diff options
Diffstat (limited to 'src/runtime/sys_windows_arm.s')
| -rw-r--r-- | src/runtime/sys_windows_arm.s | 70 |
1 files changed, 0 insertions, 70 deletions
diff --git a/src/runtime/sys_windows_arm.s b/src/runtime/sys_windows_arm.s index 99f33cf07d..c7f2369e57 100644 --- a/src/runtime/sys_windows_arm.s +++ b/src/runtime/sys_windows_arm.s @@ -9,76 +9,6 @@ // Note: For system ABI, R0-R3 are args, R4-R11 are callee-save. -TEXT runtime·asmstdcall_trampoline<ABIInternal>(SB),NOSPLIT,$0 - B runtime·asmstdcall(SB) - -// void runtime·asmstdcall(void *c); -TEXT runtime·asmstdcall(SB),NOSPLIT|NOFRAME,$0 - MOVM.DB.W [R4, R5, R14], (R13) // push {r4, r5, lr} - MOVW R0, R4 // put libcall * in r4 - MOVW R13, R5 // save stack pointer in r5 - - // SetLastError(0) - MOVW $0, R0 - MRC 15, 0, R1, C13, C0, 2 - MOVW R0, 0x34(R1) - - MOVW 8(R4), R12 // libcall->args - - // Do we have more than 4 arguments? - MOVW 4(R4), R0 // libcall->n - SUB.S $4, R0, R2 - BLE loadregs - - // Reserve stack space for remaining args - SUB R2<<2, R13 - BIC $0x7, R13 // alignment for ABI - - // R0: count of arguments - // R1: - // R2: loop counter, from 0 to (n-4) - // R3: scratch - // R4: pointer to libcall struct - // R12: libcall->args - MOVW $0, R2 -stackargs: - ADD $4, R2, R3 // r3 = args[4 + i] - MOVW R3<<2(R12), R3 - MOVW R3, R2<<2(R13) // stack[i] = r3 - - ADD $1, R2 // i++ - SUB $4, R0, R3 // while (i < (n - 4)) - CMP R3, R2 - BLT stackargs - -loadregs: - CMP $3, R0 - MOVW.GT 12(R12), R3 - - CMP $2, R0 - MOVW.GT 8(R12), R2 - - CMP $1, R0 - MOVW.GT 4(R12), R1 - - CMP $0, R0 - MOVW.GT 0(R12), R0 - - BIC $0x7, R13 // alignment for ABI - MOVW 0(R4), R12 // branch to libcall->fn - BL (R12) - - MOVW R5, R13 // free stack space - MOVW R0, 12(R4) // save return value to libcall->r1 - MOVW R1, 16(R4) - - // GetLastError - MRC 15, 0, R1, C13, C0, 2 - MOVW 0x34(R1), R0 - MOVW R0, 20(R4) // store in libcall->err - - MOVM.IA.W (R13), [R4, R5, R15] - TEXT runtime·getlasterror(SB),NOSPLIT,$0 MRC 15, 0, R0, C13, C0, 2 MOVW 0x34(R0), R0 |
