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| author | DJ Delorie <dj@redhat.com> | 2010-10-22 15:56:51 -0400 |
|---|---|---|
| committer | DJ Delorie <dj@gcc.gnu.org> | 2010-10-22 15:56:51 -0400 |
| commit | f6bac694c268aa6bd605c215f7aae27ff774631d (patch) | |
| tree | cf3f19139965e023b2decc8bbc4c03d514314504 /gcc/config/m32c | |
| parent | 4d1bc60a12eafe8aed38fff234a4f6ca16f78501 (diff) | |
| download | gcc-f6bac694c268aa6bd605c215f7aae27ff774631d.zip gcc-f6bac694c268aa6bd605c215f7aae27ff774631d.tar.gz gcc-f6bac694c268aa6bd605c215f7aae27ff774631d.tar.bz2 | |
* config/m32c/m32c-lib1.S (m32c_jsri16): Make reentrant.
From-SVN: r165859
Diffstat (limited to 'gcc/config/m32c')
| -rw-r--r-- | gcc/config/m32c/m32c-lib1.S | 32 |
1 files changed, 20 insertions, 12 deletions
diff --git a/gcc/config/m32c/m32c-lib1.S b/gcc/config/m32c/m32c-lib1.S index 9556e09..777781b 100644 --- a/gcc/config/m32c/m32c-lib1.S +++ b/gcc/config/m32c/m32c-lib1.S @@ -204,20 +204,28 @@ cmpsi_lt: #endif #ifdef L__m32c_jsri16 - .data -m32c_jsri_addr: - .byte 0, 0, 0 -m32c_jsri_ret: - .byte 0, 0, 0 - .text +#ifdef A16 .global m32c_jsri16 m32c_jsri16: - pop.w m32c_jsri_ret - pop.b m32c_jsri_ret+2 - pop.w m32c_jsri_addr - push.b m32c_jsri_ret+2 - push.w m32c_jsri_ret - jmpi.a m32c_jsri_addr + add.w #-1, sp + + /* Read the address (16 bits) and return address (24 bits) off + the stack. */ + mov.w 4[sp], r0 + mov.w 1[sp], r3 + mov.b 3[sp], a0 /* This zero-extends, so the high byte has + zero in it. */ + + /* Write the return address, then new address, to the stack. */ + mov.w a0, 1[sp] /* Just to get the zero in 2[sp]. */ + mov.w r0, 0[sp] + mov.w r3, 3[sp] + mov.b a0, 5[sp] + + /* This "returns" to the target address, leaving the pending + return address on the stack. */ + rts +#endif #endif |