aboutsummaryrefslogtreecommitdiff
path: root/src/runtime/sys_windows_arm.s
diff options
context:
space:
mode:
Diffstat (limited to 'src/runtime/sys_windows_arm.s')
-rw-r--r--src/runtime/sys_windows_arm.s70
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