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btcdeb's Issues

Op not incrementing properly

I was expected the #0001 to increment and update according to Learning-Bitcoin-from-the-Command-Line

Expected

$ btcdeb '[OP_3 OP_2 OP_ADD OP_4 OP_SUB]'
btcdeb -- type `btcdeb -h` for start up options
valid script
5 op script loaded. type `help` for usage information
script  |  stack
--------+--------
3       |
2       |
OP_ADD  |
4       |
OP_SUB  |
#0001 3
btcdeb> step
		<> PUSH stack 03
script  |  stack
--------+--------
2       |      03
OP_ADD  |
4       |
OP_SUB  |
#0002 2
btcdeb>
		<> PUSH stack 02
script  |  stack
--------+--------
OP_ADD  |      02
4       |      03
OP_SUB  |
#0003 OP_ADD
btcdeb>
		<> POP  stack
		<> POP  stack
		<> PUSH stack 05
script  |  stack
--------+--------
4       |      05
OP_SUB  |
#0004 4
btcdeb>
		<> PUSH stack 04
script  |  stack
--------+--------
OP_SUB  |      04
        |      05
#0005 OP_SUB
btcdeb>
		<> POP  stack
		<> POP  stack
		<> PUSH stack 01
script  |  stack
--------+--------
        |      01

Actual

$ btcdeb '[OP_3 OP_2 OP_ADD OP_4 OP_SUB]'
btcdeb -- type `btcdeb -h` for start up options
valid script
5 op script loaded. type `help` for usage information
script  |  stack
--------+--------
3       |
2       |
OP_ADD  |
4       |
OP_SUB  |
#0001 3
btcdeb> step
		<> PUSH stack 03
script  |  stack
--------+--------
2       |      03
OP_ADD  |
4       |
OP_SUB  |
#0001 3
btcdeb> step
		<> PUSH stack 02
script  |  stack
--------+--------
OP_ADD  |      02
4       |      03
OP_SUB  |
#0001 3
btcdeb>
		<> POP  stack
		<> POP  stack
		<> PUSH stack 05
script  |  stack
--------+--------
4       |      05
OP_SUB  |
#0001 3
btcdeb>
		<> PUSH stack 04
script  |  stack
--------+--------
OP_SUB  |      04
        |      05
#0001 3
btcdeb>
		<> POP  stack
		<> POP  stack
		<> PUSH stack 01
script  |  stack
--------+--------
        |      01
#0001 3

Success/Fail

When there is nothing left in the command queue and an 1 OP_VERIFY executes, display something like:

image

Otherwise:

image

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