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| author | Kartik Agaram <vc@akkartik.com> | 2020-04-03 00:19:31 -0700 |
|---|---|---|
| committer | Kartik Agaram <vc@akkartik.com> | 2020-05-18 00:44:46 -0700 |
| commit | ca358b17a3fc36adcfbbb565675998de2d3e3576 (patch) | |
| tree | 32c1d8726f4593521e1bc67b8e2d1ae4633c2d40 /070new-stream.subx | |
| parent | 546a92985f7da2491077d641a2c118b4af7f6913 (diff) | |
| download | mu-ca358b17a3fc36adcfbbb565675998de2d3e3576.tar.gz | |
table primitives working
$ ./translate_subx init.linux 0*.subx && ./a.elf test
Diffstat (limited to '070new-stream.subx')
| -rw-r--r-- | 070new-stream.subx | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/070new-stream.subx b/070new-stream.subx index b4326096..a219c347 100644 --- a/070new-stream.subx +++ b/070new-stream.subx @@ -5,14 +5,14 @@ # . op subop mod rm32 base index scale r32 # . 1-3 bytes 3 bits 2 bits 3 bits 3 bits 3 bits 2 bits 2 bits 0/1/2/4 bytes 0/1/2/4 bytes -new-stream: # ad: (addr allocation-descriptor), length: int, elemsize: int, out: (handle stream _) +new-stream: # ad: (addr allocation-descriptor), length: int, elemsize: int, out: (addr handle stream _) # . prologue 55/push-ebp 89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp # . save registers 50/push-eax 52/push-edx - # var n/eax: int = elemsize * length + 12 (for read, write and size) + # var size/edx: int = elemsize*length (clobbering eax) # . eax = elemsize 8b/copy 1/mod/*+disp8 5/rm32/ebp . . . 0/r32/eax 0x10/disp8 . # copy *(ebp+16) to eax # . eax *= length @@ -23,7 +23,7 @@ new-stream: # ad: (addr allocation-descriptor), length: int, elemsize: int, out 75/jump-if-!= $new-stream:abort/disp8 # . edx = elemsize*length 89/copy 3/mod/direct 2/rm32/edx . . . 0/r32/eax . . # copy eax to edx - # . eax += 12 + # var n/eax: int = size + 12 (for read, write and size) 05/add-to-eax 0xc/imm32 # allocate(ad, n, out) # . . push args @@ -39,7 +39,7 @@ new-stream: # ad: (addr allocation-descriptor), length: int, elemsize: int, out 8b/copy 1/mod/*+disp8 0/rm32/eax . . . 0/r32/eax 4/disp8 . # copy *(eax+4) to eax # skip payload->allocid 05/add-to-eax 4/imm32 - # eax->size = elemsize*length + # eax->size = size 89/copy 1/mod/*+disp8 0/rm32/eax . . . 2/r32/edx 8/disp8 . # copy edx to *(eax+8) # clear-stream(eax) # . . push args |