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| author | Kartik Agaram <vc@akkartik.com> | 2019-05-10 16:45:22 -0700 |
|---|---|---|
| committer | Kartik Agaram <vc@akkartik.com> | 2019-05-10 16:45:22 -0700 |
| commit | c88b9e31259d433c7e63fcb19d430daf9b1c723c (patch) | |
| tree | 12de1a20312a788d07ef6564084b7ca81aa15ba1 /subx/070new-stream.subx | |
| parent | cdfb2dbfcf18cd2f23bf74199082392c3692a599 (diff) | |
| download | mu-c88b9e31259d433c7e63fcb19d430daf9b1c723c.tar.gz | |
5151 - use mmap everywhere we need a heap
All tests passing now. Things are very explicit; before a program can `allocate` memory, it has to first obtain a segment from the OS using `new-segment`.
Diffstat (limited to 'subx/070new-stream.subx')
| -rw-r--r-- | subx/070new-stream.subx | 15 |
1 files changed, 8 insertions, 7 deletions
diff --git a/subx/070new-stream.subx b/subx/070new-stream.subx index ad6ab68d..8a833581 100644 --- a/subx/070new-stream.subx +++ b/subx/070new-stream.subx @@ -68,20 +68,21 @@ test-new-stream: # . prolog 55/push-EBP 89/copy 3/mod/direct 5/rm32/EBP . . . 4/r32/ESP . . # copy ESP to EBP - # var ad/ECX : (address allocation-descriptor) = allocate-region(Heap, 512) - # . EAX = allocate-region(Heap, 512) + # var heap/ECX : (address allocation-descriptor) = {0, 0} + 68/push 0/imm32/limit + 68/push 0/imm32/curr + 89/copy 3/mod/direct 1/rm32/ECX . . . 4/r32/ESP . . # copy ESP to ECX + # heap = new-segment(512) # . . push args + 51/push-ECX 68/push 0x200/imm32 - 68/push Heap/imm32 # . . call - e8/call allocate-region/disp32 + e8/call new-segment/disp32 # . . discard args 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP - # . ECX = EAX - 89/copy 3/mod/direct 1/rm32/ECX . . . 0/r32/EAX . . # copy EAX to ECX # var start/EDX = ad->curr 8b/copy 0/mod/indirect 1/rm32/ECX . . . 2/r32/EDX . . # copy *ECX to EDX - # EAX = new-stream(ad, 3, 2) + # EAX = new-stream(heap, 3, 2) # . . push args 68/push 2/imm32 68/push 3/imm32 |