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| author | Kartik Agaram <vc@akkartik.com> | 2020-05-03 19:26:20 -0700 |
|---|---|---|
| committer | Kartik Agaram <vc@akkartik.com> | 2020-05-18 00:44:48 -0700 |
| commit | 47d03b6d0c4605323f046ce5e1d5939007c9472e (patch) | |
| tree | 9132e3976e9d3f148c08ae3fc2aa588977ab4c52 | |
| parent | c3b06842fa11ceb446570d6267ebf676ab40ff51 (diff) | |
| download | mu-47d03b6d0c4605323f046ce5e1d5939007c9472e.tar.gz | |
mu.subx: new-reg-var-def
| -rw-r--r-- | apps/mu.subx | 25 |
1 files changed, 11 insertions, 14 deletions
diff --git a/apps/mu.subx b/apps/mu.subx index 84048477..953fb07b 100644 --- a/apps/mu.subx +++ b/apps/mu.subx @@ -5937,29 +5937,26 @@ $new-var-def:end: 5d/pop-to-ebp c3/return -# TODO new-reg-var-def: # ad: (addr allocation-descriptor), var: (handle var), out: (addr handle stmt) # . prologue 55/push-ebp 89/<- %ebp 4/r32/esp # . save registers - 51/push-ecx - 57/push-edi - # ecx = var - 8b/-> *(ebp+0xc) 1/r32/ecx - # edi = result - (allocate *(ebp+8) *Stmt-size) # => eax - 89/<- %edi 0/r32/eax + 50/push-eax + # eax = out + 8b/-> *(ebp+0x14) 0/r32/eax + # + (allocate *(ebp+8) *Stmt-size %eax) + # var out-addr/eax: (addr stmt) = lookup(*out) + (lookup *eax *(eax+4)) # => eax # set tag - c7 0/subop/copy *edi 3/imm32/tag/var-in-register # Stmt-tag + c7 0/subop/copy *eax 3/imm32/tag/var-in-register # Stmt-tag # set output - (append-stmt-var Heap %ecx *(edi+0xc) 0) # Regvardef-outputs => eax - 89/<- *(edi+0xc) 0/r32/eax # Regvardef-outputs + 8d/copy-address *(eax+0x14) 0/r32/eax # Regvardef-outputs + (append-stmt-var Heap *(ebp+0xc) *(ebp+0x10) 0 0 0 %eax) $new-reg-var-def:end: - 89/<- %eax 7/r32/edi # . restore registers - 5f/pop-to-edi - 59/pop-to-ecx + 58/pop-to-eax # . epilogue 89/<- %esp 5/r32/ebp 5d/pop-to-ebp |