small operator handling tweak
This commit is contained in:
1 parent
831bc8f453
commit
8aa3aed586
3 files changed
+28
-29
No files matched your search
@@ -206,14 +206,14 @@ FRMEVL_push_operator_address:
|
||||
|
||||
// XXX add support for other operators, use .Y
|
||||
|
||||
lda operator_jumptable_hi - 1, y
|
||||
lda operator_jumptable_hi, y
|
||||
pha
|
||||
lda operator_jumptable_lo - 1, y
|
||||
lda operator_jumptable_lo, y
|
||||
pha
|
||||
|
||||
// Push operator priority
|
||||
|
||||
lda operator_priorities - 1, y
|
||||
lda operator_priorities, y
|
||||
pha
|
||||
|
||||
// Continue
|
||||
|
||||
@@ -18,19 +18,18 @@ fetch_operator: // XXX change the operator code to start from 0
|
||||
// Check if within range
|
||||
|
||||
sec
|
||||
sbc #$A9
|
||||
sbc #$AA
|
||||
bcc fetch_operator_failed // branch if below 0
|
||||
beq fetch_operator_failed // branch 0
|
||||
|
||||
cmp #$0B
|
||||
bcs fetch_operator_failed // branch if $0B or greater
|
||||
cmp #$0A
|
||||
bcs fetch_operator_failed // branch if $0A or greater
|
||||
|
||||
// Now we have to recognize '>=', '<=' and '<>' operators
|
||||
|
||||
cmp #$08
|
||||
cmp #$07
|
||||
beq fetch_operator_try_gteq
|
||||
|
||||
cmp #$0A
|
||||
cmp #$09
|
||||
beq fetch_operator_try_lteq_neq
|
||||
|
||||
// FALLTROUGH
|
||||
@@ -57,12 +56,12 @@ fetch_operator_try_gteq:
|
||||
// This is a '>'
|
||||
|
||||
jsr unconsume_character
|
||||
lda #$08
|
||||
lda #$07
|
||||
bne fetch_operator_success // branch always
|
||||
!:
|
||||
// This is a '>='
|
||||
|
||||
lda #$0B
|
||||
lda #$0A
|
||||
bne fetch_operator_success // branch always
|
||||
|
||||
|
||||
@@ -79,15 +78,15 @@ fetch_operator_try_lteq_neq:
|
||||
// This is a '<'
|
||||
|
||||
jsr unconsume_character
|
||||
lda #$0A
|
||||
lda #$09
|
||||
bne fetch_operator_success // branch always
|
||||
!:
|
||||
// This is a '<='
|
||||
|
||||
lda #$0C
|
||||
lda #$0B
|
||||
bne fetch_operator_success // branch always
|
||||
!:
|
||||
// This is a '<>'
|
||||
|
||||
lda #$0D
|
||||
lda #$0C
|
||||
bne fetch_operator_success // branch always
|
||||
@@ -11,30 +11,30 @@
|
||||
|
||||
// Tokens $AA-$B0
|
||||
|
||||
oper_add, // ID: $01
|
||||
oper_sub, // ID: $02
|
||||
oper_mul, // ID: $03
|
||||
oper_div, // ID: $04
|
||||
oper_pow, // ID: $05
|
||||
oper_and, // ID: $06
|
||||
oper_or, // ID: $07
|
||||
oper_add, // ID: $00
|
||||
oper_sub, // ID: $01
|
||||
oper_mul, // ID: $02
|
||||
oper_div, // ID: $03
|
||||
oper_pow, // ID: $04
|
||||
oper_and, // ID: $05
|
||||
oper_or, // ID: $06
|
||||
|
||||
// Tokens $B1-$B3
|
||||
|
||||
oper_cmp_gt, // ID: $08
|
||||
oper_cmp_eq, // ID: $09
|
||||
oper_cmp_lt, // ID: $0A
|
||||
oper_cmp_gt, // ID: $07
|
||||
oper_cmp_eq, // ID: $08
|
||||
oper_cmp_lt, // ID: $09
|
||||
|
||||
// Combined two tokens
|
||||
|
||||
oper_cmp_gteq, // ID: $0B
|
||||
oper_cmp_lteq, // ID: $0C
|
||||
oper_cmp_neq, // ID: $0D
|
||||
oper_cmp_gteq, // ID: $0A
|
||||
oper_cmp_lteq, // ID: $0B
|
||||
oper_cmp_neq, // ID: $0C
|
||||
|
||||
// Unary operators
|
||||
|
||||
oper_unary_minus, // ID: $0E
|
||||
oper_unary_not // ID: $0F
|
||||
oper_unary_minus, // ID: $0D
|
||||
oper_unary_not // ID: $0E
|
||||
)
|
||||
|
||||
|
||||
|
||||
Reference in new issue
Block a user