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shave one byte

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Peter Ferrie 2021-11-23 20:17:18 -08:00
parent 7e8979fa7c
commit 041d23e99b
2 changed files with 5 additions and 5 deletions
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sectorlisp.S
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@ -111,7 +111,8 @@ GetObject: # called just after GetToken
dec %di
scasb
jne 1b
jmp 5f
pop %ax # restore 1
ret
2: pop %bp # drop 1
mov %cx,%si
3: scasb
@ -123,8 +124,8 @@ GetObject: # called just after GetToken
dec %di
scasb
jnz 4b
5: pop %ax # restore 1
.ret: ret
pop %ax # restore 1
ret
GetChar:xor %ax,%ax # GetChar→al:dl
int $0x16 # get keystroke
@ -140,8 +141,7 @@ PutChar:mov $0x0e,%ah # prints CP-437
Pairlis:test %di,%di # Pairlis(x:di,y:si,a:dx):ax
jz 1f # jump if nil
push (%bx,%di) # save 1 Cdr(x)
lodsw
push (%si) # save 2 Cdr(y)
push (%bx,%si) # save 2 Cdr(y)
mov (%di),%di
call Cons # preserves dx
pop %si # restore 2