diff options
Diffstat (limited to 'config/bsd/powerpc.s')
| -rw-r--r-- | config/bsd/powerpc.s | 78 |
1 files changed, 0 insertions, 78 deletions
diff --git a/config/bsd/powerpc.s b/config/bsd/powerpc.s deleted file mode 100644 index 8044959..0000000 --- a/config/bsd/powerpc.s +++ /dev/null @@ -1,78 +0,0 @@ -# -# coswitch for the PowerPC architecture -# - - .file "rswitch.s" - - .data -errmsg: .string "new_context() returned in coswitch\n" - - .text - .align 2 - .globl coswitch - .type coswitch,@function - -coswitch: - stwu 1, -80(1) # allocate stack frame - - # Save Old Context: - stw 1, 0(3) # SP - mflr 0 - stw 0, 4(3) # LR (return address) - stw 14, 0(1) # GPRs 14-31 (save on stack) - stw 15, 4(1) - stw 16, 8(1) - stw 17, 12(1) - stw 18, 16(1) - stw 19, 20(1) - stw 20, 24(1) - stw 21, 28(1) - stw 22, 32(1) - stw 23, 36(1) - stw 24, 40(1) - stw 25, 44(1) - stw 26, 48(1) - stw 27, 52(1) - stw 28, 56(1) - stw 29, 60(1) - stw 30, 64(1) - stw 31, 68(1) - - cmpi 0, 5, 0 - beq first # if first time - - # Restore new context: - lwz 1, 0(4) # SP - lwz 0, 4(4) # LR - mtlr 0 - lwz 14, 0(1) # GPRs 14-31 (from stack) - lwz 15, 4(1) - lwz 16, 8(1) - lwz 17, 12(1) - lwz 18, 16(1) - lwz 19, 20(1) - lwz 20, 24(1) - lwz 21, 28(1) - lwz 22, 32(1) - lwz 23, 36(1) - lwz 24, 40(1) - lwz 25, 44(1) - lwz 26, 48(1) - lwz 27, 52(1) - lwz 28, 56(1) - lwz 29, 60(1) - lwz 30, 64(1) - lwz 31, 68(1) - - addic 1, 1, 80 # deallocate stack frame - blr # return into new context - -first: # First-time call: - lwz 1, 0(4) # SP as figured by Icon - addic 1, 1, -64 # save area for callee - addi 3, 0, 0 # arg1 - addi 4, 0, 0 # arg2 - bl new_context # new_context(0,0) - lis 3, errmsg@ha - la 3, errmsg@l(3) - bl syserr |