diff options
Diffstat (limited to 'baremetal/309stream.subx')
| -rw-r--r-- | baremetal/309stream.subx | 21 |
1 files changed, 17 insertions, 4 deletions
diff --git a/baremetal/309stream.subx b/baremetal/309stream.subx index 720ee0eb..0d470ca6 100644 --- a/baremetal/309stream.subx +++ b/baremetal/309stream.subx @@ -65,11 +65,11 @@ write-to-stream: # s: (addr stream _), in: (addr byte), n: int 8b/-> *(ebp+8) 7/r32/edi # var swrite/edx: int = s->write 8b/-> *edi 2/r32/edx - # if (swrite + n > s->size) return + # if (swrite + n > s->size) abort 8b/-> *(ebp+0x10) 1/r32/ecx 01/add-to %ecx 2/r32/edx 3b/compare 1/r32/ecx *(edi+8) - 0f 8f/jump-if-> $write-to-stream:end/disp32 # TODO: abort + 0f 8f/jump-if-> $write-to-stream:abort/disp32 # var out/edx: (addr byte) = s->data + s->write 8d/copy-address *(edi+edx+0xc) 2/r32/edx # var outend/ebx: (addr byte) = out + n @@ -97,6 +97,13 @@ $write-to-stream:end: 5d/pop-to-ebp c3/return +$write-to-stream:abort: + (draw-text-wrapping-right-then-down-from-cursor-over-full-screen 0 "write-to-stream: stream full" 3) # 3=cyan + { + eb/jump loop/disp8 + } + # never gets here + read-from-stream: # s: (addr stream _), out: (addr byte), n: int # . prologue 55/push-ebp @@ -111,11 +118,11 @@ read-from-stream: # s: (addr stream _), out: (addr byte), n: int 8b/-> *(ebp+8) 6/r32/esi # var sread/edx: int = s->read 8b/-> *(esi+4) 2/r32/edx - # if (sread + n > s->write) return + # if (sread + n > s->write) abort 8b/-> *(ebp+0x10) 1/r32/ecx 01/add-to %ecx 2/r32/edx 3b/compare 1/r32/ecx *esi - 0f 8f/jump-if-> $read-from-stream:end/disp32 # TODO: abort + 0f 8f/jump-if-> $read-from-stream:abort/disp32 # var in/edx: (addr byte) = s->data + s->read 8d/copy-address *(esi+edx+0xc) 2/r32/edx # var inend/ebx: (addr byte) = in + n @@ -143,6 +150,12 @@ $read-from-stream:end: 5d/pop-to-ebp c3/return +$read-from-stream:abort: + (draw-text-wrapping-right-then-down-from-cursor-over-full-screen 0 "read-from-stream: stream empty" 3) # 3=cyan + { + eb/jump loop/disp8 + } + stream-first: # s: (addr stream byte) -> result/eax: byte # . prologue 55/push-ebp |