Open question fixed.
This commit is contained in:
Kartik K. Agaram 2021-08-30 00:41:03 -07:00
parent c970190021
commit a479f0d083
2 changed files with 5 additions and 5 deletions

View File

@ -84,7 +84,7 @@ draw-code-point-on-screen-buffer: # buffer: (addr byte), c: code-point, x: int,
8b/-> *(ebp+0xc) 6/r32/esi
# if (c >= 4352) return # unicode planes supported: latin, greek, cyrillic, armenian, hebrew, arabic, syriac, thaana, n'ko, indian (iscii), sinhala, thai, lao, tibetan, myanmar, georgian
# next few to support: CJK, ethiopic, cherokee, ...
81 7/subop/compare %esi 0x1100/imm32
81 7/subop/compare %esi 0x1100/imm32=4352
0f 8d/jump-if->= $draw-code-point-on-screen-buffer:end/disp32
# var letter-bitmap/esi = font[c]
69/multiply %esi 0x21/imm32/glyph-size 6/r32/esi
@ -208,14 +208,14 @@ draw-wide-code-point-on-screen-buffer: # buffer: (addr byte), letter-bitmap: (a
39/compare %edx 7/r32/edi
0f 8d/jump-if->= break/disp32
# var row-bitmap/ebx: byte = *letter-bitmap
8a/byte-> *(esi+1) 3/r32/BL
8a/byte-> *esi 3/r32/BL
# ecx = x
8b/-> *(ebp+0x10) 1/r32/ecx
# first half-row
(draw-run-of-pixels-from-glyph *(ebp+8) %ebx %ecx %edx *(ebp+0x18) *(ebp+0x1c) *(ebp+0x20) *(ebp+0x24))
# second half-row
8a/byte-> *esi 3/r32/BL
49/increment-ecx
8a/byte-> *(esi+1) 3/r32/BL
41/increment-ecx
(draw-run-of-pixels-from-glyph *(ebp+8) %ebx %ecx %edx *(ebp+0x18) *(ebp+0x1c) *(ebp+0x20) *(ebp+0x24))
# ++y
42/increment-edx

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@ -23,5 +23,5 @@ fn main screen: (addr screen), keyboard: (addr keyboard), data-disk: (addr disk)
var text-storage: (stream byte 0x200)
var text/esi: (addr stream byte) <- address text-storage
load-sectors data-disk, 0/lba, 1/num-sectors, text
var dummy/eax: int <- draw-stream-rightward screen, text, 1/x 0x80/xmax 0/y, 0xa/fg, 0/bg
var dummy/eax: int <- draw-stream-rightward screen, text, 0/x 0x80/xmax 0/y, 0xa/fg, 0/bg
}