invokeNative, function
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invokeNative:
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#else
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.globl _invokeNative
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_invokeNative:
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#endif /* end of BH_PLATFORM_DARWIN */
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/*
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* Arguments passed in:
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* r0: function ptr
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* r1: argv
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* r2: nstacks
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* ARC ABI:
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* r0-r7: function arguments, caller-saved
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* r8-r12: temp registers, caller-saved
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*/
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push_s blink /* push return addr */
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st.aw fp, [sp, -4] /* push fp */
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mov fp, sp /* fp = sp */
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mov r8, r0 /* r8 = func_ptr */
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mov r9, r1 /* r9 = argv */
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mov r10, r2 /* r10 = nstacks */
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ld r0, [r9, 0] /* r0 = argv[0] */
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ld r1, [r9, 4] /* r1 = argv[1] */
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ld r2, [r9, 8] /* r2 = argv[2] */
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ld r3, [r9, 12] /* r3 = argv[3] */
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ld r4, [r9, 16] /* r4 = argv[4] */
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ld r5, [r9, 20] /* r5 = argv[5] */
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ld r6, [r9, 24] /* r6 = argv[6] */
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ld r7, [r9, 28] /* r7 = argv[7] */
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add r9, r9, 32 /* r9 = stack_args */
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breq r10, 0, call_func /* if (r10 == 0) goto call_func */
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asl r11, r10, 2 /* r11 = nstacks * 4 */
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sub sp, sp, r11 /* sp = sp - nstacks * 4 */
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and sp, sp, ~7 /* make sp 8-byte aligned */
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mov r11, sp /* r11 = sp */
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loop_stack_args:
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breq r10, 0, call_func /* if (r10 == 0) goto call_func */
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ld r12, [r9] /* r12 = stack_args[i] */
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st r12, [r11] /* stack[i] = r12 */
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add r9, r9, 4 /* r9 = r9 + 4 */
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add r11, r11, 4 /* r11 = r11 + 4 */
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sub r10, r10, 1 /* r10 = r10 + 1 */
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j loop_stack_args
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call_func:
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jl [r8] /* call function */
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mov sp, fp /* sp = fp */
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ld.ab fp, [sp, 4] /* pop fp */
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pop_s blink /* pop return addr */
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j_s [blink] /* ret */
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nop_s
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