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ti/kbd: make Alpha and 2nd toggle 

Previously, when being in A-Lock mode, activating Alpha wouldn't make
us go temporarily in digit mode, as is expected.
This commit is contained in:
Virgil Dupras 2019-11-09 13:12:36 -05:00
parent 67f689260f
commit 418af5f626
1 changed files with 10 additions and 4 deletions
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10
kernel/ti/kbd.asm
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@ -90,7 +90,10 @@ kbdGetC:
jr z, .handle2nd
jp .loop
.handleAlpha:
set 0, c
; Toggle Alpha bit in C. Also, if 2ND bit is set, toggle A-Lock mod.
ld a, 1 ; mask for Alpha
xor c
ld c, a
bit 1, c ; 2nd set?
jp z, .loop ; unset? loop
; we've just hit Alpha with 2nd set. Toggle A-Lock and set Alpha to
@ -101,7 +104,10 @@ kbdGetC:
ld c, a
jp .loop
.handle2nd:
set 1, c
; toggle 2ND bit in C
ld a, 2 ; mask for 2ND
xor c
ld c, a
jp .loop
.end: